/**
* 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.hadoop.hive.ql.parse;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Properties;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.CompilationOpContext;
import org.apache.hadoop.hive.ql.Context;
import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
import org.apache.hadoop.hive.ql.exec.Operator;
import org.apache.hadoop.hive.ql.exec.ReduceSinkOperator;
import org.apache.hadoop.hive.ql.exec.TableScanOperator;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.plan.BaseWork;
import org.apache.hadoop.hive.ql.plan.FileSinkDesc;
import org.apache.hadoop.hive.ql.plan.MapWork;
import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.ReduceSinkDesc;
import org.apache.hadoop.hive.ql.plan.ReduceWork;
import org.apache.hadoop.hive.ql.plan.TableDesc;
import org.apache.hadoop.hive.ql.plan.TableScanDesc;
import org.apache.hadoop.hive.ql.plan.TezWork;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Tests for GenTezWork.
*
*/
public class TestGenTezWork {
GenTezProcContext ctx;
GenTezWork proc;
ReduceSinkOperator rs;
FileSinkOperator fs;
TableScanOperator ts;
/**
* @throws java.lang.Exception
*/
@SuppressWarnings("unchecked")
@Before
public void setUp() throws Exception {
// Init conf
final HiveConf conf = new HiveConf(SemanticAnalyzer.class);
SessionState.start(conf);
// Init parse context
final ParseContext pctx = new ParseContext();
pctx.setContext(new Context(conf));
ctx = new GenTezProcContext(
conf,
pctx,
Collections.EMPTY_LIST,
new ArrayList<Task<? extends Serializable>>(),
Collections.EMPTY_SET,
Collections.EMPTY_SET);
proc = new GenTezWork(new GenTezUtils() {
@Override
protected void setupMapWork(MapWork mapWork, GenTezProcContext context,
PrunedPartitionList partitions, TableScanOperator root, String alias)
throws SemanticException {
LinkedHashMap<String, Operator<? extends OperatorDesc>> map
= new LinkedHashMap<String, Operator<? extends OperatorDesc>>();
map.put("foo", root);
mapWork.setAliasToWork(map);
return;
}
});
CompilationOpContext cCtx = new CompilationOpContext();
fs = new FileSinkOperator(cCtx);
fs.setConf(new FileSinkDesc());
rs = new ReduceSinkOperator(cCtx);
rs.setConf(new ReduceSinkDesc());
TableDesc tableDesc = new TableDesc();
tableDesc.setProperties(new Properties());
rs.getConf().setKeySerializeInfo(tableDesc);
ts = new TableScanOperator(cCtx);
ts.setConf(new TableScanDesc(null));
ts.getChildOperators().add(rs);
rs.getParentOperators().add(ts);
rs.getChildOperators().add(fs);
fs.getParentOperators().add(rs);
ctx.preceedingWork = null;
ctx.currentRootOperator = ts;
}
/**
* @throws java.lang.Exception
*/
@After
public void tearDown() throws Exception {
ctx = null;
proc = null;
ts = null;
rs = null;
fs = null;
}
@Test
public void testCreateMap() throws SemanticException {
proc.process(rs, null, ctx, (Object[])null);
assertNotNull(ctx.currentTask);
assertTrue(ctx.rootTasks.contains(ctx.currentTask));
TezWork work = ctx.currentTask.getWork();
assertEquals(work.getAllWork().size(),1);
BaseWork w = work.getAllWork().get(0);
assertTrue(w instanceof MapWork);
MapWork mw = (MapWork)w;
// need to make sure names are set for tez to connect things right
assertNotNull(w.getName());
// map work should start with our ts op
assertSame(mw.getAliasToWork().entrySet().iterator().next().getValue(),ts);
// preceeding work must be set to the newly generated map
assertSame(ctx.preceedingWork, mw);
// should have a new root now
assertSame(ctx.currentRootOperator, fs);
}
@Test
public void testCreateReduce() throws SemanticException {
// create map
proc.process(rs, null, ctx, (Object[])null);
// create reduce
proc.process(fs, null, ctx, (Object[])null);
TezWork work = ctx.currentTask.getWork();
assertEquals(work.getAllWork().size(),2);
BaseWork w = work.getAllWork().get(1);
assertTrue(w instanceof ReduceWork);
assertTrue(work.getParents(w).contains(work.getAllWork().get(0)));
ReduceWork rw = (ReduceWork)w;
// need to make sure names are set for tez to connect things right
assertNotNull(w.getName());
// map work should start with our ts op
assertSame(rw.getReducer(),fs);
// should have severed the ties
assertEquals(fs.getParentOperators().size(),0);
}
}