| /* |
| * Copyright 2009-2012 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.storage.am.lsm.invertedindex.ondisk; |
| |
| import java.io.File; |
| |
| import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits; |
| import edu.uci.ics.hyracks.api.io.FileReference; |
| import edu.uci.ics.hyracks.storage.am.common.api.IndexException; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.impls.IndexFactory; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndex; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexFileNameMapper; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedListBuilder; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedListBuilderFactory; |
| import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache; |
| import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider; |
| |
| public class OnDiskInvertedIndexFactory extends IndexFactory<IInvertedIndex> { |
| |
| protected final IInvertedListBuilderFactory invListBuilderFactory; |
| protected final ITypeTraits[] invListTypeTraits; |
| protected final IBinaryComparatorFactory[] invListCmpFactories; |
| protected final ITypeTraits[] tokenTypeTraits; |
| protected final IBinaryComparatorFactory[] tokenCmpFactories; |
| protected final IInvertedIndexFileNameMapper fileNameMapper; |
| |
| public OnDiskInvertedIndexFactory(IBufferCache bufferCache, IFileMapProvider fileMapProvider, |
| IInvertedListBuilderFactory invListBuilderFactory, ITypeTraits[] invListTypeTraits, |
| IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits, |
| IBinaryComparatorFactory[] tokenCmpFactories, IInvertedIndexFileNameMapper fileNameMapper) { |
| super(bufferCache, fileMapProvider, null); |
| this.invListBuilderFactory = invListBuilderFactory; |
| this.invListTypeTraits = invListTypeTraits; |
| this.invListCmpFactories = invListCmpFactories; |
| this.tokenTypeTraits = tokenTypeTraits; |
| this.tokenCmpFactories = tokenCmpFactories; |
| this.fileNameMapper = fileNameMapper; |
| } |
| |
| @Override |
| public IInvertedIndex createIndexInstance(FileReference dictBTreeFile) throws IndexException { |
| String invListsFilePath = fileNameMapper.getInvListsFilePath(dictBTreeFile.getFile().getPath()); |
| FileReference invListsFile = new FileReference(new File(invListsFilePath)); |
| IInvertedListBuilder invListBuilder = invListBuilderFactory.create(); |
| return new OnDiskInvertedIndex(bufferCache, fileMapProvider, invListBuilder, invListTypeTraits, |
| invListCmpFactories, tokenTypeTraits, tokenCmpFactories, dictBTreeFile, invListsFile); |
| } |
| } |