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http to http-invoker jsonrpc to http
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...-invoker/src/main/java/org/apache/dubbo/rpc/protocol/httpinvoker/HttpInvokerProtocol.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.dubbo.rpc.protocol.httpinvoker; | ||
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|
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| import org.apache.dubbo.common.URL; | ||
| import org.apache.dubbo.common.utils.StringUtils; | ||
| import org.apache.dubbo.common.Version; | ||
| import org.apache.dubbo.remoting.Constants; | ||
| import org.apache.dubbo.remoting.http.HttpBinder; | ||
| import org.apache.dubbo.remoting.http.HttpHandler; | ||
| import org.apache.dubbo.remoting.http.HttpServer; | ||
| import org.apache.dubbo.rpc.RpcContext; | ||
| import org.apache.dubbo.rpc.RpcException; | ||
| import org.apache.dubbo.rpc.protocol.AbstractProxyProtocol; | ||
| import org.apache.dubbo.rpc.service.GenericService; | ||
| import org.apache.dubbo.rpc.support.ProtocolUtils; | ||
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|
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| import org.aopalliance.intercept.MethodInvocation; | ||
| import org.springframework.remoting.RemoteAccessException; | ||
| import org.springframework.remoting.httpinvoker.HttpComponentsHttpInvokerRequestExecutor; | ||
| import org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean; | ||
| import org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter; | ||
| import org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor; | ||
| import org.springframework.remoting.support.RemoteInvocation; | ||
| import org.springframework.remoting.support.RemoteInvocationFactory; | ||
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|
||
| import javax.servlet.ServletException; | ||
| import javax.servlet.http.HttpServletRequest; | ||
| import javax.servlet.http.HttpServletResponse; | ||
| import java.io.IOException; | ||
| import java.net.HttpURLConnection; | ||
| import java.net.SocketTimeoutException; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
|
|
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| import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_TIMEOUT; | ||
| import static org.apache.dubbo.common.constants.CommonConstants.RELEASE_KEY; | ||
| import static org.apache.dubbo.common.constants.CommonConstants.TIMEOUT_KEY; | ||
| import static org.apache.dubbo.remoting.Constants.DUBBO_VERSION_KEY; | ||
| import static org.apache.dubbo.rpc.Constants.GENERIC_KEY; | ||
|
|
||
| /** | ||
| * HttpInvokerProtocol | ||
| */ | ||
| public class HttpInvokerProtocol extends AbstractProxyProtocol { | ||
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| public static final int DEFAULT_PORT = 80; | ||
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| private final Map<String, HttpServer> serverMap = new ConcurrentHashMap<String, HttpServer>(); | ||
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| private final Map<String, HttpInvokerServiceExporter> skeletonMap = new ConcurrentHashMap<String, HttpInvokerServiceExporter>(); | ||
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| private HttpBinder httpBinder; | ||
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| public HttpInvokerProtocol() { | ||
| super(RemoteAccessException.class); | ||
| } | ||
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| public void setHttpBinder(HttpBinder httpBinder) { | ||
| this.httpBinder = httpBinder; | ||
| } | ||
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| @Override | ||
| public int getDefaultPort() { | ||
| return DEFAULT_PORT; | ||
| } | ||
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| @Override | ||
| protected <T> Runnable doExport(final T impl, Class<T> type, URL url) throws RpcException { | ||
| String addr = getAddr(url); | ||
| HttpServer server = serverMap.get(addr); | ||
| if (server == null) { | ||
| server = httpBinder.bind(url, new InternalHandler()); | ||
| serverMap.put(addr, server); | ||
| } | ||
| final String path = url.getAbsolutePath(); | ||
| skeletonMap.put(path, createExporter(impl, type)); | ||
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| final String genericPath = path + "/" + GENERIC_KEY; | ||
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| skeletonMap.put(genericPath, createExporter(impl, GenericService.class)); | ||
| return new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| skeletonMap.remove(path); | ||
| skeletonMap.remove(genericPath); | ||
| } | ||
| }; | ||
| } | ||
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| private <T> HttpInvokerServiceExporter createExporter(T impl, Class<?> type) { | ||
| final HttpInvokerServiceExporter httpServiceExporter = new HttpInvokerServiceExporter(); | ||
| httpServiceExporter.setServiceInterface(type); | ||
| httpServiceExporter.setService(impl); | ||
| try { | ||
| httpServiceExporter.afterPropertiesSet(); | ||
| } catch (Exception e) { | ||
| throw new RpcException(e.getMessage(), e); | ||
| } | ||
| return httpServiceExporter; | ||
| } | ||
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| @Override | ||
| @SuppressWarnings("unchecked") | ||
| protected <T> T doRefer(final Class<T> serviceType, final URL url) throws RpcException { | ||
