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* 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.tajo.worker;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.apache.commons.codec.binary.Base64;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.tajo.LocalTajoTestingUtility;
import org.apache.tajo.TajoTestingCluster;
import org.apache.tajo.algebra.Expr;
import org.apache.tajo.catalog.*;
import org.apache.tajo.catalog.proto.CatalogProtos.StoreType;
import org.apache.tajo.common.TajoDataTypes.Type;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.datum.Datum;
import org.apache.tajo.datum.DatumFactory;
import org.apache.tajo.engine.parser.SQLAnalyzer;
import org.apache.tajo.engine.planner.*;
import org.apache.tajo.engine.planner.logical.LogicalNode;
import org.apache.tajo.engine.planner.physical.*;
import org.apache.tajo.storage.*;
import org.apache.tajo.storage.index.bst.BSTIndex;
import org.apache.tajo.util.CommonTestingUtil;
import org.apache.tajo.worker.dataserver.retriever.FileChunk;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class TestRangeRetrieverHandler {
private TajoTestingCluster util;
private TajoConf conf;
private CatalogService catalog;
private SQLAnalyzer analyzer;
private LogicalPlanner planner;
private LogicalOptimizer optimizer;
private AbstractStorageManager sm;
private Schema schema;
private static int TEST_TUPLE = 10000;
private FileSystem fs;
private Path testDir;
@Before
public void setUp() throws Exception {
util = new TajoTestingCluster();
conf = util.getConfiguration();
testDir = CommonTestingUtil.getTestDir("target/test-data/TestRangeRetrieverHandler");
fs = testDir.getFileSystem(conf);
util.startCatalogCluster();
catalog = util.getMiniCatalogCluster().getCatalog();
sm = StorageManagerFactory.getStorageManager(conf, testDir);
analyzer = new SQLAnalyzer();
planner = new LogicalPlanner(catalog);
optimizer = new LogicalOptimizer();
schema = new Schema();
schema.addColumn("empId", Type.INT4);
schema.addColumn("age", Type.INT4);
}
@After
public void tearDown() {
util.shutdownCatalogCluster();
}
public String [] SORT_QUERY = {
"select empId, age from employee order by empId, age",
"select empId, age from employee order by empId desc, age desc"
};
@Test
public void testGet() throws Exception {
Tuple firstTuple = null;
Tuple lastTuple;
TableMeta employeeMeta = CatalogUtil.newTableMeta(schema, StoreType.CSV);
Path tableDir = StorageUtil.concatPath(testDir, "testGet", "table.csv");
fs.mkdirs(tableDir.getParent());
Appender appender = sm.getAppender(employeeMeta, tableDir);
appender.init();
Tuple tuple = new VTuple(employeeMeta.getSchema().getColumnNum());
for (int i = 0; i < TEST_TUPLE; i++) {
tuple.put(
new Datum[] {
DatumFactory.createInt4(i),
DatumFactory.createInt4(i + 5)
});
appender.addTuple(tuple);
if (firstTuple == null) {
firstTuple = new VTuple(tuple);
}
}
lastTuple = new VTuple(tuple);
appender.flush();
appender.close();
TableDesc employee = new TableDescImpl("employee", employeeMeta, tableDir);
catalog.addTable(employee);
Fragment[] frags = StorageManager.splitNG(conf, "employee", employeeMeta, tableDir, Integer.MAX_VALUE);
TaskAttemptContext
ctx = new TaskAttemptContext(conf, LocalTajoTestingUtility.newQueryUnitAttemptId(),
new Fragment[] {frags[0]}, testDir);
