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/QueueUpdate.java

@@ -0,0 +1,122 @@
+/**
+ * $Revision$
+ * $Date$
+ *
+ * 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.PacketExtension;
+import org.jivesoftware.smack.provider.PacketExtensionProvider;
+import org.xmlpull.v1.XmlPullParser;
+
+/**
+ * An IQ packet that encapsulates both types of workgroup queue
+ * status notifications -- position updates, and estimated time
+ * left in the queue updates.
+ */
+public class QueueUpdate implements PacketExtension {
+
+    /**
+     * Element name of the packet extension.
+     */
+    public static final String ELEMENT_NAME = "queue-status";
+
+    /**
+     * Namespace of the packet extension.
+     */
+    public static final String NAMESPACE = "http://jabber.org/protocol/workgroup";
+
+    private int position;
+    private int remainingTime;
+
+    public QueueUpdate(int position, int remainingTime) {
+        this.position = position;
+        this.remainingTime = remainingTime;
+    }
+
+    /**
+     * Returns the user's position in the workgroup queue, or -1 if the
+     * value isn't set on this packet.
+     *
+     * @return the position in the workgroup queue.
+     */
+    public int getPosition() {
+        return this.position;
+    }
+
+    /**
+     * Returns the user's estimated time left in the workgroup queue, or
+     * -1 if the value isn't set on this packet.
+     *
+     * @return the estimated time left in the workgroup queue.
+     */
+    public int getRemaingTime() {
+        return remainingTime;
+    }
+
+    public String toXML() {
+        StringBuilder buf = new StringBuilder();
+        buf.append("<queue-status xmlns=\"http://jabber.org/protocol/workgroup\">");
+        if (position != -1) {
+            buf.append("<position>").append(position).append("</position>");
+        }
+        if (remainingTime != -1) {
+            buf.append("<time>").append(remainingTime).append("</time>");
+        }
+        buf.append("</queue-status>");
+        return buf.toString();
+    }
+
+    public String getElementName() {
+        return ELEMENT_NAME;
+    }
+
+    public String getNamespace() {
+        return NAMESPACE;
+    }
+
+    public static class Provider implements PacketExtensionProvider {
+
+        public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
+            boolean done = false;
+            int position = -1;
+            int timeRemaining = -1;
+            while (!done) {
+                parser.next();
+                String elementName = parser.getName();
+                if (parser.getEventType() == XmlPullParser.START_TAG && "position".equals(elementName)) {
+                    try {
+                        position = Integer.parseInt(parser.nextText());
+                    }
+                    catch (NumberFormatException nfe) {
+                    }
+                }
+                else if (parser.getEventType() == XmlPullParser.START_TAG && "time".equals(elementName)) {
+                    try {
+                        timeRemaining = Integer.parseInt(parser.nextText());
+                    }
+                    catch (NumberFormatException nfe) {
+                    }
+                }
+                else if (parser.getEventType() == XmlPullParser.END_TAG && "queue-status".equals(elementName)) {
+                    done = true;
+                }
+            }
+            return new QueueUpdate(position, timeRemaining);
+        }
+    }
+}