org.eclipse.lsp4j.jsonrpc.messages.Message Java Examples

@Override
public void handle(Message message, List<MessageIssue> issues) {
	if (issues.isEmpty()) {
		throw new IllegalArgumentException("The list of issues must not be empty.");
	}
	
	if (message instanceof RequestMessage) {
		RequestMessage requestMessage = (RequestMessage) message;
		handleRequestIssues(requestMessage, issues);
	} else if (message instanceof ResponseMessage) {
		ResponseMessage responseMessage = (ResponseMessage) message;
		handleResponseIssues(responseMessage, issues);
	} else {
		logIssues(message, issues);
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_02() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<Integer, Map<String,String>>>() {}.getType(),
			new TypeToken<Object>() {}.getType()));
	DebugMessageJsonHandler handler = new DebugMessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");
	Message message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ "\"body\": 2\n"
			+ "}");
	Either<Integer, List<Map<String, String>>> result = (Either<Integer, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isLeft());
	Assert.assertEquals(Integer.valueOf(2), result.getLeft());
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testParseList_02() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Set<Entry>>() {}.getType(),
			new TypeToken<Set<Entry>>() {}.getType()));
	DebugMessageJsonHandler handler = new DebugMessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ " \"body\": [\n"
			+ "  {\"name\":\"$schema\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":1,\"character\":3},\"end\":{\"line\":1,\"character\":55}}}},\n"
			+ "  {\"name\":\"type\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":2,\"character\":3},\"end\":{\"line\":2,\"character\":19}}}},\n"
			+ "  {\"name\":\"title\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":3,\"character\":3},\"end\":{\"line\":3,\"character\":50}}}},\n"
			+ "  {\"name\":\"additionalProperties\",\"kind\":17,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":4,\"character\":4},\"end\":{\"line\":4,\"character\":32}}}},\n"
			+ "  {\"name\":\"properties\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":5,\"character\":3},\"end\":{\"line\":5,\"character\":20}}}}\n"
			+ "]}");
	Set<Entry> result = (Set<Entry>) ((ResponseMessage)message).getResult();
	Assert.assertEquals(5, result.size());
	for (Entry e : result) {
		Assert.assertTrue(e.location.uri, e.location.uri.startsWith("file:/home/mistria"));
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testParseList() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<List<? extends Entry>>() {}.getType(),
			new TypeToken<List<? extends Entry>>() {}.getType()));
	DebugMessageJsonHandler handler = new DebugMessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ " \"body\": [\n"
			+ "  {\"name\":\"$schema\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":1,\"character\":3},\"end\":{\"line\":1,\"character\":55}}}},\n"
			+ "  {\"name\":\"type\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":2,\"character\":3},\"end\":{\"line\":2,\"character\":19}}}},\n"
			+ "  {\"name\":\"title\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":3,\"character\":3},\"end\":{\"line\":3,\"character\":50}}}},\n"
			+ "  {\"name\":\"additionalProperties\",\"kind\":17,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":4,\"character\":4},\"end\":{\"line\":4,\"character\":32}}}},\n"
			+ "  {\"name\":\"properties\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":5,\"character\":3},\"end\":{\"line\":5,\"character\":20}}}}\n"
			+ "]}");
	List<? extends Entry> result = (List<? extends Entry>) ((ResponseMessage)message).getResult();
	Assert.assertEquals(5, result.size());
	for (Entry e : result) {
		Assert.assertTrue(e.location.uri, e.location.uri.startsWith("file:/home/mistria"));
	}
}
 

@Test
public void testExceptionInOutputStream() throws Exception {
	LogMessageAccumulator logMessages = new LogMessageAccumulator();
	try {
		logMessages.registerTo(RemoteEndpoint.class);
		
		TestEndpoint endp = new TestEndpoint();
		MessageConsumer consumer = new MessageConsumer() {
			@Override
			public void consume(Message message) throws JsonRpcException {
				throw new JsonRpcException(new SocketException("Permission denied: connect"));
			}
		};
		RemoteEndpoint endpoint = new RemoteEndpoint(consumer, endp);
		endpoint.notify("foo", null);
		
		logMessages.await(Level.WARNING, "Failed to send notification message.");
	} finally {
		logMessages.unregister();
	}
}
 

