/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.cli;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.nio.charset.CharacterCodingException;
import java.util.*;
import com.google.common.base.Charsets;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.common.collect.Iterables;
import org.apache.commons.lang.StringUtils;
import org.antlr.runtime.tree.Tree;
import org.apache.cassandra.auth.IAuthenticator;
import org.apache.cassandra.exceptions.RequestValidationException;
import org.apache.cassandra.db.ColumnFamilyStoreMBean;
import org.apache.cassandra.db.compaction.CompactionManagerMBean;
import org.apache.cassandra.db.compaction.OperationType;
import org.apache.cassandra.db.marshal.*;
import org.apache.cassandra.io.util.FileUtils;
import org.apache.cassandra.locator.SimpleSnitch;
import org.apache.cassandra.thrift.*;
import org.apache.cassandra.tools.NodeProbe;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.FBUtilities;
import org.apache.cassandra.utils.UUIDGen;
import org.apache.thrift.TBaseHelper;
import org.apache.thrift.TException;
import org.codehaus.jackson.*;
import org.yaml.snakeyaml.Loader;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
// Cli Client Side Library
public class CliClient
{
/**
* Available value conversion functions
* Used by convertValueByFunction(Tree functionCall) method
*/
public enum Function
{
BYTES (BytesType.instance),
INTEGER (IntegerType.instance),
LONG (LongType.instance),
INT (Int32Type.instance),
LEXICALUUID (LexicalUUIDType.instance),
TIMEUUID (TimeUUIDType.instance),
UTF8 (UTF8Type.instance),
ASCII (AsciiType.instance),
DOUBLE (DoubleType.instance),
COUNTERCOLUMN (CounterColumnType.instance);
private AbstractType<?> validator;
Function(AbstractType<?> validator)
{
this.validator = validator;
}
public AbstractType<?> getValidator()
{
return this.validator;
}
public static String getFunctionNames()
{
Function[] functions = Function.values();
StringBuilder functionNames = new StringBuilder();
for (int i = 0; i < functions.length; i++)
{
StringBuilder currentName = new StringBuilder(functions[i].name().toLowerCase());
functionNames.append(currentName.append(((i != functions.length-1) ? ", " : ".")));
}
return functionNames.toString();
}
}
/*
* the <i>add keyspace</i> command requires a list of arguments,
* this enum defines which arguments are valid
*/
private enum AddKeyspaceArgument {
PLACEMENT_STRATEGY,
STRATEGY_OPTIONS,
DURABLE_WRITES
}
/*
* the <i>add column family</i> command requires a list of arguments,
* this enum defines which arguments are valid.
*/
protected enum ColumnFamilyArgument
{
COLUMN_TYPE,
COMPARATOR,
SUBCOMPARATOR,
COMMENT,
READ_REPAIR_CHANCE,
DCLOCAL_READ_REPAIR_CHANCE,
GC_GRACE,
COLUMN_METADATA,
MEMTABLE_OPERATIONS,
MEMTABLE_THROUGHPUT,
DEFAULT_VALIDATION_CLASS,
MIN_COMPACTION_THRESHOLD,
MAX_COMPACTION_THRESHOLD,
REPLICATE_ON_WRITE,
KEY_VALIDATION_CLASS,
COMPACTION_STRATEGY,
COMPACTION_STRATEGY_OPTIONS,
COMPRESSION_OPTIONS,
BLOOM_FILTER_FP_CHANCE,
CACHING,
POPULATE_IO_CACHE_ON_FLUSH
}
private static final String DEFAULT_PLACEMENT_STRATEGY = "org.apache.cassandra.locator.NetworkTopologyStrategy";
private final String NEWLINE = System.getProperty("line.separator");
private final String TAB = " ";
private final Cassandra.Client thriftClient;
private final CliSessionState sessionState;
private String keySpace = null;
private String username = null;
private final Map<String, KsDef> keyspacesMap = new HashMap<String, KsDef>();
private final Map<String, Map<String, CfDef>> cql3KeyspacesMap = new HashMap<String, Map<String, CfDef>>();
private final Map<String, AbstractType<?>> cfKeysComparators;
private ConsistencyLevel consistencyLevel = ConsistencyLevel.ONE;
private final CfAssumptions assumptions = new CfAssumptions();
private CliUserHelp help;
public CliClient(CliSessionState cliSessionState, Cassandra.Client thriftClient)
{
this.sessionState = cliSessionState;
this.thriftClient = thriftClient;
this.cfKeysComparators = new HashMap<String, AbstractType<?>>();
assumptions.readAssumptions();
}
private CliUserHelp getHelp()
{
if (help == null)
help = loadHelp();
return help;
}
private CliUserHelp loadHelp()
{
final InputStream is = CliClient.class.getClassLoader().getResourceAsStream("org/apache/cassandra/cli/CliHelp.yaml");
assert is != null;
try
{
final Constructor constructor = new Constructor(CliUserHelp.class);
TypeDescription desc = new TypeDescription(CliUserHelp.class);
desc.putListPropertyType("commands", CliCommandHelp.class);
final Yaml yaml = new Yaml(new Loader(constructor));
return (CliUserHelp) yaml.load(is);
}
finally
{
FileUtils.closeQuietly(is);
}
}
public void printBanner()
{
sessionState.out.println("Welcome to Cassandra CLI version " + FBUtilities.getReleaseVersionString() + "\n");
sessionState.out.println(getHelp().banner);
}
private void printCQL3TablesWarning(String cmd)
{
sessionState.err.println("\nWARNING: CQL3 tables are intentionally omitted from '" + cmd + "' output.");
sessionState.err.println("See https://issues.apache.org/jira/browse/CASSANDRA-4377 for details.\n");
}
// Execute a CLI Statement
public void executeCLIStatement(String statement) throws CharacterCodingException, TException, TimedOutException, NotFoundException, NoSuchFieldException, InvalidRequestException, UnavailableException, InstantiationException, IllegalAccessException, ClassNotFoundException
{
Tree tree = CliCompiler.compileQuery(statement);
try
{
switch (tree.getType())
{
case CliParser.NODE_EXIT:
cleanupAndExit();
break;
case CliParser.NODE_THRIFT_GET:
executeGet(tree);
break;
case CliParser.NODE_THRIFT_GET_WITH_CONDITIONS:
executeGetWithConditions(tree);
break;
case CliParser.NODE_HELP:
executeHelp(tree);
break;
case CliParser.NODE_THRIFT_SET:
executeSet(tree);
break;
case CliParser.NODE_THRIFT_DEL:
executeDelete(tree);
break;
case CliParser.NODE_THRIFT_COUNT:
executeCount(tree);
break;
case CliParser.NODE_ADD_KEYSPACE:
executeAddKeySpace(tree.getChild(0));
break;
case CliParser.NODE_ADD_COLUMN_FAMILY:
executeAddColumnFamily(tree.getChild(0));
break;
case CliParser.NODE_UPDATE_KEYSPACE:
executeUpdateKeySpace(tree.getChild(0));
break;
case CliParser.NODE_UPDATE_COLUMN_FAMILY:
executeUpdateColumnFamily(tree.getChild(0));
break;
case CliParser.NODE_DEL_COLUMN_FAMILY:
executeDelColumnFamily(tree);
break;
case CliParser.NODE_DEL_KEYSPACE:
executeDelKeySpace(tree);
break;
case CliParser.NODE_SHOW_CLUSTER_NAME:
executeShowClusterName();
break;
case CliParser.NODE_SHOW_VERSION:
executeShowVersion();
break;
case CliParser.NODE_SHOW_KEYSPACES:
executeShowKeySpaces();
break;
case CliParser.NODE_SHOW_SCHEMA:
executeShowSchema(tree);
break;
case CliParser.NODE_DESCRIBE:
executeDescribe(tree);
break;
case CliParser.NODE_DESCRIBE_CLUSTER:
executeDescribeCluster();
break;
case CliParser.NODE_USE_TABLE:
executeUseKeySpace(tree);
break;
case CliParser.NODE_TRACE_NEXT_QUERY:
executeTraceNextQuery();
break;
case CliParser.NODE_CONNECT:
executeConnect(tree);
break;
case CliParser.NODE_LIST:
executeList(tree);
break;
case CliParser.NODE_TRUNCATE:
executeTruncate(tree.getChild(0).getText());
break;
case CliParser.NODE_ASSUME:
executeAssumeStatement(tree);
break;
case CliParser.NODE_CONSISTENCY_LEVEL:
executeConsistencyLevelStatement(tree);
break;
case CliParser.NODE_THRIFT_INCR:
executeIncr(tree, 1L);
break;
case CliParser.NODE_THRIFT_DECR:
executeIncr(tree, -1L);
break;
case CliParser.NODE_DROP_INDEX:
executeDropIndex(tree);
break;
case CliParser.NODE_NO_OP:
// comment lines come here; they are treated as no ops.
break;
default:
sessionState.err.println("Invalid Statement (Type: " + tree.getType() + ")");
if (sessionState.batch)
System.exit(2);
break;
}
}
catch (SchemaDisagreementException e)
{
throw new RuntimeException("schema does not match across nodes, (try again later).", e);
}
}
private void cleanupAndExit()
{
CliMain.disconnect();
assumptions.writeAssumptions();
System.exit(0);
}
public KsDef getKSMetaData(String keyspace)
throws NotFoundException, InvalidRequestException, TException
{
// Lazily lookup keyspace meta-data.
