| /* |
| * 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.algebricks.runtime.operators.sort; |
| |
| import java.nio.ByteBuffer; |
| |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException; |
| import edu.uci.ics.hyracks.algebricks.runtime.operators.base.AbstractOneInputOneOutputPushRuntime; |
| import edu.uci.ics.hyracks.algebricks.runtime.operators.base.AbstractOneInputOneOutputRuntimeFactory; |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputerFactory; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.std.sort.FrameSorter; |
| |
| public class InMemorySortRuntimeFactory extends AbstractOneInputOneOutputRuntimeFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final int[] sortFields; |
| private INormalizedKeyComputerFactory firstKeyNormalizerFactory; |
| private IBinaryComparatorFactory[] comparatorFactories; |
| |
| public InMemorySortRuntimeFactory(int[] sortFields, INormalizedKeyComputerFactory firstKeyNormalizerFactory, |
| IBinaryComparatorFactory[] comparatorFactories, int[] projectionList) { |
| super(projectionList); |
| // Obs: the projection list is currently ignored. |
| if (projectionList != null) { |
| throw new NotImplementedException("Cannot push projection into InMemorySortRuntime."); |
| } |
| this.sortFields = sortFields; |
| this.firstKeyNormalizerFactory = firstKeyNormalizerFactory; |
| this.comparatorFactories = comparatorFactories; |
| } |
| |
| @Override |
| public AbstractOneInputOneOutputPushRuntime createOneOutputPushRuntime(final IHyracksTaskContext ctx) |
| throws AlgebricksException { |
| |
| return new AbstractOneInputOneOutputPushRuntime() { |
| |
| FrameSorter frameSorter = null; |
| |
| @Override |
| public void open() throws HyracksDataException { |
| if (frameSorter == null) { |
| frameSorter = new FrameSorter(ctx, sortFields, firstKeyNormalizerFactory, comparatorFactories, |
| outputRecordDesc); |
| } |
| frameSorter.reset(); |
| writer.open(); |
| } |
| |
| @Override |
| public void nextFrame(ByteBuffer buffer) throws HyracksDataException { |
| frameSorter.insertFrame(buffer); |
| } |
| |
| @Override |
| public void fail() throws HyracksDataException { |
| writer.fail(); |
| } |
| |
| @Override |
| public void close() throws HyracksDataException { |
| frameSorter.sortFrames(); |
| frameSorter.flushFrames(writer); |
| writer.close(); |
| } |
| }; |
| } |
| } |