Remove Packet.ID_NOT_AVAILABLE

smack-core/src/main/java/org/jivesoftware/smack/packet/Message.java

@@ -60,6 +60,7 @@ public class Message extends Packet {
      * Creates a new, "normal" message.
      */
     public Message() {
+        super();
     }
 
     /**
@@ -68,6 +69,7 @@ public class Message extends Packet {
      * @param to the recipient of the message.
      */
     public Message(String to) {
+        super();
         setTo(to);
     }
 
@@ -78,11 +80,9 @@ public class Message extends Packet {
      * @param type the message type.
      */
     public Message(String to, Type type) {
+        super();
         setTo(to);
-        
-        if (type != null) {
-            this.type = type;
-        }
+        setType(type);
     }
 
     /**

smack-core/src/main/java/org/jivesoftware/smack/packet/Packet.java

@@ -26,6 +26,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.atomic.AtomicLong;
 
 /**
  * Base class for XMPP packets. Every packet has a unique ID (which is automatically
@@ -41,14 +42,7 @@ public abstract class Packet {
     private static String DEFAULT_XML_NS = null;
 
     /**
-     * Constant used as packetID to indicate that a packet has no id. To indicate that a packet
-     * has no id set this constant as the packet's id. When the packet is asked for its id the
-     * answer will be <tt>null</tt>.
-     */
-    public static final String ID_NOT_AVAILABLE = "ID_NOT_AVAILABLE";
-
-    /**
-     * A prefix helps to make sure that ID's are unique across mutliple instances.
+     * A prefix helps to make sure that ID's are unique across multiple instances.
      */
     private static String prefix = StringUtils.randomString(5) + "-";
 
@@ -56,20 +50,10 @@ public abstract class Packet {
      * Keeps track of the current increment, which is appended to the prefix to
      * forum a unique ID.
      */
-    private static long id = 0;
+    private static AtomicLong id = new AtomicLong();
 
     private String xmlns = DEFAULT_XML_NS;
 
-    /**
-     * Returns the next unique id. Each id made up of a short alphanumeric
-     * prefix along with a unique numeric value.
-     *
-     * @return the next id.
-     */
-    public static synchronized String nextID() {
-        return prefix + Long.toString(id++);
-    }
-
     public static void setDefaultXmlns(String defaultXmlns) {
         DEFAULT_XML_NS = defaultXmlns;
     }
@@ -83,6 +67,11 @@ public abstract class Packet {
     private XMPPError error = null;
 
     public Packet() {
+        this(prefix + Long.toString(id.incrementAndGet()));
+    }
+
+    public Packet(String packetID) {
+        setPacketID(packetID);
     }
 
     public Packet(Packet p) {
@@ -105,13 +94,6 @@ public abstract class Packet {
      * @return the packet's unique ID or <tt>null</tt> if the packet's id is not available.
      */
     public String getPacketID() {
-        if (ID_NOT_AVAILABLE.equals(packetID)) {
-            return null;
-        }
-
-        if (packetID == null) {
-            packetID = nextID();
-        }
         return packetID;
     }
 

smack-core/src/main/java/org/jivesoftware/smack/packet/Presence.java

@@ -69,6 +69,7 @@ public class Presence extends Packet {
      * @param type the type.
      */
     public Presence(Type type) {
+        super();
         setType(type);
     }
 
@@ -81,6 +82,7 @@ public class Presence extends Packet {
      * @param mode the mode type for this presence update.
      */
     public Presence(Type type, String status, int priority, Mode mode) {
+        super();
         setType(type);
         setStatus(status);
         setPriority(priority);

smack-core/src/main/java/org/jivesoftware/smack/util/PacketParserUtils.java

@@ -160,8 +160,7 @@ public class PacketParserUtils {
      */
     public static Message parseMessage(XmlPullParser parser) throws Exception {
         Message message = new Message();
-        String id = parser.getAttributeValue("", "id");
-        message.setPacketID(id == null ? Packet.ID_NOT_AVAILABLE : id);
+        message.setPacketID(parser.getAttributeValue("", "id"));
         message.setTo(parser.getAttributeValue("", "to"));
         message.setFrom(parser.getAttributeValue("", "from"));
         String typeString = parser.getAttributeValue("", "type");
@@ -408,14 +407,12 @@ public class PacketParserUtils {
         Presence presence = new Presence(type);
         presence.setTo(parser.getAttributeValue("", "to"));
         presence.setFrom(parser.getAttributeValue("", "from"));
-        String id = parser.getAttributeValue("", "id");
-        presence.setPacketID(id == null ? Packet.ID_NOT_AVAILABLE : id);
+        presence.setPacketID(parser.getAttributeValue("", "id"));
 
         String language = getLanguageAttribute(parser);
         if (language != null && !"".equals(language.trim())) {
         	presence.setLanguage(language);
         }
-        presence.setPacketID(id == null ? Packet.ID_NOT_AVAILABLE : id);
 
         // Parse sub-elements
         boolean done = false;

smack-core/src/test/java/org/jivesoftware/smack/packet/MessageTest.java

@@ -52,7 +52,7 @@ public class MessageTest {
         String control = controlBuilder.toString();
 
         Message messageTypeInConstructor = new Message(null, Message.Type.chat);
-        messageTypeInConstructor.setPacketID(Packet.ID_NOT_AVAILABLE);
+        messageTypeInConstructor.setPacketID(null);
         assertEquals(type, messageTypeInConstructor.getType());
         assertXMLEqual(control, messageTypeInConstructor.toXML().toString());
 
@@ -257,7 +257,7 @@ public class MessageTest {
 
     private static Message getNewMessage() {
         Message message = new Message();
-        message.setPacketID(Packet.ID_NOT_AVAILABLE);
+        message.setPacketID(null);
         return message;
     }
 }

smack-core/src/test/java/org/jivesoftware/smack/packet/PresenceTest.java

@@ -47,7 +47,7 @@ public class PresenceTest {
         String control = controlBuilder.toString();
 
         Presence presenceTypeInConstructor = new Presence(type);
-        presenceTypeInConstructor.setPacketID(Packet.ID_NOT_AVAILABLE);
+        presenceTypeInConstructor.setPacketID(null);
         assertEquals(type, presenceTypeInConstructor.getType());
         assertXMLEqual(control, presenceTypeInConstructor.toXML().toString());
 
@@ -146,7 +146,7 @@ public class PresenceTest {
 
         Presence presenceModeInConstructor = new Presence(Presence.Type.available, status, priority,
                 mode1);
-        presenceModeInConstructor.setPacketID(Packet.ID_NOT_AVAILABLE);
+        presenceModeInConstructor.setPacketID(null);
         assertEquals(mode1, presenceModeInConstructor.getMode());
         assertXMLEqual(control, presenceModeInConstructor.toXML().toString());
 
@@ -194,7 +194,7 @@ public class PresenceTest {
 
     private static Presence getNewPresence() {
         Presence presence = new Presence(Presence.Type.available);
-        presence.setPacketID(Packet.ID_NOT_AVAILABLE);
+        presence.setPacketID(null);
         return presence;
     }
 }