QPID-3277: AMQCallbackHandler improvements. Refactor AMQCallbackHandler to accept ConnectionURL in place of AMQProtocolSession (improved information hiding, ease ability to write good unit tests). Remove unused protected constructor from AMQConnection and MockAMQConnection.

Applied patch from  Keith Wall <keith.wall@gmail.com>

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1127939 13f79535-47bb-0310-9956-ffa450edef68

6 files changed, 53 insertions, 66 deletions

diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/AMQConnection.java b/qpid/java/client/src/main/java/org/apache/qpid/client/AMQConnection.java
index ab59fee020..94a55ef52c 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/AMQConnection.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/AMQConnection.java
@@ -111,7 +111,7 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
     /** Maps from session id (Integer) to AMQSession instance */
     private final ChannelToSessionMap _sessions = new ChannelToSessionMap();
 
-    private String _clientName;
+    private final String _clientName;
 
     /** The user name to use for authentication */
     private String _username;
@@ -126,7 +126,7 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
 
     private ConnectionListener _connectionListener;
 
-    private ConnectionURL _connectionURL;
+    private final ConnectionURL _connectionURL;
 
     /**
      * Whether this connection is started, i.e. whether messages are flowing to consumers. It has no meaning for message
@@ -257,6 +257,11 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
      */
     public AMQConnection(ConnectionURL connectionURL, SSLConfiguration sslConfig) throws AMQException
     {
+        if (connectionURL == null)
+        {
+            throw new IllegalArgumentException("Connection must be specified");
+        }
+        
         // set this connection maxPrefetch
         if (connectionURL.getOption(ConnectionURL.OPTIONS_MAXPREFETCH) != null)
         {
@@ -264,7 +269,7 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
         else
         {
-            // use the defaul value set for all connections
+            // use the default value set for all connections
             _maxPrefetch = Integer.parseInt(System.getProperties().getProperty(ClientProperties.MAX_PREFETCH_PROP_NAME,
                     ClientProperties.MAX_PREFETCH_DEFAULT));
         }
@@ -278,7 +283,7 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
         else
         {
-            // use the defaul value set for all connections
+            // use the default value set for all connections
             _syncPersistence = Boolean.getBoolean(ClientProperties.SYNC_PERSISTENT_PROP_NAME);
             if (_syncPersistence)
             {
@@ -293,7 +298,7 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
         else
         {
-            // use the defaul value set for all connections
+            // use the default value set for all connections
             _syncAck = Boolean.getBoolean(ClientProperties.SYNC_ACK_PROP_NAME);
         }
 
@@ -346,11 +351,6 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
 
         _sslConfiguration = sslConfig;
-        if (connectionURL == null)
-        {
-            throw new IllegalArgumentException("Connection must be specified");
-        }
-
         _connectionURL = connectionURL;
 
         _clientName = connectionURL.getClientName();
@@ -535,14 +535,6 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
     }
 
-    protected AMQConnection(String username, String password, String clientName, String virtualHost)
-    {
-        _clientName = clientName;
-        _username = username;
-        _password = password;
-        setVirtualHost(virtualHost);
-    }
-
     private void setVirtualHost(String virtualHost)
     {
         if (virtualHost != null && virtualHost.startsWith("/"))
@@ -696,20 +688,6 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         }
     }
 
-    private void reopenChannel(int channelId, int prefetchHigh, int prefetchLow, boolean transacted)
-            throws AMQException, FailoverException
-    {
-        try
-        {
-            createChannelOverWire(channelId, prefetchHigh, prefetchLow, transacted);
-        }
-        catch (AMQException e)
-        {
-            deregisterSession(channelId);
-            throw new AMQException(null, "Error reopening channel " + channelId + " after failover: " + e, e);
-        }
-    }
-
     public void setFailoverPolicy(FailoverPolicy policy)
     {
         _failoverPolicy = policy;
@@ -1372,6 +1350,20 @@ public class AMQConnection extends Closeable implements Connection, QueueConnect
         return buf.toString();
     }
 
+    /**
+     * Returns connection url. 
+     * @return connection url
+     */
+    public ConnectionURL getConnectionURL()
+    {
+        return _connectionURL;
+    }
+    
+    /**
+     * Returns stringified connection url.   This url is suitable only for display
+     * as {@link AMQConnectionURL#toString()} converts any password to asterisks. 
+     * @return connection url
+     */
     public String toURL()
     {
         return _connectionURL.toString();
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/handler/ConnectionStartMethodHandler.java b/qpid/java/client/src/main/java/org/apache/qpid/client/handler/ConnectionStartMethodHandler.java
index c81ad6422f..2b49bb8f81 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/handler/ConnectionStartMethodHandler.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/handler/ConnectionStartMethodHandler.java
@@ -226,7 +226,7 @@ public class ConnectionStartMethodHandler implements StateAwareMethodListener<Co
         {
             Object instance = mechanismClass.newInstance();
             AMQCallbackHandler cbh = (AMQCallbackHandler) instance;
-            cbh.initialise(protocolSession);
+            cbh.initialise(protocolSession.getAMQConnection().getConnectionURL());
 
             return cbh;
         }
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/protocol/AMQProtocolSession.java b/qpid/java/client/src/main/java/org/apache/qpid/client/protocol/AMQProtocolSession.java
index 7976760696..5b7d272506 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/protocol/AMQProtocolSession.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/protocol/AMQProtocolSession.java
@@ -148,16 +148,6 @@ public class AMQProtocolSession implements AMQVersionAwareProtocolSession
         return getAMQConnection().getVirtualHost();
     }
 
