| /* |
| * 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.collectors; |
| |
| import java.util.ArrayList; |
| import java.util.BitSet; |
| import java.util.Collection; |
| |
| import edu.uci.ics.hyracks.api.channels.IInputChannel; |
| import edu.uci.ics.hyracks.api.comm.IFrameReader; |
| import edu.uci.ics.hyracks.api.comm.PartitionChannel; |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.dataflow.ConnectorDescriptorId; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksException; |
| import edu.uci.ics.hyracks.api.partitions.PartitionId; |
| |
| public class PartitionCollector extends AbstractPartitionCollector { |
| private final BitSet expectedPartitions; |
| |
| private final IFrameReader frameReader; |
| |
| private final IPartitionAcceptor pa; |
| |
| public PartitionCollector(IHyracksTaskContext ctx, ConnectorDescriptorId connectorId, int receiverIndex, |
| BitSet expectedPartitions, IFrameReader frameReader, IPartitionAcceptor pa) { |
| super(ctx, connectorId, receiverIndex); |
| this.expectedPartitions = expectedPartitions; |
| this.frameReader = frameReader; |
| this.pa = pa; |
| } |
| |
| @Override |
| public void open() throws HyracksException { |
| } |
| |
| @Override |
| public void addPartitions(Collection<PartitionChannel> partitions) throws HyracksException { |
| for (PartitionChannel pc : partitions) { |
| PartitionId pid = pc.getPartitionId(); |
| IInputChannel channel = pc.getInputChannel(); |
| pa.addPartition(pid, channel); |
| channel.open(); |
| } |
| } |
| |
| @Override |
| public IFrameReader getReader() throws HyracksException { |
| return frameReader; |
| } |
| |
| @Override |
| public void close() throws HyracksException { |
| |
| } |
| |
| @Override |
| public Collection<PartitionId> getRequiredPartitionIds() throws HyracksException { |
| Collection<PartitionId> c = new ArrayList<PartitionId>(expectedPartitions.cardinality()); |
| for (int i = expectedPartitions.nextSetBit(0); i >= 0; i = expectedPartitions.nextSetBit(i + 1)) { |
| c.add(new PartitionId(getJobId(), getConnectorId(), i, getReceiverIndex())); |
| } |
| return c; |
| } |
| |
| @Override |
| public void abort() { |
| |
| } |
| } |