How to access STOMP getSessionAttributes() that are populated in websocket client-inbound-channel interceptor...












1














I am using spring-websocket and I have these two interceptors



<websocket:client-inbound-channel>
<websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
<websocket:interceptors>
<ref bean="myInterceptor"/>
</websocket:interceptors>
</websocket:client-inbound-channel>


<websocket:client-outbound-channel>
<websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
<websocket:interceptors>
<ref bean="myOutInterceptor"/>
</websocket:interceptors>
</websocket:client-outbound-channel>


I am using StompHeaderAccessor to wrap the message in preSend(Message<?> message, MessageChannel channel) in both interceptors.



I am using the following to access session's attributes in the inbound interceptor:



...
StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
// ignore non-STOMP messages like heartbeat messages
if(sha.getCommand() == null) {
return message;
}
String sessionId = sha.getSessionId();
Map<String, Object> sessionAttributes = sha.getSessionAttributes();
...


The problem is, sha.getSessionAttributes(); in the inbound interceptor returns data but when I call sha.getSessionAttributes(); in the outbound interceptor it returns null.



How can I access the sessionAttributes from the outbound Interceptor?










share|improve this question





























    1














    I am using spring-websocket and I have these two interceptors



    <websocket:client-inbound-channel>
    <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
    <websocket:interceptors>
    <ref bean="myInterceptor"/>
    </websocket:interceptors>
    </websocket:client-inbound-channel>


    <websocket:client-outbound-channel>
    <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
    <websocket:interceptors>
    <ref bean="myOutInterceptor"/>
    </websocket:interceptors>
    </websocket:client-outbound-channel>


    I am using StompHeaderAccessor to wrap the message in preSend(Message<?> message, MessageChannel channel) in both interceptors.



    I am using the following to access session's attributes in the inbound interceptor:



    ...
    StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
    // ignore non-STOMP messages like heartbeat messages
    if(sha.getCommand() == null) {
    return message;
    }
    String sessionId = sha.getSessionId();
    Map<String, Object> sessionAttributes = sha.getSessionAttributes();
    ...


    The problem is, sha.getSessionAttributes(); in the inbound interceptor returns data but when I call sha.getSessionAttributes(); in the outbound interceptor it returns null.



    How can I access the sessionAttributes from the outbound Interceptor?










    share|improve this question



























      1












      1








      1







      I am using spring-websocket and I have these two interceptors



      <websocket:client-inbound-channel>
      <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
      <websocket:interceptors>
      <ref bean="myInterceptor"/>
      </websocket:interceptors>
      </websocket:client-inbound-channel>


      <websocket:client-outbound-channel>
      <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
      <websocket:interceptors>
      <ref bean="myOutInterceptor"/>
      </websocket:interceptors>
      </websocket:client-outbound-channel>


      I am using StompHeaderAccessor to wrap the message in preSend(Message<?> message, MessageChannel channel) in both interceptors.



      I am using the following to access session's attributes in the inbound interceptor:



      ...
      StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
      // ignore non-STOMP messages like heartbeat messages
      if(sha.getCommand() == null) {
      return message;
      }
      String sessionId = sha.getSessionId();
      Map<String, Object> sessionAttributes = sha.getSessionAttributes();
      ...


      The problem is, sha.getSessionAttributes(); in the inbound interceptor returns data but when I call sha.getSessionAttributes(); in the outbound interceptor it returns null.



      How can I access the sessionAttributes from the outbound Interceptor?










      share|improve this question















      I am using spring-websocket and I have these two interceptors



      <websocket:client-inbound-channel>
      <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
      <websocket:interceptors>
      <ref bean="myInterceptor"/>
      </websocket:interceptors>
      </websocket:client-inbound-channel>


      <websocket:client-outbound-channel>
      <websocket:executor core-pool-size="100" max-pool-size="200" keep-alive-seconds="600"/>
      <websocket:interceptors>
      <ref bean="myOutInterceptor"/>
      </websocket:interceptors>
      </websocket:client-outbound-channel>


      I am using StompHeaderAccessor to wrap the message in preSend(Message<?> message, MessageChannel channel) in both interceptors.