if (!(keyspacesMap.containsKey(keyspace)))
{
KsDef ksDef = thriftClient.describe_keyspace(keyspace);
keyspacesMap.put(keyspace, ksDef);
cql3KeyspacesMap.put(keyspace, loadCql3Defs(thriftClient, ksDef));
assumptions.replayAssumptions(keyspace);
}
return keyspacesMap.get(keyspace);
}
public static Map<String, CfDef> loadCql3Defs(Cassandra.Client thriftClient, KsDef thriftKs)
{
try
{
return loadCql3DefsUnchecked(thriftClient, thriftKs);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
public static Map<String, CfDef> loadCql3DefsUnchecked(Cassandra.Client thriftClient, KsDef thriftKs) throws Exception
{
Map<String, CfDef> cql3Defs = new HashMap<String, CfDef>();
String query = "SELECT columnfamily_name, comparator, default_validator, key_validator FROM system.schema_columnfamilies WHERE keyspace_name='%s'";
String formatted = String.format(query, thriftKs.name);
CqlResult result = thriftClient.execute_cql3_query(ByteBufferUtil.bytes(formatted),
Compression.NONE,
ConsistencyLevel.ONE);
outer:
for (CqlRow row : result.rows)
{
Column rawName = row.columns.get(0);
assert ByteBufferUtil.string(ByteBuffer.wrap(rawName.getName())).equals("columnfamily_name");
String name = ByteBufferUtil.string(ByteBuffer.wrap(rawName.getValue()));
Column rawComparator = row.columns.get(1);
assert ByteBufferUtil.string(ByteBuffer.wrap(rawComparator.getName())).equals("comparator");
String comparator = ByteBufferUtil.string(ByteBuffer.wrap(rawComparator.getValue()));
Column rawValidator = row.columns.get(2);
assert ByteBufferUtil.string(ByteBuffer.wrap(rawValidator.getName())).equals("default_validator");
String validator = ByteBufferUtil.string(ByteBuffer.wrap(rawValidator.getValue()));
Column rawKeyValidator = row.columns.get(3);
assert ByteBufferUtil.string(ByteBuffer.wrap(rawKeyValidator.getName())).equals("key_validator");
String keyValidator = ByteBufferUtil.string(ByteBuffer.wrap(rawKeyValidator.getValue()));
for (CfDef cf_def : thriftKs.cf_defs)
{
if (cf_def.name.equals(name))
continue outer;
}
CfDef thriftDef = new CfDef(thriftKs.name, name)
.setComparator_type(comparator)
.setDefault_validation_class(validator)
.setKey_validation_class(keyValidator)
.setColumn_metadata(Collections.<ColumnDef>emptyList());
cql3Defs.put(name, thriftDef);
}
return cql3Defs;
}
private void executeHelp(Tree tree)
{
if (tree.getChildCount() > 0)
{
String token = tree.getChild(0).getText();
for (CliCommandHelp ch : getHelp().commands)
{
if (token.equals(ch.name))
{
sessionState.out.println(ch.help);
break;
}
}
}
else
{
sessionState.out.println(getHelp().help);
}
}
private void executeCount(Tree statement)
throws TException, InvalidRequestException, UnavailableException, TimedOutException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
Tree columnFamilySpec = statement.getChild(0);
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec, currentCfDefs());
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
ColumnParent colParent = new ColumnParent(columnFamily).setSuper_column((ByteBuffer) null);
if (columnSpecCnt != 0)
{
Tree columnTree = columnFamilySpec.getChild(2);
byte[] superColumn = (columnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(columnTree, null, null).array()
: columnNameAsByteArray(CliCompiler.getColumn(columnFamilySpec, 0), columnFamily);
colParent = new ColumnParent(columnFamily).setSuper_column(superColumn);
}
SliceRange range = new SliceRange(ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, Integer.MAX_VALUE);
SlicePredicate predicate = new SlicePredicate().setColumn_names(null).setSlice_range(range);
int count = thriftClient.get_count(getKeyAsBytes(columnFamily, columnFamilySpec.getChild(1)), colParent, predicate, consistencyLevel);
sessionState.out.printf("%d columns%n", count);
}
private Iterable<CfDef> currentCfDefs()
{
return Iterables.concat(keyspacesMap.get(keySpace).cf_defs, cql3KeyspacesMap.get(keySpace).values());
}
private void executeDelete(Tree statement)
throws TException, InvalidRequestException, UnavailableException, TimedOutException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
Tree columnFamilySpec = statement.getChild(0);
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec, currentCfDefs());
CfDef cfDef = getCfDef(columnFamily);
ByteBuffer key = getKeyAsBytes(columnFamily, columnFamilySpec.getChild(1));
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
byte[] superColumnName = null;
byte[] columnName = null;
boolean isSuper = cfDef.column_type.equals("Super");
if ((columnSpecCnt < 0) || (columnSpecCnt > 2))
{
sessionState.out.println("Invalid row, super column, or column specification.");
return;
}
long startTime = System.nanoTime();
Tree columnTree = (columnSpecCnt >= 1)
? columnFamilySpec.getChild(2)
: null;
Tree subColumnTree = (columnSpecCnt == 2)
? columnFamilySpec.getChild(3)
: null;
if (columnSpecCnt == 1)
{
assert columnTree != null;
byte[] columnNameBytes = (columnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(columnTree, null, null).array()
: columnNameAsByteArray(CliCompiler.getColumn(columnFamilySpec, 0), cfDef);
if (isSuper)
superColumnName = columnNameBytes;
else
columnName = columnNameBytes;
}
else if (columnSpecCnt == 2)
{
assert columnTree != null;
assert subColumnTree != null;
// table.cf['key']['column']['column']
superColumnName = (columnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(columnTree, null, null).array()
: columnNameAsByteArray(CliCompiler.getColumn(columnFamilySpec, 0), cfDef);
columnName = (subColumnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(subColumnTree, null, null).array()
: subColumnNameAsByteArray(CliCompiler.getColumn(columnFamilySpec, 1), cfDef);
}
ColumnPath path = new ColumnPath(columnFamily);
if (superColumnName != null)
path.setSuper_column(superColumnName);
if (columnName != null)
path.setColumn(columnName);
if (isCounterCF(cfDef))
{
thriftClient.remove_counter(key, path, consistencyLevel);
}
else
{
thriftClient.remove(key, path, FBUtilities.timestampMicros(), consistencyLevel);
}
sessionState.out.println(String.format("%s removed.", (columnSpecCnt == 0) ? "row" : "column"));
elapsedTime(startTime);
}
private void doSlice(String keyspace, ByteBuffer key, String columnFamily, byte[] superColumnName, int limit)
throws InvalidRequestException, UnavailableException, TimedOutException, TException, IllegalAccessException, NotFoundException, InstantiationException, NoSuchFieldException
{
long startTime = System.nanoTime();
ColumnParent parent = new ColumnParent(columnFamily);
if(superColumnName != null)
parent.setSuper_column(superColumnName);
SliceRange range = new SliceRange(ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, limit);
SlicePredicate predicate = new SlicePredicate().setColumn_names(null).setSlice_range(range);
CfDef cfDef = getCfDef(columnFamily);
boolean isSuperCF = cfDef.column_type.equals("Super");
List<ColumnOrSuperColumn> columns = thriftClient.get_slice(key, parent, predicate, consistencyLevel);
AbstractType<?> validator;
// Print out super columns or columns.
for (ColumnOrSuperColumn cosc : columns)
{
if (cosc.isSetSuper_column())
{
SuperColumn superColumn = cosc.super_column;
sessionState.out.printf("=> (super_column=%s,", formatColumnName(keyspace, columnFamily, superColumn.name));
for (Column col : superColumn.getColumns())
{
validator = getValidatorForValue(cfDef, col.getName());
sessionState.out.printf("%n (column=%s, value=%s, timestamp=%d%s)", formatSubcolumnName(keyspace, columnFamily, col.name),
validator.getString(col.value), col.timestamp,
col.isSetTtl() ? String.format(", ttl=%d", col.getTtl()) : "");
}
sessionState.out.println(")");
}
else if (cosc.isSetColumn())
{
Column column = cosc.column;
validator = getValidatorForValue(cfDef, column.getName());
String formattedName = isSuperCF
? formatSubcolumnName(keyspace, columnFamily, column.name)
: formatColumnName(keyspace, columnFamily, column.name);
sessionState.out.printf("=> (column=%s, value=%s, timestamp=%d%s)%n",
formattedName,
validator.getString(column.value),
column.timestamp,
column.isSetTtl() ? String.format(", ttl=%d", column.getTtl()) : "");
}
else if (cosc.isSetCounter_super_column())
{
CounterSuperColumn superColumn = cosc.counter_super_column;
sessionState.out.printf("=> (super_column=%s,", formatColumnName(keyspace, columnFamily, superColumn.name));
for (CounterColumn col : superColumn.getColumns())
{
sessionState.out.printf("%n (counter=%s, value=%s)", formatSubcolumnName(keyspace, columnFamily, col.name), col.value);
}
sessionState.out.println(")");
}
else // cosc.isSetCounter_column()
{
CounterColumn column = cosc.counter_column;
String formattedName = isSuperCF
? formatSubcolumnName(keyspace, columnFamily, column.name)
: formatColumnName(keyspace, columnFamily, column.name);
sessionState.out.printf("=> (counter=%s, value=%s)%n", formattedName, column.value);
}
}
sessionState.out.println("Returned " + columns.size() + " results.");
elapsedTime(startTime);
}
private AbstractType<?> getFormatType(String compareWith)
{
Function function;
try
{
function = Function.valueOf(compareWith.toUpperCase());
}
catch (IllegalArgumentException e)
{
try
{
return TypeParser.parse(compareWith);
}
catch (RequestValidationException ce)
{
StringBuilder errorMessage = new StringBuilder("Unknown comparator '" + compareWith + "'. ");
errorMessage.append("Available functions: ");
throw new RuntimeException(errorMessage.append(Function.getFunctionNames()).toString(), e);
}
}
return function.getValidator();
}
// Execute GET statement
private void executeGet(Tree statement)
throws TException, NotFoundException, InvalidRequestException, UnavailableException, TimedOutException, IllegalAccessException, InstantiationException, ClassNotFoundException, NoSuchFieldException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
long startTime = System.nanoTime();
Tree columnFamilySpec = statement.getChild(0);
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec, currentCfDefs());
ByteBuffer key = getKeyAsBytes(columnFamily, columnFamilySpec.getChild(1));
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
CfDef cfDef = getCfDef(columnFamily);
boolean isSuper = cfDef.column_type.equals("Super");
byte[] superColumnName = null;
ByteBuffer columnName;
Tree typeTree = null;
Tree limitTree = null;
int limit = 1000000;
if (statement.getChildCount() >= 2)
{
if (statement.getChild(1).getType() == CliParser.CONVERT_TO_TYPE)
{
typeTree = statement.getChild(1).getChild(0);
if (statement.getChildCount() == 3)
limitTree = statement.getChild(2).getChild(0);
}
else
{
limitTree = statement.getChild(1).getChild(0);
}
}
if (limitTree != null)
{
limit = Integer.parseInt(limitTree.getText());
if (limit == 0)
{
throw new IllegalArgumentException("LIMIT should be greater than zero.");
}
}
// table.cf['key'] -- row slice
if (columnSpecCnt == 0)
{
doSlice(keySpace, key, columnFamily, superColumnName, limit);
return;
}
// table.cf['key']['column'] -- slice of a super, or get of a standard
else if (columnSpecCnt == 1)
{
columnName = getColumnName(columnFamily, columnFamilySpec.getChild(2));
if (isSuper)
{
superColumnName = columnName.array();
doSlice(keySpace, key, columnFamily, superColumnName, limit);
return;
}
}
// table.cf['key']['column']['column'] -- get of a sub-column
else if (columnSpecCnt == 2)
{
superColumnName = getColumnName(columnFamily, columnFamilySpec.getChild(2)).array();
columnName = getSubColumnName(columnFamily, columnFamilySpec.getChild(3));
}
// The parser groks an arbitrary number of these so it is possible to get here.
else
{
sessionState.out.println("Invalid row, super column, or column specification.");
return;
}
AbstractType<?> validator = getValidatorForValue(cfDef, TBaseHelper.byteBufferToByteArray(columnName));
// Perform a get()
ColumnPath path = new ColumnPath(columnFamily);
if(superColumnName != null) path.setSuper_column(superColumnName);
path.setColumn(columnName);
if (isCounterCF(cfDef))
{
doGetCounter(key, path);
elapsedTime(startTime);
return;
}
Column column;
try
{
column = thriftClient.get(key, path, consistencyLevel).column;
}
catch (NotFoundException e)
{
sessionState.out.println("Value was not found");
elapsedTime(startTime);
return;
}
byte[] columnValue = column.getValue();
String valueAsString;
// we have ^(CONVERT_TO_TYPE <type>) inside of GET statement
// which means that we should try to represent byte[] value according
// to specified type
if (typeTree != null)
{
// .getText() will give us <type>
String typeName = CliUtils.unescapeSQLString(typeTree.getText());
// building AbstractType from <type>
AbstractType<?> valueValidator = getFormatType(typeName);
// setting value for output
valueAsString = valueValidator.getString(ByteBuffer.wrap(columnValue));
// updating column value validator class
updateColumnMetaData(cfDef, columnName, valueValidator.toString());
}
else
{
valueAsString = (validator == null) ? new String(columnValue, Charsets.UTF_8) : validator.getString(ByteBuffer.wrap(columnValue));
}
String formattedColumnName = isSuper
? formatSubcolumnName(keySpace, columnFamily, column.name)
: formatColumnName(keySpace, columnFamily, column.name);
// print results
sessionState.out.printf("=> (column=%s, value=%s, timestamp=%d%s)%n",
formattedColumnName,
valueAsString,
column.timestamp,
column.isSetTtl() ? String.format(", ttl=%d", column.getTtl()) : "");
elapsedTime(startTime);
}
private void doGetCounter(ByteBuffer key, ColumnPath path)
throws TException, NotFoundException, InvalidRequestException, UnavailableException, TimedOutException, IllegalAccessException, InstantiationException, ClassNotFoundException, NoSuchFieldException
{
boolean isSuper = path.super_column != null;
CounterColumn column;
try
{
column = thriftClient.get(key, path, consistencyLevel).counter_column;
}
catch (NotFoundException e)
{
sessionState.out.println("Value was not found");
return;
}
String formattedColumnName = isSuper
? formatSubcolumnName(keySpace, path.column_family, column.name)
: formatColumnName(keySpace, path.column_family, column.name);
// print results
sessionState.out.printf("=> (counter=%s, value=%d)%n",
formattedColumnName,
column.value);
}
/**
* Process get operation with conditions (using Thrift get_indexed_slices method)
* @param statement - tree representation of the current statement
* Format: ^(NODE_THRIFT_GET_WITH_CONDITIONS cf ^(CONDITIONS ^(CONDITION >= column1 value1) ...) ^(NODE_LIMIT int)*)
*/
private void executeGetWithConditions(Tree statement)
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
long startTime = System.nanoTime();
IndexClause clause = new IndexClause();
String columnFamily = CliCompiler.getColumnFamily(statement, currentCfDefs());
// ^(CONDITIONS ^(CONDITION $column $value) ...)
