Adds Jingle XEP-0338 group packet extension.

src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/GroupPacketExtension.java

@@ -0,0 +1,116 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.protocol.jabber.extensions.jingle;
+
+import net.java.sip.communicator.impl.protocol.jabber.extensions.*;
+
+import java.util.*;
+
+/**
+ * Jingle group packet extension(XEP-0338).
+ *
+ * @author Pawel Domas
+ */
+public class GroupPacketExtension
+    extends AbstractPacketExtension
+{
+    /**
+     * The name of the "group" element.
+     */
+    public static final String ELEMENT_NAME = "group";
+
+    /**
+     * The namespace for the "group" element.
+     */
+    public static final String NAMESPACE = "urn:xmpp:jingle:apps:grouping:0";
+
+    /**
+     * The name of the payload <tt>id</tt> SDP argument.
+     */
+    public static final String SEMANTICS_ATTR_NAME = "semantics";
+
+    /**
+     * Name of the "bundle" semantics.
+     */
+    public static final String SEMANTICS_BUNDLE = "BUNDLE";
+
+    /**
+     * Creates a new {@link GroupPacketExtension} instance with the proper
+     * element name and namespace.
+     */
+    public GroupPacketExtension()
+    {
+        super(NAMESPACE, ELEMENT_NAME);
+    }
+
+    /**
+     * Creates new <tt>GroupPacketExtension</tt> for BUNDLE semantics
+     * initialized with given <tt>contents</tt> list.
+     *
+     * @param contents the list that contains the contents to be bundled.
+     *
+     * @return new <tt>GroupPacketExtension</tt> for BUNDLE semantics
+     *         initialized with given <tt>contents</tt> list.
+     */
+    public static GroupPacketExtension createBundleGroup(
+            List<ContentPacketExtension> contents)
+    {
+        GroupPacketExtension group = new GroupPacketExtension();
+
+        group.setSemantics(SEMANTICS_BUNDLE);
+
+        group.addContents(contents);
+
+        return group;
+    }
+
+    /**
+     * Gets the semantics of this group.
+     *
+     * @return the semantics of this group.
+     */
+    public String getSemantics()
+    {
+        return getAttributeAsString(SEMANTICS_ATTR_NAME);
+    }
+
+    /**
+     * Sets the semantics of this group.
+     */
+    public void setSemantics(String semantics)
+    {
+        this.setAttribute(SEMANTICS_ATTR_NAME, semantics);
+    }
+
+    /**
+     * Gets the contents of this group.
+     *
+     * @return the contents of this group.
+     */
+    public List<ContentPacketExtension> getContents()
+    {
+        return getChildExtensionsOfType(ContentPacketExtension.class);
+    }
+
+    /**
+     * Sets the contents of this group. For each content from given
+     * <tt>contents</tt>list only it's name is being preserved.
+     *
+     * @param contents the contents of this group.
+     */
+    public void addContents(List<ContentPacketExtension> contents)
+    {
+        for (ContentPacketExtension content : contents)
+        {
+            ContentPacketExtension copy = new ContentPacketExtension();
+
+            copy.setName(content.getName());
+
+            addChildExtension(copy);
+        }
+    }
+}

src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/JingleIQProvider.java

@@ -78,6 +78,13 @@ public JingleIQProvider()
             new DefaultPacketExtensionProvider
                 <CryptoPacketExtension>(CryptoPacketExtension.class));
 
+        // <group/> provider
+        providerManager.addExtensionProvider(
+            GroupPacketExtension.ELEMENT_NAME,
+            GroupPacketExtension.NAMESPACE,
+            new DefaultPacketExtensionProvider
+                <GroupPacketExtension>(GroupPacketExtension.class));
+
         //ice-udp transport
         providerManager.addExtensionProvider(
             IceUdpTransportPacketExtension.ELEMENT_NAME,