/*
* 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.thrift;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.StandardCharsets;
import java.util.*;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeoutException;
import java.util.zip.DataFormatException;
import java.util.zip.Inflater;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.primitives.Longs;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.cassandra.auth.AuthenticatedUser;
import org.apache.cassandra.auth.Permission;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.config.KSMetaData;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.cql.CQLStatement;
import org.apache.cassandra.cql.QueryProcessor;
import org.apache.cassandra.cql3.QueryOptions;
import org.apache.cassandra.db.*;
import org.apache.cassandra.db.composites.*;
import org.apache.cassandra.db.context.CounterContext;
import org.apache.cassandra.db.filter.ColumnSlice;
import org.apache.cassandra.db.filter.IDiskAtomFilter;
import org.apache.cassandra.db.filter.NamesQueryFilter;
import org.apache.cassandra.db.filter.SliceQueryFilter;
import org.apache.cassandra.db.marshal.TimeUUIDType;
import org.apache.cassandra.dht.*;
import org.apache.cassandra.exceptions.*;
import org.apache.cassandra.io.util.DataOutputBuffer;
import org.apache.cassandra.locator.DynamicEndpointSnitch;
import org.apache.cassandra.metrics.ClientMetrics;
import org.apache.cassandra.scheduler.IRequestScheduler;
import org.apache.cassandra.serializers.MarshalException;
import org.apache.cassandra.service.CASConditions;
import org.apache.cassandra.service.ClientState;
import org.apache.cassandra.service.MigrationManager;
import org.apache.cassandra.service.StorageProxy;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.service.pager.QueryPagers;
import org.apache.cassandra.tracing.Tracing;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.Pair;
import org.apache.cassandra.utils.SemanticVersion;
import org.apache.cassandra.utils.UUIDGen;
import org.apache.thrift.TException;
public class CassandraServer implements Cassandra.Iface
{
private static final Logger logger = LoggerFactory.getLogger(CassandraServer.class);
private final static int COUNT_PAGE_SIZE = 1024;
private final static List<ColumnOrSuperColumn> EMPTY_COLUMNS = Collections.emptyList();
private volatile boolean loggedCQL2Warning = false;
/*
* RequestScheduler to perform the scheduling of incoming requests
*/
private final IRequestScheduler requestScheduler;
public CassandraServer()
{
requestScheduler = DatabaseDescriptor.getRequestScheduler();
registerMetrics();
}
public ThriftClientState state()
{
return ThriftSessionManager.instance.currentSession();
}
protected Map<DecoratedKey, ColumnFamily> readColumnFamily(List<ReadCommand> commands, org.apache.cassandra.db.ConsistencyLevel consistency_level)
throws org.apache.cassandra.exceptions.InvalidRequestException, UnavailableException, TimedOutException
{
// TODO - Support multiple column families per row, right now row only contains 1 column family
Map<DecoratedKey, ColumnFamily> columnFamilyKeyMap = new HashMap<DecoratedKey, ColumnFamily>();
List<Row> rows = null;
try
{
schedule(DatabaseDescriptor.getReadRpcTimeout());
try
{
rows = StorageProxy.read(commands, consistency_level);
}
finally
{
release();
}
}
catch (RequestExecutionException e)
{
ThriftConversion.rethrow(e);
}
for (Row row: rows)
{
columnFamilyKeyMap.put(row.key, row.cf);
}
return columnFamilyKeyMap;
}
public List<ColumnOrSuperColumn> thriftifyColumns(Collection<Cell> cells, boolean reverseOrder, long now)
{
ArrayList<ColumnOrSuperColumn> thriftColumns = new ArrayList<ColumnOrSuperColumn>(cells.size());
for (Cell cell : cells)
{
if (!cell.isLive(now))
continue;
thriftColumns.add(thriftifyColumnWithName(cell, cell.name().toByteBuffer()));
}
// we have to do the reversing here, since internally we pass results around in ColumnFamily
// objects, which always sort their cells in the "natural" order
// TODO this is inconvenient for direct users of StorageProxy
if (reverseOrder)
Collections.reverse(thriftColumns);
return thriftColumns;
}
private ColumnOrSuperColumn thriftifyColumnWithName(Cell cell, ByteBuffer newName)
{
if (cell instanceof CounterCell)
return new ColumnOrSuperColumn().setCounter_column(thriftifySubCounter(cell).setName(newName));
else
return new ColumnOrSuperColumn().setColumn(thriftifySubColumn(cell).setName(newName));
}
private Column thriftifySubColumn(Cell cell)
{
assert !(cell instanceof CounterCell);
Column thrift_column = new Column(cell.name().toByteBuffer()).setValue(cell.value()).setTimestamp(cell.timestamp());
if (cell instanceof ExpiringCell)
{
thrift_column.setTtl(((ExpiringCell) cell).getTimeToLive());
}
return thrift_column;
}
private List<Column> thriftifyColumnsAsColumns(Collection<Cell> cells, long now)
{
List<Column> thriftColumns = new ArrayList<Column>(cells.size());
for (Cell cell : cells)
{
if (!cell.isLive(now))
continue;
thriftColumns.add(thriftifySubColumn(cell));
}
return thriftColumns;
}
private CounterColumn thriftifySubCounter(Cell cell)
{
assert cell instanceof CounterCell;
return new CounterColumn(cell.name().toByteBuffer(), CounterContext.instance().total(cell.value()));
}
private List<ColumnOrSuperColumn> thriftifySuperColumns(Collection<Cell> cells,
boolean reverseOrder,
long now,
boolean subcolumnsOnly,
boolean isCounterCF)
{
if (subcolumnsOnly)
{
ArrayList<ColumnOrSuperColumn> thriftSuperColumns = new ArrayList<ColumnOrSuperColumn>(cells.size());
for (Cell cell : cells)
{
if (!cell.isLive(now))
continue;
thriftSuperColumns.add(thriftifyColumnWithName(cell, SuperColumns.subName(cell.name())));
}
if (reverseOrder)
Collections.reverse(thriftSuperColumns);
return thriftSuperColumns;
}
else
{
if (isCounterCF)
return thriftifyCounterSuperColumns(cells, reverseOrder, now);
else
return thriftifySuperColumns(cells, reverseOrder, now);
}
}
private List<ColumnOrSuperColumn> thriftifySuperColumns(Collection<Cell> cells, boolean reverseOrder, long now)
{
ArrayList<ColumnOrSuperColumn> thriftSuperColumns = new ArrayList<ColumnOrSuperColumn>(cells.size());
SuperColumn current = null;
for (Cell cell : cells)
{
if (!cell.isLive(now))
continue;
ByteBuffer scName = SuperColumns.scName(cell.name());
if (current == null || !scName.equals(current.bufferForName()))
{
current = new SuperColumn(scName, new ArrayList<Column>());
thriftSuperColumns.add(new ColumnOrSuperColumn().setSuper_column(current));
}
current.getColumns().add(thriftifySubColumn(cell).setName(SuperColumns.subName(cell.name())));
}
if (reverseOrder)
Collections.reverse(thriftSuperColumns);
return thriftSuperColumns;
}
private List<ColumnOrSuperColumn> thriftifyCounterSuperColumns(Collection<Cell> cells, boolean reverseOrder, long now)
{
ArrayList<ColumnOrSuperColumn> thriftSuperColumns = new ArrayList<ColumnOrSuperColumn>(cells.size());
CounterSuperColumn current = null;
for (Cell cell : cells)
{
if (!cell.isLive(now))
continue;
ByteBuffer scName = SuperColumns.scName(cell.name());