/**
 * Constructs a log string for a given {@link Message}. The type of the {@link MessageConsumer}
 * determines if we're sending or receiving a message. The type of the @{link Message} determines
 * if it is a request, response, or notification.
 */
@Override
public void consume(Message message) throws MessageIssueException, JsonRpcException {
	final Instant now = clock.instant();
	final String date = dateTimeFormatter.format(now);
	final String logString;

	if (messageConsumer instanceof StreamMessageConsumer) {
		logString = consumeMessageSending(message, now, date);
	} else if (messageConsumer instanceof RemoteEndpoint) {
		logString = consumeMessageReceiving(message, now, date);
	} else {
		LOG.log(WARNING, String.format("Unknown MessageConsumer type: %s", messageConsumer));
		logString = null;
	}

	if (logString != null) {
		printWriter.print(logString);
		printWriter.flush();
	}

	messageConsumer.consume(message);
}
 

@Override
public void consume(Message message) {
	try {
		String content = jsonHandler.serialize(message);
		byte[] contentBytes = content.getBytes(encoding);
		int contentLength = contentBytes.length;

		String header = getHeader(contentLength);
		byte[] headerBytes = header.getBytes(StandardCharsets.US_ASCII);

		synchronized (outputLock) {
			output.write(headerBytes);
			output.write(contentBytes);
			output.flush();
		}
	} catch (IOException exception) {
		throw new JsonRpcException(exception);
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_02() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<MyEnum, Map<String,String>>>() {}.getType(),
			new TypeToken<Object>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ "\"result\": 2\n"
			+ "}");
	Either<MyEnum, List<Map<String, String>>> result = (Either<MyEnum, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isLeft());
	Assert.assertEquals(MyEnum.B, result.getLeft());
}
 

@Test
public void testOutputStreamClosed() throws Exception {
	LogMessageAccumulator logMessages = new LogMessageAccumulator();
	try {
		logMessages.registerTo(RemoteEndpoint.class);
		
		TestEndpoint endp = new TestEndpoint();
		MessageConsumer consumer = new MessageConsumer() {
			@Override
			public void consume(Message message) throws JsonRpcException {
				throw new JsonRpcException(new SocketException("Socket closed"));
			}
		};
		RemoteEndpoint endpoint = new RemoteEndpoint(consumer, endp);
		endpoint.notify("foo", null);
		
		logMessages.await(Level.INFO, "Failed to send notification message.");
	} finally {
		logMessages.unregister();
	}
}
 

@Override
public void handleMessage(Message message, LanguageServer languageServer, URI rootUri) {
	if (message instanceof ResponseMessage) {
		ResponseMessage responseMessage = (ResponseMessage) message;
		if (responseMessage.getResult() instanceof InitializeResult) {
			Map<String, Object> htmlOptions = new HashMap<>();

			Map<String, Object> validateOptions = new HashMap<>();
			validateOptions.put("scripts", true);
			validateOptions.put("styles", true);
			htmlOptions.put("validate", validateOptions);

			htmlOptions.put("format", Collections.singletonMap("enable", Boolean.TRUE));

			Map<String, Object> html = new HashMap<>();
			html.put("html", htmlOptions);

			DidChangeConfigurationParams params = new DidChangeConfigurationParams(html);
			languageServer.getWorkspaceService().didChangeConfiguration(params);
		}
	}
}
 

@Override
public void handleMessage(Message message, LanguageServer languageServer, URI rootUri) {
	IPreferenceStore preferenceStore = Activator.getDefault().getPreferenceStore();
	String schemaStr = preferenceStore.getString(YAMLPreferenceInitializer.YAML_SCHEMA_PREFERENCE);
	if (cachedSchema == null || !schemaStr.equals(cachedSchema)) {
		cachedSchema = schemaStr;
		Map<String, Object> schemas = new Gson().fromJson(schemaStr, new TypeToken<HashMap<String, Object>>() {}.getType());
		Map<String, Object> yaml = new HashMap<>();
		yaml.put("schemas", schemas);
		yaml.put("validate", true);
		yaml.put("completion", true);
		yaml.put("hover", true);
		
