Examples with RpcException com.alibaba.dubbo.rpc.RpcException used on opensource projects

Example 56 with RpcException

use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.

the class RestProtocol method doExport.

protected <T> Runnable doExport(T impl, Class<T> type, URL url) throws RpcException {
    String addr = getAddr(url);
    Class implClass = ServiceClassHolder.getInstance().popServiceClass();
    RestServer server = servers.get(addr);
    if (server == null) {
        server = serverFactory.createServer(url.getParameter(Constants.SERVER_KEY, "jetty"));
        server.start(url);
        servers.put(addr, server);
    }
    String contextPath = getContextPath(url);
    if ("servlet".equalsIgnoreCase(url.getParameter(Constants.SERVER_KEY, "jetty"))) {
        ServletContext servletContext = ServletManager.getInstance().getServletContext(ServletManager.EXTERNAL_SERVER_PORT);
        if (servletContext == null) {
            throw new RpcException("No servlet context found. Since you are using server='servlet', " + "make sure that you've configured " + BootstrapListener.class.getName() + " in web.xml");
        }
        String webappPath = servletContext.getContextPath();
        if (StringUtils.isNotEmpty(webappPath)) {
            webappPath = webappPath.substring(1);
            if (!contextPath.startsWith(webappPath)) {
                throw new RpcException("Since you are using server='servlet', " + "make sure that the 'contextpath' property starts with the path of external webapp");
            }
            contextPath = contextPath.substring(webappPath.length());
            if (contextPath.startsWith("/")) {
                contextPath = contextPath.substring(1);
            }
        }
    }
    final Class resourceDef = GetRestful.getRootResourceClass(implClass) != null ? implClass : type;
    server.deploy(resourceDef, impl, contextPath);
    final RestServer s = server;
    return new Runnable() {

        public void run() {
            // TODO due to dubbo's current architecture,
            // it will be called from registry protocol in the shutdown process and won't appear in logs
            s.undeploy(resourceDef);
        }
    };
}

Example 57 with RpcException

use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.

the class RestProtocol method doRefer.

protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException {
    if (connectionMonitor == null) {
        connectionMonitor = new ConnectionMonitor();
    }
    // TODO more configs to add
    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
    // 20 is the default maxTotal of current PoolingClientConnectionManager
    connectionManager.setMaxTotal(url.getParameter(Constants.CONNECTIONS_KEY, 20));
    connectionManager.setDefaultMaxPerRoute(url.getParameter(Constants.CONNECTIONS_KEY, 20));
    connectionMonitor.addConnectionManager(connectionManager);
    RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT)).setSocketTimeout(url.getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT)).build();
    SocketConfig socketConfig = SocketConfig.custom().setSoKeepAlive(true).setTcpNoDelay(true).build();
    CloseableHttpClient httpClient = HttpClientBuilder.create().setKeepAliveStrategy(new ConnectionKeepAliveStrategy() {

        public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
            HeaderElementIterator it = new BasicHeaderElementIterator(response.headerIterator(HTTP.CONN_KEEP_ALIVE));
            while (it.hasNext()) {
                HeaderElement he = it.nextElement();
                String param = he.getName();
                String value = he.getValue();
                if (value != null && param.equalsIgnoreCase("timeout")) {
                    return Long.parseLong(value) * 1000;
                }
            }
            // TODO constant
            return 30 * 1000;
        }
    }).setDefaultRequestConfig(requestConfig).setDefaultSocketConfig(socketConfig).build();
    ApacheHttpClient4Engine engine = new ApacheHttpClient4Engine(httpClient);
    ResteasyClient client = new ResteasyClientBuilder().httpEngine(engine).build();
    clients.add(client);
    client.register(RpcContextFilter.class);
    for (String clazz : Constants.COMMA_SPLIT_PATTERN.split(url.getParameter(Constants.EXTENSION_KEY, ""))) {
        if (!StringUtils.isEmpty(clazz)) {
            try {
                client.register(Thread.currentThread().getContextClassLoader().loadClass(clazz.trim()));
            } catch (ClassNotFoundException e) {
                throw new RpcException("Error loading JAX-RS extension class: " + clazz.trim(), e);
            }
        }
    }
    // TODO protocol
    ResteasyWebTarget target = client.target("http://" + url.getHost() + ":" + url.getPort() + "/" + getContextPath(url));
    return target.proxy(serviceType);
}

Example 58 with RpcException

use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.

the class RmiProtocol method doExport.

