/*
* Copyright (c) 2011-2015 EPFL DATA Laboratory
* Copyright (c) 2014-2015 The Squall Collaboration (see NOTICE)
*
* All rights reserved.
*
* 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 ch.epfl.data.squall.ewh.components;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.lang.ArrayUtils;
import org.apache.log4j.Logger;
import backtype.storm.Config;
import backtype.storm.topology.TopologyBuilder;
import ch.epfl.data.squall.components.Component;
import ch.epfl.data.squall.components.DataSourceComponent;
import ch.epfl.data.squall.ewh.storm_components.DummyBolt;
import ch.epfl.data.squall.expressions.ValueExpression;
import ch.epfl.data.squall.operators.ChainOperator;
import ch.epfl.data.squall.operators.Operator;
import ch.epfl.data.squall.predicates.Predicate;
import ch.epfl.data.squall.storm_components.StormComponent;
import ch.epfl.data.squall.storm_components.synchronization.TopologyKiller;
import ch.epfl.data.squall.types.Type;
import ch.epfl.data.squall.utilities.MyUtilities;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
public class DummyComponent implements Component {
private static final long serialVersionUID = 1L;
private static Logger LOG = Logger.getLogger(DummyComponent.class);
private final String _componentName;
private long _batchOutputMillis;
private List<Integer> _hashIndexes;
private List<ValueExpression> _hashExpressions;
private final ChainOperator _chain = new ChainOperator();
private boolean _printOut;
private boolean _printOutSet;
private final Component _parent;
private Component _child;
private DummyBolt _dummyBolt;
private List<String> _fullHashList;
public DummyComponent(Component parent, String componentName) {
_parent = parent;
_parent.setChild(this);
_componentName = componentName;
}
@Override
public DummyComponent add(Operator operator) {
_chain.addOperator(operator);
return this;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof Component)
return _componentName.equals(((Component) obj).getName());
else
return false;
}
@Override
public List<DataSourceComponent> getAncestorDataSources() {
final List<DataSourceComponent> list = new ArrayList<DataSourceComponent>();
list.addAll(_parent.getAncestorDataSources());
return list;
}
@Override
public long getBatchOutputMillis() {
return _batchOutputMillis;
}
@Override
public ChainOperator getChainOperator() {
return _chain;
}
@Override
public Component getChild() {
return _child;
}
// from StormComponent
@Override
public String[] getEmitterIDs() {
return _dummyBolt.getEmitterIDs();
}
@Override
public List<String> getFullHashList() {
return _fullHashList;
}
@Override
public List<ValueExpression> getHashExpressions() {
return _hashExpressions;
}
@Override
public List<Integer> getHashIndexes() {
return _hashIndexes;
}
@Override
public String getInfoID() {
return _dummyBolt.getInfoID();
}
@Override
public String getName() {
return _componentName;
}
@Override
public Component[] getParents() {
return new Component[] { _parent };
}
@Override
public boolean getPrintOut() {
return _printOut;
}
@Override
public int hashCode() {
int hash = 5;
hash = 47 * hash
+ (_componentName != null ? _componentName.hashCode() : 0);
return hash;
}
@Override
public void makeBolts(TopologyBuilder builder, TopologyKiller killer,
List<String> allCompNames, Config conf, int hierarchyPosition) {
// by default print out for the last component
// for other conditions, can be set via setPrintOut
if (hierarchyPosition == StormComponent.FINAL_COMPONENT
&& !_printOutSet)
setPrintOut(true);
MyUtilities.checkBatchOutput(_batchOutputMillis,
_chain.getAggregation(), conf);
_dummyBolt = new DummyBolt(_parent, this, allCompNames,
hierarchyPosition, builder, killer, conf);
}
@Override
public DummyComponent setBatchOutputMillis(long millis) {
_batchOutputMillis = millis;
return this;
}
@Override
public void setChild(Component child) {
_child = child;
}
@Override
public DummyComponent setFullHashList(List<String> fullHashList) {
_fullHashList = fullHashList;
return this;
}
@Override
public DummyComponent setHashExpressions(
List<ValueExpression> hashExpressions) {
_hashExpressions = hashExpressions;
return this;
}
@Override
public DummyComponent setOutputPartKey(List<Integer> hashIndexes) {
_hashIndexes = hashIndexes;
return this;
}
@Override
public DummyComponent setOutputPartKey(int... hashIndexes) {
_hashIndexes = Arrays.asList(ArrayUtils.toObject(hashIndexes));
return this;
}
@Override
public DummyComponent setPrintOut(boolean printOut) {
_printOutSet = true;
_printOut = printOut;
return this;
}
@Override
public Component setContentSensitiveThetaJoinWrapper(Type wrapper) {
return this;
}
}