		Map<String, Object> settings = new HashMap<>();
		settings.put("yaml", yaml);
		
		DidChangeConfigurationParams params = new DidChangeConfigurationParams(settings);
		languageServer.getWorkspaceService().didChangeConfiguration(params);
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testParseList_02() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Set<Entry>>() {}.getType(),
			new TypeToken<Set<Entry>>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n" 
			+ " \"result\": [\n"
			+ "  {\"name\":\"$schema\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":1,\"character\":3},\"end\":{\"line\":1,\"character\":55}}}},\n"
			+ "  {\"name\":\"type\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":2,\"character\":3},\"end\":{\"line\":2,\"character\":19}}}},\n"
			+ "  {\"name\":\"title\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":3,\"character\":3},\"end\":{\"line\":3,\"character\":50}}}},\n"
			+ "  {\"name\":\"additionalProperties\",\"kind\":17,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":4,\"character\":4},\"end\":{\"line\":4,\"character\":32}}}},\n"
			+ "  {\"name\":\"properties\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":5,\"character\":3},\"end\":{\"line\":5,\"character\":20}}}}\n"
			+ "]}");
	Set<Entry> result = (Set<Entry>) ((ResponseMessage)message).getResult();
	Assert.assertEquals(5, result.size());
	for (Entry e : result) {
		Assert.assertTrue(e.location.uri, e.location.uri.startsWith("file:/home/mistria"));
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testParseList_01() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<List<? extends Entry>>() {}.getType(),
			new TypeToken<List<? extends Entry>>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n" 
			+ " \"result\": [\n"
			+ "  {\"name\":\"$schema\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":1,\"character\":3},\"end\":{\"line\":1,\"character\":55}}}},\n"
			+ "  {\"name\":\"type\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":2,\"character\":3},\"end\":{\"line\":2,\"character\":19}}}},\n"
			+ "  {\"name\":\"title\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":3,\"character\":3},\"end\":{\"line\":3,\"character\":50}}}},\n"
			+ "  {\"name\":\"additionalProperties\",\"kind\":17,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":4,\"character\":4},\"end\":{\"line\":4,\"character\":32}}}},\n"
			+ "  {\"name\":\"properties\",\"kind\":15,\"location\":{\"uri\":\"file:/home/mistria/runtime-EclipseApplication-with-patch/EclipseConEurope/something.json\",\"range\":{\"start\":{\"line\":5,\"character\":3},\"end\":{\"line\":5,\"character\":20}}}}\n"
			+ "]}");
	List<? extends Entry> result = (List<? extends Entry>) ((ResponseMessage) message).getResult();
	Assert.assertEquals(5, result.size());
	for (Entry e : result) {
		Assert.assertTrue(e.location.uri, e.location.uri.startsWith("file:/home/mistria"));
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_01() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<String, List<Map<String,String>>>>() {}.getType(),
			new TypeToken<Either<String, Integer>>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ " \"result\": [\n"
			+ "  {\"name\":\"foo\"},\n"
			+ "  {\"name\":\"bar\"}\n"
			+ "]}");
	Either<String, List<Map<String, String>>> result = (Either<String, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isRight());
	for (Map<String, String> e : result.getRight()) {
		Assert.assertNotNull(e.get("name"));
	}
	message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n" 
			+ "\"result\": \"name\"\n"
			+ "}");
	result = (Either<String, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertFalse(result.isRight());
	Assert.assertEquals("name", result.getLeft());
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testParseEmptyList() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<List<? extends Entry>>() {}.getType(),
			new TypeToken<List<? extends Entry>>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ " \"result\": []}");
	List<Entry> result = (List<Entry>) ((ResponseMessage)message).getResult();
	Assert.assertEquals(0, result.size());
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_04() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<MyClass, List<? extends MyClass>>>() {}.getType(),
			new TypeToken<Object>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");

