| /******************************************************************************* |
| * Copyright (c) 2010 IBM Corporation and others All rights reserved. This |
| * program and the accompanying materials are made available under the terms of |
| * the Eclipse Public License v1.0 which accompanies this distribution, and is |
| * available at http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.debug.transport.packet; |
| |
| import java.io.IOException; |
| import java.io.InterruptedIOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.wst.jsdt.debug.transport.Connection; |
| import org.eclipse.wst.jsdt.debug.transport.exception.DisconnectedException; |
| |
| |
| |
| /** |
| * Default implementation of {@link PacketManager} for sending packets to the |
| * {@link VirtualMachine} |
| * |
| * @since 1.0 |
| */ |
| public final class PacketSendManager extends PacketManager { |
| |
| /** |
| * List of packets to be sent to Virtual Machine |
| */ |
| private final List outgoingPackets = new ArrayList(); |
| |
| /** |
| * Create a new thread that send packets to the {@link VirtualMachine}. |
| * |
| * @param connection the underlying connection to communicate on, <code>null</code> is not accepted |
| */ |
| public PacketSendManager(Connection connection) { |
| super(connection); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.wst.jsdt.debug.internal.core.jsdi.connect.PacketManager#disconnect() |
| */ |
| public void disconnect() { |
| super.disconnect(); |
| synchronized (outgoingPackets) { |
| outgoingPackets.notifyAll(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Runnable#run() |
| */ |
| public void run() { |
| while (!isDisconnected()) { |
| try { |
| sendAvailablePackets(); |
| } |
| // in each case if the remote runtime fails, or has been interrupted, disconnect and force a clean up, don't wait for it to happen |
| catch (InterruptedException e) { |
| disconnect(); |
| } catch (InterruptedIOException e) { |
| disconnect(e); |
| } catch (IOException e) { |
| disconnect(e); |
| } |
| } |
| } |
| |
| /** |
| * Sends the given {@link Packet}. |
| * |
| * @param packet the packet to send, <code>null</code> is not accepted |
| * |
| * @throws DisconnectedException |
| */ |
| public void sendPacket(Packet packet) throws DisconnectedException { |
| if(packet == null) { |
| throw new IllegalArgumentException("You cannot send a null packet"); //$NON-NLS-1$ |
| } |
| if (isDisconnected()) { |
| throw new DisconnectedException("Runtime disconnected", getDisconnectedException()); //$NON-NLS-1$ |
| } |
| synchronized (outgoingPackets) { |
| // Add packet to list of packets to send. |
| outgoingPackets.add(packet); |
| // Notify PacketSendThread that data is available. |
| outgoingPackets.notifyAll(); |
| } |
| } |
| |
| /** |
| * Send available packets to the Virtual Machine. |
| */ |
| private void sendAvailablePackets() throws InterruptedException, IOException { |
| Object[] packetsToSend; |
| synchronized (outgoingPackets) { |
| while (outgoingPackets.size() == 0) { |
| outgoingPackets.wait(); |
| } |
| packetsToSend = outgoingPackets.toArray(); |
| outgoingPackets.clear(); |
| } |
| |
| // Put available packets on Output Stream. |
| for (int i = 0; i < packetsToSend.length; i++) { |
| getConnection().writePacket((Packet) packetsToSend[i]); |
| } |
| } |
| } |