Tree conditions = statement.getChild(1);
// fetching column family definition
CfDef columnFamilyDef = getCfDef(columnFamily);
// fetching all columns
SlicePredicate predicate = new SlicePredicate();
SliceRange sliceRange = new SliceRange();
sliceRange.setStart(new byte[0]).setFinish(new byte[0]);
predicate.setSlice_range(sliceRange);
for (int i = 0; i < conditions.getChildCount(); i++)
{
// ^(CONDITION operator $column $value)
Tree condition = conditions.getChild(i);
// =, >, >=, <, <=
String operator = condition.getChild(0).getText();
String columnNameString = CliUtils.unescapeSQLString(condition.getChild(1).getText());
// it could be a basic string or function call
Tree valueTree = condition.getChild(2);
try
{
ByteBuffer value;
ByteBuffer columnName = columnNameAsBytes(columnNameString, columnFamily);
if (valueTree.getType() == CliParser.FUNCTION_CALL)
{
value = convertValueByFunction(valueTree, columnFamilyDef, columnName);
}
else
{
String valueString = CliUtils.unescapeSQLString(valueTree.getText());
value = columnValueAsBytes(columnName, columnFamily, valueString);
}
// index operator from string
IndexOperator idxOperator = CliUtils.getIndexOperator(operator);
// adding new index expression into index clause
clause.addToExpressions(new IndexExpression(columnName, idxOperator, value));
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
List<KeySlice> slices;
clause.setStart_key(new byte[] {});
// when we have ^(NODE_LIMIT Integer)
if (statement.getChildCount() == 3)
{
Tree limitNode = statement.getChild(2);
int limitValue = Integer.parseInt(limitNode.getChild(0).getText());
if (limitValue == 0)
{
throw new IllegalArgumentException("LIMIT should be greater than zero.");
}
clause.setCount(limitValue);
}
try
{
ColumnParent parent = new ColumnParent(columnFamily);
slices = thriftClient.get_indexed_slices(parent, clause, predicate, consistencyLevel);
printSliceList(columnFamilyDef, slices);
}
catch (InvalidRequestException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
elapsedTime(startTime);
}
// Execute SET statement
private void executeSet(Tree statement)
throws TException, InvalidRequestException, UnavailableException, TimedOutException, NoSuchFieldException, InstantiationException, IllegalAccessException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
long startTime = System.nanoTime();
// ^(NODE_COLUMN_ACCESS <cf> <key> <column>)
Tree columnFamilySpec = statement.getChild(0);
Tree keyTree = columnFamilySpec.getChild(1); // could be a function or regular text
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec, currentCfDefs());
CfDef cfDef = getCfDef(columnFamily);
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
String value = CliUtils.unescapeSQLString(statement.getChild(1).getText());
Tree valueTree = statement.getChild(1);
byte[] superColumnName = null;
ByteBuffer columnName;
// table.cf['key']
if (columnSpecCnt == 0)
{
sessionState.err.println("No column name specified, (type 'help;' or '?' for help on syntax).");
return;
}
// table.cf['key']['column'] = 'value'
else if (columnSpecCnt == 1)
{
// get the column name
if (cfDef.column_type.equals("Super"))
{
sessionState.out.println("Column family " + columnFamily + " may only contain SuperColumns");
return;
}
columnName = getColumnName(columnFamily, columnFamilySpec.getChild(2));
}
// table.cf['key']['super_column']['column'] = 'value'
else
{
assert (columnSpecCnt == 2) : "serious parsing error (this is a bug).";
superColumnName = getColumnName(columnFamily, columnFamilySpec.getChild(2)).array();
columnName = getSubColumnName(columnFamily, columnFamilySpec.getChild(3));
}
ByteBuffer columnValueInBytes;
switch (valueTree.getType())
{
case CliParser.FUNCTION_CALL:
columnValueInBytes = convertValueByFunction(valueTree, cfDef, columnName, true);
break;
default:
columnValueInBytes = columnValueAsBytes(columnName, columnFamily, value);
}
ColumnParent parent = new ColumnParent(columnFamily);
if(superColumnName != null)
parent.setSuper_column(superColumnName);
Column columnToInsert = new Column(columnName).setValue(columnValueInBytes).setTimestamp(FBUtilities.timestampMicros());
// children count = 3 mean that we have ttl in arguments
if (statement.getChildCount() == 3)
{
String ttl = statement.getChild(2).getText();
try
{
columnToInsert.setTtl(Integer.parseInt(ttl));
}
catch (NumberFormatException e)
{
sessionState.err.println(String.format("TTL '%s' is invalid, should be a positive integer.", ttl));
return;
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
// do the insert
thriftClient.insert(getKeyAsBytes(columnFamily, keyTree), parent, columnToInsert, consistencyLevel);
sessionState.out.println("Value inserted.");
elapsedTime(startTime);
}
// Execute INCR statement
private void executeIncr(Tree statement, long multiplier)
throws TException, NotFoundException, InvalidRequestException, UnavailableException, TimedOutException, IllegalAccessException, InstantiationException, ClassNotFoundException, NoSuchFieldException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
Tree columnFamilySpec = statement.getChild(0);
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec, currentCfDefs());
ByteBuffer key = getKeyAsBytes(columnFamily, columnFamilySpec.getChild(1));
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
byte[] superColumnName = null;
ByteBuffer columnName;
// table.cf['key']['column'] -- incr standard
if (columnSpecCnt == 1)
{
columnName = getColumnName(columnFamily, columnFamilySpec.getChild(2));
}
// table.cf['key']['column']['column'] -- incr super
else if (columnSpecCnt == 2)
{
superColumnName = getColumnName(columnFamily, columnFamilySpec.getChild(2)).array();
columnName = getSubColumnName(columnFamily, columnFamilySpec.getChild(3));
}
// The parser groks an arbitrary number of these so it is possible to get here.
else
{
sessionState.out.println("Invalid row, super column, or column specification.");
return;
}
ColumnParent parent = new ColumnParent(columnFamily);
if(superColumnName != null)
parent.setSuper_column(superColumnName);
long value = 1L;
// children count = 3 mean that we have by in arguments
if (statement.getChildCount() == 2)
{
String byValue = statement.getChild(1).getText();
try
{
value = Long.parseLong(byValue);
}
catch (NumberFormatException e)
{
sessionState.err.println(String.format("'%s' is an invalid value, should be an integer.", byValue));
return;
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
CounterColumn columnToInsert = new CounterColumn(columnName, multiplier * value);
// do the insert
thriftClient.add(key, parent, columnToInsert, consistencyLevel);
sessionState.out.printf("Value %s%n", multiplier < 0 ? "decremented." : "incremented.");
}
private void executeShowClusterName() throws TException
{
if (!CliMain.isConnected())
return;
sessionState.out.println(thriftClient.describe_cluster_name());
}
/**
* Add a keyspace
* @param statement - a token tree representing current statement
*/
private void executeAddKeySpace(Tree statement)
{
if (!CliMain.isConnected())
return;
// first value is the keyspace name, after that it is all key=value
String keyspaceName = CliUtils.unescapeSQLString(statement.getChild(0).getText());
KsDef ksDef = new KsDef(keyspaceName, DEFAULT_PLACEMENT_STRATEGY, new LinkedList<CfDef>());
try
{
String mySchemaVersion = thriftClient.system_add_keyspace(updateKsDefAttributes(statement, ksDef));
sessionState.out.println(mySchemaVersion);
keyspacesMap.put(keyspaceName, thriftClient.describe_keyspace(keyspaceName));
}
catch (InvalidRequestException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/**
* Add a column family
* @param statement - a token tree representing current statement
*/
private void executeAddColumnFamily(Tree statement)
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
// first value is the column family name, after that it is all key=value
CfDef cfDef = new CfDef(keySpace, CliUtils.unescapeSQLString(statement.getChild(0).getText()));
try
{
String mySchemaVersion = thriftClient.system_add_column_family(updateCfDefAttributes(statement, cfDef));
sessionState.out.println(mySchemaVersion);
keyspacesMap.put(keySpace, thriftClient.describe_keyspace(keySpace));
}
catch (InvalidRequestException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/**
* Update existing keyspace identified by name
* @param statement - tree represeting statement
*/
private void executeUpdateKeySpace(Tree statement)
{
if (!CliMain.isConnected())
return;
try
{
String keyspaceName = CliCompiler.getKeySpace(statement, thriftClient.describe_keyspaces());
KsDef currentKsDef = getKSMetaData(keyspaceName);
KsDef updatedKsDef = updateKsDefAttributes(statement, currentKsDef);
String mySchemaVersion = thriftClient.system_update_keyspace(updatedKsDef);
sessionState.out.println(mySchemaVersion);
keyspacesMap.remove(keyspaceName);
getKSMetaData(keyspaceName);
}
catch (InvalidRequestException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/**
* Update existing column family identified by name
* @param statement - tree represeting statement
*/
private void executeUpdateColumnFamily(Tree statement)
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
String cfName = CliCompiler.getColumnFamily(statement, currentCfDefs());
try
{
// request correct cfDef from the server
CfDef cfDef = getCfDef(thriftClient.describe_keyspace(this.keySpace), cfName);
if (cfDef == null)
throw new RuntimeException("Column Family " + cfName + " was not found in the current keyspace.");
String mySchemaVersion = thriftClient.system_update_column_family(updateCfDefAttributes(statement, cfDef));
sessionState.out.println(mySchemaVersion);
keyspacesMap.put(keySpace, thriftClient.describe_keyspace(keySpace));
}
catch (InvalidRequestException e)
{
throw new RuntimeException(e);
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/**
* Used to update keyspace definition attributes
* @param statement - ANTRL tree representing current statement
* @param ksDefToUpdate - keyspace definition to update
* @return ksDef - updated keyspace definition
*/
private KsDef updateKsDefAttributes(Tree statement, KsDef ksDefToUpdate)
{
KsDef ksDef = new KsDef(ksDefToUpdate);
// removing all column definitions - thrift system_update_keyspace method requires that
ksDef.setCf_defs(new LinkedList<CfDef>());
for(int i = 1; i < statement.getChildCount(); i += 2)
{
String currentStatement = statement.getChild(i).getText().toUpperCase();
AddKeyspaceArgument mArgument = AddKeyspaceArgument.valueOf(currentStatement);
String mValue = statement.getChild(i + 1).getText();
switch(mArgument)
{
case PLACEMENT_STRATEGY:
ksDef.setStrategy_class(CliUtils.unescapeSQLString(mValue));
break;
case STRATEGY_OPTIONS:
ksDef.setStrategy_options(getStrategyOptionsFromTree(statement.getChild(i + 1)));
break;
case DURABLE_WRITES:
ksDef.setDurable_writes(Boolean.parseBoolean(mValue));
break;
default:
//must match one of the above or we'd throw an exception at the valueOf statement above.
assert(false);
}
}
// using default snitch options if strategy is NetworkTopologyStrategy and no options were set.
