// To clone a message from a BytesMessage which is NOT BytesMessageImpl
// Changing order of parameter to NOT accidentally clash with the constructor above.
// This is midly confusing, but helps a lot in preventing accidental bugs !
public BytesMessageImpl(BytesMessage message, SessionImpl session) throws JMSException {
super((Message) message, session);
if (message instanceof BytesMessageImpl) {
throw new JMSException(
"Coding bug - should use this constructor ONLY for non " + "BytesMessageImpl messages");
}
// copy the bytes ...
final byte[] data;
{
final long length = message.getBodyLength();
if (length < 0 || length >= Integer.MAX_VALUE)
throw new JMSException("Unreasonably " + "large value for body Length : " + length);
data = new byte[(int) length];
int read = 0;
while (read < length) {
int sz = message.readBytes(data, read);
read += sz;
}
}
try {
this.writeOnlyMessage = new WriteOnlyMessage(data);
} catch (IOException e) {
JMSException ex =
new JMSException("Unable to clone/copy input message " + message + " .. " + e);
ex.setLinkedException(e);
throw ex;
}
this.readOnlyMessage = null;
this.readMode = true;
}
@Override
public void reset() throws JMSException {
if (this.readMode) return;
try {
this.readOnlyMessage = new ReadOnlyMessage(writeOnlyMessage.getPayloadAsBytes());
} catch (IOException e) {
JMSException ex =
new JMSException("Unable to convert write-only message to read-only message .. " + e);
ex.setLinkedException(e);
throw ex;
}
this.readMode = true;
this.writeOnlyMessage = null;
}
@Override
public PubSubProtocol.Message generateHedwigMessage() throws JMSException {
PubSubProtocol.Message.Builder builder = PubSubProtocol.Message.newBuilder();
super.populateBuilderWithHeaders(builder);
// Now set body and type.
try {
builder.setBody(ByteString.copyFrom(getPayloadData()));
} catch (IOException e) {
JMSException ex = new JMSException("Unable to read message data .. " + e);
ex.setLinkedException(e);
throw ex;
}
return builder.build();
}
public void unsubscribe(final String s) throws JMSException {
checkClosed();
checkNotQueueSession();
Target target = new Target();
target.setAddress(UUID.randomUUID().toString());
try {
Receiver receiver =
new Receiver(
getClientSession(),
s,
target,
null,
org.apache.qpid.amqp_1_0.client.AcknowledgeMode.ALO,
false);
final org.apache.qpid.amqp_1_0.type.Source receiverSource = receiver.getSource();
if (receiverSource instanceof Source) {
Source source = (Source) receiverSource;
receiver.close();
receiver =
new Receiver(
getClientSession(),
s,
target,
source,
org.apache.qpid.amqp_1_0.client.AcknowledgeMode.ALO,
false);
}
receiver.close();
} catch (AmqpErrorException e) {
if (e.getError().getCondition() == AmqpError.NOT_FOUND) {
throw new InvalidDestinationException(s);
} else {
JMSException jmsException = new JMSException(e.getMessage());
jmsException.setLinkedException(e);
throw jmsException;
}
}
// TODO
}
// To clone a message
public BytesMessageImpl(
SessionImpl session, BytesMessageImpl message, String sourceTopicName, String subscriberId)
throws JMSException {
super(session, (MessageImpl) message, sourceTopicName, subscriberId);
try {
if (message.readMode) {
this.readOnlyMessage = new ReadOnlyMessage(message.readOnlyMessage.getDataCopy());
this.writeOnlyMessage = null;
} else {
this.readOnlyMessage = null;
this.writeOnlyMessage = new WriteOnlyMessage(message.writeOnlyMessage.getPayloadAsBytes());
}
} catch (IOException e) {
JMSException ex =
new JMSException("Unable to clone/copy input message " + message + " .. " + e);
ex.setLinkedException(e);
throw ex;
}
this.readMode = message.readMode;
}
public static AMQTopic createDurableTopic(
Topic topic, String subscriptionName, AMQConnection connection) throws JMSException {
if (topic instanceof AMQDestination && topic instanceof javax.jms.Topic) {
AMQDestination qpidTopic = (AMQDestination) topic;
if (qpidTopic.getDestSyntax() == DestSyntax.ADDR) {
try {
AMQTopic t = new AMQTopic(qpidTopic.getAddress());
AMQShortString queueName = getDurableTopicQueueName(subscriptionName, connection);
// link is never null if dest was created using an address string.
t.getLink().setName(queueName.asString());
t.getSourceNode().setAutoDelete(false);
t.getSourceNode().setDurable(true);
// The legacy fields are also populated just in case.
t.setQueueName(queueName);
t.setAutoDelete(false);
t.setDurable(true);
return t;
} catch (Exception e) {
JMSException ex = new JMSException("Error creating durable topic");
ex.initCause(e);
ex.setLinkedException(e);
throw ex;
}
} else {
return new AMQTopic(
qpidTopic.getExchangeName(),
qpidTopic.getRoutingKey(),
false,
getDurableTopicQueueName(subscriptionName, connection),
true);
}
} else {
throw new InvalidDestinationException(
"The destination object used is not from this provider or of type javax.jms.Topic");
}
}