Expr expr = analyzer.parse(SORT_QUERY[0]);
LogicalPlan plan = planner.createPlan(expr);
LogicalNode rootNode = optimizer.optimize(plan);
PhysicalPlanner phyPlanner = new PhysicalPlannerImpl(conf,sm);
PhysicalExec exec = phyPlanner.createPlan(ctx, rootNode);
ProjectionExec proj = (ProjectionExec) exec;
MemSortExec sort = (MemSortExec) proj.getChild();
SortSpec[] sortSpecs = sort.getPlan().getSortKeys();
IndexedStoreExec idxStoreExec = new IndexedStoreExec(ctx, sm, sort, sort.getSchema(),
sort.getSchema(), sortSpecs);
exec = idxStoreExec;
exec.init();
exec.next();
exec.close();
Schema keySchema = PlannerUtil.sortSpecsToSchema(sortSpecs);
TupleComparator comp = new TupleComparator(keySchema, sortSpecs);
BSTIndex bst = new BSTIndex(conf);
BSTIndex.BSTIndexReader reader = bst.getIndexReader(
new Path(testDir, "output/index"), keySchema, comp);
reader.open();
SeekableScanner scanner = StorageManagerFactory.getSeekableScanner(conf, employeeMeta,
StorageUtil.concatPath(testDir, "output", "output"));
scanner.init();
int cnt = 0;
while(scanner.next() != null) {
cnt++;
}
scanner.reset();
assertEquals(TEST_TUPLE ,cnt);
Tuple keytuple = new VTuple(2);
for(int i = 1 ; i < TEST_TUPLE ; i ++) {
keytuple.put(0, DatumFactory.createInt4(i));
keytuple.put(1, DatumFactory.createInt4(i + 5));
long offsets = reader.find(keytuple);
scanner.seek(offsets);
tuple = scanner.next();
assertTrue("[seek check " + (i) + " ]" , i == tuple.get(0).asInt4());
//assertTrue("[seek check " + (i) + " ]" , ("name_" + i).equals(tuple.get(1).asChars()));
}
TupleRange totalRange = new TupleRange(keySchema, firstTuple, lastTuple);
UniformRangePartition partitioner = new UniformRangePartition(keySchema, totalRange, true);
TupleRange [] partitions = partitioner.partition(7);
// The below is for testing RangeRetrieverHandler.
RangeRetrieverHandler handler = new RangeRetrieverHandler(
new File((new Path(testDir, "output")).toUri()), keySchema, comp);
List<Long []> offsets = new ArrayList<Long []>();
for (int i = 0; i < partitions.length; i++) {
FileChunk chunk = getFileChunk(handler, keySchema, partitions[i], i == (partitions.length - 1));
offsets.add(new Long[] {chunk.startOffset(), chunk.length()});
}
scanner.close();
Long[] previous = null;
for (Long [] offset : offsets) {
if (offset[0] == 0 && previous == null) {
previous = offset;
continue;
}
assertTrue(previous[0] + previous[1] == offset[0]);
previous = offset;
}
long fileLength = new File((new Path(testDir, "index").toUri())).length();
assertTrue(previous[0] + previous[1] == fileLength);
}
@Test
public void testGetFromDescendingOrder() throws Exception {
Tuple firstTuple = null;
Tuple lastTuple;
TableMeta meta = CatalogUtil.newTableMeta(schema, StoreType.CSV);
Path tablePath = StorageUtil.concatPath(testDir, "testGetFromDescendingOrder", "table.csv");
fs.mkdirs(tablePath.getParent());
Appender appender = sm.getAppender(meta, tablePath);
appender.init();
Tuple tuple = new VTuple(meta.getSchema().getColumnNum());
for (int i = (TEST_TUPLE - 1); i >= 0 ; i--) {
tuple.put(
new Datum[] {
DatumFactory.createInt4(i),
DatumFactory.createInt4(i + 5)
});
appender.addTuple(tuple);
if (firstTuple == null) {
firstTuple = new VTuple(tuple);
}
}
lastTuple = new VTuple(tuple);
appender.flush();
appender.close();
