/**
* Wait for Acknowledgement from other server. FIXME Please, not wait only for three characters,
* better control that the wait ack message is correct.
*
* @throws java.io.IOException
* @throws java.net.SocketTimeoutException
*/
protected void waitForAck() throws java.io.IOException {
try {
boolean ackReceived = false;
boolean failAckReceived = false;
ackbuf.clear();
int bytesRead = 0;
int i = soIn.read();
while ((i != -1) && (bytesRead < Constants.ACK_COMMAND.length)) {
bytesRead++;
byte d = (byte) i;
ackbuf.append(d);
if (ackbuf.doesPackageExist()) {
byte[] ackcmd = ackbuf.extractDataPackage(true).getBytes();
ackReceived =
Arrays.equals(ackcmd, org.apache.catalina.tribes.transport.Constants.ACK_DATA);
failAckReceived =
Arrays.equals(ackcmd, org.apache.catalina.tribes.transport.Constants.FAIL_ACK_DATA);
ackReceived = ackReceived || failAckReceived;
break;
}
i = soIn.read();
}
if (!ackReceived) {
if (i == -1)
throw new IOException(
sm.getString(
"IDataSender.ack.eof", getAddress(), new Integer(socket.getLocalPort())));
else
throw new IOException(
sm.getString(
"IDataSender.ack.wrong", getAddress(), new Integer(socket.getLocalPort())));
} else if (failAckReceived && getThrowOnFailedAck()) {
throw new RemoteProcessException(
"Received a failed ack:org.apache.catalina.tribes.transport.Constants.FAIL_ACK_DATA");
}
} catch (IOException x) {
String errmsg =
sm.getString(
"IDataSender.ack.missing",
getAddress(),
new Integer(socket.getLocalPort()),
new Long(getTimeout()));
if (SenderState.getSenderState(getDestination()).isReady()) {
SenderState.getSenderState(getDestination()).setSuspect();
if (log.isWarnEnabled()) log.warn(errmsg, x);
} else {
if (log.isDebugEnabled()) log.debug(errmsg, x);
}
throw x;
} finally {
ackbuf.clear();
}
}
/**
* @param destination Member[] - destination.length > 0
* @param msg Serializable - the message to send
* @param options sender options, options can trigger guarantee levels and different interceptors
* to react to the message see class documentation for the <code>Channel</code> object.<br>
* @param handler - callback object for error handling and completion notification, used when a
* message is sent asynchronously using the <code>Channel.SEND_OPTIONS_ASYNCHRONOUS</code>
* flag enabled.
* @return UniqueId - the unique Id that was assigned to this message
* @throws ChannelException - if an error occurs processing the message
* @see org.apache.catalina.tribes.Channel
*/
@Override
public UniqueId send(Member[] destination, Serializable msg, int options, ErrorHandler handler)
throws ChannelException {
if (msg == null) throw new ChannelException(sm.getString("groupChannel.nullMessage"));
XByteBuffer buffer = null;
try {
if (destination == null || destination.length == 0) {
throw new ChannelException(sm.getString("groupChannel.noDestination"));
}
ChannelData data = new ChannelData(true); // generates a unique Id
data.setAddress(getLocalMember(false));
data.setTimestamp(System.currentTimeMillis());
byte[] b = null;
if (msg instanceof ByteMessage) {
b = ((ByteMessage) msg).getMessage();
options = options | SEND_OPTIONS_BYTE_MESSAGE;
} else {
b = XByteBuffer.serialize(msg);
options = options & (~SEND_OPTIONS_BYTE_MESSAGE);
}
data.setOptions(options);
// XByteBuffer buffer = new XByteBuffer(b.length+128,false);
buffer = BufferPool.getBufferPool().getBuffer(b.length + 128, false);
buffer.append(b, 0, b.length);
data.setMessage(buffer);
InterceptorPayload payload = null;
if (handler != null) {
payload = new InterceptorPayload();
payload.setErrorHandler(handler);
}
getFirstInterceptor().sendMessage(destination, data, payload);
if (Logs.MESSAGES.isTraceEnabled()) {
Logs.MESSAGES.trace(
"GroupChannel - Sent msg:"
+ new UniqueId(data.getUniqueId())
+ " at "
+ new java.sql.Timestamp(System.currentTimeMillis())
+ " to "
+ Arrays.toNameString(destination));
Logs.MESSAGES.trace(
"GroupChannel - Send Message:" + new UniqueId(data.getUniqueId()) + " is " + msg);
}
return new UniqueId(data.getUniqueId());
} catch (Exception x) {
if (x instanceof ChannelException) throw (ChannelException) x;
throw new ChannelException(x);
} finally {
if (buffer != null) BufferPool.getBufferPool().returnBuffer(buffer);
}
}