/**
* 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();
}
}