if (current == null || !scName.equals(current.bufferForName()))
{
current = new CounterSuperColumn(scName, new ArrayList<CounterColumn>());
thriftSuperColumns.add(new ColumnOrSuperColumn().setCounter_super_column(current));
}
current.getColumns().add(thriftifySubCounter(cell).setName(SuperColumns.subName(cell.name())));
}
if (reverseOrder)
Collections.reverse(thriftSuperColumns);
return thriftSuperColumns;
}
private Map<ByteBuffer, List<ColumnOrSuperColumn>> getSlice(List<ReadCommand> commands, boolean subColumnsOnly, org.apache.cassandra.db.ConsistencyLevel consistency_level)
throws org.apache.cassandra.exceptions.InvalidRequestException, UnavailableException, TimedOutException
{
Map<DecoratedKey, ColumnFamily> columnFamilies = readColumnFamily(commands, consistency_level);
Map<ByteBuffer, List<ColumnOrSuperColumn>> columnFamiliesMap = new HashMap<ByteBuffer, List<ColumnOrSuperColumn>>();
for (ReadCommand command: commands)
{
ColumnFamily cf = columnFamilies.get(StorageService.getPartitioner().decorateKey(command.key));
boolean reverseOrder = command instanceof SliceFromReadCommand && ((SliceFromReadCommand)command).filter.reversed;
List<ColumnOrSuperColumn> thriftifiedColumns = thriftifyColumnFamily(cf, subColumnsOnly, reverseOrder, command.timestamp);
columnFamiliesMap.put(command.key, thriftifiedColumns);
}
return columnFamiliesMap;
}
private List<ColumnOrSuperColumn> thriftifyColumnFamily(ColumnFamily cf, boolean subcolumnsOnly, boolean reverseOrder, long now)
{
if (cf == null || !cf.hasColumns())
return EMPTY_COLUMNS;
if (cf.metadata().isSuper())
{
boolean isCounterCF = cf.metadata().isCounter();
return thriftifySuperColumns(cf.getSortedColumns(), reverseOrder, now, subcolumnsOnly, isCounterCF);
}
else
{
return thriftifyColumns(cf.getSortedColumns(), reverseOrder, now);
}
}
public List<ColumnOrSuperColumn> get_slice(ByteBuffer key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_parent", column_parent.toString(),
"predicate", predicate.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get_slice", traceParameters);
}
else
{
logger.debug("get_slice");
}
try
{
ClientState cState = state();
String keyspace = cState.getKeyspace();
state().hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
return getSliceInternal(keyspace, key, column_parent, System.currentTimeMillis(), predicate, consistency_level);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private List<ColumnOrSuperColumn> getSliceInternal(String keyspace,
ByteBuffer key,
ColumnParent column_parent,
long timestamp,
SlicePredicate predicate,
ConsistencyLevel consistency_level)
throws org.apache.cassandra.exceptions.InvalidRequestException, UnavailableException, TimedOutException
{
return multigetSliceInternal(keyspace, Collections.singletonList(key), column_parent, timestamp, predicate, consistency_level).get(key);
}
public Map<ByteBuffer, List<ColumnOrSuperColumn>> multiget_slice(List<ByteBuffer> keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
List<String> keysList = Lists.newArrayList();
for (ByteBuffer key : keys)
keysList.add(ByteBufferUtil.bytesToHex(key));
Map<String, String> traceParameters = ImmutableMap.of("keys", keysList.toString(),
"column_parent", column_parent.toString(),
"predicate", predicate.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("multiget_slice", traceParameters);
}
else
{
logger.debug("multiget_slice");
}
try
{
ClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
return multigetSliceInternal(keyspace, keys, column_parent, System.currentTimeMillis(), predicate, consistency_level);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private SliceQueryFilter toInternalFilter(CFMetaData metadata, ColumnParent parent, SliceRange range)
{
if (metadata.isSuper())
{
CellNameType columnType = new SimpleDenseCellNameType(metadata.comparator.subtype(parent.isSetSuper_column() ? 1 : 0));
Composite start = columnType.fromByteBuffer(range.start);
Composite finish = columnType.fromByteBuffer(range.finish);
SliceQueryFilter filter = new SliceQueryFilter(start, finish, range.reversed, range.count);
return SuperColumns.fromSCSliceFilter(metadata.comparator, parent.bufferForSuper_column(), filter);
}
Composite start = metadata.comparator.fromByteBuffer(range.start);
Composite finish = metadata.comparator.fromByteBuffer(range.finish);
return new SliceQueryFilter(start, finish, range.reversed, range.count);
}
private IDiskAtomFilter toInternalFilter(CFMetaData metadata, ColumnParent parent, SlicePredicate predicate)
{
IDiskAtomFilter filter;
if (predicate.column_names != null)
{
if (metadata.isSuper())
{
CellNameType columnType = new SimpleDenseCellNameType(metadata.comparator.subtype(parent.isSetSuper_column() ? 1 : 0));
SortedSet<CellName> s = new TreeSet<CellName>(columnType);
for (ByteBuffer bb : predicate.column_names)
s.add(columnType.cellFromByteBuffer(bb));
filter = SuperColumns.fromSCNamesFilter(metadata.comparator, parent.bufferForSuper_column(), new NamesQueryFilter(s));
}
else
{
SortedSet<CellName> s = new TreeSet<CellName>(metadata.comparator);
for (ByteBuffer bb : predicate.column_names)
s.add(metadata.comparator.cellFromByteBuffer(bb));
filter = new NamesQueryFilter(s);
}
}
else
{
filter = toInternalFilter(metadata, parent, predicate.slice_range);
}
return filter;
}
private Map<ByteBuffer, List<ColumnOrSuperColumn>> multigetSliceInternal(String keyspace,
List<ByteBuffer> keys,
ColumnParent column_parent,
long timestamp,
SlicePredicate predicate,
ConsistencyLevel consistency_level)
throws org.apache.cassandra.exceptions.InvalidRequestException, UnavailableException, TimedOutException
{
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_parent.column_family);
ThriftValidation.validateColumnParent(metadata, column_parent);
ThriftValidation.validatePredicate(metadata, column_parent, predicate);
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForRead(keyspace);
List<ReadCommand> commands = new ArrayList<ReadCommand>(keys.size());
IDiskAtomFilter filter = toInternalFilter(metadata, column_parent, predicate);
for (ByteBuffer key: keys)
{
ThriftValidation.validateKey(metadata, key);
// Note that we should not share a slice filter amongst the command, due to SliceQueryFilter not being immutable
// due to its columnCounter used by the lastCounted() method (also see SelectStatement.getSliceCommands)
commands.add(ReadCommand.create(keyspace, key, column_parent.getColumn_family(), timestamp, filter.cloneShallow()));
}
return getSlice(commands, column_parent.isSetSuper_column(), consistencyLevel);
}
public ColumnOrSuperColumn get(ByteBuffer key, ColumnPath column_path, ConsistencyLevel consistency_level)
throws InvalidRequestException, NotFoundException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_path", column_path.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get", traceParameters);
}
else
{
logger.debug("get");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_path.column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_path.column_family);
ThriftValidation.validateColumnPath(metadata, column_path);
