Initial roster support.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1835 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smack/RosterGroup.java

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+/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright (C) 2002-2003 Jive Software. All rights reserved.
+ * ====================================================================
+ * The Jive Software License (based on Apache Software License, Version 1.1)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by
+ *        Jive Software (http://www.jivesoftware.com)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Smack" and "Jive Software" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please
+ *    contact webmaster@jivesoftware.com.
+ *
+ * 5. Products derived from this software may not be called "Smack",
+ *    nor may "Smack" appear in their name, without prior written
+ *    permission of Jive Software.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL JIVE SOFTWARE OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ */
+
+
+package org.jivesoftware.smack;
+
+import org.jivesoftware.smack.packet.RosterPacket;
+import org.jivesoftware.smack.packet.IQ;
+
+import java.util.*;
+
+/**
+ *
+ * @see Roster#getGroup(String)
+ * @author Matt Tucker
+ */
+public class RosterGroup {
+
+    private String name;
+    private XMPPConnection connection;
+    List entries;
+
+    /**
+     * Creates a new roster group instance.
+     *
+     * @param name the name of the group.
+     * @param connection the connection the group belongs to.
+     */
+    RosterGroup(String name, XMPPConnection connection) {
+        this.name = name;
+        this.connection = connection;
+        entries = new ArrayList();
+    }
+
+    /**
+     * Returns the name of the group.
+     *
+     * @return the name of the group.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the name of the group.
+     *
+     * @param name the name of the group.
+     */
+    public void setName(String name) {
+        this.name = name;
+        synchronized (entries) {
+            for (int i=0; i<entries.size(); i++) {
+                RosterPacket packet = new RosterPacket();
+                packet.setType(IQ.Type.SET);
+                RosterEntry entry = (RosterEntry)entries.get(i);
+                packet.addRosterItem(RosterEntry.toRosterItem(entry));
+                connection.sendPacket(packet);
+            }
+        }
+    }
+
+    public int getEntryCount() {
+        synchronized (entries) {
+            return entries.size();
+        }
+    }
+
+    public Iterator getEntries() {
+        return Collections.unmodifiableList(entries).iterator();
+    }
+
+    public boolean contains(RosterEntry entry) {
+        return entries.contains(entry);
+    }
+
+    public void addEntry(RosterEntry entry) {
+        // Only add the entry if it isn't already in the list.
+        synchronized (entries) {
+            if (!entries.contains(entry)) {
+                entries.add(entry);
+                RosterPacket packet = new RosterPacket();
+                packet.setType(IQ.Type.SET);
+                packet.addRosterItem(RosterEntry.toRosterItem(entry));
+                connection.sendPacket(packet);
+            }
+        }
+    }
+
+    public void removeEntry(RosterEntry entry) {
+        // Only remove the entry if it's in the entry list.
+        synchronized (entries) {
+            if (entries.contains(entry)) {
+                entries.remove(entry);
+                RosterPacket packet = new RosterPacket();
+                packet.setType(IQ.Type.SET);
+                packet.addRosterItem(RosterEntry.toRosterItem(entry));
+                connection.sendPacket(packet);
+            }
+        }
+    }
+
+    void addEntryLocal(RosterEntry entry) {
+        // Only add the entry if it isn't already in the list.
+        synchronized (entries) {
+            entries.remove(entry);
+            entries.add(entry);
+        }
+    }
+
+    void removeEntryLocal(RosterEntry entry) {
+         // Only remove the entry if it's in the entry list.
+        synchronized (entries) {
+            if (entries.contains(entry)) {
+                entries.remove(entry);
+            }
+        }
+    }
+}