| /* |
| * 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.dataflow.std.group.hash; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.dataflow.ActivityId; |
| import edu.uci.ics.hyracks.api.dataflow.IActivityGraphBuilder; |
| import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable; |
| import edu.uci.ics.hyracks.api.dataflow.TaskId; |
| import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider; |
| import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputerFactory; |
| import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor; |
| import edu.uci.ics.hyracks.api.job.IOperatorDescriptorRegistry; |
| import edu.uci.ics.hyracks.dataflow.std.base.AbstractActivityNode; |
| import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorDescriptor; |
| import edu.uci.ics.hyracks.dataflow.std.group.IAggregatorDescriptorFactory; |
| |
| /** |
| * |
| */ |
| public class HashGroupOperatorDescriptor extends AbstractOperatorDescriptor { |
| |
| private static final int HASH_BUILD_ACTIVITY_ID = 0; |
| |
| private static final int OUTPUT_ACTIVITY_ID = 1; |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final int[] keys; |
| private final ITuplePartitionComputerFactory tpcf; |
| private final IBinaryComparatorFactory[] comparatorFactories; |
| |
| private final IAggregatorDescriptorFactory aggregatorFactory; |
| |
| private final int tableSize; |
| |
| public HashGroupOperatorDescriptor(IOperatorDescriptorRegistry spec, int[] keys, |
| ITuplePartitionComputerFactory tpcf, IBinaryComparatorFactory[] comparatorFactories, |
| IAggregatorDescriptorFactory aggregatorFactory, RecordDescriptor outRecordDescriptor, int tableSize) { |
| super(spec, 1, 1); |
| this.keys = keys; |
| this.tpcf = tpcf; |
| this.comparatorFactories = comparatorFactories; |
| this.aggregatorFactory = aggregatorFactory; |
| recordDescriptors[0] = outRecordDescriptor; |
| this.tableSize = tableSize; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * edu.uci.ics.hyracks.api.dataflow.IOperatorDescriptor#contributeActivities |
| * (edu.uci.ics.hyracks.api.dataflow.IActivityGraphBuilder) |
| */ |
| @Override |
| public void contributeActivities(IActivityGraphBuilder builder) { |
| HashBuildActivity ha = new HashBuildActivity(new ActivityId(odId, HASH_BUILD_ACTIVITY_ID)); |
| builder.addActivity(this, ha); |
| |
| OutputActivity oa = new OutputActivity(new ActivityId(odId, OUTPUT_ACTIVITY_ID)); |
| builder.addActivity(this, oa); |
| |
| builder.addSourceEdge(0, ha, 0); |
| builder.addTargetEdge(0, oa, 0); |
| builder.addBlockingEdge(ha, oa); |
| } |
| |
| private class HashBuildActivity extends AbstractActivityNode { |
| private static final long serialVersionUID = 1L; |
| |
| public HashBuildActivity(ActivityId id) { |
| super(id); |
| } |
| |
| @Override |
| public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx, |
| final IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions) { |
| return new HashGroupBuildOperatorNodePushable(ctx, new TaskId(getActivityId(), partition), keys, tpcf, |
| comparatorFactories, aggregatorFactory, tableSize, recordDescProvider.getInputRecordDescriptor( |
| getActivityId(), 0), recordDescriptors[0]); |
| } |
| } |
| |
| private class OutputActivity extends AbstractActivityNode { |
| private static final long serialVersionUID = 1L; |
| |
| public OutputActivity(ActivityId id) { |
| super(id); |
| } |
| |
| @Override |
| public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx, |
| IRecordDescriptorProvider recordDescProvider, final int partition, int nPartitions) { |
| return new HashGroupOutputOperatorNodePushable(ctx, new TaskId(new ActivityId(getOperatorId(), |
| HASH_BUILD_ACTIVITY_ID), partition)); |
| } |
| } |
| } |