| /* |
| * Copyright 2009-2010 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.pregelix.dataflow.std; |
| |
| import java.nio.ByteBuffer; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider; |
| import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAccessor; |
| import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputSinkOperatorNodePushable; |
| import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider; |
| import edu.uci.ics.hyracks.storage.am.common.api.IIndexBulkLoader; |
| import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider; |
| import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex; |
| import edu.uci.ics.hyracks.storage.am.common.api.IndexException; |
| 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.dataflow.TreeIndexDataflowHelper; |
| import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference; |
| import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface; |
| |
| public class TreeIndexBulkReLoadOperatorNodePushable extends AbstractUnaryInputSinkOperatorNodePushable { |
| private final float fillFactor; |
| private final TreeIndexDataflowHelper treeIndexOpHelper; |
| private final IIndexOperatorDescriptor opDesc; |
| private final IRecordDescriptorProvider recordDescProvider; |
| private final PermutingFrameTupleReference tuple = new PermutingFrameTupleReference(); |
| |
| private ITreeIndex index; |
| private FrameTupleAccessor accessor; |
| private IIndexBulkLoader bulkLoader; |
| |
| public TreeIndexBulkReLoadOperatorNodePushable(AbstractTreeIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, |
| int partition, int[] fieldPermutation, float fillFactor, IRecordDescriptorProvider recordDescProvider, |
| IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider, |
| IFileSplitProvider fileSplitProvider) { |
| this.fillFactor = fillFactor; |
| treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper( |
| opDesc, ctx, partition); |
| this.opDesc = opDesc; |
| this.recordDescProvider = recordDescProvider; |
| tuple.setFieldPermutation(fieldPermutation); |
| } |
| |
| @Override |
| public void open() throws HyracksDataException { |
| RecordDescriptor recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0); |
| accessor = new FrameTupleAccessor(treeIndexOpHelper.getTaskContext().getFrameSize(), recDesc); |
| treeIndexOpHelper.create(); |
| treeIndexOpHelper.open(); |
| try { |
| index = (ITreeIndex) treeIndexOpHelper.getIndexInstance(); |
| bulkLoader = index.createBulkLoader(fillFactor, false, 0); |
| } catch (Exception e) { |
| // cleanup in case of failure |
| treeIndexOpHelper.close(); |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| @Override |
| public void nextFrame(ByteBuffer buffer) throws HyracksDataException { |
| accessor.reset(buffer); |
| int tupleCount = accessor.getTupleCount(); |
| for (int i = 0; i < tupleCount; i++) { |
| tuple.reset(accessor, i); |
| try { |
| bulkLoader.add(tuple); |
| } catch (IndexException e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| } |
| |
| @Override |
| public void close() throws HyracksDataException { |
| try { |
| bulkLoader.end(); |
| } catch (IndexException e) { |
| throw new HyracksDataException(e); |
| } finally { |
| treeIndexOpHelper.close(); |
| } |
| } |
| |
| @Override |
| public void fail() throws HyracksDataException { |
| } |
| } |