| /* |
| * 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.control.nc.net; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.SocketAddress; |
| import java.nio.ByteBuffer; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import edu.uci.ics.hyracks.api.comm.NetworkAddress; |
| import edu.uci.ics.hyracks.api.dataset.IDatasetPartitionManager; |
| import edu.uci.ics.hyracks.api.dataset.ResultSetId; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksException; |
| import edu.uci.ics.hyracks.api.job.JobId; |
| import edu.uci.ics.hyracks.comm.channels.IChannelConnectionFactory; |
| import edu.uci.ics.hyracks.comm.channels.NetworkOutputChannel; |
| import edu.uci.ics.hyracks.net.buffers.ICloseableBufferAcceptor; |
| import edu.uci.ics.hyracks.net.exceptions.NetException; |
| import edu.uci.ics.hyracks.net.protocols.muxdemux.ChannelControlBlock; |
| import edu.uci.ics.hyracks.net.protocols.muxdemux.IChannelOpenListener; |
| import edu.uci.ics.hyracks.net.protocols.muxdemux.MultiplexedConnection; |
| import edu.uci.ics.hyracks.net.protocols.muxdemux.MuxDemux; |
| import edu.uci.ics.hyracks.net.protocols.muxdemux.MuxDemuxPerformanceCounters; |
| |
| public class DatasetNetworkManager implements IChannelConnectionFactory { |
| private static final Logger LOGGER = Logger.getLogger(DatasetNetworkManager.class.getName()); |
| |
| private static final int MAX_CONNECTION_ATTEMPTS = 5; |
| |
| static final int INITIAL_MESSAGE_SIZE = 20; |
| |
| private final IDatasetPartitionManager partitionManager; |
| |
| private final MuxDemux md; |
| |
| private NetworkAddress networkAddress; |
| |
| public DatasetNetworkManager(InetAddress inetAddress, IDatasetPartitionManager partitionManager, int nThreads) |
| throws IOException { |
| this.partitionManager = partitionManager; |
| md = new MuxDemux(new InetSocketAddress(inetAddress, 0), new ChannelOpenListener(), nThreads, |
| MAX_CONNECTION_ATTEMPTS); |
| } |
| |
| public void start() throws IOException { |
| md.start(); |
| InetSocketAddress sockAddr = md.getLocalAddress(); |
| networkAddress = new NetworkAddress(sockAddr.getAddress().getAddress(), sockAddr.getPort()); |
| } |
| |
| public NetworkAddress getNetworkAddress() { |
| return networkAddress; |
| } |
| |
| public void stop() { |
| |
| } |
| |
| public ChannelControlBlock connect(SocketAddress remoteAddress) throws InterruptedException, NetException { |
| MultiplexedConnection mConn = md.connect((InetSocketAddress) remoteAddress); |
| return mConn.openChannel(); |
| } |
| |
| private class ChannelOpenListener implements IChannelOpenListener { |
| @Override |
| public void channelOpened(ChannelControlBlock channel) { |
| channel.getReadInterface().setFullBufferAcceptor(new InitialBufferAcceptor(channel)); |
| channel.getReadInterface().getEmptyBufferAcceptor().accept(ByteBuffer.allocate(INITIAL_MESSAGE_SIZE)); |
| } |
| } |
| |
| private class InitialBufferAcceptor implements ICloseableBufferAcceptor { |
| private final ChannelControlBlock ccb; |
| |
| private NetworkOutputChannel noc; |
| |
| public InitialBufferAcceptor(ChannelControlBlock ccb) { |
| this.ccb = ccb; |
| } |
| |
| @Override |
| public void accept(ByteBuffer buffer) { |
| JobId jobId = new JobId(buffer.getLong()); |
| ResultSetId rsId = new ResultSetId(buffer.getLong()); |
| int partition = buffer.getInt(); |
| if (LOGGER.isLoggable(Level.FINE)) { |
| LOGGER.fine("Received initial dataset partition read request for JobId: " + jobId + " partition: " |
| + partition + " on channel: " + ccb); |
| } |
| noc = new NetworkOutputChannel(ccb, 1); |
| try { |
| partitionManager.initializeDatasetPartitionReader(jobId, rsId, partition, noc); |
| } catch (HyracksException e) { |
| noc.abort(); |
| } |
| } |
| |
| @Override |
| public void close() { |
| |
| } |
| |
| @Override |
| public void error(int ecode) { |
| if (noc != null) { |
| noc.abort(); |
| } |
| } |
| } |
| |
| public MuxDemuxPerformanceCounters getPerformanceCounters() { |
| return md.getPerformanceCounters(); |
| } |
| } |