| /* |
| * 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.hyracks.storage.am.btree.dataflow; |
| |
| import java.nio.ByteBuffer; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksStageletContext; |
| 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.storage.am.btree.api.IBTreeMetaDataFrame; |
| import edu.uci.ics.hyracks.storage.am.btree.frames.MetaDataFrame; |
| import edu.uci.ics.hyracks.storage.am.btree.impls.BTree; |
| |
| public class BTreeBulkLoadOperatorNodePushable extends AbstractUnaryInputSinkOperatorNodePushable { |
| private float fillFactor; |
| private final BTreeOpHelper btreeOpHelper; |
| private FrameTupleAccessor accessor; |
| private BTree.BulkLoadContext bulkLoadCtx; |
| |
| private IRecordDescriptorProvider recordDescProvider; |
| |
| private PermutingFrameTupleReference tuple = new PermutingFrameTupleReference(); |
| |
| public BTreeBulkLoadOperatorNodePushable(AbstractBTreeOperatorDescriptor opDesc, IHyracksStageletContext ctx, |
| int partition, int[] fieldPermutation, float fillFactor, IRecordDescriptorProvider recordDescProvider) { |
| btreeOpHelper = new BTreeOpHelper(opDesc, ctx, partition, BTreeOpHelper.BTreeMode.CREATE_BTREE); |
| this.fillFactor = fillFactor; |
| this.recordDescProvider = recordDescProvider; |
| tuple.setFieldPermutation(fieldPermutation); |
| } |
| |
| @Override |
| public void open() throws HyracksDataException { |
| AbstractBTreeOperatorDescriptor opDesc = btreeOpHelper.getOperatorDescriptor(); |
| RecordDescriptor recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getOperatorId(), 0); |
| accessor = new FrameTupleAccessor(btreeOpHelper.getHyracksStageletContext().getFrameSize(), recDesc); |
| IBTreeMetaDataFrame metaFrame = new MetaDataFrame(); |
| btreeOpHelper.init(); |
| btreeOpHelper.getBTree().open(btreeOpHelper.getBTreeFileId()); |
| bulkLoadCtx = btreeOpHelper.getBTree().beginBulkLoad(fillFactor, btreeOpHelper.getLeafFrame(), |
| btreeOpHelper.getInteriorFrame(), metaFrame); |
| } |
| |
| @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); |
| btreeOpHelper.getBTree().bulkLoadAddTuple(bulkLoadCtx, tuple); |
| } |
| } |
| |
| @Override |
| public void close() throws HyracksDataException { |
| try { |
| btreeOpHelper.getBTree().endBulkLoad(bulkLoadCtx); |
| } finally { |
| btreeOpHelper.deinit(); |
| } |
| } |
| |
| @Override |
| public void flush() throws HyracksDataException { |
| } |
| } |