| final String generic = url.getParameter(GENERIC_KEY); | ||
| final boolean isGeneric = ProtocolUtils.isGeneric(generic) || serviceType.equals(GenericService.class); | ||
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| final HttpInvokerProxyFactoryBean httpProxyFactoryBean = new HttpInvokerProxyFactoryBean(); | ||
| httpProxyFactoryBean.setRemoteInvocationFactory(new RemoteInvocationFactory() { | ||
| @Override | ||
| public RemoteInvocation createRemoteInvocation(MethodInvocation methodInvocation) { | ||
| RemoteInvocation invocation; | ||
| /* | ||
| package was renamed to 'org.apache.dubbo' in v2.7.0, so only provider versions after v2.7.0 can | ||
| recognize org.apache.xxx.HttpRemoteInvocation'. | ||
| */ | ||
| if (Version.isRelease270OrHigher(url.getParameter(RELEASE_KEY))) { | ||
| invocation = new HttpRemoteInvocation(methodInvocation); | ||
| } else { | ||
| /* | ||
| The customized 'com.alibaba.dubbo.rpc.protocol.http.HttpRemoteInvocation' was firstly introduced | ||
| in v2.6.3. The main purpose is to support transformation of attachments in HttpInvokerProtocol, see | ||
| https://github.com/apache/dubbo/pull/1827. To guarantee interoperability with lower | ||
| versions, we need to check if the provider is v2.6.3 or higher before sending customized | ||
| HttpRemoteInvocation. | ||
| */ | ||
| if (Version.isRelease263OrHigher(url.getParameter(DUBBO_VERSION_KEY))) { | ||
| invocation = new com.alibaba.dubbo.rpc.protocol.http.HttpRemoteInvocation(methodInvocation); | ||
| } else { | ||
| invocation = new RemoteInvocation(methodInvocation); | ||
| } | ||
| } | ||
| if (isGeneric) { | ||
| invocation.addAttribute(GENERIC_KEY, generic); | ||
| } | ||
| return invocation; | ||
| } | ||
| }); | ||
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| String key = url.toIdentityString(); | ||
| if (isGeneric) { | ||
| key = key + "/" + GENERIC_KEY; | ||
| } | ||
|
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| httpProxyFactoryBean.setServiceUrl(key.replace("http-invoker","http")); | ||
| httpProxyFactoryBean.setServiceInterface(serviceType); | ||
| String client = url.getParameter(Constants.CLIENT_KEY); | ||
| if (StringUtils.isEmpty(client) || "simple".equals(client)) { | ||
| SimpleHttpInvokerRequestExecutor httpInvokerRequestExecutor = new SimpleHttpInvokerRequestExecutor() { | ||
| @Override | ||
| protected void prepareConnection(HttpURLConnection con, | ||
| int contentLength) throws IOException { | ||
| super.prepareConnection(con, contentLength); | ||
| con.setReadTimeout(url.getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT)); | ||
| con.setConnectTimeout(url.getParameter(Constants.CONNECT_TIMEOUT_KEY, Constants.DEFAULT_CONNECT_TIMEOUT)); | ||
| } | ||
| }; | ||
| httpProxyFactoryBean.setHttpInvokerRequestExecutor(httpInvokerRequestExecutor); | ||
| } else if ("commons".equals(client)) { | ||
| HttpComponentsHttpInvokerRequestExecutor httpInvokerRequestExecutor = new HttpComponentsHttpInvokerRequestExecutor(); | ||
| httpInvokerRequestExecutor.setReadTimeout(url.getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT)); | ||
| httpInvokerRequestExecutor.setConnectTimeout(url.getParameter(Constants.CONNECT_TIMEOUT_KEY, Constants.DEFAULT_CONNECT_TIMEOUT)); | ||
| httpProxyFactoryBean.setHttpInvokerRequestExecutor(httpInvokerRequestExecutor); | ||
| } else { | ||
| throw new IllegalStateException("Unsupported http protocol client " + client + ", only supported: simple, commons"); | ||
| } | ||
| httpProxyFactoryBean.afterPropertiesSet(); | ||
| return (T) httpProxyFactoryBean.getObject(); | ||
| } | ||
|
|
||
| @Override | ||
| protected int getErrorCode(Throwable e) { | ||
| if (e instanceof RemoteAccessException) { | ||
| e = e.getCause(); | ||
| } | ||
| if (e != null) { | ||
| Class<?> cls = e.getClass(); | ||
| if (SocketTimeoutException.class.equals(cls)) { | ||
| return RpcException.TIMEOUT_EXCEPTION; | ||
| } else if (IOException.class.isAssignableFrom(cls)) { | ||
| return RpcException.NETWORK_EXCEPTION; | ||
| } else if (ClassNotFoundException.class.isAssignableFrom(cls)) { | ||
| return RpcException.SERIALIZATION_EXCEPTION; | ||
| } | ||
| } | ||
| return super.getErrorCode(e); | ||
| } | ||
|
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| private class InternalHandler implements HttpHandler { | ||
|
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| @Override | ||
| public void handle(HttpServletRequest request, HttpServletResponse response) | ||
| throws IOException, ServletException { | ||
| String uri = request.getRequestURI(); | ||
| HttpInvokerServiceExporter skeleton = skeletonMap.get(uri); | ||
| if (!"POST".equalsIgnoreCase(request.getMethod())) { | ||
| response.setStatus(500); | ||
| } else { | ||
| RpcContext.getContext().setRemoteAddress(request.getRemoteAddr(), request.getRemotePort()); | ||
| try { | ||
| skeleton.handleRequest(request, response); | ||
| } catch (Throwable e) { | ||
| throw new ServletException(e); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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1
...rpc-http-invoker/src/main/resources/META-INF/dubbo/internal/org.apache.dubbo.rpc.Protocol
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1 @@ | ||
| http-invoker=org.apache.dubbo.rpc.protocol.httpinvoker.HttpInvokerProtocol |
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