if (ksDef.getStrategy_class().contains(".NetworkTopologyStrategy"))
{
Map<String, String> currentStrategyOptions = ksDef.getStrategy_options();
// adding default data center from SimpleSnitch
if (currentStrategyOptions == null || currentStrategyOptions.isEmpty())
{
SimpleSnitch snitch = new SimpleSnitch();
Map<String, String> options = new HashMap<String, String>();
try
{
options.put(snitch.getDatacenter(InetAddress.getLocalHost()), "1");
}
catch (UnknownHostException e)
{
throw new RuntimeException(e);
}
ksDef.setStrategy_options(options);
}
}
return ksDef;
}
/**
* Update column family definition attributes
* @param statement - ANTLR tree representing current statement
* @param cfDefToUpdate - column family definition to apply updates on
* @return cfDef - updated column family definition
*/
private CfDef updateCfDefAttributes(Tree statement, CfDef cfDefToUpdate)
{
CfDef cfDef = new CfDef(cfDefToUpdate);
for (int i = 1; i < statement.getChildCount(); i += 2)
{
String currentArgument = statement.getChild(i).getText().toUpperCase();
ColumnFamilyArgument mArgument = ColumnFamilyArgument.valueOf(currentArgument);
String mValue = statement.getChild(i + 1).getText();
switch(mArgument)
{
case COLUMN_TYPE:
cfDef.setColumn_type(CliUtils.unescapeSQLString(mValue));
break;
case COMPARATOR:
cfDef.setComparator_type(CliUtils.unescapeSQLString(mValue));
break;
case SUBCOMPARATOR:
cfDef.setSubcomparator_type(CliUtils.unescapeSQLString(mValue));
break;
case COMMENT:
cfDef.setComment(CliUtils.unescapeSQLString(mValue));
break;
case READ_REPAIR_CHANCE:
double chance = Double.parseDouble(mValue);
if (chance < 0 || chance > 1)
throw new RuntimeException("Error: read_repair_chance must be between 0 and 1.");
cfDef.setRead_repair_chance(chance);
break;
case DCLOCAL_READ_REPAIR_CHANCE:
double localChance = Double.parseDouble(mValue);
if (localChance < 0 || localChance > 1)
throw new RuntimeException("Error: dclocal_read_repair_chance must be between 0 and 1.");
cfDef.setDclocal_read_repair_chance(localChance);
break;
case GC_GRACE:
cfDef.setGc_grace_seconds(Integer.parseInt(mValue));
break;
case COLUMN_METADATA:
Tree arrayOfMetaAttributes = statement.getChild(i + 1);
if (!arrayOfMetaAttributes.getText().equals("ARRAY"))
throw new RuntimeException("'column_metadata' format - [{ k:v, k:v, ..}, { ... }, ...]");
cfDef.setColumn_metadata(getCFColumnMetaFromTree(cfDef, arrayOfMetaAttributes));
break;
case MEMTABLE_OPERATIONS:
break;
case MEMTABLE_THROUGHPUT:
break;
case DEFAULT_VALIDATION_CLASS:
cfDef.setDefault_validation_class(CliUtils.unescapeSQLString(mValue));
break;
case MIN_COMPACTION_THRESHOLD:
cfDef.setMin_compaction_threshold(Integer.parseInt(mValue));
break;
case MAX_COMPACTION_THRESHOLD:
cfDef.setMax_compaction_threshold(Integer.parseInt(mValue));
break;
case REPLICATE_ON_WRITE:
cfDef.setReplicate_on_write(Boolean.parseBoolean(mValue));
break;
case KEY_VALIDATION_CLASS:
cfDef.setKey_validation_class(CliUtils.unescapeSQLString(mValue));
break;
case COMPACTION_STRATEGY:
cfDef.setCompaction_strategy(CliUtils.unescapeSQLString(mValue));
break;
case COMPACTION_STRATEGY_OPTIONS:
cfDef.setCompaction_strategy_options(getStrategyOptionsFromTree(statement.getChild(i+1)));
break;
case COMPRESSION_OPTIONS:
cfDef.setCompression_options(getStrategyOptionsFromTree(statement.getChild(i+1)));
break;
case BLOOM_FILTER_FP_CHANCE:
cfDef.setBloom_filter_fp_chance(Double.parseDouble(mValue));
break;
case CACHING:
cfDef.setCaching(CliUtils.unescapeSQLString(mValue));
break;
case POPULATE_IO_CACHE_ON_FLUSH:
cfDef.setPopulate_io_cache_on_flush(Boolean.parseBoolean(mValue));
break;
default:
//must match one of the above or we'd throw an exception at the valueOf statement above.
assert(false);
}
}
return cfDef;
}
/**
* Delete a keyspace
* @param statement - a token tree representing current statement
* @throws TException - exception
* @throws InvalidRequestException - exception
* @throws NotFoundException - exception
* @throws SchemaDisagreementException
*/
private void executeDelKeySpace(Tree statement)
throws TException, InvalidRequestException, NotFoundException, SchemaDisagreementException
{
if (!CliMain.isConnected())
return;
String keyspaceName = CliCompiler.getKeySpace(statement, thriftClient.describe_keyspaces());
String version = thriftClient.system_drop_keyspace(keyspaceName);
sessionState.out.println(version);
if (keyspaceName.equals(keySpace)) //we just deleted the keyspace we were authenticated too
keySpace = null;
}
/**
* Delete a column family
* @param statement - a token tree representing current statement
* @throws TException - exception
* @throws InvalidRequestException - exception
* @throws NotFoundException - exception
* @throws SchemaDisagreementException
*/
private void executeDelColumnFamily(Tree statement)
throws TException, InvalidRequestException, NotFoundException, SchemaDisagreementException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
String cfName = CliCompiler.getColumnFamily(statement, currentCfDefs());
String mySchemaVersion = thriftClient.system_drop_column_family(cfName);
sessionState.out.println(mySchemaVersion);
}
private void executeList(Tree statement)
throws TException, InvalidRequestException, NotFoundException, IllegalAccessException, InstantiationException, NoSuchFieldException, UnavailableException, TimedOutException, CharacterCodingException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
long startTime = System.nanoTime();
// extract column family
String columnFamily = CliCompiler.getColumnFamily(statement, currentCfDefs());
String rawStartKey = "";
String rawEndKey = "";
int limitCount = Integer.MAX_VALUE; // will reset to default later if it's not specified
int columnCount = Integer.MAX_VALUE; // will reset to default later if it's not specified
boolean reversed = false;
// optional arguments: key range and limit
for (int i = 1; i < statement.getChildCount(); i++)
{
Tree child = statement.getChild(i);
if (child.getType() == CliParser.NODE_KEY_RANGE)
{
if (child.getChildCount() > 0)
{
rawStartKey = CliUtils.unescapeSQLString(child.getChild(0).getText());
if (child.getChildCount() > 1)
rawEndKey = CliUtils.unescapeSQLString(child.getChild(1).getText());
}
}
else if (child.getType() == CliParser.NODE_LIMIT)
{
if (child.getChildCount() != 1)
{
sessionState.out.println("Invalid limit clause");
return;
}
limitCount = Integer.parseInt(child.getChild(0).getText());
if (limitCount <= 0)
{
sessionState.out.println("Invalid limit " + limitCount);
return;
}
}
else if (child.getType() == CliParser.NODE_COLUMNS)
{
if ((child.getChildCount() < 1) || (child.getChildCount() > 2))
{
sessionState.err.println("Invalid columns clause.");
return;
}
String columns = child.getChild(0).getText();
try
{
columnCount = Integer.parseInt(columns);
if (columnCount < 0)
{
sessionState.err.println("Invalid column limit: " + columnCount);
return;
}
if (child.getChildCount() == 2)
reversed = child.getChild(1).getType() == CliParser.NODE_REVERSED;
}
catch (NumberFormatException nfe)
{
sessionState.err.println("Invalid column number format: " + columns);
return;
}
}
}
if (limitCount == Integer.MAX_VALUE)
{
limitCount = 100;
sessionState.out.println("Using default limit of 100");
}
if (columnCount == Integer.MAX_VALUE)
{
columnCount = 100;
sessionState.out.println("Using default column limit of 100");
}
CfDef columnFamilyDef = getCfDef(columnFamily);
// read all columns and superColumns
SlicePredicate predicate = new SlicePredicate();
SliceRange sliceRange = new SliceRange();
sliceRange.setStart(new byte[0]).setFinish(new byte[0]);
sliceRange.setCount(columnCount);
sliceRange.setReversed(reversed);
predicate.setSlice_range(sliceRange);
// set the key range
KeyRange range = new KeyRange(limitCount);
AbstractType<?> keyComparator = this.cfKeysComparators.get(columnFamily);
ByteBuffer startKey = rawStartKey.isEmpty() ? ByteBufferUtil.EMPTY_BYTE_BUFFER : getBytesAccordingToType(rawStartKey, keyComparator);
ByteBuffer endKey = rawEndKey.isEmpty() ? ByteBufferUtil.EMPTY_BYTE_BUFFER : getBytesAccordingToType(rawEndKey, keyComparator);
range.setStart_key(startKey).setEnd_key(endKey);
ColumnParent columnParent = new ColumnParent(columnFamily);
List<KeySlice> keySlices = thriftClient.get_range_slices(columnParent, predicate, range, consistencyLevel);
printSliceList(columnFamilyDef, keySlices);
elapsedTime(startTime);
}
// DROP INDEX ON <CF>.<COLUMN>
private void executeDropIndex(Tree statement) throws TException, SchemaDisagreementException, InvalidRequestException, NotFoundException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
// getColumnFamily will check if CF exists for us
String columnFamily = CliCompiler.getColumnFamily(statement, currentCfDefs());
String rawColumName = CliUtils.unescapeSQLString(statement.getChild(1).getText());
CfDef cfDef = getCfDef(columnFamily);
ByteBuffer columnName = columnNameAsBytes(rawColumName, cfDef);
boolean foundColumn = false;
for (ColumnDef column : cfDef.getColumn_metadata())
{
if (column.name.equals(columnName))
{
foundColumn = true;
if (column.getIndex_type() == null)
throw new RuntimeException(String.format("Column '%s' does not have an index.", rawColumName));
column.setIndex_name(null);
column.setIndex_type(null);
}
}
if (!foundColumn)
throw new RuntimeException(String.format("Column '%s' definition was not found in ColumnFamily '%s'.",
rawColumName,
columnFamily));
String mySchemaVersion = thriftClient.system_update_column_family(cfDef);
sessionState.out.println(mySchemaVersion);
keyspacesMap.put(keySpace, thriftClient.describe_keyspace(keySpace));
}
// TRUNCATE <columnFamily>
private void executeTruncate(String columnFamily) throws TException, InvalidRequestException, UnavailableException, TimedOutException
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
// getting CfDef, it will fail if there is no such column family in current keySpace.
CfDef cfDef = getCfDef(CliCompiler.getColumnFamily(columnFamily, currentCfDefs()));
thriftClient.truncate(cfDef.getName());
sessionState.out.println(columnFamily + " truncated.");
}
/**
* Command: CONSISTENCYLEVEL AS (ONE | QUORUM ...)
* Tree: ^(NODE_CONSISTENCY_LEVEL AS (ONE | QUORUM ...))
* @param statement - tree representing current statement
*/
private void executeConsistencyLevelStatement(Tree statement)
{
if (!CliMain.isConnected())
return;
String userSuppliedLevel = statement.getChild(0).getText().toUpperCase();
try
{
consistencyLevel = ConsistencyLevel.valueOf(userSuppliedLevel);
}
catch (IllegalArgumentException e)
{
String elements = "ONE, TWO, THREE, QUORUM, ALL, LOCAL_QUORUM, EACH_QUORUM, ANY";
sessionState.out.println(String.format("'%s' is invalid. Available: %s", userSuppliedLevel, elements));
return;
}
sessionState.out.println(String.format("Consistency level is set to '%s'.", consistencyLevel));
}
/**
* Command: ASSUME <columnFamily> (VALIDATOR | COMPARATOR | KEYS | SUB_COMPARATOR) AS <type>
* Tree: ^(NODE_ASSUME <columnFamily> (VALIDATOR | COMPARATOR | KEYS | SUB_COMPARATOR) <type>))
* @param statement - tree representing current statement
*/
private void executeAssumeStatement(Tree statement)
{
if (!CliMain.isConnected() || !hasKeySpace())
return;
String cfName = CliCompiler.getColumnFamily(statement, currentCfDefs());
// VALIDATOR | COMPARATOR | KEYS | SUB_COMPARATOR
String assumptionElement = statement.getChild(1).getText().toUpperCase();
// Could be UTF8Type, IntegerType, LexicalUUIDType etc.