protected <T> Runnable doExport(final T impl, Class<T> type, URL url) throws RpcException {
    final RmiServiceExporter rmiServiceExporter = new RmiServiceExporter();
    rmiServiceExporter.setRegistryPort(url.getPort());
    rmiServiceExporter.setServiceName(url.getPath());
    rmiServiceExporter.setServiceInterface(type);
    rmiServiceExporter.setService(impl);
    try {
        rmiServiceExporter.afterPropertiesSet();
    } catch (RemoteException e) {
        throw new RpcException(e.getMessage(), e);
    }
    return new Runnable() {

        public void run() {
            try {
                rmiServiceExporter.destroy();
            } catch (Throwable e) {
                logger.warn(e.getMessage(), e);
            }
        }
    };
}

Example 59 with RpcException

use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.

the class ThriftCodec method decode.

private Object decode(TProtocol protocol) throws IOException {
    // version
    String serviceName;
    long id;
    TMessage message;
    try {
        protocol.readI16();
        protocol.readByte();
        serviceName = protocol.readString();
        id = protocol.readI64();
        message = protocol.readMessageBegin();
    } catch (TException e) {
        throw new IOException(e.getMessage(), e);
    }
    if (message.type == TMessageType.CALL) {
        RpcInvocation result = new RpcInvocation();
        result.setAttachment(Constants.INTERFACE_KEY, serviceName);
        result.setMethodName(message.name);
        String argsClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(ThriftClassNameGenerator.NAME).generateArgsClassName(serviceName, message.name);
        if (StringUtils.isEmpty(argsClassName)) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, "The specified interface name incorrect.");
        }
        Class clazz = cachedClass.get(argsClassName);
        if (clazz == null) {
            try {
                clazz = ClassHelper.forNameWithThreadContextClassLoader(argsClassName);
                cachedClass.putIfAbsent(argsClassName, clazz);
            } catch (ClassNotFoundException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        TBase args;
        try {
            args = (TBase) clazz.newInstance();
        } catch (InstantiationException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        try {
            args.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        List<Object> parameters = new ArrayList<Object>();
        List<Class<?>> parameterTypes = new ArrayList<Class<?>>();
        int index = 1;
        while (true) {
            TFieldIdEnum fieldIdEnum = args.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            String fieldName = fieldIdEnum.getFieldName();
            String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
            Method getMethod;
            try {
                getMethod = clazz.getMethod(getMethodName);
            } catch (NoSuchMethodException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            parameterTypes.add(getMethod.getReturnType());
            try {
                parameters.add(getMethod.invoke(args));
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (InvocationTargetException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        result.setArguments(parameters.toArray());
        result.setParameterTypes(parameterTypes.toArray(new Class[parameterTypes.size()]));
        Request request = new Request(id);
        request.setData(result);
        cachedRequest.putIfAbsent(id, RequestData.create(message.seqid, serviceName, message.name));
        return request;
    } else if (message.type == TMessageType.EXCEPTION) {
        TApplicationException exception;
        try {
            exception = TApplicationException.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new IOException(e.getMessage(), e);
        }
        RpcResult result = new RpcResult();
        result.setException(new RpcException(exception.getMessage()));
        Response response = new Response();
        response.setResult(result);
        response.setId(id);
        return response;
    } else if (message.type == TMessageType.REPLY) {
        String resultClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(ThriftClassNameGenerator.NAME).generateResultClassName(serviceName, message.name);
        if (StringUtils.isEmpty(resultClassName)) {
            throw new IllegalArgumentException(new StringBuilder(32).append("Could not infer service result class name from service name ").append(serviceName).append(", the service name you specified may not generated by thrift idl compiler").toString());
        }
        Class<?> clazz = cachedClass.get(resultClassName);
        if (clazz == null) {
            try {
                clazz = ClassHelper.forNameWithThreadContextClassLoader(resultClassName);
                cachedClass.putIfAbsent(resultClassName, clazz);
            } catch (ClassNotFoundException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        TBase<?, ? extends TFieldIdEnum> result;
        try {
            result = (TBase<?, ?>) clazz.newInstance();
        } catch (InstantiationException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        try {
            result.read(protocol);
            protocol.readMessageEnd();
        } catch (TException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
        Object realResult = null;
        int index = 0;
        while (true) {
            TFieldIdEnum fieldIdEnum = result.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            Field field;
            try {
                field = clazz.getDeclaredField(fieldIdEnum.getFieldName());
                field.setAccessible(true);
            } catch (NoSuchFieldException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            try {
                realResult = field.get(result);
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
            if (realResult != null) {
                break;
            }
        }
        Response response = new Response();
        response.setId(id);
        RpcResult rpcResult = new RpcResult();
        if (realResult instanceof Throwable) {
            rpcResult.setException((Throwable) realResult);
        } else {
            rpcResult.setValue(realResult);
        }
        response.setResult(rpcResult);
        return response;
    } else {
        // Impossible
        throw new IOException();
    }
}

Example 60 with RpcException

use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.

the class ThriftCodec method encodeResponse.