TableDesc employee = new TableDescImpl("employee", meta, tablePath);
catalog.addTable(employee);
Fragment[] frags = sm.splitNG(conf, "employee", meta, tablePath, Integer.MAX_VALUE);
TaskAttemptContext
ctx = new TaskAttemptContext(conf, LocalTajoTestingUtility.newQueryUnitAttemptId(),
new Fragment[] {frags[0]}, testDir);
Expr expr = analyzer.parse(SORT_QUERY[1]);
LogicalPlan plan = planner.createPlan(expr);
LogicalNode rootNode = optimizer.optimize(plan);
PhysicalPlanner phyPlanner = new PhysicalPlannerImpl(conf,sm);
PhysicalExec exec = phyPlanner.createPlan(ctx, rootNode);
ProjectionExec proj = (ProjectionExec) exec;
MemSortExec sort = (MemSortExec) proj.getChild();
SortSpec[] sortSpecs = sort.getPlan().getSortKeys();
IndexedStoreExec idxStoreExec = new IndexedStoreExec(ctx, sm, sort,
sort.getSchema(), sort.getSchema(), sortSpecs);
exec = idxStoreExec;
exec.init();
exec.next();
exec.close();
Schema keySchema = PlannerUtil.sortSpecsToSchema(sortSpecs);
TupleComparator comp = new TupleComparator(keySchema, sortSpecs);
BSTIndex bst = new BSTIndex(conf);
BSTIndex.BSTIndexReader reader = bst.getIndexReader(
new Path(testDir, "output/index"), keySchema, comp);
reader.open();
SeekableScanner scanner = StorageManagerFactory.getSeekableScanner(conf, meta,
StorageUtil.concatPath(testDir, "output", "output"));
scanner.init();
int cnt = 0;
while(scanner.next() != null) {
cnt++;
}
scanner.reset();
assertEquals(TEST_TUPLE ,cnt);
Tuple keytuple = new VTuple(2);
for(int i = (TEST_TUPLE - 1) ; i >= 0; i --) {
keytuple.put(0, DatumFactory.createInt4(i));
keytuple.put(1, DatumFactory.createInt4(i + 5));
long offsets = reader.find(keytuple);
scanner.seek(offsets);
tuple = scanner.next();
assertTrue("[seek check " + (i) + " ]" , i == tuple.get(0).asInt4());
}
TupleRange totalRange = new TupleRange(keySchema, lastTuple, firstTuple);
UniformRangePartition partitioner = new UniformRangePartition(keySchema, totalRange, true);
TupleRange [] partitions = partitioner.partition(25);
File dataFile = new File((new Path(testDir, "output")).toUri());
// The below is for testing RangeRetrieverHandler.
RangeRetrieverHandler handler = new RangeRetrieverHandler(
dataFile, keySchema, comp);
List<Long []> offsets = new ArrayList<Long []>();
for (int i = 0; i < partitions.length; i++) {
FileChunk chunk = getFileChunk(handler, keySchema, partitions[i], i == 0);
offsets.add(new Long[] {chunk.startOffset(), chunk.length()});
}
scanner.close();
long fileLength = new File(dataFile, "data/data").length();
Long[] previous = null;
for (Long [] offset : offsets) {
if (previous == null) {
assertTrue(offset[0] + offset[1] == fileLength);
previous = offset;
continue;
}
assertTrue(offset[0] + offset[1] == previous[0]);
previous = offset;
}
}
private FileChunk getFileChunk(RangeRetrieverHandler handler, Schema keySchema,
TupleRange range, boolean last) throws IOException {
Map<String,List<String>> kvs = Maps.newHashMap();
kvs.put("start", Lists.newArrayList(
new String(Base64.encodeBase64(
RowStoreUtil.RowStoreEncoder.toBytes(keySchema, range.getStart()),
false))));
kvs.put("end", Lists.newArrayList(
new String(Base64.encodeBase64(
RowStoreUtil.RowStoreEncoder.toBytes(keySchema, range.getEnd()), false))));
if (last) {
kvs.put("final", Lists.newArrayList("true"));
}
return handler.get(kvs);
}
}