String defaultType = CliUtils.unescapeSQLString(statement.getChild(2).getText());
if (applyAssumption(cfName, assumptionElement, defaultType))
{
assumptions.addAssumption(keySpace, cfName, assumptionElement, defaultType);
sessionState.out.println(String.format("Assumption for column family '%s' added successfully.", cfName));
}
}
private boolean applyAssumption(String cfName, String assumptionElement, String defaultType)
{
CfDef columnFamily;
try
{
columnFamily = getCfDef(cfName);
}
catch (RuntimeException e)
{
return false; // just fail if CF does not exist
}
// used to store in this.cfKeysComparator
AbstractType<?> comparator;
try
{
comparator = TypeParser.parse(defaultType);
}
catch (RequestValidationException e)
{
try
{
comparator = Function.valueOf(defaultType.toUpperCase()).getValidator();
}
catch (Exception ne)
{
String functions = Function.getFunctionNames();
sessionState.out.println("Type '" + defaultType + "' was not found. Available: " + functions
+ " Or any class which extends o.a.c.db.marshal.AbstractType.");
return false;
}
}
// making string representation look property e.g. o.a.c.db.marshal.UTF8Type
defaultType = comparator.getClass().getName();
if (assumptionElement.equals("COMPARATOR"))
{
columnFamily.setComparator_type(defaultType);
}
else if (assumptionElement.equals("SUB_COMPARATOR"))
{
columnFamily.setSubcomparator_type(defaultType);
}
else if (assumptionElement.equals("VALIDATOR"))
{
columnFamily.setDefault_validation_class(defaultType);
}
else if (assumptionElement.equals("KEYS"))
{
this.cfKeysComparators.put(columnFamily.getName(), comparator);
}
else
{
String elements = "VALIDATOR, COMPARATOR, KEYS, SUB_COMPARATOR.";
sessionState.out.println(String.format("'%s' is invalid. Available: %s", assumptionElement, elements));
return false;
}
return true;
}
// SHOW API VERSION
private void executeShowVersion() throws TException
{
if (!CliMain.isConnected())
return;
sessionState.out.println(thriftClient.describe_version());
}
// SHOW KEYSPACES
private void executeShowKeySpaces() throws TException, InvalidRequestException
{
if (!CliMain.isConnected())
return;
printCQL3TablesWarning("show keyspaces");
List<KsDef> keySpaces = thriftClient.describe_keyspaces();
Collections.sort(keySpaces, new KsDefNamesComparator());
for (KsDef keySpace : keySpaces)
{
describeKeySpace(keySpace.name, keySpace);
}
}
// SHOW SCHEMA
private void executeShowSchema(Tree statement) throws TException, InvalidRequestException
{
if (!CliMain.isConnected())
return;
printCQL3TablesWarning("show schema");
final List<KsDef> keyspaces = thriftClient.describe_keyspaces();
Collections.sort(keyspaces, new KsDefNamesComparator());
final String keyspaceName = (statement.getChildCount() == 0)
? keySpace
: CliCompiler.getKeySpace(statement, keyspaces);
Iterator<KsDef> ksIter;
if (keyspaceName != null)
ksIter = Collections2.filter(keyspaces, new Predicate<KsDef>()
{
public boolean apply(KsDef ksDef)
{
return keyspaceName.equals(ksDef.name);
}
}).iterator();
else
ksIter = keyspaces.iterator();
while (ksIter.hasNext())
showKeyspace(sessionState.out, ksIter.next());
sessionState.out.flush();
}
/**
* Creates a CLI script to create the Keyspace it's Column Families
*
* @param output StringBuilder to write to.
* @param ksDef KsDef to create the cli script for.
*/
private void showKeyspace(PrintStream output, KsDef ksDef)
{
output.append("create keyspace ").append(CliUtils.maybeEscapeName(ksDef.name));
writeAttr(output, true, "placement_strategy", normaliseType(ksDef.strategy_class, "org.apache.cassandra.locator"));
if (ksDef.strategy_options != null && !ksDef.strategy_options.isEmpty())
{
final StringBuilder opts = new StringBuilder();
opts.append("{");
String prefix = "";
for (Map.Entry<String, String> opt : ksDef.strategy_options.entrySet())
{
opts.append(prefix + CliUtils.escapeSQLString(opt.getKey()) + " : " + CliUtils.escapeSQLString(opt.getValue()));
prefix = ", ";
}
opts.append("}");
writeAttrRaw(output, false, "strategy_options", opts.toString());
}
writeAttr(output, false, "durable_writes", ksDef.durable_writes);
output.append(";").append(NEWLINE);
output.append(NEWLINE);
output.append("use " + CliUtils.maybeEscapeName(ksDef.name) + ";");
output.append(NEWLINE);
output.append(NEWLINE);
Collections.sort(ksDef.cf_defs, new CfDefNamesComparator());
for (CfDef cfDef : ksDef.cf_defs)
showColumnFamily(output, cfDef);
output.append(NEWLINE);
output.append(NEWLINE);
}
/**
* Creates a CLI script for the CfDef including meta data to the supplied StringBuilder.
*
* @param output File to write to.
* @param cfDef CfDef to export attributes from.
*/
private void showColumnFamily(PrintStream output, CfDef cfDef)
{
output.append("create column family ").append(CliUtils.maybeEscapeName(cfDef.name));
writeAttr(output, true, "column_type", cfDef.column_type);
writeAttr(output, false, "comparator", normaliseType(cfDef.comparator_type, "org.apache.cassandra.db.marshal"));
if (cfDef.column_type.equals("Super"))
writeAttr(output, false, "subcomparator", normaliseType(cfDef.subcomparator_type, "org.apache.cassandra.db.marshal"));
if (!StringUtils.isEmpty(cfDef.default_validation_class))
writeAttr(output, false, "default_validation_class",
normaliseType(cfDef.default_validation_class, "org.apache.cassandra.db.marshal"));
writeAttr(output, false, "key_validation_class",
normaliseType(cfDef.key_validation_class, "org.apache.cassandra.db.marshal"));
writeAttr(output, false, "read_repair_chance", cfDef.read_repair_chance);
writeAttr(output, false, "dclocal_read_repair_chance", cfDef.dclocal_read_repair_chance);
writeAttr(output, false, "populate_io_cache_on_flush", cfDef.populate_io_cache_on_flush);
writeAttr(output, false, "gc_grace", cfDef.gc_grace_seconds);
writeAttr(output, false, "min_compaction_threshold", cfDef.min_compaction_threshold);
writeAttr(output, false, "max_compaction_threshold", cfDef.max_compaction_threshold);
writeAttr(output, false, "replicate_on_write", cfDef.replicate_on_write);
writeAttr(output, false, "compaction_strategy", cfDef.compaction_strategy);
writeAttr(output, false, "caching", cfDef.caching);
if (cfDef.isSetBloom_filter_fp_chance())
writeAttr(output, false, "bloom_filter_fp_chance", cfDef.bloom_filter_fp_chance);
if (!cfDef.compaction_strategy_options.isEmpty())
{
StringBuilder cOptions = new StringBuilder();
cOptions.append("{");
Map<String, String> options = cfDef.compaction_strategy_options;
int i = 0, size = options.size();
for (Map.Entry<String, String> entry : options.entrySet())
{
cOptions.append(CliUtils.quote(entry.getKey())).append(" : ").append(CliUtils.quote(entry.getValue()));
if (i != size - 1)
cOptions.append(", ");
i++;
}
cOptions.append("}");
writeAttrRaw(output, false, "compaction_strategy_options", cOptions.toString());
}
if (!StringUtils.isEmpty(cfDef.comment))
writeAttr(output, false, "comment", cfDef.comment);
if (!cfDef.column_metadata.isEmpty())
{
output.append(NEWLINE)
.append(TAB)
.append("and column_metadata = [");
boolean first = true;
for (ColumnDef colDef : cfDef.column_metadata)
{
if (!first)
output.append(",");
first = false;
showColumnMeta(output, cfDef, colDef);
}
output.append("]");
}
if (cfDef.compression_options != null && !cfDef.compression_options.isEmpty())
{
StringBuilder compOptions = new StringBuilder();
compOptions.append("{");
int i = 0, size = cfDef.compression_options.size();
for (Map.Entry<String, String> entry : cfDef.compression_options.entrySet())
{
compOptions.append(CliUtils.quote(entry.getKey())).append(" : ").append(CliUtils.quote(entry.getValue()));
if (i != size - 1)
compOptions.append(", ");
i++;
}
compOptions.append("}");
writeAttrRaw(output, false, "compression_options", compOptions.toString());
}
output.append(";");
output.append(NEWLINE);
output.append(NEWLINE);
}
/**
* Writes the supplied ColumnDef to the StringBuilder as a cli script.
*
* @param output The File to write to.
* @param cfDef The CfDef as a source for comparator/validator
* @param colDef The Column Definition to export
*/
private void showColumnMeta(PrintStream output, CfDef cfDef, ColumnDef colDef)
{
output.append(NEWLINE + TAB + TAB + "{");
final AbstractType<?> comparator = getFormatType(cfDef.column_type.equals("Super")
? cfDef.subcomparator_type
: cfDef.comparator_type);
output.append("column_name : '" + CliUtils.escapeSQLString(comparator.getString(colDef.name)) + "'," + NEWLINE);
String validationClass = normaliseType(colDef.validation_class, "org.apache.cassandra.db.marshal");
output.append(TAB + TAB + "validation_class : " + CliUtils.escapeSQLString(validationClass));
if (colDef.isSetIndex_name())
{
output.append(",").append(NEWLINE)
.append(TAB + TAB + "index_name : '" + CliUtils.escapeSQLString(colDef.index_name) + "'," + NEWLINE)
.append(TAB + TAB + "index_type : " + CliUtils.escapeSQLString(Integer.toString(colDef.index_type.getValue())));
if (colDef.index_options != null && !colDef.index_options.isEmpty())
{
output.append(",").append(NEWLINE);
output.append(TAB + TAB + "index_options : {" + NEWLINE);
int numOpts = colDef.index_options.size();
for (Map.Entry<String, String> entry : colDef.index_options.entrySet())
{
String option = CliUtils.escapeSQLString(entry.getKey());
String optionValue = CliUtils.escapeSQLString(entry.getValue());
output.append(TAB + TAB + TAB)
.append("'" + option + "' : '")
.append(optionValue)
.append("'");
if (--numOpts > 0)
output.append(",").append(NEWLINE);
}
output.append("}");
}
}
output.append("}");
}
private String normaliseType(String path, String expectedPackage)
{
if (path.startsWith(expectedPackage))
return path.substring(expectedPackage.length() + 1);
return path;
}
private void writeAttr(PrintStream output, boolean first, String name, Boolean value)
{
writeAttrRaw(output, first, name, value.toString());
}
private void writeAttr(PrintStream output, boolean first, String name, Number value)
{
writeAttrRaw(output, first, name, value.toString());
}
private void writeAttr(PrintStream output, boolean first, String name, String value)
{
writeAttrRaw(output, first, name, "'" + CliUtils.escapeSQLString(value) + "'");
}
private void writeAttrRaw(PrintStream output, boolean first, String name, String value)
{
output.append(NEWLINE).append(TAB);
output.append(first ? "with " : "and ");
output.append(name).append(" = ");
output.append(value);
}
/**
* Returns true if this.keySpace is set, false otherwise
* @return boolean
*/
private boolean hasKeySpace(boolean printError)
{
boolean hasKeyspace = keySpace != null;
if (!hasKeyspace && printError)
sessionState.err.println("Not authorized to a working keyspace.");
return hasKeyspace;
}
private boolean hasKeySpace()
{
return hasKeySpace(true);
}
public String getKeySpace()
{
return keySpace == null ? "unknown" : keySpace;
}
public void setKeySpace(String keySpace) throws NotFoundException, InvalidRequestException, TException
{
this.keySpace = keySpace;
// We do nothing with the return value, but it hits a cache and the tab-completer.
