/**
* Sends a request which is not answered by the server. This method can be used for time-critical
* data
*/
public void sendRequest(HTTPMessageObject request) {
if (request == null) {
logger.error("no message to be sent");
return;
}
try {
if (socket == null) {
socket = new DatagramSocket();
}
SocketHelper.sendBinaryMessage(request.toBinaryMessage(), socket);
} catch (Exception e) {
} finally {
tryClose();
}
}
/*
* (non-Javadoc)
*
* @see de.fhg.fokus.magic.http.IHTTPClient#sendRequestAndWaitForResponse(de.fhg.fokus.magic.http.HTTPMessageObject)
*/
public void sendRequestAndWaitForResponse(HTTPMessageObject request) {
if (request == null) {
logger.error("no message to be sent");
return;
}
// cancel request if too many active clients
if (activeClients > HTTPDefaults.MAX_ACTIVE_CLIENTS) {
return;
}
activeClients++;
int numberOfRetries = 0;
boolean success = false;
while (!success && !terminateClient && numberOfRetries < HTTPDefaults.MAX_CLIENT_FAILURES) {
try {
if (socket == null) {
socket = new DatagramSocket();
}
SocketHelper.sendBinaryMessage(request.toBinaryMessage(), socket);
// try to receive response for 2 seconds
BinaryMessageObject binaryResponse = SocketHelper.readBinaryMessage(null, socket, 2000);
if (binaryResponse != null) {
responseMessage = binaryResponse.toHTTPMessageObject();
responseMessage.setDestinationAddress(binaryResponse.getSourceAddress());
responseMessage.setSourceAddress(request.getDestinationAddress());
}
success = true;
} catch (Exception e) {
numberOfRetries++;
}
}
tryClose();
activeClients--;
if (debug) {
System.out.println("HTTPClient response header:" + responseMessage.getHeader());
System.out.println(
"HTTPClient response body:"
+ StringHelper.byteArrayToUTF8String(responseMessage.getBody()));
}
}