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Diffstat (limited to 'java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java')
-rw-r--r--java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java262
1 files changed, 167 insertions, 95 deletions
diff --git a/java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java b/java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java
index 9c9e913cd3..aea25a403b 100644
--- a/java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java
+++ b/java/newclient/src/main/java/org/apache/qpid/nclient/amqp/AMQPConnection.java
@@ -37,14 +37,14 @@ import org.apache.qpid.framing.ConnectionStartBody;
import org.apache.qpid.framing.ConnectionStartOkBody;
import org.apache.qpid.framing.ConnectionTuneBody;
import org.apache.qpid.framing.ConnectionTuneOkBody;
+import org.apache.qpid.nclient.amqp.event.AMQPMethodEvent;
+import org.apache.qpid.nclient.amqp.event.AMQPMethodListener;
import org.apache.qpid.nclient.amqp.state.AMQPState;
import org.apache.qpid.nclient.amqp.state.AMQPStateMachine;
import org.apache.qpid.nclient.config.ClientConfiguration;
import org.apache.qpid.nclient.core.AMQPException;
import org.apache.qpid.nclient.core.Phase;
import org.apache.qpid.nclient.core.QpidConstants;
-import org.apache.qpid.nclient.model.AMQPMethodEvent;
-import org.apache.qpid.nclient.model.AMQPMethodListener;
import org.apache.qpid.nclient.transport.TransportConnection;
import org.apache.qpid.nclient.util.AMQPValidator;
@@ -65,9 +65,8 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
private AMQPState _currentState;
- private final AMQPState[] _validCloseStates = new AMQPState[] { AMQPState.CONNECTION_NOT_STARTED,
- AMQPState.CONNECTION_NOT_SECURE, AMQPState.CONNECTION_NOT_TUNED, AMQPState.CONNECTION_NOT_OPENED,
- AMQPState.CONNECTION_OPEN, };
+ private final AMQPState[] _validCloseStates = new AMQPState[] { AMQPState.CONNECTION_NOT_STARTED, AMQPState.CONNECTION_NOT_SECURE,
+ AMQPState.CONNECTION_NOT_TUNED, AMQPState.CONNECTION_NOT_OPENED, AMQPState.CONNECTION_OPEN, };
// The wait period until a server sends a respond
private long _serverTimeOut = 1000;
@@ -93,8 +92,10 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
private ConnectionOpenOkBody _connectionOpenOkBody;
private ConnectionCloseOkBody _connectionCloseOkBody;
+
+ private ConnectionCloseBody _connectionCloseBody;
- public AMQPConnection(TransportConnection connection)
+ protected AMQPConnection(TransportConnection connection)
{
_connection = connection;
_currentState = AMQPState.CONNECTION_UNDEFINED;
@@ -102,12 +103,14 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
}
/**
- * ------------------------------------------- API Methods --------------------------------------------
- */
+ * -------------------------------------------
+ * API Methods
+ * --------------------------------------------
+ */
/**
- * Opens the TCP connection and let the formalities begin.
- */
+ * Opens the TCP connection and let the formalities begin.
+ */
public ConnectionStartBody openTCPConnection() throws AMQPException
{
_lock.lock();
@@ -119,15 +122,17 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
_phase = _connection.connect();
// waiting for ConnectionStartBody or error in connection
- _connectionNotStarted.await(_serverTimeOut, TimeUnit.MILLISECONDS);
- AMQPValidator.throwExceptionOnNull(_connectionStartBody,
- "The broker didn't send the ConnectionStartBody in time");
+ //_connectionNotStarted.await(_serverTimeOut, TimeUnit.MILLISECONDS);
+ _connectionNotStarted.await();
+
+ checkIfConnectionClosed();
+ AMQPValidator.throwExceptionOnNull(_connectionStartBody, "The broker didn't send the ConnectionStartBody in time");
_currentState = AMQPState.CONNECTION_NOT_STARTED;
return _connectionStartBody;
}
- catch (Exception e)
+ catch (InterruptedException e)
{
- throw new AMQPException("XXX");
+ throw new AMQPException("Error opening connection to broker", e);
}
finally
{
@@ -135,25 +140,43 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
}
}
- public ConnectionSecureBody startOk(ConnectionStartOkBody connectionStartOkBody) throws AMQPException
+ /**
+ * The current java broker implementation can send a connection tune body
+ * as a response to the startOk. Not sure if that is the correct behaviour.
