Adding workgroup API (SMACK-185).

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@7400 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smackx/workgroup/packet/DepartQueuePacket.java

@@ -0,0 +1,75 @@
+/**
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2003-2007 Jive Software.
+ *
+ * All rights reserved. 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 at
+ *
+ *     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 org.jivesoftware.smackx.workgroup.packet;
+
+import org.jivesoftware.smack.packet.IQ;
+
+/**
+ * A IQ packet used to depart a workgroup queue. There are two cases for issuing a depart
+ * queue request:<ul>
+ *     <li>The user wants to leave the queue. In this case, an instance of this class
+ *         should be created without passing in a user address.
+ *     <li>An administrator or the server removes wants to remove a user from the queue.
+ *         In that case, the address of the user to remove from the queue should be
+ *         used to create an instance of this class.</ul>
+ *
+ * @author loki der quaeler
+ */
+public class DepartQueuePacket extends IQ {
+
+    private String user;
+
+    /**
+     * Creates a depart queue request packet to the specified workgroup.
+     *
+     * @param workgroup the workgroup to depart.
+     */
+    public DepartQueuePacket(String workgroup) {
+        this(workgroup, null);
+    }
+
+    /**
+     * Creates a depart queue request to the specified workgroup and for the
+     * specified user.
+     *
+     * @param workgroup the workgroup to depart.
+     * @param user the user to make depart from the queue.
+     */
+    public DepartQueuePacket(String workgroup, String user) {
+        this.user = user;
+
+        setTo(workgroup);
+        setType(IQ.Type.SET);
+        setFrom(user);
+    }
+
+    public String getChildElementXML() {
+        StringBuilder buf = new StringBuilder("<depart-queue xmlns=\"http://jabber.org/protocol/workgroup\"");
+
+        if (this.user != null) {
+            buf.append("><jid>").append(this.user).append("</jid></depart-queue>");
+        }
+        else {
+            buf.append("/>");
+        }
+
+        return buf.toString();
+    }
+}