| /* |
| * 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.btree.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.IInMemoryFreePageManager; |
| import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex; |
| import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory; |
| import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor; |
| import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor; |
| import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory; |
| import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache; |
| 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.ILSMOperationTrackerFactory; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache; |
| import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager; |
| import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator; |
| import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager; |
| |
| public class LSMBTreeDataflowHelper extends AbstractLSMIndexDataflowHelper { |
| |
| public LSMBTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition, |
| ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory, |
| ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) { |
| this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES, mergePolicy, opTrackerFactory, |
| ioScheduler, ioOpCallbackProvider); |
| } |
| |
| public LSMBTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition, |
| int memPageSize, int memNumPages, ILSMMergePolicy mergePolicy, |
| ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler, |
| ILSMIOOperationCallbackProvider ioOpCallbackProvider) { |
| super(opDesc, ctx, partition, memPageSize, memNumPages, mergePolicy, opTrackerFactory, ioScheduler, |
| ioOpCallbackProvider); |
| } |
| |
| @Override |
| public ITreeIndex createIndexInstance() throws HyracksDataException { |
| AbstractTreeIndexOperatorDescriptor treeOpDesc = (AbstractTreeIndexOperatorDescriptor) opDesc; |
| ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory(); |
| IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), memPageSize, |
| memNumPages, new TransientFileMapManager()); |
| IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(memNumPages, metaDataFrameFactory); |
| return LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ctx.getIOManager(), file, opDesc |
| .getStorageManager().getBufferCache(ctx), opDesc.getStorageManager().getFileMapProvider(ctx), |
| treeOpDesc.getTreeIndexTypeTraits(), treeOpDesc.getTreeIndexComparatorFactories(), treeOpDesc |
| .getTreeIndexBloomFilterKeyFields(), mergePolicy, opTrackerFactory, ioScheduler, |
| ioOpCallbackProvider, partition); |
| } |
| } |