getKSMetaData(keySpace);
}
public String getUsername()
{
return username == null ? "default" : username;
}
public void setUsername(String username)
{
this.username = username;
}
// USE <keyspace_name>
private void executeUseKeySpace(Tree statement) throws TException
{
if (!CliMain.isConnected())
return;
int childCount = statement.getChildCount();
String keySpaceName, username = null, password = null;
// Get keyspace name
keySpaceName = CliUtils.unescapeSQLString(statement.getChild(0).getText());
if (childCount == 3)
{
username = statement.getChild(1).getText();
password = statement.getChild(2).getText();
}
if (keySpaceName == null)
{
sessionState.out.println("Keyspace argument required");
return;
}
try
{
AuthenticationRequest authRequest;
Map<String, String> credentials = new HashMap<String, String>();
keySpaceName = CliCompiler.getKeySpace(keySpaceName, thriftClient.describe_keyspaces());
thriftClient.set_keyspace(keySpaceName);
if (username != null && password != null)
{
/* remove quotes */
password = password.replace("\'", "");
credentials.put(IAuthenticator.USERNAME_KEY, username);
credentials.put(IAuthenticator.PASSWORD_KEY, password);
authRequest = new AuthenticationRequest(credentials);
thriftClient.login(authRequest);
}
keySpace = keySpaceName;
this.username = username != null ? username : "default";
keyspacesMap.remove(keySpace);
CliMain.updateCompletor(CliUtils.getCfNamesByKeySpace(getKSMetaData(keySpace)));
sessionState.out.println("Authenticated to keyspace: " + keySpace);
}
catch (AuthenticationException e)
{
sessionState.err.println("Exception during authentication to the cassandra node: " +
"verify keyspace exists, and you are using correct credentials.");
}
catch (AuthorizationException e)
{
sessionState.err.println("You are not authorized to use keyspace: " + keySpaceName);
}
catch (InvalidRequestException e)
{
sessionState.err.println(keySpaceName + " does not exist.");
}
catch (NotFoundException e)
{
sessionState.err.println(keySpaceName + " does not exist.");
}
catch (TException e)
{
if (sessionState.debug)
e.printStackTrace(sessionState.err);
sessionState.err.println("Login failure. Did you specify 'keyspace', 'username' and 'password'?");
}
}
private void executeTraceNextQuery() throws TException, CharacterCodingException
{
if (!CliMain.isConnected())
return;
UUID sessionId = TimeUUIDType.instance.compose(thriftClient.trace_next_query());
sessionState.out.println("Will trace next query. Session ID: " + sessionId.toString());
}
private void describeKeySpace(String keySpaceName, KsDef metadata) throws TException
{
NodeProbe probe = sessionState.getNodeProbe();
// getting compaction manager MBean to displaying index building information
CompactionManagerMBean compactionManagerMBean = (probe == null) ? null : probe.getCompactionManagerProxy();
// Describe and display
sessionState.out.println("Keyspace: " + keySpaceName + ":");
try
{
KsDef ks_def;
ks_def = metadata == null ? thriftClient.describe_keyspace(keySpaceName) : metadata;
sessionState.out.println(" Replication Strategy: " + ks_def.strategy_class);
sessionState.out.println(" Durable Writes: " + ks_def.durable_writes);
Map<String, String> options = ks_def.strategy_options;
sessionState.out.println(" Options: [" + ((options == null) ? "" : FBUtilities.toString(options)) + "]");
sessionState.out.println(" Column Families:");
Collections.sort(ks_def.cf_defs, new CfDefNamesComparator());
for (CfDef cf_def : ks_def.cf_defs)
describeColumnFamily(ks_def, cf_def, probe);
// compaction manager information
if (compactionManagerMBean != null)
{
for (Map<String, String> info : compactionManagerMBean.getCompactions())
{
// if ongoing compaction type is index build
if (info.get("taskType").equals(OperationType.INDEX_BUILD.toString()))
continue;
sessionState.out.printf("%nCurrently building index %s, completed %d of %d bytes.%n",
info.get("columnfamily"),
info.get("bytesComplete"),
info.get("totalBytes"));
}
}
// closing JMX connection
if (probe != null)
probe.close();
}
catch (InvalidRequestException e)
{
sessionState.out.println("Invalid request: " + e);
}
catch (NotFoundException e)
{
sessionState.out.println("Keyspace " + keySpaceName + " could not be found.");
}
catch (IOException e)
{
sessionState.out.println("Error while closing JMX connection: " + e.getMessage());
}
}
private void describeColumnFamily(KsDef ks_def, CfDef cf_def, NodeProbe probe) throws TException
{
// fetching bean for current column family store
ColumnFamilyStoreMBean cfMBean = (probe == null) ? null : probe.getCfsProxy(ks_def.getName(), cf_def.getName());
boolean isSuper = cf_def.column_type.equals("Super");
sessionState.out.printf(" ColumnFamily: %s%s%n", cf_def.name, isSuper ? " (Super)" : "");
if (cf_def.comment != null && !cf_def.comment.isEmpty())
sessionState.out.printf(" \"%s\"%n", cf_def.comment);
if (cf_def.key_validation_class != null)
sessionState.out.printf(" Key Validation Class: %s%n", cf_def.key_validation_class);
if (cf_def.default_validation_class != null)
sessionState.out.printf(" Default column value validator: %s%n", cf_def.default_validation_class);
sessionState.out.printf(" Columns sorted by: %s%s%n", cf_def.comparator_type, cf_def.column_type.equals("Super") ? "/" + cf_def.subcomparator_type : "");
sessionState.out.printf(" GC grace seconds: %s%n", cf_def.gc_grace_seconds);
sessionState.out.printf(" Compaction min/max thresholds: %s/%s%n", cf_def.min_compaction_threshold, cf_def.max_compaction_threshold);
sessionState.out.printf(" Read repair chance: %s%n", cf_def.read_repair_chance);
sessionState.out.printf(" DC Local Read repair chance: %s%n", cf_def.dclocal_read_repair_chance);
sessionState.out.printf(" Populate IO Cache on flush: %b%n", cf_def.populate_io_cache_on_flush);
sessionState.out.printf(" Replicate on write: %s%n", cf_def.replicate_on_write);
sessionState.out.printf(" Caching: %s%n", cf_def.caching);
sessionState.out.printf(" Bloom Filter FP chance: %s%n", cf_def.isSetBloom_filter_fp_chance() ? cf_def.bloom_filter_fp_chance : "default");
// if we have connection to the cfMBean established
if (cfMBean != null)
sessionState.out.printf(" Built indexes: %s%n", cfMBean.getBuiltIndexes());
if (cf_def.getColumn_metadataSize() != 0)
{
String leftSpace = " ";
String columnLeftSpace = leftSpace + " ";
String compareWith = isSuper ? cf_def.subcomparator_type
: cf_def.comparator_type;
AbstractType<?> columnNameValidator = getFormatType(compareWith);
sessionState.out.println(leftSpace + "Column Metadata:");
for (ColumnDef columnDef : cf_def.getColumn_metadata())
{
String columnName = columnNameValidator.getString(columnDef.name);
if (columnNameValidator instanceof BytesType)
{
try
{
String columnString = UTF8Type.instance.getString(columnDef.name);
columnName = columnString + " (" + columnName + ")";
}
catch (MarshalException e)
{
// guess it wasn't a utf8 column name after all
}
}
sessionState.out.println(leftSpace + " Column Name: " + columnName);
sessionState.out.println(columnLeftSpace + "Validation Class: " + columnDef.getValidation_class());
if (columnDef.isSetIndex_name())
sessionState.out.println(columnLeftSpace + "Index Name: " + columnDef.getIndex_name());
if (columnDef.isSetIndex_type())
sessionState.out.println(columnLeftSpace + "Index Type: " + columnDef.getIndex_type().name());
if (columnDef.isSetIndex_options())
sessionState.out.println(columnLeftSpace + "Index Options: " + columnDef.getIndex_options());
}
}
sessionState.out.printf(" Compaction Strategy: %s%n", cf_def.compaction_strategy);
if (cf_def.compaction_strategy_options != null && !cf_def.compaction_strategy_options.isEmpty())
{
sessionState.out.println(" Compaction Strategy Options:");
for (Map.Entry<String, String> e : cf_def.compaction_strategy_options.entrySet())
sessionState.out.printf(" %s: %s%n", e.getKey(), e.getValue());
}
if (cf_def.compression_options != null && !cf_def.compression_options.isEmpty())
{
sessionState.out.println(" Compression Options:");
for (Map.Entry<String, String> e : cf_def.compression_options.entrySet())
sessionState.out.printf(" %s: %s%n", e.getKey(), e.getValue());
}
}
// DESCRIBE KEYSPACE (<keyspace> | <column_family>)?
private void executeDescribe(Tree statement) throws TException, InvalidRequestException, NotFoundException
{
if (!CliMain.isConnected())
return;
printCQL3TablesWarning("describe");
int argCount = statement.getChildCount();
if (keySpace == null && argCount == 0)
{
sessionState.out.println("Authenticate to a Keyspace, before using `describe` or `describe <column_family>`");
return;
}
KsDef currentKeySpace = null;
if (keySpace != null)
{
keyspacesMap.remove(keySpace);
currentKeySpace = getKSMetaData(keySpace);
}
if (argCount > 1) // in case somebody changes Cli grammar
throw new RuntimeException("`describe` command take maximum one argument. See `help describe;`");
if (argCount == 0)
{
if (currentKeySpace != null)
{
describeKeySpace(currentKeySpace.name, null);
return;
}
sessionState.out.println("Authenticate to a Keyspace, before using `describe` or `describe <column_family>`");
}
else if (argCount == 1)
{
// name of the keyspace or ColumnFamily
String entityName = statement.getChild(0).getText();
KsDef inputKsDef = CliUtils.getKeySpaceDef(entityName, thriftClient.describe_keyspaces());
if (inputKsDef == null && currentKeySpace == null)
throw new RuntimeException(String.format("Keyspace with name '%s' wasn't found, " +
"to lookup ColumnFamily with that name, please, authorize to one " +
"of the keyspaces first.", entityName));
CfDef inputCfDef = (inputKsDef == null)
? getCfDef(currentKeySpace, entityName)
: null; // no need to lookup CfDef if we know that it was keyspace
if (inputKsDef != null)
{
describeKeySpace(inputKsDef.name, inputKsDef);
}
else if (inputCfDef != null)
{
NodeProbe probe = sessionState.getNodeProbe();
try
{
describeColumnFamily(currentKeySpace, inputCfDef, probe);
if (probe != null)
probe.close();
}
catch (IOException e)
{
sessionState.out.println("Error while closing JMX connection: " + e.getMessage());
}
}
else
{
sessionState.out.println("Sorry, no Keyspace nor ColumnFamily was found with name: " + entityName);
}
}
}
// ^(NODE_DESCRIBE_CLUSTER) or describe: schema_versions, partitioner, snitch
private void executeDescribeCluster()
{
if (!CliMain.isConnected())
return;
sessionState.out.println("Cluster Information:");
try
{
sessionState.out.println(" Snitch: " + thriftClient.describe_snitch());
sessionState.out.println(" Partitioner: " + thriftClient.describe_partitioner());
sessionState.out.println(" Schema versions: ");
Map<String,List<String>> versions = thriftClient.describe_schema_versions();
for (String version : versions.keySet())
{
sessionState.out.println(String.format("\t%s: %s%n", version, versions.get(version)));
}
}
catch (Exception e)
{
String message = (e instanceof InvalidRequestException) ? ((InvalidRequestException) e).getWhy() : e.getMessage();
sessionState.err.println("Error retrieving data: " + message);
}
}
// process a statement of the form: connect hostname/port
private void executeConnect(Tree statement)
{
Tree idList = statement.getChild(0);
int portNumber = Integer.parseInt(statement.getChild(1).getText());
StringBuilder hostName = new StringBuilder();
int idCount = idList.getChildCount();
for (int idx = 0; idx < idCount; idx++)
{
hostName.append(idList.getChild(idx).getText());
}
// disconnect current connection, if any.
// This is a no-op, if you aren't currently connected.
CliMain.disconnect();
// now, connect to the newly specified host name and port
sessionState.hostName = hostName.toString();
sessionState.thriftPort = portNumber;
// if we have user name and password
if (statement.getChildCount() == 4)
{
sessionState.username = statement.getChild(2).getText();
sessionState.password = CliUtils.unescapeSQLString(statement.getChild(3).getText());
}
CliMain.connect(sessionState.hostName, sessionState.thriftPort);
}
/**
* To get Column Family Definition object from specified keyspace
* @param keySpaceName key space name to search for specific column family
* @param columnFamilyName column family name
* @return CfDef - Column family definition object
*/
private CfDef getCfDef(String keySpaceName, String columnFamilyName)
{
KsDef ksDef = keyspacesMap.get(keySpaceName);
CfDef cfDef = getCfDef(ksDef, columnFamilyName);
if (cfDef == null)
throw new RuntimeException("No such column family: " + columnFamilyName);
return cfDef;
}
/**
* Uses getCfDef(keySpaceName, columnFamilyName) with current keyspace
* @param columnFamilyName column family name to find in specified keyspace
* @return CfDef - Column family definition object
*/
private CfDef getCfDef(String columnFamilyName)
{
return getCfDef(this.keySpace, columnFamilyName);
}
private CfDef getCfDef(KsDef keyspace, String columnFamilyName)
{
for (CfDef cfDef : keyspace.cf_defs)
{
if (cfDef.name.equals(columnFamilyName))
return cfDef;
}
return cql3KeyspacesMap.get(keyspace.name).get(columnFamilyName);
}
/**
* Used to parse meta tree and compile meta attributes into List<ColumnDef>
* @param cfDef - column family definition
* @param meta (Tree representing Array of the hashes with metadata attributes)
* @return List<ColumnDef> List of the ColumnDef's
*
* meta is in following format - ^(ARRAY ^(HASH ^(PAIR .. ..) ^(PAIR .. ..)) ^(HASH ...))
