EXTERNAL is easy (on the client side)

Author: Simon MacMullen

src/com/rabbitmq/client/ConnectionFactory.java

@@ -45,6 +45,7 @@
 import javax.net.ssl.TrustManager;
 
 import com.rabbitmq.client.impl.AMQConnection;
+import com.rabbitmq.client.impl.ExternalMechanismFactory;
 import com.rabbitmq.client.impl.FrameHandler;
 import com.rabbitmq.client.impl.PlainMechanismFactory;
 import com.rabbitmq.client.impl.SocketFrameHandler;
@@ -88,7 +89,7 @@ public class ConnectionFactory implements Cloneable {
 
     /** The default list of authentication mechanisms to use */
     public static final AuthMechanismFactory[] DEFAULT_AUTH_MECHANISMS =
-        new AuthMechanismFactory[] { new PlainMechanismFactory() };
+        new AuthMechanismFactory[] { new ExternalMechanismFactory() };
 
     /**
      * The default SSL protocol (currently "SSLv3").

src/com/rabbitmq/client/impl/ExternalMechanism.java

@@ -0,0 +1,13 @@
+package com.rabbitmq.client.impl;
+
+import com.rabbitmq.client.AuthMechanism;
+import com.rabbitmq.client.ConnectionFactory;
+
+/**
+ * The EXTERNAL auth mechanism
+ */
+public class ExternalMechanism implements AuthMechanism {
+    public LongString handleChallenge(LongString challenge, ConnectionFactory factory) {
+        return LongStringHelper.asLongString("");
+    }
+}

src/com/rabbitmq/client/impl/ExternalMechanismFactory.java

@@ -0,0 +1,17 @@
+package com.rabbitmq.client.impl;
+
+import com.rabbitmq.client.AuthMechanism;
+import com.rabbitmq.client.AuthMechanismFactory;
+
+/**
+ *
+ */
+public class ExternalMechanismFactory implements AuthMechanismFactory {
+    public AuthMechanism getInstance() {
+        return new ExternalMechanism();
+    }
+
+    public String getName() {
+        return "EXTERNAL";
+    }
+}