-    public String getUsername()
-    {
-        return getAMQConnection().getUsername();
-    }
-
-    public String getPassword()
-    {
-        return getAMQConnection().getPassword();
-    }
-
     public SaslClient getSaslClient()
     {
         return _saslClient;
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/security/AMQCallbackHandler.java b/qpid/java/client/src/main/java/org/apache/qpid/client/security/AMQCallbackHandler.java
index fbca444208..67dd1a58b6 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/security/AMQCallbackHandler.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/security/AMQCallbackHandler.java
@@ -22,9 +22,9 @@ package org.apache.qpid.client.security;
 
 import javax.security.auth.callback.CallbackHandler;
 
-import org.apache.qpid.client.protocol.AMQProtocolSession;
+import org.apache.qpid.jms.ConnectionURL;
 
 public interface AMQCallbackHandler extends CallbackHandler
 {
-    void initialise(AMQProtocolSession protocolSession);    
+    void initialise(ConnectionURL connectionURL);    
 }
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java
index 66176dac3c..6ec83f0a23 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernameHashedPasswordCallbackHandler.java
@@ -20,30 +20,29 @@
  */
 package org.apache.qpid.client.security;
 
-import org.apache.qpid.client.protocol.AMQProtocolSession;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 
 import javax.security.auth.callback.Callback;
 import javax.security.auth.callback.NameCallback;
 import javax.security.auth.callback.PasswordCallback;
 import javax.security.auth.callback.UnsupportedCallbackException;
 
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
+import org.apache.qpid.jms.ConnectionURL;
 
 public class UsernameHashedPasswordCallbackHandler implements AMQCallbackHandler
 {
-    private static final Logger _logger = LoggerFactory.getLogger(UsernameHashedPasswordCallbackHandler.class);
+    private ConnectionURL _connectionURL;
 
-    private AMQProtocolSession _protocolSession;
-
-    public void initialise(AMQProtocolSession protocolSession)
+    /**
+     * @see org.apache.qpid.client.security.AMQCallbackHandler#initialise(org.apache.qpid.jms.ConnectionURL)
+     */
+    @Override
+    public void initialise(ConnectionURL connectionURL)
     {
-        _protocolSession = protocolSession;
+        _connectionURL = connectionURL;
     }
 
     public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException
@@ -53,13 +52,13 @@ public class UsernameHashedPasswordCallbackHandler implements AMQCallbackHandler
             Callback cb = callbacks[i];
             if (cb instanceof NameCallback)
             {
-                ((NameCallback) cb).setName(_protocolSession.getUsername());
+                ((NameCallback) cb).setName(_connectionURL.getUsername());
             }
             else if (cb instanceof PasswordCallback)
             {
                 try
                 {
-                    ((PasswordCallback) cb).setPassword(getHash(_protocolSession.getPassword()));
+                    ((PasswordCallback) cb).setPassword(getHash(_connectionURL.getPassword()));
                 }
                 catch (NoSuchAlgorithmException e)
                 {
@@ -99,4 +98,5 @@ public class UsernameHashedPasswordCallbackHandler implements AMQCallbackHandler
 
         return hash;
     }
+
 }
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernamePasswordCallbackHandler.java b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernamePasswordCallbackHandler.java
index c50c62710f..ad088722c8 100644
--- a/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernamePasswordCallbackHandler.java
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/security/UsernamePasswordCallbackHandler.java
@@ -27,15 +27,19 @@ import javax.security.auth.callback.NameCallback;
 import javax.security.auth.callback.PasswordCallback;
 import javax.security.auth.callback.UnsupportedCallbackException;
 
-import org.apache.qpid.client.protocol.AMQProtocolSession;
+import org.apache.qpid.jms.ConnectionURL;
 
 public class UsernamePasswordCallbackHandler implements AMQCallbackHandler
 {
-    private AMQProtocolSession _protocolSession;
+    private ConnectionURL _connectionURL;
 
-    public void initialise(AMQProtocolSession protocolSession)
+    /**
+     * @see org.apache.qpid.client.security.AMQCallbackHandler#initialise(org.apache.qpid.jms.ConnectionURL)
+     */
+    @Override
+    public void initialise(final ConnectionURL connectionURL)
     {
-        _protocolSession = protocolSession;
+        _connectionURL = connectionURL;
     }
 
     public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException
@@ -45,11 +49,11 @@ public class UsernamePasswordCallbackHandler implements AMQCallbackHandler
             Callback cb = callbacks[i];
             if (cb instanceof NameCallback)
             {
-                ((NameCallback)cb).setName(_protocolSession.getUsername());
+                ((NameCallback)cb).setName(_connectionURL.getUsername());
             }
             else if (cb instanceof PasswordCallback)
             {
-                ((PasswordCallback)cb).setPassword(_protocolSession.getPassword().toCharArray());
+                ((PasswordCallback)cb).setPassword(_connectionURL.getPassword().toCharArray());
             }
             else
             {
@@ -57,4 +61,5 @@ public class UsernamePasswordCallbackHandler implements AMQCallbackHandler
             }
         }
     }
+
 }