SMACK-361 Added support for Entity Capabilities.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_3_0@13560 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smack/packet/IQ.java

@@ -43,6 +43,14 @@ public abstract class IQ extends Packet {
 
     private Type type = Type.GET;
 
+    public IQ() {
+        super();
+    }
+
+    public IQ(IQ iq) {
+        super(iq);
+        type = iq.getType();
+    }
     /**
      * Returns the type of the IQ packet.
      *

source/org/jivesoftware/smack/packet/Packet.java

@@ -90,6 +90,22 @@ public abstract class Packet {
     private final Map<String,Object> properties = new HashMap<String, Object>();
     private XMPPError error = null;
 
+    public Packet() {
+    }
+
+    public Packet(Packet p) {
+        packetID = p.getPacketID();
+        to = p.getTo();
+        from = p.getFrom();
+        xmlns = p.xmlns;
+        error = p.error;
+
+        // Copy extensions
+        for (PacketExtension pe : p.getExtensions()) {
+            addExtension(pe);
+        }
+    }
+
     /**
      * Returns the unique ID of the packet. The returned value could be <tt>null</tt> when
      * ID_NOT_AVAILABLE was set as the packet's id.
@@ -247,14 +263,25 @@ public abstract class Packet {
     }
 
     /**
-     * Adds a packet extension to the packet.
+     * Adds a packet extension to the packet. Does nothing if extension is null.
      *
      * @param extension a packet extension.
      */
     public void addExtension(PacketExtension extension) {
+        if (extension == null) return;
         packetExtensions.add(extension);
     }
 
+    /**
+     * Adds a collection of packet extensions to the packet. Does nothing if extensions is null.
+     * 
+     * @param extensions a collection of packet extensions
+     */
+    public void addExtensions(Collection<PacketExtension> extensions) {
+        if (extensions == null) return;
+        packetExtensions.addAll(extensions);
+    }
+
     /**
      * Removes a packet extension from the packet.
      *
@@ -266,7 +293,7 @@ public abstract class Packet {
 
     /**
      * Returns the packet property with the specified name or <tt>null</tt> if the
-     * property doesn't exist. Property values that were orginally primitives will
+     * property doesn't exist. Property values that were originally primitives will
      * be returned as their object equivalent. For example, an int property will be
      * returned as an Integer, a double as a Double, etc.
      *
@@ -456,4 +483,4 @@ public abstract class Packet {
         result = 31 * result + (error != null ? error.hashCode() : 0);
         return result;
     }
-}
+}