      I am using the following to access session's attributes in the inbound interceptor:



      ...
      StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
      // ignore non-STOMP messages like heartbeat messages
      if(sha.getCommand() == null) {
      return message;
      }
      String sessionId = sha.getSessionId();
      Map<String, Object> sessionAttributes = sha.getSessionAttributes();
      ...


      The problem is, sha.getSessionAttributes(); in the inbound interceptor returns data but when I call sha.getSessionAttributes(); in the outbound interceptor it returns null.



      How can I access the sessionAttributes from the outbound Interceptor?







      java spring-websocket






      share|improve this question















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      edited Nov 20 '18 at 8:22









      Ashish Kamble

      634519




      634519










      asked Nov 20 '18 at 8:19









      aboudirawas

      218




      218
























          1 Answer
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          It feels like a workaround. That is how I solved it.



          I added a bean acting like a repository containing a Map, keys are session ids, values are session attributes.



          In inbound interceptor, case SUBSCRIBE, I put the session id along with the attributes. And removed it from the map in case UNSUBSCRIBE and case DISCONNECT.



          In outbound interceptor, case MESSAGE, I got the relevant sessionAttributes from that bean sessionAttributes = theBean.getSessionIdAndAttributes().get(sessionId) instead of getting it from the message object sessionAttributes = sha.getSessionAttributes().






          share|improve this answer





















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            It feels like a workaround. That is how I solved it.



            I added a bean acting like a repository containing a Map, keys are session ids, values are session attributes.



            In inbound interceptor, case SUBSCRIBE, I put the session id along with the attributes. And removed it from the map in case UNSUBSCRIBE and case DISCONNECT.



            In outbound interceptor, case MESSAGE, I got the relevant sessionAttributes from that bean sessionAttributes = theBean.getSessionIdAndAttributes().get(sessionId) instead of getting it from the message object sessionAttributes = sha.getSessionAttributes().






            share|improve this answer


























              0














              It feels like a workaround. That is how I solved it.



              I added a bean acting like a repository containing a Map, keys are session ids, values are session attributes.



              In inbound interceptor, case SUBSCRIBE, I put the session id along with the attributes. And removed it from the map in case UNSUBSCRIBE and case DISCONNECT.



              In outbound interceptor, case MESSAGE, I got the relevant sessionAttributes from that bean sessionAttributes = theBean.getSessionIdAndAttributes().get(sessionId) instead of getting it from the message object sessionAttributes = sha.getSessionAttributes().






              share|improve this answer
























                0












                0








                0






                It feels like a workaround. That is how I solved it.



                I added a bean acting like a repository containing a Map, keys are session ids, values are session attributes.



                In inbound interceptor, case SUBSCRIBE, I put the session id along with the attributes. And removed it from the map in case UNSUBSCRIBE and case DISCONNECT.



                In outbound interceptor, case MESSAGE, I got the relevant sessionAttributes from that bean sessionAttributes = theBean.getSessionIdAndAttributes().get(sessionId) instead of getting it from the message object sessionAttributes = sha.getSessionAttributes().






                share|improve this answer












                It feels like a workaround. That is how I solved it.



                I added a bean acting like a repository containing a Map, keys are session ids, values are session attributes.



                In inbound interceptor, case SUBSCRIBE, I put the session id along with the attributes. And removed it from the map in case UNSUBSCRIBE and case DISCONNECT.



                In outbound interceptor, case MESSAGE, I got the relevant sessionAttributes from that bean sessionAttributes = theBean.getSessionIdAndAttributes().get(sessionId) instead of getting it from the message object sessionAttributes = sha.getSessionAttributes().







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 21 '18 at 9:14









                aboudirawas

                218




                218






























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