+ */
+ public AMQMethodBody startOk(ConnectionStartOkBody connectionStartOkBody) throws AMQPException
{
_lock.lock();
try
{
_connectionSecureBody = null;
- checkIfValidStateTransition(AMQPState.CONNECTION_NOT_STARTED, _currentState,
- AMQPState.CONNECTION_NOT_SECURE);
+ checkIfValidStateTransition(AMQPState.CONNECTION_NOT_STARTED, _currentState, AMQPState.CONNECTION_NOT_SECURE);
AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectionStartOkBody, _correlationId);
_phase.messageSent(msg);
- _connectionNotSecure.await(_serverTimeOut, TimeUnit.MILLISECONDS);
- AMQPValidator.throwExceptionOnNull(_connectionSecureBody,
- "The broker didn't send the ConnectionSecureBody in time");
- _currentState = AMQPState.CONNECTION_NOT_SECURE;
- return _connectionSecureBody;
+ //_connectionNotSecure.await(_serverTimeOut, TimeUnit.MILLISECONDS);
+ _connectionNotSecure.await();
+ //AMQPValidator.throwExceptionOnNull(_connectionSecureBody, "The broker didn't send the ConnectionSecureBody in time");
+ //_currentState = AMQPState.CONNECTION_NOT_SECURE;
+
+ checkIfConnectionClosed();
+ if (_connectionTuneBody != null)
+ {
+ _currentState = AMQPState.CONNECTION_NOT_TUNED;
+ return _connectionTuneBody;
+ }
+ else if (_connectionSecureBody != null)
+ { // oops the server sent another challenge
+ _currentState = AMQPState.CONNECTION_NOT_SECURE;
+ return _connectionSecureBody;
+ }
+ else
+ {
+ throw new AMQPException("The broker didn't send the ConnectionTuneBody or ConnectionSecureBody in time");
+ }
}
- catch (Exception e)
+ catch (InterruptedException e)
{
- throw new AMQPException("XXX");
+ throw new AMQPException("Error in connection.startOk", e);
}
finally
{
@@ -162,9 +185,9 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
}
/**
- * The server will verify the response contained in the secureOK body and send a ConnectionTuneBody or it could
- * issue a new challenge
- */
+ * The server will verify the response contained in the secureOK body and send a ConnectionTuneBody or it could
+ * issue a new challenge
+ */
public AMQMethodBody secureOk(ConnectionSecureOkBody connectionSecureOkBody) throws AMQPException
{
_lock.lock();
@@ -173,11 +196,15 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
_connectionTuneBody = null;
_connectionSecureBody = null;
checkIfValidStateTransition(AMQPState.CONNECTION_NOT_SECURE, _currentState, AMQPState.CONNECTION_NOT_TUNED);
+
_connectionSecureBody = null; // The server could send a fresh challenge
- AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectionSecureOkBody,
- _correlationId);
+ AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectionSecureOkBody, _correlationId);
_phase.messageSent(msg);
- _connectionNotTuned.await(_serverTimeOut, TimeUnit.MILLISECONDS);
+
+ //_connectionNotTuned.await(_serverTimeOut, TimeUnit.MILLISECONDS);
+ _connectionNotTuned.await();
+ checkIfConnectionClosed();
+
if (_connectionTuneBody != null)
{
_currentState = AMQPState.CONNECTION_NOT_TUNED;
@@ -193,9 +220,9 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
throw new AMQPException("The broker didn't send the ConnectionTuneBody or ConnectionSecureBody in time");
}
}
- catch (Exception e)
+ catch (InterruptedException e)
{
- throw new AMQPException("XXX");
+ throw new AMQPException("Error in connection.secureOk", e);
}
finally
{
@@ -214,10 +241,6 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
_phase.messageSent(msg);
_currentState = AMQPState.CONNECTION_NOT_OPENED;
}
- catch (Exception e)
- {
- throw new AMQPException("XXX");
- }
finally
{
_lock.unlock();
@@ -229,20 +252,26 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
_lock.lock();
try
{
+ // If the broker sends a connection close due to an error with the
+ // Connection tune ok, then this call will verify that
+ checkIfConnectionClosed();
+
_connectionOpenOkBody = null;
checkIfValidStateTransition(AMQPState.CONNECTION_NOT_OPENED, _currentState, AMQPState.CONNECTION_OPEN);
- AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectionOpenBody,
- QpidConstants.EMPTY_CORRELATION_ID);
+ AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectionOpenBody, QpidConstants.EMPTY_CORRELATION_ID);
_phase.messageSent(msg);
- _connectionNotOpened.await(_serverTimeOut, TimeUnit.MILLISECONDS);
- AMQPValidator.throwExceptionOnNull(_connectionOpenOkBody,
- "The broker didn't send the ConnectionOpenOkBody in time");
+
+ //_connectionNotOpened.await(_serverTimeOut, TimeUnit.MILLISECONDS);
+ _connectionNotOpened.await();
+
+ checkIfConnectionClosed();
+ AMQPValidator.throwExceptionOnNull(_connectionOpenOkBody, "The broker didn't send the ConnectionOpenOkBody in time");
_currentState = AMQPState.CONNECTION_OPEN;
return _connectionOpenOkBody;
}
- catch (Exception e)
+ catch (InterruptedException e)
{
- throw new AMQPException("XXX");
+ throw new AMQPException("Error in connection.open", e);
}
finally
{
@@ -257,18 +286,16 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
{
_connectionCloseOkBody = null;
checkIfValidStateTransition(_validCloseStates, _currentState, AMQPState.CONNECTION_CLOSED);
- AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectioncloseBody,
- QpidConstants.EMPTY_CORRELATION_ID);
+ AMQPMethodEvent msg = new AMQPMethodEvent(QpidConstants.CHANNEL_ZERO, connectioncloseBody, QpidConstants.EMPTY_CORRELATION_ID);
_phase.messageSent(msg);
_connectionNotClosed.await(_serverTimeOut, TimeUnit.MILLISECONDS);
- AMQPValidator.throwExceptionOnNull(_connectionCloseOkBody,
- "The broker didn't send the ConnectionCloseOkBody in time");
+ AMQPValidator.throwExceptionOnNull(_connectionCloseOkBody, "The broker didn't send the ConnectionCloseOkBody in time");
_currentState = AMQPState.CONNECTION_CLOSED;
return _connectionCloseOkBody;
}
- catch (Exception e)
+ catch (InterruptedException e)
{
- throw new AMQPException("XXX");
+ throw new AMQPException("Error in connection.close", e);
}
finally
{
@@ -277,72 +304,117 @@ public class AMQPConnection extends AMQPStateMachine implements AMQPMethodListen
}
/**
- * ------------------------------------------- AMQMethodListener methods
- * --------------------------------------------
- */
+ * ------------------------------------------- AMQMethodListener methods
+ * --------------------------------------------
+ */
public <B extends AMQMethodBody> boolean methodReceived(AMQPMethodEvent<B> evt) throws AMQPException
{
- _correlationId = evt.getCorrelationId();
+ _lock.lock();
+ try
+ {
+ _correlationId = evt.getCorrelationId();
- if (evt.getMethod() instanceof ConnectionStartBody)
+ if (evt.getMethod() instanceof ConnectionStartBody)
+ {
+ _connectionStartBody = (ConnectionStartBody) evt.getMethod();
+ _connectionNotStarted.signalAll();
+ return true;
+ }
+ else if (evt.getMethod() instanceof ConnectionSecureBody)
+ {
+ _connectionSecureBody = (ConnectionSecureBody) evt.getMethod();
+ _connectionNotSecure.signal();
+ _connectionNotTuned.signal(); // in case the server has sent another chanllenge
+ return true;
+ }
+ else if (evt.getMethod() instanceof ConnectionTuneBody)
+ {
+ _connectionTuneBody = (ConnectionTuneBody) evt.getMethod();
+ _connectionNotSecure.signal(); //if the server does the auth with ConntectionStartOk
+ _connectionNotTuned.signal();
+ return true;
+ }
+ else if (evt.getMethod() instanceof ConnectionOpenOkBody)
+ {
+ _connectionOpenOkBody = (ConnectionOpenOkBody) evt.getMethod();
+ _connectionNotOpened.signal();
+ return true;
+ }
+ else if (evt.getMethod() instanceof ConnectionCloseOkBody)
+ {
+ _connectionCloseOkBody = (ConnectionCloseOkBody) evt.getMethod();
+ _connectionNotClosed.signal();
+ return true;
+ }
+ else if (evt.getMethod() instanceof ConnectionCloseBody)
+ {
+ _connectionCloseBody = (ConnectionCloseBody)evt.getMethod();
+ // release the correct lock as u may have some conditions waiting.
