Summarization of the problem
In my project, we are trying to use Spring-Cloud-Stream (SCS) to connect to Solace. Eventually we plan to move to Kafka. So using SCS will help us move over to Kafka quite easily without any code changes and very minimal configuration & dependency changes.
We had been using Solace for a while using JMS. Now when we tried to publish messages to Solace using SCS, we observed that in the message, some crucial JMS Headers (JMSMessageID, JMSType, JMSPriority,JMSCorrelationID, JMSExpiration) are blank.
Do we need to configure the JMS headers separately ? If yes, how ?
What I've already tried
I tried to set headers like this, but this is just resulting in duplicate headers with the same name.
@Output(SendReport.TO_NMR)
public void sendMessage(String request) {
log.info("****************** Got this Report Request: " + request);
MessageBuilder<String> builder = MessageBuilder.withPayload(request);
builder.setHeader("JMSType","report-request");
builder.setHeader("JMSMessageId","1");
builder.setHeader("JMSCorrelationId","11");
builder.setHeader("JMSMessageID","4");
builder.setHeader("JMSCorrelationID","114");
builder.setHeader("ApplicationMessageId","111");
builder.setHeader("ApplicationMessageID","112");
builder.setCorrelationId("23434");
Message message = builder.build();
sendReport.output().send(message);
}
JMS Header of the message in Solace looks like this
JMSMessageID
JMSDestination TOPIC_NAME
JMSTimestamp Wed Dec 31 18:00:00 CST 1969
JMSType
JMSReplyTo
JMSCorrelationID
JMSExpiration 0
JMSPriority 0
JMSType nmr-report-request
JMSMessageId 1
JMSMessageID 4
_isJavaSerializedObject-contentType true
_isJavaSerializedObject-id true
solaceSpringCloudStreamBinderVersion 0.1.0
ApplicationMessageId 111
ApplicationMessageID 112
JMSCorrelationId 11
JMSCorrelationID 114
correlationId 23434
id [-84,-19,0,5,115,114,0,14,106,97,118,97,46,117,116,105,108,46,85,85,73,68,-68,-103,3,-9,-104,109,-123,47,2,0,2,74,0,12,108,101,97,115,116,83,105,103,66,105,116,115,74,0,11,109,111,115,116,83,105,103,66,105,116,115,120,112,13,-26,2,-51,111,-17,73,73,-18,-32,-26,-11,-46,-89,50,-37] (offset=377, length=80)
contentType [-84,-19,0,5,115,114,0,33,111,114,103,46,115,112,114,105,110,103,102,114,97,109,101,119,111,114,107,46,117,116,105,108,46,77,105,109,101,84,121,112,101,56,-76,29,-63,64,96,-36,-81,2,0,3,76,0,10,112,97,114,97,109,101,116,101,114,115,116,0,15,76,106,97,118,97,47,117,116,105,108,47,77,97,112,59,76,0,7,115,117,98,116,121,112,101,116,0,18,76,106,97,118] (offset=473, length=190)
timestamp 1555707627482
Code used to connect to Solace
Spring Boot Main Class
@SpringBootApplication
@EnableDiscoveryClient
@Slf4j
@EnableBinding({SendReport.class})
public class ReportServerApplication {
public static void main(final String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext-server.xml");
new SpringApplicationBuilder(ReportServerApplication.class).listeners(new EnvironmentPreparedListener()) .run(args);
}
Class to connect channel to topic:
public interface SendReport {
String TO_NMR = "solace-poc-outbound";
@Output(SendReport.TO_NMR)
MessageChannel output();
}
Message Handler:
@Slf4j
@Component
@EnableBinding({SendReport.class})
public class MessageHandler {
private SendReport sendReport;
public MessageHandler(SendReport sendReport){
this.sendReport = sendReport;
}
@Output(SendReport.TO_NMR)
public void sendMessage(String request) {
log.info("****************** Got this Report Request: " + request);
var message = MessageBuilder.withPayload(request).build();
sendReport.output().send(message);
}
}
Properties used for configuration : application.yml
spring:
cloud:
# spring cloud stream binding
stream:
bindings:
solace-poc-outbound:
destination: TOPIC_NAME
contentType: text/plain
solace:
java:
host: tcp://xyz.abc.com
#port: xxx
msgVpn: yyy
clientUsername: aaa
Dependencies used:
'org.springframework.cloud:spring-cloud-stream',
'com.solace.spring.cloud:spring-cloud-starter-stream-solace:1.1.+'
Observation
- Expected result : All JMS headers should get populated by SCS.
- Actual result : Some JMS headers are not getting populated.