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForRead(keyspace);
ThriftValidation.validateKey(metadata, key);
IDiskAtomFilter filter;
if (metadata.isSuper())
{
CellNameType columnType = new SimpleDenseCellNameType(metadata.comparator.subtype(column_path.column == null ? 0 : 1));
SortedSet<CellName> names = new TreeSet<CellName>(columnType);
names.add(columnType.cellFromByteBuffer(column_path.column == null ? column_path.super_column : column_path.column));
filter = SuperColumns.fromSCNamesFilter(metadata.comparator, column_path.column == null ? null : column_path.bufferForSuper_column(), new NamesQueryFilter(names));
}
else
{
SortedSet<CellName> names = new TreeSet<CellName>(metadata.comparator);
names.add(metadata.comparator.cellFromByteBuffer(column_path.column));
filter = new NamesQueryFilter(names);
}
long now = System.currentTimeMillis();
ReadCommand command = ReadCommand.create(keyspace, key, column_path.column_family, now, filter);
Map<DecoratedKey, ColumnFamily> cfamilies = readColumnFamily(Arrays.asList(command), consistencyLevel);
ColumnFamily cf = cfamilies.get(StorageService.getPartitioner().decorateKey(command.key));
if (cf == null)
throw new NotFoundException();
List<ColumnOrSuperColumn> tcolumns = thriftifyColumnFamily(cf, metadata.isSuper() && column_path.column != null, false, now);
if (tcolumns.isEmpty())
throw new NotFoundException();
assert tcolumns.size() == 1;
return tcolumns.get(0);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public int get_count(ByteBuffer key, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_parent", column_parent.toString(),
"predicate", predicate.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get_count", traceParameters);
}
else
{
logger.debug("get_count");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
Keyspace keyspaceName = Keyspace.open(keyspace);
ColumnFamilyStore cfs = keyspaceName.getColumnFamilyStore(column_parent.column_family);
long timestamp = System.currentTimeMillis();
if (predicate.column_names != null)
return getSliceInternal(keyspace, key, column_parent, timestamp, predicate, consistency_level).size();
int pageSize;
// request by page if this is a large row
if (cfs.getMeanColumns() > 0)
{
int averageColumnSize = (int) (cfs.getMeanRowSize() / cfs.getMeanColumns());
pageSize = Math.min(COUNT_PAGE_SIZE, 4 * 1024 * 1024 / averageColumnSize);
pageSize = Math.max(2, pageSize);
logger.debug("average row column size is {}; using pageSize of {}", averageColumnSize, pageSize);
}
else
{
pageSize = COUNT_PAGE_SIZE;
}
SliceRange sliceRange = predicate.slice_range == null
? new SliceRange(ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, Integer.MAX_VALUE)
: predicate.slice_range;
SliceQueryFilter filter = toInternalFilter(cfs.metadata, column_parent, sliceRange);
return QueryPagers.countPaged(keyspace,
column_parent.column_family,
key,
filter,
ThriftConversion.fromThrift(consistency_level),
pageSize,
timestamp);
}
catch (IllegalArgumentException e)
{
// CASSANDRA-5701
throw new InvalidRequestException(e.getMessage());
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private static ByteBuffer getName(ColumnOrSuperColumn cosc)
{
return cosc.isSetSuper_column() ? cosc.super_column.name :
(cosc.isSetColumn() ? cosc.column.name :
(cosc.isSetCounter_column() ? cosc.counter_column.name : cosc.counter_super_column.name));
}
public Map<ByteBuffer, Integer> multiget_count(List<ByteBuffer> keys, ColumnParent column_parent, SlicePredicate predicate, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
List<String> keysList = Lists.newArrayList();
for (ByteBuffer key : keys)
{
keysList.add(ByteBufferUtil.bytesToHex(key));
}
Map<String, String> traceParameters = ImmutableMap.of("keys", keysList.toString(),
"column_parent", column_parent.toString(),
"predicate", predicate.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("multiget_count", traceParameters);
}
else
{
logger.debug("multiget_count");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
Map<ByteBuffer, Integer> counts = new HashMap<ByteBuffer, Integer>();
Map<ByteBuffer, List<ColumnOrSuperColumn>> columnFamiliesMap = multigetSliceInternal(keyspace,
keys,
column_parent,
System.currentTimeMillis(),
predicate,
consistency_level);
for (Map.Entry<ByteBuffer, List<ColumnOrSuperColumn>> cf : columnFamiliesMap.entrySet())
counts.put(cf.getKey(), cf.getValue().size());
return counts;
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private void internal_insert(ByteBuffer key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level)
throws RequestValidationException, UnavailableException, TimedOutException
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.MODIFY);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_parent.column_family, false);
ThriftValidation.validateKey(metadata, key);
ThriftValidation.validateColumnParent(metadata, column_parent);
// SuperColumn field is usually optional, but not when we're inserting
if (metadata.cfType == ColumnFamilyType.Super && column_parent.super_column == null)
{
throw new org.apache.cassandra.exceptions.InvalidRequestException("missing mandatory super column name for super CF " + column_parent.column_family);
}
ThriftValidation.validateColumnNames(metadata, column_parent, Arrays.asList(column.name));
ThriftValidation.validateColumnData(metadata, column_parent.super_column, column);
org.apache.cassandra.db.Mutation mutation;
try
{
CellName name = metadata.isSuper()
? metadata.comparator.makeCellName(column_parent.super_column, column.name)
: metadata.comparator.cellFromByteBuffer(column.name);
ColumnFamily cf = ArrayBackedSortedColumns.factory.create(cState.getKeyspace(), column_parent.column_family);
cf.addColumn(name, column.value, column.timestamp, column.ttl);
mutation = new org.apache.cassandra.db.Mutation(cState.getKeyspace(), key, cf);
}
catch (MarshalException e)
{
throw new org.apache.cassandra.exceptions.InvalidRequestException(e.getMessage());
}
doInsert(consistency_level, Arrays.asList(mutation));
}
public void insert(ByteBuffer key, ColumnParent column_parent, Column column, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_parent", column_parent.toString(),
"column", column.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("insert", traceParameters);
}
else
{
logger.debug("insert");
}
try
{
internal_insert(key, column_parent, column, consistency_level);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public CASResult cas(ByteBuffer key,
String column_family,
List<Column> expected,
List<Column> updates,
ConsistencyLevel serial_consistency_level,
ConsistencyLevel commit_consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_family", column_family,
"old", expected.toString(),
"updates", updates.toString());
Tracing.instance.begin("cas", traceParameters);
}
else
{
logger.debug("cas");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_family, Permission.MODIFY);
// CAS updates can be used to simulate a get request, so should require Permission.SELECT.