+ // while an error occured and the broker has sent a close.
+ releaseLocks();
+ handleClose();
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ finally
{
- _connectionStartBody = (ConnectionStartBody) evt.getMethod();
- _connectionNotStarted.signal();
- return true;
+ _lock.unlock();
}
- else if (evt.getMethod() instanceof ConnectionSecureBody)
+ }
+
+ private void handleClose() throws AMQPException
+ {
+ try
+ {
+ _currentState = AMQPState.CONNECTION_CLOSING;
+ // do the required cleanup and send a ConnectionCloseOkBody
+ }
+ catch (Exception e)
{
- _connectionSecureBody = (ConnectionSecureBody) evt.getMethod();
- _connectionNotSecure.signal();
- _connectionNotTuned.signal(); // in case the server has sent another chanllenge
- return true;
+ throw new AMQPException("Error handling connection.close from broker", e);
}
- else if (evt.getMethod() instanceof ConnectionTuneBody)
+ }
+
+ private void checkIfConnectionClosed()throws AMQPException
+ {
+ if (_connectionCloseBody != null)
{
- _connectionTuneBody = (ConnectionTuneBody) evt.getMethod();
- _connectionNotTuned.signal();
- return true;
+ String error = "Broker has closed connection due to : " + _connectionCloseBody.getReplyText() +
+ " with reply code (" + _connectionCloseBody.getReplyCode() + ") " +
+ "caused by class " + _connectionCloseBody.getClassId() +
+ " and method " + _connectionCloseBody.getMethod();
+
+ throw new AMQPException(error);
}
- else if (evt.getMethod() instanceof ConnectionOpenOkBody)
+ }
+
+ private void releaseLocks()
+ {
+ if(_currentState == AMQPState.CONNECTION_NOT_OPENED)
{
- _connectionOpenOkBody = (ConnectionOpenOkBody) evt.getMethod();
_connectionNotOpened.signal();
- return true;
}
- else if (evt.getMethod() instanceof ConnectionCloseOkBody)
+ else if(_currentState == AMQPState.CONNECTION_UNDEFINED)
{
- _connectionCloseOkBody = (ConnectionCloseOkBody) evt.getMethod();
- _connectionNotClosed.signal();
- return true;
+ _connectionNotStarted.signal();
}
- else if (evt.getMethod() instanceof ConnectionCloseBody)
+ else if(_currentState == AMQPState.CONNECTION_NOT_STARTED)
{
- handleClose();
- return true;
+ _connectionNotSecure.signal();
}
- else
+ else if(_currentState == AMQPState.CONNECTION_NOT_SECURE)
{
- return false;
+ _connectionNotTuned.signal();
}
}
- public void handleClose() throws AMQPException
+ public Phase getPhasePipe()
{
- _lock.lock();
- try
- {
- checkIfValidStateTransition(AMQPState.CONNECTION_OPEN, _currentState, AMQPState.CONNECTION_CLOSING);
- _currentState = AMQPState.CONNECTION_CLOSING;
- // do the required cleanup and send a ConnectionCloseOkBody
- }
- catch (Exception e)
- {
- throw new AMQPException("XXX");
- }
- finally
- {
- _lock.unlock();
- }
+ return _phase;
}
} \ No newline at end of file