1 files changed, 75 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tm.te.tcf.locator/src/org/eclipse/tm/te/tcf/locator/listener/ChannelStateChangeListener.java b/target_explorer/plugins/org.eclipse.tm.te.tcf.locator/src/org/eclipse/tm/te/tcf/locator/listener/ChannelStateChangeListener.java
new file mode 100644
index 000000000..99353b7d6
--- /dev/null
+++ b/target_explorer/plugins/org.eclipse.tm.te.tcf.locator/src/org/eclipse/tm/te/tcf/locator/listener/ChannelStateChangeListener.java
@@ -0,0 +1,75 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Wind River Systems, Inc. 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:
+ * Uwe Stieber (Wind River) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tm.te.tcf.locator.listener;
+
+import org.eclipse.tm.tcf.protocol.IChannel;
+import org.eclipse.tm.tcf.protocol.IPeer;
+import org.eclipse.tm.tcf.protocol.Protocol;
+import org.eclipse.tm.te.tcf.core.interfaces.listeners.IChannelStateChangeListener;
+import org.eclipse.tm.te.tcf.locator.interfaces.nodes.ILocatorModel;
+import org.eclipse.tm.te.tcf.locator.interfaces.nodes.IPeerModel;
+import org.eclipse.tm.te.tcf.locator.interfaces.nodes.IPeerModelProperties;
+import org.eclipse.tm.te.tcf.locator.interfaces.services.ILocatorModelLookupService;
+
+
+/**
+ * Channel state change listener implementation.
+ */
+public class ChannelStateChangeListener implements IChannelStateChangeListener {
+	// Reference to the parent model
+	private final ILocatorModel fModel;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param model The parent locator model. Must be not <code>null</code>.
+	 */
+	public ChannelStateChangeListener(ILocatorModel model) {
+		assert model != null;
+		fModel = model;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.tm.te.tcf.tcf.core.interfaces.listeners.IChannelStateChangeListener#stateChanged(org.eclipse.tm.tcf.protocol.IChannel, int)
+	 */
+	public void stateChanged(IChannel channel, int state) {
+		assert Protocol.isDispatchThread() && channel != null;
+
+		switch (state) {
+			case IChannel.STATE_OPEN:
+				IPeer peer = channel.getRemotePeer();
+				// Find the corresponding model node
+				IPeerModel node = fModel.getService(ILocatorModelLookupService.class).lkupPeerModelById(peer.getID());
+				if (node != null) {
+					// Increase the channel reference counter by 1
+					int counter = node.getIntProperty(IPeerModelProperties.PROP_CHANNEL_REF_COUNTER);
+					if (counter < 0) counter = 0;
+					counter++;
+					node.setProperty(IPeerModelProperties.PROP_CHANNEL_REF_COUNTER, counter);
+					if (counter > 0) node.setProperty(IPeerModelProperties.PROP_STATE, IPeerModelProperties.STATE_CONNECTED);
+				}
+				break;
+			case IChannel.STATE_CLOSED:
+				peer = channel.getRemotePeer();
+				// Find the corresponding model node
+				node = fModel.getService(ILocatorModelLookupService.class).lkupPeerModelById(peer.getID());
+				if (node != null) {
+					// Decrease the channel reference counter by 1
+					int counter = node.getIntProperty(IPeerModelProperties.PROP_CHANNEL_REF_COUNTER);
+					counter--;
+					if (counter < 0) counter = 0;
+					node.setProperty(IPeerModelProperties.PROP_CHANNEL_REF_COUNTER, counter);
+					if (counter == 0) node.setProperty(IPeerModelProperties.PROP_STATE, IPeerModelProperties.STATE_REACHABLE);
+				}
+				break;
+		}
+	}
+
+}