cState.hasColumnFamilyAccess(keyspace, column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_family, false);
ThriftValidation.validateKey(metadata, key);
if (metadata.cfType == ColumnFamilyType.Super)
throw new org.apache.cassandra.exceptions.InvalidRequestException("CAS does not support supercolumns");
Iterable<ByteBuffer> names = Iterables.transform(updates, new Function<Column, ByteBuffer>()
{
public ByteBuffer apply(Column column)
{
return column.name;
}
});
ThriftValidation.validateColumnNames(metadata, new ColumnParent(column_family), names);
for (Column column : updates)
ThriftValidation.validateColumnData(metadata, null, column);
CFMetaData cfm = Schema.instance.getCFMetaData(cState.getKeyspace(), column_family);
ColumnFamily cfUpdates = ArrayBackedSortedColumns.factory.create(cfm);
for (Column column : updates)
cfUpdates.addColumn(cfm.comparator.cellFromByteBuffer(column.name), column.value, column.timestamp);
ColumnFamily cfExpected;
if (expected.isEmpty())
{
cfExpected = null;
}
else
{
cfExpected = ArrayBackedSortedColumns.factory.create(cfm);
for (Column column : expected)
cfExpected.addColumn(cfm.comparator.cellFromByteBuffer(column.name), column.value, column.timestamp);
}
schedule(DatabaseDescriptor.getWriteRpcTimeout());
ColumnFamily result = StorageProxy.cas(cState.getKeyspace(),
column_family,
key,
new ThriftCASConditions(cfExpected),
cfUpdates,
ThriftConversion.fromThrift(serial_consistency_level),
ThriftConversion.fromThrift(commit_consistency_level));
return result == null
? new CASResult(true)
: new CASResult(false).setCurrent_values(thriftifyColumnsAsColumns(result.getSortedColumns(), System.currentTimeMillis()));
}
catch (RequestTimeoutException e)
{
throw ThriftConversion.toThrift(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private List<IMutation> createMutationList(ConsistencyLevel consistency_level,
Map<ByteBuffer,Map<String,List<Mutation>>> mutation_map,
boolean allowCounterMutations)
throws RequestValidationException
{
List<IMutation> mutations = new ArrayList<>();
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
for (Map.Entry<ByteBuffer, Map<String, List<Mutation>>> mutationEntry: mutation_map.entrySet())
{
ByteBuffer key = mutationEntry.getKey();
// We need to separate mutation for standard cf and counter cf (that will be encapsulated in a
// CounterMutation) because it doesn't follow the same code path
org.apache.cassandra.db.Mutation standardMutation = null;
org.apache.cassandra.db.Mutation counterMutation = null;
Map<String, List<Mutation>> columnFamilyToMutations = mutationEntry.getValue();
for (Map.Entry<String, List<Mutation>> columnFamilyMutations : columnFamilyToMutations.entrySet())
{
String cfName = columnFamilyMutations.getKey();
cState.hasColumnFamilyAccess(keyspace, cfName, Permission.MODIFY);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, cfName);
ThriftValidation.validateKey(metadata, key);
org.apache.cassandra.db.Mutation mutation;
if (metadata.isCounter())
{
ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
counterMutation = counterMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : counterMutation;
mutation = counterMutation;
}
else
{
standardMutation = standardMutation == null ? new org.apache.cassandra.db.Mutation(keyspace, key) : standardMutation;
mutation = standardMutation;
}
for (Mutation m : columnFamilyMutations.getValue())
{
ThriftValidation.validateMutation(metadata, m);
if (m.deletion != null)
{
deleteColumnOrSuperColumn(mutation, metadata, m.deletion);
}
if (m.column_or_supercolumn != null)
{
addColumnOrSuperColumn(mutation, metadata, m.column_or_supercolumn);
}
}
}
if (standardMutation != null && !standardMutation.isEmpty())
mutations.add(standardMutation);
if (counterMutation != null && !counterMutation.isEmpty())
{
if (allowCounterMutations)
mutations.add(new CounterMutation(counterMutation, ThriftConversion.fromThrift(consistency_level)));
else
throw new org.apache.cassandra.exceptions.InvalidRequestException("Counter mutations are not allowed in atomic batches");
}
}
return mutations;
}
private void addColumnOrSuperColumn(org.apache.cassandra.db.Mutation mutation, CFMetaData cfm, ColumnOrSuperColumn cosc)
{
if (cosc.super_column != null)
{
for (Column column : cosc.super_column.columns)
{
mutation.add(cfm.cfName, cfm.comparator.makeCellName(cosc.super_column.name, column.name), column.value, column.timestamp, column.ttl);
}
}
else if (cosc.column != null)
{
mutation.add(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.column.name), cosc.column.value, cosc.column.timestamp, cosc.column.ttl);
}
else if (cosc.counter_super_column != null)
{
for (CounterColumn column : cosc.counter_super_column.columns)
{
mutation.addCounter(cfm.cfName, cfm.comparator.makeCellName(cosc.counter_super_column.name, column.name), column.value);
}
}
else // cosc.counter_column != null
{
mutation.addCounter(cfm.cfName, cfm.comparator.cellFromByteBuffer(cosc.counter_column.name), cosc.counter_column.value);
}
}
private void deleteColumnOrSuperColumn(org.apache.cassandra.db.Mutation mutation, CFMetaData cfm, Deletion del)
{
if (del.predicate != null && del.predicate.column_names != null)
{
for (ByteBuffer c : del.predicate.column_names)
{
if (del.super_column == null && cfm.isSuper())
mutation.deleteRange(cfm.cfName, SuperColumns.startOf(c), SuperColumns.endOf(c), del.timestamp);
else if (del.super_column != null)
mutation.delete(cfm.cfName, cfm.comparator.makeCellName(del.super_column, c), del.timestamp);
else
mutation.delete(cfm.cfName, cfm.comparator.cellFromByteBuffer(c), del.timestamp);
}
}
else if (del.predicate != null && del.predicate.slice_range != null)
{
if (del.super_column == null && cfm.isSuper())
mutation.deleteRange(cfm.cfName,
SuperColumns.startOf(del.predicate.getSlice_range().start),
SuperColumns.endOf(del.predicate.getSlice_range().finish),
del.timestamp);
else if (del.super_column != null)
mutation.deleteRange(cfm.cfName,
cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().start),
cfm.comparator.makeCellName(del.super_column, del.predicate.getSlice_range().finish),
del.timestamp);
else
mutation.deleteRange(cfm.cfName,
cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().start),
cfm.comparator.cellFromByteBuffer(del.predicate.getSlice_range().finish),
del.timestamp);
}
else
{
if (del.super_column != null)
mutation.deleteRange(cfm.cfName, SuperColumns.startOf(del.super_column), SuperColumns.endOf(del.super_column), del.timestamp);
else
mutation.delete(cfm.cfName, del.timestamp);
}
}
public void batch_mutate(Map<ByteBuffer,Map<String,List<Mutation>>> mutation_map, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = Maps.newLinkedHashMap();
for (Map.Entry<ByteBuffer, Map<String, List<Mutation>>> mutationEntry : mutation_map.entrySet())
{
traceParameters.put(ByteBufferUtil.bytesToHex(mutationEntry.getKey()),
Joiner.on(";").withKeyValueSeparator(":").join(mutationEntry.getValue()));
}
traceParameters.put("consistency_level", consistency_level.name());
Tracing.instance.begin("batch_mutate", traceParameters);
}
else
{
logger.debug("batch_mutate");
}
try
{
doInsert(consistency_level, createMutationList(consistency_level, mutation_map, true));
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public void atomic_batch_mutate(Map<ByteBuffer,Map<String,List<Mutation>>> mutation_map, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = Maps.newLinkedHashMap();
for (Map.Entry<ByteBuffer, Map<String, List<Mutation>>> mutationEntry : mutation_map.entrySet())
{
traceParameters.put(ByteBufferUtil.bytesToHex(mutationEntry.getKey()),
Joiner.on(";").withKeyValueSeparator(":").join(mutationEntry.getValue()));
}
traceParameters.put("consistency_level", consistency_level.name());
Tracing.instance.begin("atomic_batch_mutate", traceParameters);
}
else
{
logger.debug("atomic_batch_mutate");
}
try
{
doInsert(consistency_level, createMutationList(consistency_level, mutation_map, false), true);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private void internal_remove(ByteBuffer key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level, boolean isCommutativeOp)
