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/*
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*
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*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
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* file that accompanied this code.
*
* Modifications:
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*/
/*
* @(#)RequestReply.c 1.26 06/26/07
*/
/*
***********************************************************
* C sample program: RequestReply.c
*
* Description:
*
* A simple request-reply program
*
* Specify mode (requestor or replier) when you run this program.
* Run the requestor inconjunction with the replier. If the destination
* type is topic, start the replier first, then run the requestor.
* By default the destination type is topic. See usage for options.
*
*/
#include
#include
#include
#include "mqcrt.h"
#define MQ_ERR_CHK(mqCall) \
if (MQStatusIsError(status = (mqCall)) == MQ_TRUE) { \
goto Cleanup; \
}
MQStatus
reply(MQConnectionHandle connectionHandle,
MQSessionHandle sessionHandle,
MQDestinationHandle destinationHandle)
{
MQStatus status;
MQConsumerHandle consumerHandle = MQ_INVALID_HANDLE;
MQMessageHandle recvMessageHandle = MQ_INVALID_HANDLE;
MQMessageHandle sendMessageHandle = MQ_INVALID_HANDLE;
MQDestinationHandle replyToHandle = MQ_INVALID_HANDLE;
MQProducerHandle producerHandle = MQ_INVALID_HANDLE;
ConstMQString msgText;
MQ_ERR_CHK( MQCreateMessageConsumer(sessionHandle, destinationHandle,
NULL, MQ_TRUE, &consumerHandle) );
fprintf(stdout, "Waiting for request ...\n");
MQ_ERR_CHK( MQReceiveMessageWait(consumerHandle, &recvMessageHandle) );
MQ_ERR_CHK( MQGetTextMessageText(recvMessageHandle, &msgText) );
fprintf(stdout, "Received request: %s\n", msgText);
/* Get the destination that a reply to this message should be sent */
MQ_ERR_CHK( MQGetMessageReplyTo(recvMessageHandle, &replyToHandle) );
/* Create a message producer for sending a reply */
MQ_ERR_CHK( MQCreateMessageProducerForDestination(sessionHandle,
replyToHandle, &producerHandle));
/* Free the destination handle */
MQ_ERR_CHK( MQFreeDestination(replyToHandle) );
MQ_ERR_CHK( MQCreateTextMessage(&sendMessageHandle) );
MQ_ERR_CHK( MQSetTextMessageText(sendMessageHandle, "This is a reply") );
fprintf(stdout, "Sending reply ...\n");
MQ_ERR_CHK( MQSendMessage(producerHandle, sendMessageHandle) );
fprintf(stdout, "Reply sent.\n");
MQ_ERR_CHK( MQFreeMessage(sendMessageHandle) );
/* Acknowledge the request message received */
MQ_ERR_CHK( MQAcknowledgeMessages(sessionHandle, recvMessageHandle) );
MQFreeMessage( recvMessageHandle );
return status;
Cleanup:
{
MQString errorString = MQGetStatusString(status);
fprintf(stderr, "reply(): Error: %s\n",
(errorString == NULL) ? "NULL":errorString);
MQFreeString(errorString);
}
MQFreeDestination( replyToHandle );
MQFreeMessage(recvMessageHandle);
MQFreeMessage(sendMessageHandle);
return status;
}
MQStatus
request(MQConnectionHandle connectionHandle,
MQSessionHandle sessionHandle,
MQDestinationHandle destinationHandle)
{
MQStatus status;
MQProducerHandle producerHandle = MQ_INVALID_HANDLE;
MQMessageHandle messageHandle = MQ_INVALID_HANDLE;
MQDestinationHandle replyToHandle = MQ_INVALID_HANDLE;
MQConsumerHandle consumerHandle = MQ_INVALID_HANDLE;
ConstMQString msgText;
MQ_ERR_CHK( MQCreateMessageProducerForDestination(sessionHandle,
destinationHandle, &producerHandle));
/* Create a temporary destination */
MQ_ERR_CHK( MQCreateTemporaryDestination(sessionHandle,
MQ_QUEUE_DESTINATION, &replyToHandle) );
fprintf(stdout, "Creating a text message ...\n");
MQ_ERR_CHK( MQCreateTextMessage(&messageHandle) );
MQ_ERR_CHK( MQSetTextMessageText(messageHandle, "This is a request") );
/* Set where a reply to this message should be sent */
MQ_ERR_CHK( MQSetMessageReplyTo(messageHandle, replyToHandle) );
/* Create a message consumer to receive the reply */
MQ_ERR_CHK( MQCreateMessageConsumer(sessionHandle, replyToHandle,
NULL, MQ_TRUE, &consumerHandle) );
MQ_ERR_CHK( MQFreeDestination(replyToHandle) );
fprintf(stdout, "Sending request ...\n");
MQ_ERR_CHK( MQSendMessage(producerHandle, messageHandle) );
MQ_ERR_CHK( MQFreeMessage(messageHandle) );
fprintf(stdout, "Waiting for reply ...\n");
