From 7c448b92a24145ed2b179f4395698c459c48b1ca Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@freenetproject.org>
Date: Sat, 3 May 2008 20:48:01 +0000
Subject: [PATCH] add high-level client listener

git-svn-id: http://trooper/svn/projects/jFCPlib/branch/high-level-client@845 c3eda9e8-030b-0410-8277-bc7414b0a119
---
 .../fcp/highlevel/HighLevelClient.java             | 49 +++++++++++++++++++++
 .../fcp/highlevel/HighLevelClientListener.java     | 50 ++++++++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 src/net/pterodactylus/fcp/highlevel/HighLevelClientListener.java

diff --git a/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java b/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java
index d5252ad..f1b3598 100644
--- a/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java
+++ b/src/net/pterodactylus/fcp/highlevel/HighLevelClient.java
@@ -27,8 +27,10 @@ import java.io.IOException;
 import java.net.InetAddress;
 import java.net.URL;
 import java.net.UnknownHostException;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.logging.Logger;
@@ -109,6 +111,9 @@ public class HighLevelClient {
 	/** The FCP connection to the node. */
 	private FcpConnection fcpConnection;
 
+	/** Listeners for high-level client events. */
+	private List<HighLevelClientListener> highLevelClientListeners = Collections.synchronizedList(new ArrayList<HighLevelClientListener>());
+
 	/** The listener for the connection. */
 	private HighLevelClientFcpListener highLevelClientFcpListener = new HighLevelClientFcpListener();
 
@@ -193,6 +198,48 @@ public class HighLevelClient {
 	}
 
 	//
+	// EVENT MANAGEMENT
+	//
+
+	/**
+	 * Adds the given high-level client listener to list of listeners.
+	 *
+	 * @param highLevelClientListener
+	 *            The listener to add
+	 */
+	public void addHighLevelClientListener(HighLevelClientListener highLevelClientListener) {
+		highLevelClientListeners.add(highLevelClientListener);
+	}
+
+	/**
+	 * Removes the given high-level client listener from the list of listeners.
+	 *
+	 * @param highLevelClientListener
+	 *            The listener to remove
+	 */
+	public void removeHighLevelClientListener(HighLevelClientListener highLevelClientListener) {
+		highLevelClientListeners.remove(highLevelClientListener);
+	}
+
+	/**
+	 * Notifies all listeners that a client has connected.
+	 */
+	private void fireClientConnected() {
+		for (HighLevelClientListener highLevelClientListener: highLevelClientListeners) {
+			highLevelClientListener.clientConnected(this);
+		}
+	}
+
+	/**
+	 * Notifies all listeners that a client has disconnected.
+	 */
+	private void fireClientDisconnected() {
+		for (HighLevelClientListener highLevelClientListener: highLevelClientListeners) {
+			highLevelClientListener.clientDisconnected(this);
+		}
+	}
+
+	//
 	// ACCESSORS
 	//
 
@@ -232,6 +279,7 @@ public class HighLevelClient {
 	 */
 	public void disconnect() {
 		fcpConnection.close();
+		fireClientDisconnected();
 	}
 
 	/**
@@ -701,6 +749,7 @@ public class HighLevelClient {
 				connectCallback.setDone();
 				connectCallback = null;
 			}
+			fireClientConnected();
 		}
 
 		/**
diff --git a/src/net/pterodactylus/fcp/highlevel/HighLevelClientListener.java b/src/net/pterodactylus/fcp/highlevel/HighLevelClientListener.java
new file mode 100644
index 0000000..aef7fd4
--- /dev/null
+++ b/src/net/pterodactylus/fcp/highlevel/HighLevelClientListener.java
@@ -0,0 +1,50 @@
+/*
+ * jFCPlib-high-level-client - HighLevelClientListener.java -
+ * Copyright © 2008 David Roden
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+package net.pterodactylus.fcp.highlevel;
+
+import java.util.EventListener;
+
+/**
+ * Interface for objects that want to be notified on certain high-level client
+ * events.
+ *
+ * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
+ * @version $Id$
+ */
+public interface HighLevelClientListener extends EventListener {
+
+	/**
+	 * Notifies a listener that the given high-level client was connected to the
+	 * node.
+	 *
+	 * @param highLevelClient
+	 *            The client that was connected
+	 */
+	public void clientConnected(HighLevelClient highLevelClient);
+
+	/**
+	 * Notifies a listener that the given client was disconnected from the node.
+	 *
+	 * @param highLevelClient
+	 *            The client that was disconnected
+	 */
+	public void clientDisconnected(HighLevelClient highLevelClient);
+
+}
-- 
2.7.4