	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ "\"result\": {\n"
			+ "  value:\"foo\"\n"
			+ "}}");
	Either<MyClass, List<? extends MyClass>> result = (Either<MyClass, List<? extends MyClass>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isLeft());
	Assert.assertEquals("foo", result.getLeft().getValue());
	
	message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ "\"result\": [{\n"
			+ "  value:\"bar\"\n"
			+ "}]}");
	result = (Either<MyClass, List<? extends MyClass>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isRight());
	Assert.assertEquals("bar", result.getRight().get(0).getValue());
}
 

@Test
public void testParseNullList() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<List<? extends Entry>>() {}.getType(),
			new TypeToken<List<? extends Entry>>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id)->"foo");
	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ " \"result\": null}");
	Assert.assertNull(((ResponseMessage)message).getResult());
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_05() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<List<MyClass>, MyClassList>>() {}.getType(),
			new TypeToken<Object>() {}.getType()));
	MessageJsonHandler handler = new MessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");

	Message message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ "\"result\": [{\n"
			+ "  value:\"foo\"\n"
			+ "}]}");
	Either<List<MyClass>, MyClassList> result = (Either<List<MyClass>, MyClassList>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isLeft());
	Assert.assertEquals("foo", result.getLeft().get(0).getValue());
	
	message = handler.parseMessage("{\"jsonrpc\":\"2.0\","
			+ "\"id\":\"2\",\n"
			+ "\"result\": {\n"
			+ "  items: [{\n"
			+ "    value:\"bar\"\n"
			+ "}]}}");
	result = (Either<List<MyClass>, MyClassList>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isRight());
	Assert.assertEquals("bar", result.getRight().getItems().get(0).getValue());
}
 

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
	if (!Message.class.isAssignableFrom(typeToken.getRawType()))
		return null;
	return (TypeAdapter<T>) new MessageTypeAdapter(handler, gson);
}
 

@Override
public void consume(Message message) {
	if (message instanceof NotificationMessage) {
		NotificationMessage notificationMessage = (NotificationMessage) message;
		handleNotification(notificationMessage);
	} else if (message instanceof RequestMessage) {
		RequestMessage requestMessage = (RequestMessage) message;
		handleRequest(requestMessage);
	} else if (message instanceof ResponseMessage) {
		ResponseMessage responseMessage = (ResponseMessage) message;
		handleResponse(responseMessage);
	} else {
		LOG.log(Level.WARNING, "Unkown message type.", message);
	}
}
 

@Override
public void consume(Message message) throws MessageIssueException, JsonRpcException {
	List<MessageIssue> issues = validate(message);
	if (!issues.isEmpty()) {
		// Sort the messages in order to get a stable order (otherwise it depends on the JVM's reflection implementation)
		Collections.sort(issues, (issue1, issue2) -> issue1.getText().compareTo(issue2.getText()));
		throw new MessageIssueException(message, issues);
	} else if (delegate != null) {
		delegate.consume(message);
	}
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_01() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<String, List<Map<String,String>>>>() {}.getType(),
			new TypeToken<Either<String, Integer>>() {}.getType()));
	DebugMessageJsonHandler handler = new DebugMessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");
	Message message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ " \"body\": [\n"
			+ "  {\"name\":\"foo\"},\n"
			+ "  {\"name\":\"bar\"}\n"
			+ "]}");
	Either<String, List<Map<String, String>>> result = (Either<String, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isRight());
	for (Map<String, String> e : result.getRight()) {
		Assert.assertNotNull(e.get("name"));
	}
	message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ "\"body\": \"name\"\n"
			+ "}");
	result = (Either<String, List<Map<String,String>>>) ((ResponseMessage)message).getResult();
	Assert.assertFalse(result.isRight());
	Assert.assertEquals("name",result.getLeft());
}
 

@SuppressWarnings({ "unchecked" })
@Test
public void testEither_05() {
	Map<String, JsonRpcMethod> supportedMethods = new LinkedHashMap<>();
	supportedMethods.put("foo", JsonRpcMethod.request("foo",
			new TypeToken<Either<List<MyClass>, MyClassList>>() {}.getType(),
			new TypeToken<Object>() {}.getType()));
	DebugMessageJsonHandler handler = new DebugMessageJsonHandler(supportedMethods);
	handler.setMethodProvider((id) -> "foo");