*/
private List<ColumnDef> getCFColumnMetaFromTree(CfDef cfDef, Tree meta)
{
// this list will be returned
List<ColumnDef> columnDefinitions = new ArrayList<ColumnDef>();
// each child node is a ^(HASH ...)
for (int i = 0; i < meta.getChildCount(); i++)
{
Tree metaHash = meta.getChild(i);
ColumnDef columnDefinition = new ColumnDef();
// each child node is ^(PAIR $key $value)
for (int j = 0; j < metaHash.getChildCount(); j++)
{
Tree metaPair = metaHash.getChild(j);
// current $key
String metaKey = CliUtils.unescapeSQLString(metaPair.getChild(0).getText());
// current $value
String metaVal = CliUtils.unescapeSQLString(metaPair.getChild(1).getText());
if (metaKey.equals("column_name"))
{
if (cfDef.column_type.equals("Super"))
columnDefinition.setName(subColumnNameAsByteArray(metaVal, cfDef));
else
columnDefinition.setName(columnNameAsByteArray(metaVal, cfDef));
}
else if (metaKey.equals("validation_class"))
{
columnDefinition.setValidation_class(metaVal);
}
else if (metaKey.equals("index_type"))
{
columnDefinition.setIndex_type(getIndexTypeFromString(metaVal));
}
else if (metaKey.equals("index_options"))
{
columnDefinition.setIndex_options(getStrategyOptionsFromTree(metaPair.getChild(1)));
}
else if (metaKey.equals("index_name"))
{
columnDefinition.setIndex_name(metaVal);
}
else
{
throw new RuntimeException("Unsupported column_metadata pair given => " + metaKey + ": " + metaVal);
}
}
// validating columnDef structure, 'name' and 'validation_class' must be set
try
{
columnDefinition.validate();
}
catch (TException e)
{
throw new RuntimeException(e);
}
columnDefinitions.add(columnDefinition);
}
return columnDefinitions;
}
/**
* Getting IndexType object from indexType string
* @param indexTypeAsString - string return by parser corresponding to IndexType
* @return IndexType - an IndexType object
*/
private IndexType getIndexTypeFromString(String indexTypeAsString)
{
IndexType indexType;
try
{
indexType = IndexType.findByValue(new Integer(indexTypeAsString));
}
catch (NumberFormatException e)
{
try
{
// if this is not an integer lets try to get IndexType by name
indexType = IndexType.valueOf(indexTypeAsString);
}
catch (IllegalArgumentException ie)
{
throw new RuntimeException("IndexType '" + indexTypeAsString + "' is unsupported.", ie);
}
}
if (indexType == null)
{
throw new RuntimeException("IndexType '" + indexTypeAsString + "' is unsupported.");
}
return indexType;
}
/**
* Converts object represented as string into byte[] according to comparator
* @param object - object to covert into byte array
* @param comparator - comparator used to convert object
* @return byte[] - object in the byte array representation
*/
private ByteBuffer getBytesAccordingToType(String object, AbstractType<?> comparator)
{
if (comparator == null) // default comparator is BytesType
comparator = BytesType.instance;
try
{
return comparator.fromString(object);
}
catch (MarshalException e)
{
throw new RuntimeException(e);
}
}
/**
* Converts column name into byte[] according to comparator type
* @param column - column name from parser
* @param columnFamily - column family name from parser
* @return ByteBuffer - bytes into which column name was converted according to comparator type
*/
private ByteBuffer columnNameAsBytes(String column, String columnFamily)
{
CfDef columnFamilyDef = getCfDef(columnFamily);
return columnNameAsBytes(column, columnFamilyDef);
}
/**
* Converts column name into byte[] according to comparator type
* @param column - column name from parser
* @param columnFamilyDef - column family from parser
* @return ByteBuffer bytes - into which column name was converted according to comparator type
*/
private ByteBuffer columnNameAsBytes(String column, CfDef columnFamilyDef)
{
String comparatorClass = columnFamilyDef.comparator_type;
return getBytesAccordingToType(column, getFormatType(comparatorClass));
}
/**
* Converts column name into byte[] according to comparator type
* @param column - column name from parser
* @param columnFamily - column family name from parser
* @return bytes[] - into which column name was converted according to comparator type
*/
private byte[] columnNameAsByteArray(String column, String columnFamily)
{
return TBaseHelper.byteBufferToByteArray(columnNameAsBytes(column, columnFamily));
}
/**
* Converts column name into byte[] according to comparator type
* @param column - column name from parser
* @param cfDef - column family from parser
* @return bytes[] - into which column name was converted according to comparator type
*/
private byte[] columnNameAsByteArray(String column, CfDef cfDef)
{
return TBaseHelper.byteBufferToByteArray(columnNameAsBytes(column, cfDef));
}
/**
* Converts sub-column name into ByteBuffer according to comparator type
* @param superColumn - sub-column name from parser
* @param columnFamily - column family name from parser
* @return ByteBuffer bytes - into which column name was converted according to comparator type
*/
private ByteBuffer subColumnNameAsBytes(String superColumn, String columnFamily)
{
CfDef columnFamilyDef = getCfDef(columnFamily);
return subColumnNameAsBytes(superColumn, columnFamilyDef);
}
/**
* Converts column name into ByteBuffer according to comparator type
* @param superColumn - sub-column name from parser
* @param columnFamilyDef - column family from parser
* @return ByteBuffer bytes - into which column name was converted according to comparator type
*/
private ByteBuffer subColumnNameAsBytes(String superColumn, CfDef columnFamilyDef)
{
String comparatorClass = columnFamilyDef.subcomparator_type;
if (comparatorClass == null)
{
sessionState.out.println(String.format("Notice: defaulting to BytesType subcomparator for '%s'", columnFamilyDef.getName()));
comparatorClass = "BytesType";
}
return getBytesAccordingToType(superColumn, getFormatType(comparatorClass));
}
/**
* Converts sub-column name into byte[] according to comparator type
* @param superColumn - sub-column name from parser
* @param cfDef - column family from parser
* @return bytes[] - into which column name was converted according to comparator type
*/
private byte[] subColumnNameAsByteArray(String superColumn, CfDef cfDef)
{
return TBaseHelper.byteBufferToByteArray(subColumnNameAsBytes(superColumn, cfDef));
}
/**
* Converts column value into byte[] according to validation class
* @param columnName - column name to which value belongs
* @param columnFamilyName - column family name
* @param columnValue - actual column value
* @return value in byte array representation
*/
private ByteBuffer columnValueAsBytes(ByteBuffer columnName, String columnFamilyName, String columnValue)
{
CfDef columnFamilyDef = getCfDef(columnFamilyName);
AbstractType<?> defaultValidator = getFormatType(columnFamilyDef.default_validation_class);
for (ColumnDef columnDefinition : columnFamilyDef.getColumn_metadata())
{
byte[] currentColumnName = columnDefinition.getName();
if (ByteBufferUtil.compare(currentColumnName, columnName) == 0)
{
try
{
String validationClass = columnDefinition.getValidation_class();
return getBytesAccordingToType(columnValue, getFormatType(validationClass));
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
}
return defaultValidator.fromString(columnValue);
}
/**
* Get validator for specific column value
* @param cfDef - CfDef object representing column family with metadata
* @param columnNameInBytes - column name as byte array
* @return AbstractType - validator for column value
*/
private AbstractType<?> getValidatorForValue(CfDef cfDef, byte[] columnNameInBytes)
{
String defaultValidator = cfDef.default_validation_class;
for (ColumnDef columnDefinition : cfDef.getColumn_metadata())
{
byte[] nameInBytes = columnDefinition.getName();
if (Arrays.equals(nameInBytes, columnNameInBytes))
{
return getFormatType(columnDefinition.getValidation_class());
}
}
if (defaultValidator != null && !defaultValidator.isEmpty())
{
return getFormatType(defaultValidator);
}
return null;
}
/**
* Used to get Map of the provided options by create/update keyspace commands
* @param options - tree representing options
* @return Map - strategy_options map
*/
private Map<String, String> getStrategyOptionsFromTree(Tree options)
{
//Check for old [{}] syntax
if (options.getText().equalsIgnoreCase("ARRAY"))
{
System.err.println("WARNING: [{}] strategy_options syntax is deprecated, please use {}");
if (options.getChildCount() == 0)
return Collections.EMPTY_MAP;
return getStrategyOptionsFromTree(options.getChild(0));
}
// this map will be returned
Map<String, String> strategyOptions = new HashMap<String, String>();
// each child node is ^(PAIR $key $value)
for (int j = 0; j < options.getChildCount(); j++)
{
Tree optionPair = options.getChild(j);
// current $key
String key = CliUtils.unescapeSQLString(optionPair.getChild(0).getText());
// current $value
String val = CliUtils.unescapeSQLString(optionPair.getChild(1).getText());
strategyOptions.put(key, val);
}
return strategyOptions;
}
/**
* Used to convert value (function argument, string) into byte[]
* calls convertValueByFunction method with "withUpdate" set to false
* @param functionCall - tree representing function call ^(FUNCTION_CALL function_name value)
* @param columnFamily - column family definition (CfDef)
* @param columnName - also updates column family metadata for given column
* @return byte[] - string value as byte[]
*/
private ByteBuffer convertValueByFunction(Tree functionCall, CfDef columnFamily, ByteBuffer columnName)
{
return convertValueByFunction(functionCall, columnFamily, columnName, false);
}
/**
* Used to convert value (function argument, string) into byte[]
* @param functionCall - tree representing function call ^(FUNCTION_CALL function_name value)
* @param columnFamily - column family definition (CfDef)
* @param columnName - column name as byte[] (used to update CfDef)
* @param withUpdate - also updates column family metadata for given column
* @return byte[] - string value as byte[]
*/
private ByteBuffer convertValueByFunction(Tree functionCall, CfDef columnFamily, ByteBuffer columnName, boolean withUpdate)
{
String functionName = functionCall.getChild(0).getText();
Tree argumentTree = functionCall.getChild(1);
String functionArg = (argumentTree == null) ? "" : CliUtils.unescapeSQLString(argumentTree.getText());
AbstractType<?> validator = getTypeByFunction(functionName);
try
{
ByteBuffer value;
if (functionArg.isEmpty())
{
if (validator instanceof TimeUUIDType)
{
value = ByteBuffer.wrap(UUIDGen.getTimeUUIDBytes());
}
else if (validator instanceof LexicalUUIDType)
{
value = ByteBuffer.wrap(UUIDGen.decompose(UUID.randomUUID()));
}
else if (validator instanceof BytesType)
{
value = ByteBuffer.wrap(new byte[0]);
}
else
{
throw new RuntimeException(String.format("Argument for '%s' could not be empty.", functionName));
}
}
else
{
value = getBytesAccordingToType(functionArg, validator);
}
// performing ColumnDef local validator update
if (withUpdate)
{
updateColumnMetaData(columnFamily, columnName, validator.toString());
}
return value;
}
catch (Exception e)
{
throw new RuntimeException(e);
}
}
/**
* Get AbstractType by function name
* @param functionName - name of the function e.g. utf8, integer, long etc.