throws RequestValidationException, UnavailableException, TimedOutException
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_path.column_family, Permission.MODIFY);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_path.column_family, isCommutativeOp);
ThriftValidation.validateKey(metadata, key);
ThriftValidation.validateColumnPathOrParent(metadata, column_path);
if (isCommutativeOp)
ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
org.apache.cassandra.db.Mutation mutation = new org.apache.cassandra.db.Mutation(keyspace, key);
if (column_path.super_column == null && column_path.column == null)
mutation.delete(column_path.column_family, timestamp);
else if (column_path.super_column == null)
mutation.delete(column_path.column_family, metadata.comparator.cellFromByteBuffer(column_path.column), timestamp);
else if (column_path.column == null)
mutation.deleteRange(column_path.column_family, SuperColumns.startOf(column_path.super_column), SuperColumns.endOf(column_path.super_column), timestamp);
else
mutation.delete(column_path.column_family, metadata.comparator.makeCellName(column_path.super_column, column_path.column), timestamp);
if (isCommutativeOp)
doInsert(consistency_level, Arrays.asList(new CounterMutation(mutation, ThriftConversion.fromThrift(consistency_level))));
else
doInsert(consistency_level, Arrays.asList(mutation));
}
public void remove(ByteBuffer key, ColumnPath column_path, long timestamp, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_path", column_path.toString(),
"timestamp", timestamp + "",
"consistency_level", consistency_level.name());
Tracing.instance.begin("remove", traceParameters);
}
else
{
logger.debug("remove");
}
try
{
internal_remove(key, column_path, timestamp, consistency_level, false);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private void doInsert(ConsistencyLevel consistency_level, List<? extends IMutation> mutations)
throws UnavailableException, TimedOutException, org.apache.cassandra.exceptions.InvalidRequestException
{
doInsert(consistency_level, mutations, false);
}
private void doInsert(ConsistencyLevel consistency_level, List<? extends IMutation> mutations, boolean mutateAtomically)
throws UnavailableException, TimedOutException, org.apache.cassandra.exceptions.InvalidRequestException
{
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForWrite(state().getKeyspace());
if (mutations.isEmpty())
return;
long timeout = Long.MAX_VALUE;
for (IMutation m : mutations)
timeout = Longs.min(timeout, m.getTimeout());
schedule(timeout);
try
{
StorageProxy.mutateWithTriggers(mutations, consistencyLevel, mutateAtomically);
}
catch (RequestExecutionException e)
{
ThriftConversion.rethrow(e);
}
finally
{
release();
}
}
private void validateLogin() throws InvalidRequestException
{
try
{
state().validateLogin();
}
catch (UnauthorizedException e)
{
throw new InvalidRequestException(e.getMessage());
}
}
public KsDef describe_keyspace(String keyspaceName) throws NotFoundException, InvalidRequestException
{
validateLogin();
KSMetaData ksm = Schema.instance.getKSMetaData(keyspaceName);
if (ksm == null)
throw new NotFoundException();
return ksm.toThrift();
}
public List<KeySlice> get_range_slices(ColumnParent column_parent, SlicePredicate predicate, KeyRange range, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of(
"column_parent", column_parent.toString(),
"predicate", predicate.toString(),
"range", range.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get_range_slices", traceParameters);
}
else
{
logger.debug("range_slice");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_parent.column_family);
ThriftValidation.validateColumnParent(metadata, column_parent);
ThriftValidation.validatePredicate(metadata, column_parent, predicate);
ThriftValidation.validateKeyRange(metadata, column_parent.super_column, range);
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForRead(keyspace);
List<Row> rows = null;
IPartitioner<?> p = StorageService.getPartitioner();
AbstractBounds<RowPosition> bounds;
if (range.start_key == null)
{
Token.TokenFactory<?> tokenFactory = p.getTokenFactory();
Token left = tokenFactory.fromString(range.start_token);
Token right = tokenFactory.fromString(range.end_token);
bounds = Range.makeRowRange(left, right, p);
}
else
{
RowPosition end = range.end_key == null
? p.getTokenFactory().fromString(range.end_token).maxKeyBound(p)
: RowPosition.ForKey.get(range.end_key, p);
bounds = new Bounds<RowPosition>(RowPosition.ForKey.get(range.start_key, p), end);
}
long now = System.currentTimeMillis();
schedule(DatabaseDescriptor.getRangeRpcTimeout());
try
{
IDiskAtomFilter filter = ThriftValidation.asIFilter(predicate, metadata, column_parent.super_column);
rows = StorageProxy.getRangeSlice(new RangeSliceCommand(keyspace,
column_parent.column_family,
now,
filter,
bounds,
ThriftConversion.fromThrift(range.row_filter),
range.count),
consistencyLevel);
}
finally
{
release();
}
assert rows != null;
return thriftifyKeySlices(rows, column_parent, predicate, now);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
catch (ReadTimeoutException e)
{
throw ThriftConversion.toThrift(e);
}
catch (org.apache.cassandra.exceptions.UnavailableException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public List<KeySlice> get_paged_slice(String column_family, KeyRange range, ByteBuffer start_column, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException, TException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("column_family", column_family,
"range", range.toString(),
"start_column", ByteBufferUtil.bytesToHex(start_column),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get_paged_slice", traceParameters);
}
else
{
logger.debug("get_paged_slice");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_family);
ThriftValidation.validateKeyRange(metadata, null, range);
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForRead(keyspace);
SlicePredicate predicate = new SlicePredicate().setSlice_range(new SliceRange(start_column, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, -1));
IPartitioner p = StorageService.getPartitioner();
AbstractBounds<RowPosition> bounds;
if (range.start_key == null)
{
// (token, key) is unsupported, assume (token, token)
Token.TokenFactory tokenFactory = p.getTokenFactory();
Token left = tokenFactory.fromString(range.start_token);
Token right = tokenFactory.fromString(range.end_token);
bounds = Range.makeRowRange(left, right, p);
}
else
{
RowPosition end = range.end_key == null
? p.getTokenFactory().fromString(range.end_token).maxKeyBound(p)
: RowPosition.ForKey.get(range.end_key, p);
bounds = new Bounds<RowPosition>(RowPosition.ForKey.get(range.start_key, p), end);
}
if (range.row_filter != null && !range.row_filter.isEmpty())
throw new InvalidRequestException("Cross-row paging is not supported along with index clauses");
List<Row> rows;
long now = System.currentTimeMillis();
schedule(DatabaseDescriptor.getRangeRpcTimeout());
try
{
IDiskAtomFilter filter = ThriftValidation.asIFilter(predicate, metadata, null);
rows = StorageProxy.getRangeSlice(new RangeSliceCommand(keyspace, column_family, now, filter, bounds, null, range.count, true, true), consistencyLevel);
}
finally
{
release();
}
assert rows != null;
return thriftifyKeySlices(rows, new ColumnParent(column_family), predicate, now);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
catch (ReadTimeoutException e)
{
throw ThriftConversion.toThrift(e);
}
catch (org.apache.cassandra.exceptions.UnavailableException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private List<KeySlice> thriftifyKeySlices(List<Row> rows, ColumnParent column_parent, SlicePredicate predicate, long now)
{
List<KeySlice> keySlices = new ArrayList<KeySlice>(rows.size());
boolean reversed = predicate.slice_range != null && predicate.slice_range.reversed;
for (Row row : rows)
{
List<ColumnOrSuperColumn> thriftifiedColumns = thriftifyColumnFamily(row.cf, column_parent.super_column != null, reversed, now);
keySlices.add(new KeySlice(row.key.getKey(), thriftifiedColumns));