	Message message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ "\"body\": [{\n"
			+ "  value:\"foo\"\n"
			+ "}]}");
	Either<List<MyClass>, MyClassList> result = (Either<List<MyClass>, MyClassList>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isLeft());
	Assert.assertEquals("foo", result.getLeft().get(0).getValue());

	message = handler.parseMessage("{"
			+ "\"seq\":2,\n"
			+ "\"type\":\"response\",\n"
			+ "\"success\":true,\n"
			+ "\"body\": {\n"
			+ "  items: [{\n"
			+ "    value:\"bar\"\n"
			+ "}]}}");
	result = (Either<List<MyClass>, MyClassList>) ((ResponseMessage)message).getResult();
	Assert.assertTrue(result.isRight());
	Assert.assertEquals("bar", result.getRight().getItems().get(0).getValue());
}
 

/**
 * Returns the deserialized params attribute of a JSON message payload
 */
@SuppressWarnings("unchecked")
public static <T> T getParams(CharSequence jsonPayload) {
	Message message = handler.parseMessage(jsonPayload);
	Method getParam = null;
	try {
		getParam = message.getClass().getMethod("getParams");
		Object params = getParam.invoke(message);
		return (T)params;
	} catch (Exception e) {
		throw new UnsupportedOperationException("Can't deserialize into class");
	}
}
 

public void logMessage(Message message) {
    if (message instanceof ResponseMessage) {
        ResponseMessage responseMessage = (ResponseMessage) message;
        if (responseMessage.getError() != null && (responseMessage.getId()
                .equals(Integer.toString(ResponseErrorCode.RequestCancelled.getValue())))) {
            LOG.error(new ResponseErrorException(responseMessage.getError()));
        }
    }
}
 

private void logMessage(Message message) {
    if (message instanceof ResponseMessage && ((ResponseMessage) message).getError() != null
            && ((ResponseMessage) message).getId()
            .equals(Integer.toString(ResponseErrorCode.RequestCancelled.getValue()))) {
        ResponseMessage responseMessage = (ResponseMessage) message;
        LOGGER.warn("", new ResponseErrorException(responseMessage.getError()));
    } else if (LOGGER.isDebugEnabled()) {
        LOGGER.info(message.getClass().getSimpleName() + '\n' + message.toString());
    }
}
 

private void handleMessage(Message message) {
    if (message instanceof ResponseMessage) {
        ResponseMessage responseMessage = (ResponseMessage) message;
        if (responseMessage.getResult() instanceof InitializeResult) {
            listener.initialize(languageServer, (InitializeResult) responseMessage.getResult());
        }
    }
}
 

@Override
public void consume(Message message) {
	if (sentException) {
		messages.add(message);
	} else {
		// throw an exception only for the first message
		sentException = true;
		throw new RuntimeException("Exception in consumer");
	}
}
 

@Override
public void handleMessage(Message message, LanguageServer languageServer, URI rootUri) {
	if (message instanceof ResponseMessage) {
		ResponseMessage responseMessage = (ResponseMessage)message;
		if (responseMessage.getResult() instanceof InitializeResult) {
			// enable validation: so far, no better way found than changing conf after init.
			DidChangeConfigurationParams params = new DidChangeConfigurationParams(getInitializationOptions(rootUri));
			languageServer.getWorkspaceService().didChangeConfiguration(params);
		}
	}
}
 

@Override
public void handleMessage(Message message, LanguageServer languageServer, URI rootUri) {
	if (message instanceof ResponseMessage) {
		ResponseMessage responseMessage = (ResponseMessage) message;
		if (responseMessage.getResult() instanceof InitializeResult) {
			// Send json/schemaAssociations notification to register JSON Schema on JSON
			// Language server side.
			JSonLanguageServerInterface server = (JSonLanguageServerInterface) languageServer;
			Map<String, List<String>> schemaAssociations = getSchemaAssociations();
			server.sendJSonchemaAssociations(schemaAssociations);
		}
	}
}