* @return AbstractType type corresponding to the function name
*/
public static AbstractType<?> getTypeByFunction(String functionName)
{
Function function;
try
{
function = Function.valueOf(functionName.toUpperCase());
}
catch (IllegalArgumentException e)
{
StringBuilder errorMessage = new StringBuilder("Function '" + functionName + "' not found. ");
errorMessage.append("Available functions: ");
throw new RuntimeException(errorMessage.append(Function.getFunctionNames()).toString(), e);
}
return function.getValidator();
}
/**
* Used to locally update column family definition with new column metadata
* @param columnFamily - CfDef record
* @param columnName - column name represented as byte[]
* @param validationClass - value validation class
*/
private void updateColumnMetaData(CfDef columnFamily, ByteBuffer columnName, String validationClass)
{
ColumnDef column = getColumnDefByName(columnFamily, columnName);
if (column != null)
{
// if validation class is the same - no need to modify it
if (column.getValidation_class().equals(validationClass))
return;
// updating column definition with new validation_class
column.setValidation_class(validationClass);
}
else
{
List<ColumnDef> columnMetaData = new ArrayList<ColumnDef>(columnFamily.getColumn_metadata());
columnMetaData.add(new ColumnDef(columnName, validationClass));
columnFamily.setColumn_metadata(columnMetaData);
}
}
/**
* Get specific ColumnDef in column family meta data by column name
* @param columnFamily - CfDef record
* @param columnName - column name represented as byte[]
* @return ColumnDef - found column definition
*/
private ColumnDef getColumnDefByName(CfDef columnFamily, ByteBuffer columnName)
{
for (ColumnDef columnDef : columnFamily.getColumn_metadata())
{
byte[] currName = columnDef.getName();
if (ByteBufferUtil.compare(currName, columnName) == 0)
{
return columnDef;
}
}
return null;
}
/**
* Prints out KeySlice list
* @param columnFamilyDef - column family definition
* @param slices - list of the KeySlice's to print out
* @throws NotFoundException - column not found
* @throws TException - transfer is broken
* @throws IllegalAccessException - can't do operation
* @throws InstantiationException - can't instantiate a class
* @throws NoSuchFieldException - column not found
*/
private void printSliceList(CfDef columnFamilyDef, List<KeySlice> slices)
throws NotFoundException, TException, IllegalAccessException, InstantiationException, NoSuchFieldException, CharacterCodingException
{
AbstractType<?> validator;
String columnFamilyName = columnFamilyDef.getName();
AbstractType<?> keyComparator = getKeyComparatorForCF(columnFamilyName);
for (KeySlice ks : slices)
{
String keyName = (keyComparator == null) ? ByteBufferUtil.string(ks.key) : keyComparator.getString(ks.key);
sessionState.out.printf("-------------------%n");
sessionState.out.printf("RowKey: %s%n", keyName);
Iterator<ColumnOrSuperColumn> iterator = ks.getColumnsIterator();
while (iterator.hasNext())
{
ColumnOrSuperColumn columnOrSuperColumn = iterator.next();
if (columnOrSuperColumn.column != null)
{
Column col = columnOrSuperColumn.column;
validator = getValidatorForValue(columnFamilyDef, col.getName());
sessionState.out.printf("=> (column=%s, value=%s, timestamp=%d%s)%n",
formatColumnName(keySpace, columnFamilyName, col.name), validator.getString(col.value), col.timestamp,
col.isSetTtl() ? String.format(", ttl=%d", col.getTtl()) : "");
}
else if (columnOrSuperColumn.super_column != null)
{
SuperColumn superCol = columnOrSuperColumn.super_column;
sessionState.out.printf("=> (super_column=%s,", formatColumnName(keySpace, columnFamilyName, superCol.name));
for (Column col : superCol.columns)
{
validator = getValidatorForValue(columnFamilyDef, col.getName());
sessionState.out.printf("%n (column=%s, value=%s, timestamp=%d%s)",
formatSubcolumnName(keySpace, columnFamilyName, col.name), validator.getString(col.value), col.timestamp,
col.isSetTtl() ? String.format(", ttl=%d", col.getTtl()) : "");
}
sessionState.out.println(")");
}
else if (columnOrSuperColumn.counter_column != null)
{
CounterColumn col = columnOrSuperColumn.counter_column;
sessionState.out.printf("=> (counter=%s, value=%s)%n", formatColumnName(keySpace, columnFamilyName, col.name), col.value);
}
else if (columnOrSuperColumn.counter_super_column != null)
{
CounterSuperColumn superCol = columnOrSuperColumn.counter_super_column;
sessionState.out.printf("=> (super_column=%s,", formatColumnName(keySpace, columnFamilyName, superCol.name));
for (CounterColumn col : superCol.columns)
{
sessionState.out.printf("%n (counter=%s, value=%s)", formatSubcolumnName(keySpace, columnFamilyName, col.name), col.value);
}
sessionState.out.println(")");
}
}
}
sessionState.out.printf("%n%d Row%s Returned.%n", slices.size(), (slices.size() > 1 ? "s" : ""));
}
// retuns sub-column name in human-readable format
private String formatSubcolumnName(String keyspace, String columnFamily, ByteBuffer name)
throws NotFoundException, TException, IllegalAccessException, InstantiationException, NoSuchFieldException
{
return getFormatType(getCfDef(keyspace, columnFamily).subcomparator_type).getString(name);
}
// retuns column name in human-readable format
private String formatColumnName(String keyspace, String columnFamily, ByteBuffer name)
throws NotFoundException, TException, IllegalAccessException, InstantiationException, NoSuchFieldException
{
return getFormatType(getCfDef(keyspace, columnFamily).comparator_type).getString(name);
}
private ByteBuffer getColumnName(String columnFamily, Tree columnTree)
{
return (columnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(columnTree, null, null)
: columnNameAsBytes(CliUtils.unescapeSQLString(columnTree.getText()), columnFamily);
}
private ByteBuffer getSubColumnName(String columnFamily, Tree columnTree)
{
return (columnTree.getType() == CliParser.FUNCTION_CALL)
? convertValueByFunction(columnTree, null, null)
: subColumnNameAsBytes(CliUtils.unescapeSQLString(columnTree.getText()), columnFamily);
}
public ByteBuffer getKeyAsBytes(String columnFamily, Tree keyTree)
{
if (keyTree.getType() == CliParser.FUNCTION_CALL)
return convertValueByFunction(keyTree, null, null);
String key = CliUtils.unescapeSQLString(keyTree.getText());
return getBytesAccordingToType(key, getKeyComparatorForCF(columnFamily));
}
private AbstractType<?> getKeyComparatorForCF(String columnFamily)
{
AbstractType<?> keyComparator = cfKeysComparators.get(columnFamily);
if (keyComparator == null)
{
String defaultValidationClass = getCfDef(columnFamily).getKey_validation_class();
assert defaultValidationClass != null;
keyComparator = getFormatType(defaultValidationClass);
}
return keyComparator;
}
private static class KsDefNamesComparator implements Comparator<KsDef>
{
public int compare(KsDef a, KsDef b)
{
return a.name.compareTo(b.name);
}
}
private static class CfDefNamesComparator implements Comparator<CfDef>
{
public int compare(CfDef a, CfDef b)
{
return a.name.compareTo(b.name);
}
}
private boolean isCounterCF(CfDef cfdef)
{
String defaultValidator = cfdef.default_validation_class;
return defaultValidator != null
&& !defaultValidator.isEmpty()
&& getFormatType(defaultValidator) instanceof CounterColumnType;
}
/**
* Print elapsed time. Print 2 fraction digits if eta is under 10 ms.
* @param startTime starting time in nanoseconds
*/
private void elapsedTime(long startTime)
{
/** time elapsed in nanoseconds */
long eta = System.nanoTime() - startTime;
sessionState.out.print("Elapsed time: ");
if (eta < 10000000)
{
sessionState.out.print(Math.round(eta/10000.0)/100.0);
}
else
{
sessionState.out.print(Math.round(eta/1000000.0));
}
sessionState.out.println(" msec(s).");
}
class CfAssumptions
{
//Map<KeySpace, Map<ColumnFamily, Map<Property, Value>>>
private Map<String, Map<String, Map<String, String>>> assumptions;
private boolean assumptionsChanged;
private File assumptionDirectory;
public CfAssumptions()
{
assumptions = new HashMap<String, Map<String, Map<String, String>>>();
assumptionsChanged = false;
assumptionDirectory = new File(System.getProperty("user.home"), ".cassandra-cli");
assumptionDirectory.mkdirs();
}
public void addAssumption(String keyspace, String columnFamily, String property, String value)
{
Map<String, Map<String, String>> ksAssumes = assumptions.get(keyspace);
if (ksAssumes == null)
{
ksAssumes = new HashMap<String, Map<String, String>>();
assumptions.put(keyspace, ksAssumes);
}
Map<String, String> cfAssumes = ksAssumes.get(columnFamily);
if (cfAssumes == null)
{
cfAssumes = new HashMap<String, String>();
ksAssumes.put(columnFamily, cfAssumes);
}
cfAssumes.put(property, value);
assumptionsChanged = true;
}
public void replayAssumptions(String keyspace)
{
if (!CliMain.isConnected() || !hasKeySpace(false))
return;
Map<String, Map<String, String>> cfAssumes = assumptions.get(keyspace);
if (cfAssumes != null)
{
for (Map.Entry<String, Map<String, String>> cfEntry : cfAssumes.entrySet())
{
String columnFamily = cfEntry.getKey();
Map<String, String> props = cfEntry.getValue();
for (Map.Entry<String, String> propEntry : props.entrySet())
{
applyAssumption(columnFamily, propEntry.getKey(), propEntry.getValue());
}
}
}
}
private void readAssumptions()
{
File assumptionFile = new File(assumptionDirectory, "assumptions.json");
if (assumptionFile.isFile())
{
try
{
JsonFactory f = new JsonFactory();
JsonParser p = f.createJsonParser(assumptionFile);
JsonToken token = p.nextToken();
while (token != JsonToken.END_OBJECT)
{
if (token == JsonToken.FIELD_NAME)
{
String keyspace = p.getText();
Map<String, Map<String, String>> ksAssumes = assumptions.get(keyspace);
if (ksAssumes == null)
{
ksAssumes = new HashMap<String, Map<String, String>>();
assumptions.put(keyspace, ksAssumes);
}
token = p.nextToken();
while (token != JsonToken.END_ARRAY)
{
if (token == JsonToken.FIELD_NAME)
{
String columnFamily = p.getText();
Map<String, String> cfAssumes = ksAssumes.get(columnFamily);
if (cfAssumes == null)
{
cfAssumes = new HashMap<String, String>();
ksAssumes.put(columnFamily, cfAssumes);
}
token = p.nextToken();
while (token != JsonToken.END_ARRAY)
{
if (token == JsonToken.FIELD_NAME)
{
String prop = p.getText();
p.nextToken();
String value = p.getText();
cfAssumes.put(prop, value);
}
token = p.nextToken();
}
}
token = p.nextToken();
}
}
token = p.nextToken();
}
sessionState.out.println("Column Family assumptions read from " + assumptionFile);
}
catch (Exception e)
{
sessionState.err.println("Failed reading " + assumptionFile + " file");
}
}
}
private void writeAssumptions()
{
if (assumptionsChanged)
{
File assumptionFile = new File(assumptionDirectory, "assumptions.json");
try
{
JsonFactory f = new JsonFactory();
JsonGenerator g = f.createJsonGenerator(assumptionFile, JsonEncoding.UTF8);
g.useDefaultPrettyPrinter();
g.writeStartObject();
for (Map.Entry<String, Map<String, Map<String, String>>> ksEntry : assumptions.entrySet())
{
g.writeFieldName(ksEntry.getKey());
g.writeStartArray();
for (Map.Entry<String, Map<String, String>> cfEntry : ksEntry.getValue().entrySet())
{
g.writeStartObject();
g.writeFieldName(cfEntry.getKey());
g.writeStartArray();
for (Map.Entry<String, String> asEntry : cfEntry.getValue().entrySet())
{
g.writeStartObject();
g.writeStringField(asEntry.getKey(), asEntry.getValue());
g.writeEndObject();
}
g.writeEndArray();
g.writeEndObject();
}
g.writeEndArray();
}
g.writeEndObject();
g.close();
sessionState.out.println("Column Family assumptions written to " + assumptionFile);
assumptionsChanged = false;
}
catch (Exception e)
{
sessionState.err.println("Failed writing " + assumptionFile + " file");
}
}
}
}
}