}
return keySlices;
}
public List<KeySlice> get_indexed_slices(ColumnParent column_parent, IndexClause index_clause, SlicePredicate column_predicate, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException, TException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("column_parent", column_parent.toString(),
"index_clause", index_clause.toString(),
"slice_predicate", column_predicate.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("get_indexed_slices", traceParameters);
}
else
{
logger.debug("scan");
}
try
{
ThriftClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_parent.column_family, false);
ThriftValidation.validateColumnParent(metadata, column_parent);
ThriftValidation.validatePredicate(metadata, column_parent, column_predicate);
ThriftValidation.validateIndexClauses(metadata, index_clause);
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
consistencyLevel.validateForRead(keyspace);
IPartitioner p = StorageService.getPartitioner();
AbstractBounds<RowPosition> bounds = new Bounds<RowPosition>(RowPosition.ForKey.get(index_clause.start_key, p),
p.getMinimumToken().minKeyBound());
IDiskAtomFilter filter = ThriftValidation.asIFilter(column_predicate, metadata, column_parent.super_column);
long now = System.currentTimeMillis();
RangeSliceCommand command = new RangeSliceCommand(keyspace,
column_parent.column_family,
now,
filter,
bounds,
ThriftConversion.fromThrift(index_clause.expressions),
index_clause.count);
List<Row> rows = StorageProxy.getRangeSlice(command, consistencyLevel);
return thriftifyKeySlices(rows, column_parent, column_predicate, now);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
catch (ReadTimeoutException e)
{
throw ThriftConversion.toThrift(e);
}
catch (org.apache.cassandra.exceptions.UnavailableException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public List<KsDef> describe_keyspaces() throws TException, InvalidRequestException
{
validateLogin();
Set<String> keyspaces = Schema.instance.getKeyspaces();
List<KsDef> ksset = new ArrayList<KsDef>(keyspaces.size());
for (String ks : keyspaces)
{
try
{
ksset.add(describe_keyspace(ks));
}
catch (NotFoundException nfe)
{
logger.info("Failed to find metadata for keyspace '{}'. Continuing... ", ks);
}
}
return ksset;
}
public String describe_cluster_name() throws TException
{
return DatabaseDescriptor.getClusterName();
}
public String describe_version() throws TException
{
return cassandraConstants.VERSION;
}
public List<TokenRange> describe_ring(String keyspace) throws InvalidRequestException
{
try
{
return StorageService.instance.describeRing(keyspace);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
@Override
public List<TokenRange> describe_local_ring(String keyspace) throws InvalidRequestException, TException
{
try
{
return StorageService.instance.describeLocalRing(keyspace);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public Map<String, String> describe_token_map() throws InvalidRequestException
{
return StorageService.instance.getTokenToEndpointMap();
}
public String describe_partitioner() throws TException
{
return StorageService.getPartitioner().getClass().getName();
}
public String describe_snitch() throws TException
{
if (DatabaseDescriptor.getEndpointSnitch() instanceof DynamicEndpointSnitch)
return ((DynamicEndpointSnitch)DatabaseDescriptor.getEndpointSnitch()).subsnitch.getClass().getName();
return DatabaseDescriptor.getEndpointSnitch().getClass().getName();
}
@Deprecated
public List<String> describe_splits(String cfName, String start_token, String end_token, int keys_per_split)
throws TException, InvalidRequestException
{
List<CfSplit> splits = describe_splits_ex(cfName, start_token, end_token, keys_per_split);
List<String> result = new ArrayList<String>(splits.size() + 1);
result.add(splits.get(0).getStart_token());
for (CfSplit cfSplit : splits)
result.add(cfSplit.getEnd_token());
return result;
}
public List<CfSplit> describe_splits_ex(String cfName, String start_token, String end_token, int keys_per_split)
throws InvalidRequestException, TException
{
try
{
Token.TokenFactory tf = StorageService.getPartitioner().getTokenFactory();
Range<Token> tr = new Range<Token>(tf.fromString(start_token), tf.fromString(end_token));
List<Pair<Range<Token>, Long>> splits =
StorageService.instance.getSplits(state().getKeyspace(), cfName, tr, keys_per_split);
List<CfSplit> result = new ArrayList<CfSplit>(splits.size());
for (Pair<Range<Token>, Long> split : splits)
result.add(new CfSplit(split.left.left.toString(), split.left.right.toString(), split.right));
return result;
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public void login(AuthenticationRequest auth_request) throws AuthenticationException, AuthorizationException, TException
{
try
{
AuthenticatedUser user = DatabaseDescriptor.getAuthenticator().authenticate(auth_request.getCredentials());
state().login(user);
}
catch (org.apache.cassandra.exceptions.AuthenticationException e)
{
throw ThriftConversion.toThrift(e);
}
}
/**
* Schedule the current thread for access to the required services
*/
private void schedule(long timeoutMS) throws UnavailableException
{
try
{
requestScheduler.queue(Thread.currentThread(), state().getSchedulingValue(), timeoutMS);
}
catch (TimeoutException e)
{
throw new UnavailableException();
}
}
/**
* Release count for the used up resources
*/
private void release()
{
requestScheduler.release();
}
public String system_add_column_family(CfDef cf_def)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("add_column_family");
try
{
ClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasKeyspaceAccess(keyspace, Permission.CREATE);
cf_def.unsetId(); // explicitly ignore any id set by client (Hector likes to set zero)
CFMetaData cfm = CFMetaData.fromThrift(cf_def);
CFMetaData.validateCompactionOptions(cfm.compactionStrategyClass, cfm.compactionStrategyOptions);
cfm.addDefaultIndexNames();
if (!cfm.getTriggers().isEmpty())
state().ensureIsSuper("Only superusers are allowed to add triggers.");
MigrationManager.announceNewColumnFamily(cfm);
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public String system_drop_column_family(String column_family)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("drop_column_family");
ThriftClientState cState = state();
try
{
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_family, Permission.DROP);
MigrationManager.announceColumnFamilyDrop(keyspace, column_family);
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public String system_add_keyspace(KsDef ks_def)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("add_keyspace");
try
{
ThriftValidation.validateKeyspaceNotSystem(ks_def.name);
state().hasAllKeyspacesAccess(Permission.CREATE);
ThriftValidation.validateKeyspaceNotYetExisting(ks_def.name);
// generate a meaningful error if the user setup keyspace and/or column definition incorrectly
for (CfDef cf : ks_def.cf_defs)
{
if (!cf.getKeyspace().equals(ks_def.getName()))
{
throw new InvalidRequestException("CfDef (" + cf.getName() +") had a keyspace definition that did not match KsDef");
}
}
Collection<CFMetaData> cfDefs = new ArrayList<CFMetaData>(ks_def.cf_defs.size());
for (CfDef cf_def : ks_def.cf_defs)
{
cf_def.unsetId(); // explicitly ignore any id set by client (same as system_add_column_family)
CFMetaData cfm = CFMetaData.fromThrift(cf_def);
cfm.addDefaultIndexNames();
if (!cfm.getTriggers().isEmpty())
state().ensureIsSuper("Only superusers are allowed to add triggers.");
cfDefs.add(cfm);
}
MigrationManager.announceNewKeyspace(KSMetaData.fromThrift(ks_def, cfDefs.toArray(new CFMetaData[cfDefs.size()])));
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public String system_drop_keyspace(String keyspace)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("drop_keyspace");
try
{
ThriftValidation.validateKeyspaceNotSystem(keyspace);
state().hasKeyspaceAccess(keyspace, Permission.DROP);
MigrationManager.announceKeyspaceDrop(keyspace);
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
/** update an existing keyspace, but do not allow column family modifications.
