Examples of org.springframework.web.socket.server.HandshakeFailureException

Package org.springframework.web.socket.server

Examples of org.springframework.web.socket.server.HandshakeFailureException

org.springframework.web.socket.server.HandshakeFailureException
Thrown when handshake processing failed to complete due to an internal, unrecoverable error. This implies a server error (HTTP status code 500) as opposed to a failure in the handshake negotiation.
By contrast, when handshake negotiation fails, the response status code will be 200 and the response headers and body will have been updated to reflect the cause for the failure. A {@link HandshakeHandler} implementation will have protected methods tocustomize updates to the response in those cases. @author Rossen Stoyanchev @since 4.0


    ServerHttpRequest request = new ServletServerHttpRequest(servletRequest);
    ServerHttpResponse response = new ServletServerHttpResponse(servletResponse);


    HandshakeInterceptorChain chain = new HandshakeInterceptorChain(this.interceptors, this.wsHandler);
    HandshakeFailureException failure = null;


    try {
      if (logger.isDebugEnabled()) {
        logger.debug(servletRequest.getMethod() + " " + servletRequest.getRequestURI());
      }
      Map<String, Object> attributes = new HashMap<String, Object>();
      if (!chain.applyBeforeHandshake(request, response, attributes)) {
        return;
      }
      this.handshakeHandler.doHandshake(request, response, this.wsHandler, attributes);
      chain.applyAfterHandshake(request, response, null);
      response.close();
    }
    catch (HandshakeFailureException ex) {
      failure = ex;
    }
    catch (Throwable ex) {
      failure = new HandshakeFailureException("Uncaught failure for request " + request.getURI(), ex);
    }
    finally {
      if (failure != null) {
        chain.applyAfterHandshake(request, response, failure);
        throw failure;

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          }
          handleSuccess(servletRequest, servletResponse, upgradeInfo, upgradeResponse);
          break;
        case HANDSHAKE_FAILED:
          // Should never happen
          throw new HandshakeFailureException("Unexpected handshake failure: " + request.getURI());
        case NOT_APPLICABLE:
          // Should never happen
          throw new HandshakeFailureException("Unexpected handshake mapping failure: " + request.getURI());
      }
    }
    catch (Exception ex) {
      throw new HandshakeFailureException("Error during handshake: " + request.getURI(), ex);
    }
    finally {
      if (tyrusEndpoint != null) {
        getEndpointHelper().unregister(engine, tyrusEndpoint);
      }

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      try {
        return constructor.newInstance(registration.getEndpoint(), registration, provider, container,
            "/",  registration.getConfigurator(), sessionListener, clusterContext, null);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to register " + registration, ex);
      }
    }

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    public void register(TyrusWebSocketEngine engine, Object endpoint) {
      try {
        registerMethod.invoke(engine, endpoint);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to register " + endpoint, ex);
      }
    }

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    public void unregister(TyrusWebSocketEngine engine, Object endpoint) {
      try {
        unRegisterMethod.invoke(engine, endpoint);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to unregister " + endpoint, ex);
      }
    }

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    public void register(TyrusWebSocketEngine engine, Object endpoint) {
      try {
        registerMethod.invoke(engine, endpoint);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to register " + endpoint, ex);
      }
    }

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    private Object newInstance(Object httpSocket) {
      try {
        return webSocketConstructor.newInstance(httpSocket);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to create TyrusMuxableWebSocket", ex);
      }
    }

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    private void upgrade(Object webSocket, Object httpSocket, ServletContext servletContext) {
      try {
        webSocketUpgradeMethod.invoke(webSocket, httpSocket, servletContext);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to upgrade TyrusMuxableWebSocket", ex);
      }
    }

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    private void registerForReadEvent(Object webSocket) {
      try {
        webSocketReadEventMethod.invoke(webSocket);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to register WebSocket for read event", ex);
      }
    }

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    private Writer newInstance(HttpServletResponse response, Object webSocket, boolean isProtected) {
      try {
        return (Writer) constructor.newInstance(webSocket, response, null, isProtected);
      }
      catch (Exception ex) {
        throw new HandshakeFailureException("Failed to create TyrusServletWriter", ex);
      }
    }

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