Examples of javax.websocket.DeploymentException

javax.websocket.DeploymentException
Checked exception indicating some kind of failure either to publish an endpoint on its server, or a failure to connect a client to its server. @author dannycoward

    @Override
    public void addEndpoint(Class<?> pojo) throws DeploymentException {


        ServerEndpoint annotation = pojo.getAnnotation(ServerEndpoint.class);
        if (annotation == null) {
            throw new DeploymentException(
                    sm.getString("serverContainer.missingAnnotation",
                            pojo.getName()));
        }
        String path = annotation.value();


        // Validate encoders
        validateEncoders(annotation.encoders());


        // Method mapping
        PojoMethodMapping methodMapping = new PojoMethodMapping(pojo,
                annotation.decoders(), path);


        // ServerEndpointConfig
        ServerEndpointConfig sec;
        Class<? extends Configurator> configuratorClazz =
                annotation.configurator();
        Configurator configurator = null;
        if (!configuratorClazz.equals(Configurator.class)) {
            try {
                configurator = annotation.configurator().newInstance();
            } catch (InstantiationException | IllegalAccessException e) {
                throw new DeploymentException(sm.getString(
                        "serverContainer.configuratorFail",
                        annotation.configurator().getName(),
                        pojo.getClass().getName()), e);
            }
        }

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            @SuppressWarnings("unused")
            Encoder instance;
            try {
                encoder.newInstance();
            } catch(InstantiationException | IllegalAccessException e) {
                throw new DeploymentException(sm.getString(
                        "serverContainer.encoderFail", encoder.getName()), e);
            }
        }
    }

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        }
        WebSocketChannel channel;
        try {
            channel = session.get();
        } catch (UpgradeFailedException e) {
            throw new DeploymentException(e.getMessage(), e);
        }
        EndpointSessionHandler sessionHandler = new EndpointSessionHandler(this);


        final List<Extension> extensions = new ArrayList<>();
        final Map<String, Extension> extMap = new HashMap<>();

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        WebSocketChannel channel;
        try {
            channel = session.get();
        } catch (UpgradeFailedException e) {
            throw new DeploymentException(e.getMessage(), e);
        }
        EndpointSessionHandler sessionHandler = new EndpointSessionHandler(this);


        final List<Extension> extensions = new ArrayList<>();
        final Map<String, Extension> extMap = new HashMap<>();

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            StringBuilder err = new StringBuilder();
            err.append("Not a recognized websocket [");
            err.append(endpoint.getName());
            err.append("] does not extend @").append(ServerEndpoint.class.getName());
            err.append(" or extend from ").append(Endpoint.class.getName());
            throw new DeploymentException("Unable to identify as valid Endpoint: " + endpoint);
        }


        return metadata;
    }

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    }


    @Override
    public Session connectToServer(Class annotatedEndpointClass, URI path) throws DeploymentException, IOException {
        if (annotatedEndpointClass.getAnnotation(ClientEndpoint.class) == null) {
            throw new DeploymentException(String.format("Class argument in connectToServer(Class, URI) is to be annotated endpoint class." +
                    "Class %s does not have @ClientEndpoint", annotatedEndpointClass.getName()));
        }
        try {
            return connectToServer(annotatedEndpointClass, null, path.toString(), new SameThreadExecutorService()).get();
        } catch (InterruptedException e) {
            throw new DeploymentException(e.getMessage(), e);
        } catch (ExecutionException e) {
            final Throwable cause = e.getCause();
            if (cause instanceof DeploymentException) {
                throw (DeploymentException) cause;
            } else if (cause instanceof IOException) {
                throw (IOException) cause;
            } else {
                throw new DeploymentException(cause.getMessage(), cause);
            }
        }
    }

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    @Override
    public Session connectToServer(Class<? extends Endpoint> endpointClass, ClientEndpointConfig cec, URI path) throws DeploymentException, IOException {
        try {
            return connectToServer(endpointClass, cec, path.toString(), new SameThreadExecutorService()).get();
        } catch (InterruptedException e) {
            throw new DeploymentException(e.getMessage(), e);
        } catch (ExecutionException e) {
            final Throwable cause = e.getCause();
            if (cause instanceof DeploymentException) {
                throw (DeploymentException) cause;
            } else if (cause instanceof IOException) {
                throw (IOException) cause;
            } else {
                throw new DeploymentException(cause.getMessage(), cause);
            }
        }
    }

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    @Override
    public Session connectToServer(Endpoint endpointInstance, ClientEndpointConfig cec, URI path) throws DeploymentException, IOException {
        try {
            return connectToServer(endpointInstance, cec, path.toString(), new SameThreadExecutorService()).get();
        } catch (InterruptedException e) {
            throw new DeploymentException(e.getMessage(), e);
        } catch (ExecutionException e) {
            final Throwable cause = e.getCause();
            if (cause instanceof DeploymentException) {
                throw (DeploymentException) cause;
            } else if (cause instanceof IOException) {
                throw (IOException) cause;
            } else {
                throw new DeploymentException(cause.getMessage(), cause);
            }
        }
    }

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    @Override
    public Session connectToServer(Object obj, URI path) throws DeploymentException, IOException {
        try {
            return connectToServer(obj, null, path.toString(), new SameThreadExecutorService()).get();
        } catch (InterruptedException e) {
            throw new DeploymentException(e.getMessage(), e);
        } catch (ExecutionException e) {
            final Throwable cause = e.getCause();
            if (cause instanceof DeploymentException) {
                throw (DeploymentException) cause;
            } else if (cause instanceof IOException) {
                throw (IOException) cause;
            } else {
                throw new DeploymentException(cause.getMessage(), cause);
            }
        }
    }

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     * @return Future for the Session created if the connection is successful.
     * @throws DeploymentException if the class is not a valid annotated endpoint class.
     */
    public Future<Session> asyncConnectToServer(Class<?> annotatedEndpointClass, URI path) throws DeploymentException {
        if (annotatedEndpointClass.getAnnotation(ClientEndpoint.class) == null) {
            throw new DeploymentException(String.format("Class argument in connectToServer(Class, URI) is to be annotated endpoint class." +
                    "Class %s does not have @ClientEndpoint", annotatedEndpointClass.getName()));
        }
        return connectToServer(annotatedEndpointClass, null, path.toString(), getExecutorService());
    }

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