private void encodeResponse(Channel channel, ChannelBuffer buffer, Response response) throws IOException {
    RpcResult result = (RpcResult) response.getResult();
    RequestData rd = cachedRequest.get(response.getId());
    String resultClassName = ExtensionLoader.getExtensionLoader(ClassNameGenerator.class).getExtension(channel.getUrl().getParameter(ThriftConstants.CLASS_NAME_GENERATOR_KEY, ThriftClassNameGenerator.NAME)).generateResultClassName(rd.serviceName, rd.methodName);
    if (StringUtils.isEmpty(resultClassName)) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, new StringBuilder(32).append("Could not encode response, the specified interface may be incorrect.").toString());
    }
    Class clazz = cachedClass.get(resultClassName);
    if (clazz == null) {
        try {
            clazz = ClassHelper.forNameWithThreadContextClassLoader(resultClassName);
            cachedClass.putIfAbsent(resultClassName, clazz);
        } catch (ClassNotFoundException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
    }
    TBase resultObj;
    try {
        resultObj = (TBase) clazz.newInstance();
    } catch (InstantiationException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    } catch (IllegalAccessException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    }
    TApplicationException applicationException = null;
    TMessage message;
    if (result.hasException()) {
        Throwable throwable = result.getException();
        int index = 1;
        boolean found = false;
        while (true) {
            TFieldIdEnum fieldIdEnum = resultObj.fieldForId(index++);
            if (fieldIdEnum == null) {
                break;
            }
            String fieldName = fieldIdEnum.getFieldName();
            String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
            String setMethodName = ThriftUtils.generateSetMethodName(fieldName);
            Method getMethod;
            Method setMethod;
            try {
                getMethod = clazz.getMethod(getMethodName);
                if (getMethod.getReturnType().equals(throwable.getClass())) {
                    found = true;
                    setMethod = clazz.getMethod(setMethodName, throwable.getClass());
                    setMethod.invoke(resultObj, throwable);
                }
            } catch (NoSuchMethodException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (InvocationTargetException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            } catch (IllegalAccessException e) {
                throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
            }
        }
        if (!found) {
            applicationException = new TApplicationException(throwable.getMessage());
        }
    } else {
        Object realResult = result.getResult();
        // result field id is 0
        String fieldName = resultObj.fieldForId(0).getFieldName();
        String setMethodName = ThriftUtils.generateSetMethodName(fieldName);
        String getMethodName = ThriftUtils.generateGetMethodName(fieldName);
        Method getMethod;
        Method setMethod;
        try {
            getMethod = clazz.getMethod(getMethodName);
            setMethod = clazz.getMethod(setMethodName, getMethod.getReturnType());
            setMethod.invoke(resultObj, realResult);
        } catch (NoSuchMethodException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (InvocationTargetException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        } catch (IllegalAccessException e) {
            throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
        }
    }
    if (applicationException != null) {
        message = new TMessage(rd.methodName, TMessageType.EXCEPTION, rd.id);
    } else {
        message = new TMessage(rd.methodName, TMessageType.REPLY, rd.id);
    }
    RandomAccessByteArrayOutputStream bos = new RandomAccessByteArrayOutputStream(1024);
    TIOStreamTransport transport = new TIOStreamTransport(bos);
    TBinaryProtocol protocol = new TBinaryProtocol(transport);
    int messageLength;
    int headerLength;
    byte[] bytes = new byte[4];
    try {
        // magic
        protocol.writeI16(MAGIC);
        // message length
        protocol.writeI32(Integer.MAX_VALUE);
        // message header length
        protocol.writeI16(Short.MAX_VALUE);
        // version
        protocol.writeByte(VERSION);
        // service name
        protocol.writeString(rd.serviceName);
        // id
        protocol.writeI64(response.getId());
        protocol.getTransport().flush();
        headerLength = bos.size();
        // message
        protocol.writeMessageBegin(message);
        switch(message.type) {
            case TMessageType.EXCEPTION:
                applicationException.write(protocol);
                break;
            case TMessageType.REPLY:
                resultObj.write(protocol);
                break;
        }
        protocol.writeMessageEnd();
        protocol.getTransport().flush();
        int oldIndex = messageLength = bos.size();
        try {
            TFramedTransport.encodeFrameSize(messageLength, bytes);
            bos.setWriteIndex(MESSAGE_LENGTH_INDEX);
            protocol.writeI32(messageLength);
            bos.setWriteIndex(MESSAGE_HEADER_LENGTH_INDEX);
            protocol.writeI16((short) (0xffff & headerLength));
        } finally {
            bos.setWriteIndex(oldIndex);
        }
    } catch (TException e) {
        throw new RpcException(RpcException.SERIALIZATION_EXCEPTION, e.getMessage(), e);
    }
    buffer.writeBytes(bytes);
    buffer.writeBytes(bos.toByteArray());
}