Examples of org.springframework.messaging.simp.SimpMessageHeaderAccessor

Package org.springframework.messaging.simp

Examples of org.springframework.messaging.simp.SimpMessageHeaderAccessor

org.springframework.messaging.simp.SimpMessageHeaderAccessor
A base class for working with message headers in simple messaging protocols that support basic messaging patterns. Provides uniform access to specific values common across protocols such as a destination, message type (e.g. publish, subscribe, etc), session id, and others.
Use one of the static factory method in this class, then call getters and setters, and at the end if necessary call {@link #toMap()} to obtain the updated headers. @author Rossen Stoyanchev @since 4.0

    assertEquals("value", this.testController.arguments.get("name"));
  }


  @Test
  public void simpleBinding() {
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create();
    headers.setSessionId("session1");
    headers.setSessionAttributes(new ConcurrentHashMap<>());
    headers.setDestination("/pre/binding/id/12");
    Message<?> message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
    this.messageHandler.handleMessage(message);


    assertEquals("simpleBinding", this.testController.method);
    assertTrue("should be bound to type long", this.testController.arguments.get("id") instanceof Long);

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    assertEquals(12L, this.testController.arguments.get("id"));
  }


  @Test
  public void validationError() {
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create();
    headers.setSessionId("session1");
    headers.setSessionAttributes(new ConcurrentHashMap<>());
    headers.setDestination("/pre/validation/payload");
    Message<?> message = MessageBuilder.withPayload(TEST_INVALID_VALUE.getBytes()).setHeaders(headers).build();
    this.messageHandler.handleMessage(message);
    assertEquals("handleValidationException", this.testController.method);
  }

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  @Test
  public void simpScope() {
    Map<String, Object> map = new ConcurrentHashMap<>();
    map.put("name", "value");
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create();
    headers.setSessionId("session1");
    headers.setSessionAttributes(map);
    headers.setDestination("/pre/scope");
    Message<?> message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
    this.messageHandler.handleMessage(message);


    assertEquals("scope", this.testController.method);
  }

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    this.messageHandler.setPathMatcher(new AntPathMatcher("."));
    this.messageHandler.registerHandler(controller);
    this.messageHandler.setDestinationPrefixes(Arrays.asList("/app1", "/app2/"));


    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create();
    headers.setSessionId("session1");
    headers.setSessionAttributes(new HashMap<>());
    headers.setDestination("/app1/pre.foo");
    Message<?> message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
    this.messageHandler.handleMessage(message);


    assertEquals("handleFoo", controller.method);


    headers = SimpMessageHeaderAccessor.create();
    headers.setSessionId("session1");
    headers.setSessionAttributes(new HashMap<>());
    headers.setDestination("/app2/pre.foo");
    message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
    this.messageHandler.handleMessage(message);


    assertEquals("handleFoo", controller.method);
  }

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    assertEquals(sess1, connectAckHeaders.getSessionId());
  }




  protected Message<String> createSubscriptionMessage(String sessionId, String subcriptionId, String destination) {
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create(SimpMessageType.SUBSCRIBE);
    headers.setSubscriptionId(subcriptionId);
    headers.setDestination(destination);
    headers.setSessionId(sessionId);
    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }

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    this.handler.handleReturnValue(PAYLOAD, this.sendToReturnType, inputMessage);


    verify(this.messageChannel, times(2)).send(this.messageCaptor.capture());


    Message<?> message = this.messageCaptor.getAllValues().get(0);
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.wrap(message);
    assertEquals(sessionId, headers.getSessionId());
    assertEquals("/dest1", headers.getDestination());
    assertEquals(MIME_TYPE, headers.getContentType());
    assertNull("Subscription id should not be copied", headers.getSubscriptionId());


    message = this.messageCaptor.getAllValues().get(1);
    headers = SimpMessageHeaderAccessor.wrap(message);
    assertEquals(sessionId, headers.getSessionId());
    assertEquals("/dest2", headers.getDestination());
    assertEquals(MIME_TYPE, headers.getContentType());
    assertNull("Subscription id should not be copied", headers.getSubscriptionId());
  }

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    headers.setSessionId(sessionId);
    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }


  protected Message<String> createConnectMessage(String sessionId) {
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create(SimpMessageType.CONNECT);
    headers.setSessionId(sessionId);
    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }

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    this.handler.handleReturnValue(PAYLOAD, this.sendToDefaultDestReturnType, inputMessage);


    verify(this.messageChannel, times(1)).send(this.messageCaptor.capture());


    Message<?> message = this.messageCaptor.getAllValues().get(0);
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.wrap(message);
    assertEquals(sessionId, headers.getSessionId());
    assertEquals("/topic/dest", headers.getDestination());
    assertEquals(MIME_TYPE, headers.getContentType());
    assertNull("Subscription id should not be copied", headers.getSubscriptionId());
  }

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    headers.setSessionId(sessionId);
    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }


  protected Message<String> createMessage(String destination, String payload) {
    SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.create(SimpMessageType.MESSAGE);
    headers.setDestination(destination);
    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }

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    return MessageBuilder.createMessage("", headers.getMessageHeaders());
  }


  protected boolean assertCapturedMessage(String sessionId, String subcriptionId, String destination) {
    for (Message<?> message : this.messageCaptor.getAllValues()) {
      SimpMessageHeaderAccessor headers = SimpMessageHeaderAccessor.wrap(message);
      if (sessionId.equals(headers.getSessionId())) {
        if (subcriptionId.equals(headers.getSubscriptionId())) {
          if (destination.equals(headers.getDestination())) {
            return true;
          }
        }
      }
    }

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