/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* Licensed 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 eu.stratosphere.test.compiler.util;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.junit.Before;
import eu.stratosphere.api.common.Plan;
import eu.stratosphere.api.common.functions.Function;
import eu.stratosphere.api.common.io.FileInputFormat.FileBaseStatistics;
import eu.stratosphere.api.common.operators.Operator;
import eu.stratosphere.api.common.operators.base.GenericDataSourceBase;
import eu.stratosphere.compiler.DataStatistics;
import eu.stratosphere.compiler.PactCompiler;
import eu.stratosphere.compiler.costs.DefaultCostEstimator;
import eu.stratosphere.compiler.plan.OptimizedPlan;
import eu.stratosphere.compiler.plan.PlanNode;
import eu.stratosphere.compiler.plan.SingleInputPlanNode;
import eu.stratosphere.nephele.instance.HardwareDescription;
import eu.stratosphere.nephele.instance.HardwareDescriptionFactory;
import eu.stratosphere.nephele.instance.InstanceType;
import eu.stratosphere.nephele.instance.InstanceTypeDescription;
import eu.stratosphere.nephele.instance.InstanceTypeDescriptionFactory;
import eu.stratosphere.nephele.instance.InstanceTypeFactory;
import eu.stratosphere.util.OperatingSystem;
/**
*
*/
public abstract class CompilerTestBase {
protected static final String IN_FILE = OperatingSystem.isWindows() ? "file:/c:/" : "file:///dev/random";
protected static final String OUT_FILE = OperatingSystem.isWindows() ? "file:/c:/" : "file:///dev/null";
protected static final int DEFAULT_PARALLELISM = 8;
protected static final String DEFAULT_PARALLELISM_STRING = String.valueOf(DEFAULT_PARALLELISM);
private static final String CACHE_KEY = "cachekey";
// ------------------------------------------------------------------------
protected DataStatistics dataStats;
protected PactCompiler withStatsCompiler;
protected PactCompiler noStatsCompiler;
protected InstanceTypeDescription instanceType;
private int statCounter;
// ------------------------------------------------------------------------
@Before
public void setup() {
InetSocketAddress dummyAddr = new InetSocketAddress("localhost", 12345);
this.dataStats = new DataStatistics();
this.withStatsCompiler = new PactCompiler(this.dataStats, new DefaultCostEstimator(), dummyAddr);
this.withStatsCompiler.setDefaultDegreeOfParallelism(DEFAULT_PARALLELISM);
this.noStatsCompiler = new PactCompiler(null, new DefaultCostEstimator(), dummyAddr);
this.noStatsCompiler.setDefaultDegreeOfParallelism(DEFAULT_PARALLELISM);
// create the instance type description
InstanceType iType = InstanceTypeFactory.construct("standard", 6, 2, 4096, 100, 0);
HardwareDescription hDesc = HardwareDescriptionFactory.construct(2, 4096 * 1024 * 1024, 2000 * 1024 * 1024);
this.instanceType = InstanceTypeDescriptionFactory.construct(iType, hDesc, DEFAULT_PARALLELISM * 2);
}
// ------------------------------------------------------------------------
public OptimizedPlan compileWithStats(Plan p) {
return this.withStatsCompiler.compile(p, this.instanceType);
}
public OptimizedPlan compileNoStats(Plan p) {
return this.noStatsCompiler.compile(p, this.instanceType);
}
public void setSourceStatistics(GenericDataSourceBase<?, ?> source, long size, float recordWidth) {
setSourceStatistics(source, new FileBaseStatistics(Long.MAX_VALUE, size, recordWidth));
}
public void setSourceStatistics(GenericDataSourceBase<?, ?> source, FileBaseStatistics stats) {
final String key = CACHE_KEY + this.statCounter++;
this.dataStats.cacheBaseStatistics(stats, key);
source.setStatisticsKey(key);
}
public static OperatorResolver getContractResolver(Plan plan) {
return new OperatorResolver(plan);
}
public static OptimizerPlanNodeResolver getOptimizerPlanNodeResolver(OptimizedPlan plan) {
return new OptimizerPlanNodeResolver(plan);
}
// ------------------------------------------------------------------------
public static final class OptimizerPlanNodeResolver {
private final Map<String, ArrayList<PlanNode>> map;
OptimizerPlanNodeResolver(OptimizedPlan p) {
HashMap<String, ArrayList<PlanNode>> map = new HashMap<String, ArrayList<PlanNode>>();
for (PlanNode n : p.getAllNodes()) {
Operator<?> c = n.getOriginalOptimizerNode().getPactContract();
String name = c.getName();
ArrayList<PlanNode> list = map.get(name);
if (list == null) {
list = new ArrayList<PlanNode>(2);
map.put(name, list);
}
// check whether this node is a child of a node with the same contract (aka combiner)
boolean shouldAdd = true;
for (Iterator<PlanNode> iter = list.iterator(); iter.hasNext();) {
PlanNode in = iter.next();
if (in.getOriginalOptimizerNode().getPactContract() == c) {
// is this the child or is our node the child
if (in instanceof SingleInputPlanNode && n instanceof SingleInputPlanNode) {
SingleInputPlanNode thisNode = (SingleInputPlanNode) n;
SingleInputPlanNode otherNode = (SingleInputPlanNode) in;
if (thisNode.getPredecessor() == otherNode) {
// other node is child, remove it
iter.remove();
} else if (otherNode.getPredecessor() == thisNode) {
shouldAdd = false;
}
} else {
throw new RuntimeException("Unrecodnized case in test.");
}
}
}
if (shouldAdd) {
list.add(n);
}
}
this.map = map;
}
@SuppressWarnings("unchecked")
public <T extends PlanNode> T getNode(String name) {
List<PlanNode> nodes = this.map.get(name);
if (nodes == null || nodes.isEmpty()) {
throw new RuntimeException("No node found with the given name.");
} else if (nodes.size() != 1) {
throw new RuntimeException("Multiple nodes found with the given name.");
} else {
return (T) nodes.get(0);
}
}
@SuppressWarnings("unchecked")
public <T extends PlanNode> T getNode(String name, Class<? extends Function> stubClass) {
List<PlanNode> nodes = this.map.get(name);
if (nodes == null || nodes.isEmpty()) {
throw new RuntimeException("No node found with the given name and stub class.");
} else {
PlanNode found = null;
for (PlanNode node : nodes) {
if (node.getClass() == stubClass) {
if (found == null) {
found = node;
} else {
throw new RuntimeException("Multiple nodes found with the given name and stub class.");
}
}
}
if (found == null) {
throw new RuntimeException("No node found with the given name and stub class.");
} else {
return (T) found;
}
}
}
public List<PlanNode> getNodes(String name) {
List<PlanNode> nodes = this.map.get(name);
if (nodes == null || nodes.isEmpty()) {
throw new RuntimeException("No node found with the given name.");
} else {
return new ArrayList<PlanNode>(nodes);
}
}
}
}