| /* |
| * Copyright 2009-2013 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.dataflow; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.storage.am.common.api.IIndex; |
| import edu.uci.ics.hyracks.storage.am.common.api.IndexException; |
| import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexOperatorDescriptor; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls.PartitionedLSMInvertedIndex; |
| import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.InvertedIndexUtils; |
| import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache; |
| import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider; |
| |
| public final class PartitionedLSMInvertedIndexDataflowHelper extends AbstractLSMIndexDataflowHelper { |
| |
| public PartitionedLSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, |
| int partition, IVirtualBufferCache virtualBufferCache, ILSMMergePolicy mergePolicy, |
| ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler, |
| ILSMIOOperationCallbackProvider ioOpCallbackProvider) { |
| this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy, |
| opTrackerFactory, ioScheduler, ioOpCallbackProvider); |
| } |
| |
| public PartitionedLSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, |
| int partition, IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate, |
| ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory, |
| ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) { |
| super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, |
| ioScheduler, ioOpCallbackProvider); |
| } |
| |
| @Override |
| public IIndex createIndexInstance() throws HyracksDataException { |
| IInvertedIndexOperatorDescriptor invIndexOpDesc = (IInvertedIndexOperatorDescriptor) opDesc; |
| try { |
| IBufferCache diskBufferCache = opDesc.getStorageManager().getBufferCache(ctx); |
| IFileMapProvider diskFileMapProvider = opDesc.getStorageManager().getFileMapProvider(ctx); |
| PartitionedLSMInvertedIndex invIndex = InvertedIndexUtils.createPartitionedLSMInvertedIndex( |
| virtualBufferCache, diskFileMapProvider, invIndexOpDesc.getInvListsTypeTraits(), |
| invIndexOpDesc.getInvListsComparatorFactories(), invIndexOpDesc.getTokenTypeTraits(), |
| invIndexOpDesc.getTokenComparatorFactories(), invIndexOpDesc.getTokenizerFactory(), |
| diskBufferCache, ctx.getIOManager(), file.getFile().getPath(), bloomFilterFalsePositiveRate, |
| mergePolicy, opTrackerFactory.getOperationTracker(ctx), ioScheduler, ioOpCallbackProvider, |
| opDesc.getFileSplitProvider().getFileSplits()[partition].getIODeviceId()); |
| return invIndex; |
| } catch (IndexException e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| } |