/**
* This software is licensed to you under the Apache License, Version 2.0 (the
* "Apache License").
*
* LinkedIn's contributions are made under the Apache License. If you contribute
* to the Software, the contributions will be deemed to have been made under the
* Apache License, unless you expressly indicate otherwise. Please do not make any
* contributions that would be inconsistent with the Apache License.
*
* You may obtain a copy of the Apache License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, this software
* distributed under the Apache License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Apache
* License for the specific language governing permissions and limitations for the
* software governed under the Apache License.
*
* © 2012 LinkedIn Corp. All Rights Reserved.
*/
package com.senseidb.search.node;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.log4j.Logger;
import org.apache.lucene.index.IndexReader;
import proj.zoie.api.ZoieIndexReader;
import proj.zoie.impl.indexing.AbstractIndexReaderDecorator;
import com.browseengine.bobo.api.BoboIndexReader;
import com.browseengine.bobo.facets.FacetHandler;
import com.browseengine.bobo.facets.RuntimeFacetHandlerFactory;
public class SenseiIndexReaderDecorator extends AbstractIndexReaderDecorator<BoboIndexReader> {
private final List<FacetHandler<?>> _facetHandlers;
private static final Logger logger = Logger.getLogger(SenseiIndexReaderDecorator.class);
private final List<RuntimeFacetHandlerFactory<?, ?>> _facetHandlerFactories;
private List<BoboListener> boboListeners = new ArrayList<SenseiIndexReaderDecorator.BoboListener>();
public SenseiIndexReaderDecorator(List<FacetHandler<?>> facetHandlers, List<RuntimeFacetHandlerFactory<?, ?>> facetHandlerFactories) {
_facetHandlers = facetHandlers;
_facetHandlerFactories = facetHandlerFactories;
}
public SenseiIndexReaderDecorator() {
this(null, null);
}
public List<FacetHandler<?>> getFacetHandlerList() {
return _facetHandlers;
}
public List<RuntimeFacetHandlerFactory<?, ?>> getFacetHandlerFactories() {
return _facetHandlerFactories;
}
public BoboIndexReader decorate(ZoieIndexReader<BoboIndexReader> zoieReader) throws IOException {
BoboIndexReader boboReader = null;
if (zoieReader != null) {
boboReader = BoboIndexReader.getInstanceAsSubReader(zoieReader, _facetHandlers, _facetHandlerFactories);
}
applyListeners(boboReader);
return boboReader;
}
private BoboIndexReader applyListeners(final BoboIndexReader boboReader) {
for (BoboListener boboListener : boboListeners) {
boboListener.indexCreated(boboReader);
}
boboReader.addReaderFinishedListener(new SenseiIndexReaderFinishedListener(boboListeners));
return boboReader;
}
@Override
public BoboIndexReader redecorate(BoboIndexReader reader, ZoieIndexReader<BoboIndexReader> newReader, boolean withDeletes)
throws IOException {
return applyListeners(reader.copy(newReader));
}
public static interface BoboListener {
public void indexCreated(BoboIndexReader boboIndexReader);
public void indexDeleted(IndexReader indexReader);
}
public void addBoboListener(BoboListener boboListener) {
boboListeners.add(boboListener);
}
}
class SenseiIndexReaderFinishedListener implements IndexReader.ReaderFinishedListener {
private static final Logger log = Logger.getLogger(SenseiIndexReaderFinishedListener.class);
private final Collection<SenseiIndexReaderDecorator.BoboListener> boboListeners;
SenseiIndexReaderFinishedListener(Collection<SenseiIndexReaderDecorator.BoboListener> boboListeners) {
this.boboListeners = boboListeners;
}
@Override
public void finished(IndexReader indexReader) {
for (SenseiIndexReaderDecorator.BoboListener boboListener : boboListeners) {
boboListener.indexDeleted(indexReader);
}
}
}