* @throws SchemaDisagreementException
*/
public String system_update_keyspace(KsDef ks_def)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("update_keyspace");
try
{
ThriftValidation.validateKeyspaceNotSystem(ks_def.name);
state().hasKeyspaceAccess(ks_def.name, Permission.ALTER);
ThriftValidation.validateKeyspace(ks_def.name);
if (ks_def.getCf_defs() != null && ks_def.getCf_defs().size() > 0)
throw new InvalidRequestException("Keyspace update must not contain any column family definitions.");
MigrationManager.announceKeyspaceUpdate(KSMetaData.fromThrift(ks_def));
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public String system_update_column_family(CfDef cf_def)
throws InvalidRequestException, SchemaDisagreementException, TException
{
logger.debug("update_column_family");
try
{
if (cf_def.keyspace == null || cf_def.name == null)
throw new InvalidRequestException("Keyspace and CF name must be set.");
state().hasColumnFamilyAccess(cf_def.keyspace, cf_def.name, Permission.ALTER);
CFMetaData oldCfm = Schema.instance.getCFMetaData(cf_def.keyspace, cf_def.name);
if (oldCfm == null)
throw new InvalidRequestException("Could not find column family definition to modify.");
if (!oldCfm.isThriftCompatible())
throw new InvalidRequestException("Cannot modify CQL3 table " + oldCfm.cfName + " as it may break the schema. You should use cqlsh to modify CQL3 tables instead.");
CFMetaData cfm = CFMetaData.fromThriftForUpdate(cf_def, oldCfm);
CFMetaData.validateCompactionOptions(cfm.compactionStrategyClass, cfm.compactionStrategyOptions);
cfm.addDefaultIndexNames();
if (!oldCfm.getTriggers().equals(cfm.getTriggers()))
state().ensureIsSuper("Only superusers are allowed to add or remove triggers.");
MigrationManager.announceColumnFamilyUpdate(cfm, true);
return Schema.instance.getVersion().toString();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public void truncate(String cfname) throws InvalidRequestException, UnavailableException, TimedOutException, TException
{
ClientState cState = state();
try
{
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, cfname, Permission.MODIFY);
if (startSessionIfRequested())
{
Tracing.instance.begin("truncate", ImmutableMap.of("cf", cfname, "ks", keyspace));
}
else
{
logger.debug("truncating {}.{}", cState.getKeyspace(), cfname);
}
schedule(DatabaseDescriptor.getTruncateRpcTimeout());
try
{
StorageProxy.truncateBlocking(cState.getKeyspace(), cfname);
}
finally
{
release();
}
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
catch (org.apache.cassandra.exceptions.UnavailableException e)
{
throw ThriftConversion.toThrift(e);
}
catch (TimeoutException e)
{
throw new TimedOutException();
}
catch (IOException e)
{
throw (UnavailableException) new UnavailableException().initCause(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public void set_keyspace(String keyspace) throws InvalidRequestException, TException
{
try
{
state().setKeyspace(keyspace);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public Map<String, List<String>> describe_schema_versions() throws TException, InvalidRequestException
{
logger.debug("checking schema agreement");
return StorageProxy.describeSchemaVersions();
}
// counter methods
public void add(ByteBuffer key, ColumnParent column_parent, CounterColumn column, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException, TException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("column_parent", column_parent.toString(),
"column", column.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("add", traceParameters);
}
else
{
logger.debug("add");
}
try
{
ClientState cState = state();
String keyspace = cState.getKeyspace();
cState.hasColumnFamilyAccess(keyspace, column_parent.column_family, Permission.MODIFY);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, column_parent.column_family, true);
ThriftValidation.validateKey(metadata, key);
ThriftConversion.fromThrift(consistency_level).validateCounterForWrite(metadata);
ThriftValidation.validateColumnParent(metadata, column_parent);
// SuperColumn field is usually optional, but not when we're adding
if (metadata.cfType == ColumnFamilyType.Super && column_parent.super_column == null)
throw new InvalidRequestException("missing mandatory super column name for super CF " + column_parent.column_family);
ThriftValidation.validateColumnNames(metadata, column_parent, Arrays.asList(column.name));
org.apache.cassandra.db.Mutation mutation = new org.apache.cassandra.db.Mutation(keyspace, key);
try
{
if (metadata.isSuper())
mutation.addCounter(column_parent.column_family, metadata.comparator.makeCellName(column_parent.super_column, column.name), column.value);
else
mutation.addCounter(column_parent.column_family, metadata.comparator.cellFromByteBuffer(column.name), column.value);
}
catch (MarshalException e)
{
throw new InvalidRequestException(e.getMessage());
}
doInsert(consistency_level, Arrays.asList(new CounterMutation(mutation, ThriftConversion.fromThrift(consistency_level))));
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public void remove_counter(ByteBuffer key, ColumnPath path, ConsistencyLevel consistency_level)
throws InvalidRequestException, UnavailableException, TimedOutException, TException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(key),
"column_path", path.toString(),
"consistency_level", consistency_level.name());
Tracing.instance.begin("remove_counter", traceParameters);
}
else
{
logger.debug("remove_counter");
}
try
{
internal_remove(key, path, System.currentTimeMillis(), consistency_level, true);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
private static String uncompress(ByteBuffer query, Compression compression) throws InvalidRequestException
{
String queryString = null;
// Decompress the query string.
try
{
switch (compression)
{
case GZIP:
DataOutputBuffer decompressed = new DataOutputBuffer();
byte[] outBuffer = new byte[1024], inBuffer = new byte[1024];
Inflater decompressor = new Inflater();
int lenRead = 0;
while (true)
{
if (decompressor.needsInput())
lenRead = query.remaining() < 1024 ? query.remaining() : 1024;
query.get(inBuffer, 0, lenRead);
decompressor.setInput(inBuffer, 0, lenRead);
int lenWrite = 0;
while ((lenWrite = decompressor.inflate(outBuffer)) != 0)
decompressed.write(outBuffer, 0, lenWrite);
if (decompressor.finished())
break;
}
decompressor.end();
queryString = new String(decompressed.getData(), 0, decompressed.getLength(), StandardCharsets.UTF_8);
break;
case NONE:
try
{
queryString = ByteBufferUtil.string(query);
}
catch (CharacterCodingException ex)
{
throw new InvalidRequestException(ex.getMessage());
}
break;
}
}
catch (DataFormatException e)
{
throw new InvalidRequestException("Error deflating query string.");
}
return queryString;
}
private void validateCQLVersion(int major) throws InvalidRequestException
{
/*
* The rules are:
* - If no version are set, we don't validate anything. The reason is
* that 1) old CQL2 client might not have called set_cql_version
* and 2) some client may have removed the set_cql_version for CQL3
* when updating to 1.2.0. A CQL3 client upgrading from pre-1.2
* shouldn't be in that case however since set_cql_version uses to
* be mandatory (for CQL3).
* - Otherwise, checks the major matches whatever was set.
*/
SemanticVersion versionSet = state().getCQLVersion();
if (versionSet == null)
return;
if (versionSet.major != major)
throw new InvalidRequestException(
"Cannot execute/prepare CQL" + major + " statement since the CQL has been set to CQL" + versionSet.major
+ "(This might mean your client hasn't been upgraded correctly to use the new CQL3 methods introduced in Cassandra 1.2+).");
}
public CqlResult execute_cql_query(ByteBuffer query, Compression compression)
throws InvalidRequestException, UnavailableException, TimedOutException, SchemaDisagreementException, TException
{
validateCQLVersion(2);
maybeLogCQL2Warning();
try
{
String queryString = uncompress(query, compression);
if (startSessionIfRequested())
{
Tracing.instance.begin("execute_cql_query",
ImmutableMap.of("query", queryString));
}
else
{
logger.debug("execute_cql_query");
}
return QueryProcessor.process(queryString, state());
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public CqlResult execute_cql3_query(ByteBuffer query, Compression compression, ConsistencyLevel cLevel)
throws InvalidRequestException, UnavailableException, TimedOutException, SchemaDisagreementException, TException
{
validateCQLVersion(3);
try
{
String queryString = uncompress(query, compression);
if (startSessionIfRequested())
{
Tracing.instance.begin("execute_cql3_query",
ImmutableMap.of("query", queryString));
}
else
{
logger.debug("execute_cql3_query");
}
ThriftClientState cState = state();
return cState.getCQLQueryHandler().process(queryString, cState.getQueryState(), QueryOptions.fromProtocolV2(ThriftConversion.fromThrift(cLevel), Collections.<ByteBuffer>emptyList())).toThriftResult();
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public CqlPreparedResult prepare_cql_query(ByteBuffer query, Compression compression)
throws InvalidRequestException, TException
{
if (logger.isDebugEnabled())
logger.debug("prepare_cql_query");
validateCQLVersion(2);
maybeLogCQL2Warning();
String queryString = uncompress(query, compression);
ThriftClientState cState = state();
try
{
cState.validateLogin();
return QueryProcessor.prepare(queryString, cState);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
public CqlPreparedResult prepare_cql3_query(ByteBuffer query, Compression compression)
throws InvalidRequestException, TException
{
if (logger.isDebugEnabled())
logger.debug("prepare_cql3_query");
validateCQLVersion(3);
String queryString = uncompress(query, compression);
ThriftClientState cState = state();
try
{
cState.validateLogin();
return cState.getCQLQueryHandler().prepare(queryString, cState.getQueryState()).toThriftPreparedResult();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
}
@Override
public List<ColumnOrSuperColumn> get_multi_slice(MultiSliceRequest request)
throws InvalidRequestException, UnavailableException, TimedOutException
{
if (startSessionIfRequested())
{
Map<String, String> traceParameters = ImmutableMap.of("key", ByteBufferUtil.bytesToHex(request.key),
"column_parent", request.column_parent.toString(),
"consistency_level", request.consistency_level.name(),
"count", String.valueOf(request.count),
"column_slices", request.column_slices.toString());
Tracing.instance.begin("get_multi_slice", traceParameters);
}
else
{
logger.debug("get_multi_slice");
}
try
{
ClientState cState = state();
String keyspace = cState.getKeyspace();
state().hasColumnFamilyAccess(keyspace, request.getColumn_parent().column_family, Permission.SELECT);
CFMetaData metadata = ThriftValidation.validateColumnFamily(keyspace, request.getColumn_parent().column_family);
if (metadata.cfType == ColumnFamilyType.Super)
throw new org.apache.cassandra.exceptions.InvalidRequestException("get_multi_slice does not support super columns");
ThriftValidation.validateColumnParent(metadata, request.getColumn_parent());
org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(request.getConsistency_level());
consistencyLevel.validateForRead(keyspace);
List<ReadCommand> commands = new ArrayList<>(1);
ColumnSlice[] slices = new ColumnSlice[request.getColumn_slices().size()];
for (int i = 0 ; i < request.getColumn_slices().size() ; i++)
{
fixOptionalSliceParameters(request.getColumn_slices().get(i));
Composite start = metadata.comparator.fromByteBuffer(request.getColumn_slices().get(i).start);
Composite finish = metadata.comparator.fromByteBuffer(request.getColumn_slices().get(i).finish);
int compare = metadata.comparator.compare(start, finish);
if (!request.reversed && compare > 0)
throw new InvalidRequestException(String.format("Column slice at index %d had start greater than finish", i));
else if (request.reversed && compare < 0)
throw new InvalidRequestException(String.format("Reversed column slice at index %d had start less than finish", i));
slices[i] = new ColumnSlice(start, finish);
}
ColumnSlice[] deoverlapped = ColumnSlice.deoverlapSlices(slices, request.reversed ? metadata.comparator.reverseComparator() : metadata.comparator);
SliceQueryFilter filter = new SliceQueryFilter(deoverlapped, request.reversed, request.count);
ThriftValidation.validateKey(metadata, request.key);
commands.add(ReadCommand.create(keyspace, request.key, request.column_parent.getColumn_family(), System.currentTimeMillis(), filter));
return getSlice(commands, request.column_parent.isSetSuper_column(), consistencyLevel).entrySet().iterator().next().getValue();
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
/**
* Set the to start-of end-of value of "" for start and finish.