MQ_ERR_CHK( MQReceiveMessageWait(consumerHandle, &messageHandle) );
MQ_ERR_CHK( MQGetTextMessageText(messageHandle, &msgText) );
fprintf(stdout, "Received reply: %s\n", msgText);
MQ_ERR_CHK( MQAcknowledgeMessages(sessionHandle, messageHandle) );
MQ_ERR_CHK( MQFreeMessage(messageHandle) );
return status;
Cleanup:
{
MQString errorString = MQGetStatusString(status);
fprintf(stderr, "request(): Error: %s\n",
(errorString == NULL) ? "NULL":errorString);
MQFreeString(errorString);
}
MQFreeMessage(messageHandle);
MQFreeDestination(replyToHandle);
return status;
}
MQStatus
setup(char *brokerHost, int brokerPort,
char *destinationName,
MQDestinationType destinationType, MQBool isConsumer)
{
MQStatus status;
MQPropertiesHandle propertiesHandle = MQ_INVALID_HANDLE;
MQConnectionHandle connectionHandle = MQ_INVALID_HANDLE;
MQSessionHandle sessionHandle = MQ_INVALID_HANDLE;
MQDestinationHandle destinationHandle = MQ_INVALID_HANDLE;
MQ_ERR_CHK( MQCreateProperties(&propertiesHandle) );
MQ_ERR_CHK( MQSetStringProperty(propertiesHandle,
MQ_BROKER_HOST_PROPERTY, brokerHost) );
MQ_ERR_CHK( MQSetInt32Property(propertiesHandle,
MQ_BROKER_PORT_PROPERTY, brokerPort) );
MQ_ERR_CHK( MQSetStringProperty(propertiesHandle,
MQ_CONNECTION_TYPE_PROPERTY, "TCP") );
MQ_ERR_CHK( MQCreateConnection(propertiesHandle, "guest", "guest", NULL,
NULL, NULL, &connectionHandle) );
MQ_ERR_CHK( MQCreateSession(connectionHandle, MQ_FALSE, MQ_CLIENT_ACKNOWLEDGE,
MQ_SESSION_SYNC_RECEIVE, &sessionHandle) );
MQ_ERR_CHK( MQCreateDestination(sessionHandle, destinationName,
destinationType, &destinationHandle) );
MQ_ERR_CHK( MQStartConnection(connectionHandle) );
if (isConsumer == MQ_TRUE) {
MQ_ERR_CHK( reply(connectionHandle, sessionHandle, destinationHandle) );
}
else {
MQ_ERR_CHK( request(connectionHandle, sessionHandle, destinationHandle) );
}
MQ_ERR_CHK( MQFreeDestination(destinationHandle) );
MQ_ERR_CHK( MQCloseConnection(connectionHandle) );
MQ_ERR_CHK( MQFreeConnection(connectionHandle) );
return status;
Cleanup:
{
MQString errorString = MQGetStatusString(status);
fprintf(stderr, "setup(): Error: %s\n",
(errorString == NULL) ? "NULL":errorString);
MQFreeString(errorString);
}
MQFreeProperties(propertiesHandle);
MQFreeDestination(destinationHandle);
MQCloseConnection(connectionHandle);
MQFreeConnection(connectionHandle);
return status;
}
void
usageExit() {
fprintf(stderr, "usage: RequestReply [-h ] [-p ]\n");
fprintf(stderr, " [-t ] [-d ]\n");
fprintf(stderr, " -mode | [-help]\n");
fprintf(stderr, "\n");
fprintf(stderr, " defaults: localhost if no -h\n");
fprintf(stderr, " 7676 if no -p\n");
fprintf(stderr, " topic if no -t\n");
fprintf(stderr, " example_requestreply_dest if no -d\n");
exit(1);
}
int
main(int argc, char *argv[])
{
char defaultBrokerHost[] = "localhost";
int defaultBrokerPort = 7676;
char defaultDestinationName[] = "example_requestreply_dest";
char *brokerHost = defaultBrokerHost;
int brokerPort = defaultBrokerPort;
char *destinationName = NULL;
MQBool isConsumer = MQ_FALSE, hasmode = MQ_FALSE;
MQDestinationType destinationType = MQ_TOPIC_DESTINATION;
int i;
if (argc < 2) {
usageExit();
}
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-help") == 0) {
usageExit();
}
if (i == argc - 1 || strncmp(argv[i+1], "-", 1) == 0) {
usageExit();
}
if (strcmp(argv[i], "-h") == 0) {
brokerHost = argv[++i];
continue;
}
if (strcmp(argv[i], "-p") == 0) {
brokerPort = atoi(argv[++i]);
continue;
}
if (strcmp(argv[i], "-d") == 0) {
destinationName = argv[++i];
continue;
}
if (strcmp(argv[i], "-t") == 0) {
if (strncmp(argv[++i], "q", 1) == 0) {
destinationType = MQ_QUEUE_DESTINATION;
continue;
}
if (strncmp(argv[i], "t", 1) == 0) {
destinationType = MQ_TOPIC_DESTINATION;
continue;
}
usageExit();
}
if (strncmp(argv[i], "-m", 2) == 0) {
hasmode = MQ_TRUE;
if (strncmp(argv[++i], "rep", 3) == 0) {
isConsumer = MQ_TRUE;
continue;
}
if (strncmp(argv[i], "req", 3) == 0) {
isConsumer = MQ_FALSE;
continue;
}
usageExit();
}
usageExit();
} /* for */
if (hasmode == MQ_FALSE) {
usageExit();
}
if (destinationName == NULL) {
destinationName = &defaultDestinationName[0];
}
if (MQStatusIsError( setup(brokerHost, brokerPort, destinationName,
destinationType, isConsumer) )) {
return 1;
}
fprintf(stdout, "Done !\n");
return 0;
}