* @param columnSlice
*/
private static void fixOptionalSliceParameters(org.apache.cassandra.thrift.ColumnSlice columnSlice) {
if (!columnSlice.isSetStart())
columnSlice.setStart(new byte[0]);
if (!columnSlice.isSetFinish())
columnSlice.setFinish(new byte[0]);
}
public CqlResult execute_prepared_cql_query(int itemId, List<ByteBuffer> bindVariables)
throws InvalidRequestException, UnavailableException, TimedOutException, SchemaDisagreementException, TException
{
validateCQLVersion(2);
maybeLogCQL2Warning();
if (startSessionIfRequested())
{
// TODO we don't have [typed] access to CQL bind variables here. CASSANDRA-4560 is open to add support.
Tracing.instance.begin("execute_prepared_cql_query", Collections.<String, String>emptyMap());
}
else
{
logger.debug("execute_prepared_cql_query");
}
try
{
ThriftClientState cState = state();
CQLStatement statement = cState.getPrepared().get(itemId);
if (statement == null)
throw new InvalidRequestException(String.format("Prepared query with ID %d not found", itemId));
logger.trace("Retrieved prepared statement #{} with {} bind markers", itemId, statement.boundTerms);
return QueryProcessor.processPrepared(statement, cState, bindVariables);
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
public CqlResult execute_prepared_cql3_query(int itemId, List<ByteBuffer> bindVariables, ConsistencyLevel cLevel)
throws InvalidRequestException, UnavailableException, TimedOutException, SchemaDisagreementException, TException
{
validateCQLVersion(3);
if (startSessionIfRequested())
{
// TODO we don't have [typed] access to CQL bind variables here. CASSANDRA-4560 is open to add support.
Tracing.instance.begin("execute_prepared_cql3_query", Collections.<String, String>emptyMap());
}
else
{
logger.debug("execute_prepared_cql3_query");
}
try
{
ThriftClientState cState = state();
org.apache.cassandra.cql3.CQLStatement statement = cState.getCQLQueryHandler().getPreparedForThrift(itemId);
if (statement == null)
throw new InvalidRequestException(String.format("Prepared query with ID %d not found" +
" (either the query was not prepared on this host (maybe the host has been restarted?)" +
" or you have prepared too many queries and it has been evicted from the internal cache)",
itemId));
logger.trace("Retrieved prepared statement #{} with {} bind markers", itemId, statement.getBoundTerms());
return cState.getCQLQueryHandler().processPrepared(statement,
cState.getQueryState(),
QueryOptions.fromProtocolV2(ThriftConversion.fromThrift(cLevel), bindVariables)).toThriftResult();
}
catch (RequestExecutionException e)
{
throw ThriftConversion.rethrow(e);
}
catch (RequestValidationException e)
{
throw ThriftConversion.toThrift(e);
}
finally
{
Tracing.instance.stopSession();
}
}
/*
* Deprecated, but if a client sets CQL2, it is a no-op for compatibility sake.
* If it sets CQL3 however, we throw an IRE because this mean the client
* hasn't been updated for Cassandra 1.2 and should start using the new
* execute_cql3_query, etc... and there is no point no warning it early.
*/
public void set_cql_version(String version) throws InvalidRequestException
{
try
{
state().setCQLVersion(version);
}
catch (org.apache.cassandra.exceptions.InvalidRequestException e)
{
throw new InvalidRequestException(e.getMessage());
}
}
private void maybeLogCQL2Warning()
{
if (!loggedCQL2Warning)
{
logger.warn("CQL2 has been deprecated since Cassandra 2.0, and will be removed entirely in version 2.2."
+ " Please switch to CQL3 before then.");
loggedCQL2Warning = true;
}
}
public ByteBuffer trace_next_query() throws TException
{
UUID sessionId = UUIDGen.getTimeUUID();
state().getQueryState().prepareTracingSession(sessionId);
return TimeUUIDType.instance.decompose(sessionId);
}
private boolean startSessionIfRequested()
{
if (state().getQueryState().traceNextQuery())
{
state().getQueryState().createTracingSession();
return true;
}
return false;
}
private void registerMetrics()
{
ClientMetrics.instance.addCounter("connectedThriftClients", new Callable<Integer>()
{
@Override
public Integer call() throws Exception
{
return ThriftSessionManager.instance.getConnectedClients();
}
});
}
private static class ThriftCASConditions implements CASConditions
{
private final ColumnFamily expected;
private ThriftCASConditions(ColumnFamily expected)
{
this.expected = expected;
}
public IDiskAtomFilter readFilter()
{
return expected == null || expected.isEmpty()
? new SliceQueryFilter(ColumnSlice.ALL_COLUMNS_ARRAY, false, 1)
: new NamesQueryFilter(ImmutableSortedSet.copyOf(expected.getComparator(), expected.getColumnNames()));
}
public boolean appliesTo(ColumnFamily current)
{
long now = System.currentTimeMillis();
if (!hasLiveCells(expected, now))
return !hasLiveCells(current, now);
else if (!hasLiveCells(current, now))
return false;
// current has been built from expected, so we know that it can't have columns
// that excepted don't have. So we just check that for each columns in expected:
// - if it is a tombstone, whether current has no column or a tombstone;
// - otherwise, that current has a live column with the same value.
for (Cell e : expected)
{
Cell c = current.getColumn(e.name());
if (e.isLive(now))
{
if (c == null || !c.isLive(now) || !c.value().equals(e.value()))
return false;
}
else
{
if (c != null && c.isLive(now))
return false;
}
}
return true;
}
private static boolean hasLiveCells(ColumnFamily cf, long now)
{
return cf != null && !cf.hasOnlyTombstones(now);
}
@Override
public String toString()
{
return expected.toString();
}
}
}