| /* |
| * 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.hessian; |
| |
| import org.apache.dubbo.common.URL; |
| import org.apache.dubbo.remoting.RemotingServer; |
| import org.apache.dubbo.remoting.http.HttpBinder; |
| import org.apache.dubbo.remoting.http.HttpHandler; |
| import org.apache.dubbo.rpc.ProtocolServer; |
| 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; |
| import org.apache.dubbo.serialize.hessian.dubbo.Hessian2FactoryInitializer; |
| |
| import com.caucho.hessian.HessianException; |
| import com.caucho.hessian.client.HessianConnectionException; |
| import com.caucho.hessian.client.HessianConnectionFactory; |
| import com.caucho.hessian.client.HessianProxyFactory; |
| import com.caucho.hessian.io.HessianMethodSerializationException; |
| import com.caucho.hessian.server.HessianSkeleton; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import java.io.IOException; |
| import java.net.SocketTimeoutException; |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_TIMEOUT; |
| import static org.apache.dubbo.common.constants.CommonConstants.TIMEOUT_KEY; |
| import static org.apache.dubbo.remoting.Constants.CLIENT_KEY; |
| import static org.apache.dubbo.remoting.Constants.DEFAULT_EXCHANGER; |
| import static org.apache.dubbo.rpc.Constants.GENERIC_KEY; |
| import static org.apache.dubbo.rpc.protocol.hessian.Constants.DEFAULT_HESSIAN2_REQUEST; |
| import static org.apache.dubbo.rpc.protocol.hessian.Constants.DEFAULT_HESSIAN_OVERLOAD_METHOD; |
| import static org.apache.dubbo.rpc.protocol.hessian.Constants.DEFAULT_HTTP_CLIENT; |
| import static org.apache.dubbo.rpc.protocol.hessian.Constants.HESSIAN2_REQUEST_KEY; |
| import static org.apache.dubbo.rpc.protocol.hessian.Constants.HESSIAN_OVERLOAD_METHOD_KEY; |
| |
| /** |
| * http rpc support. |
| */ |
| public class HessianProtocol extends AbstractProxyProtocol { |
| |
| private final Map<String, HessianSkeleton> skeletonMap = new ConcurrentHashMap<String, HessianSkeleton>(); |
| |
| private HttpBinder httpBinder; |
| |
| public HessianProtocol() { |
| super(HessianException.class); |
| } |
| |
| public void setHttpBinder(HttpBinder httpBinder) { |
| this.httpBinder = httpBinder; |
| } |
| |
| @Override |
| public int getDefaultPort() { |
| return 80; |
| } |
| |
| @Override |
| protected <T> Runnable doExport(T impl, Class<T> type, URL url) throws RpcException { |
| String addr = getAddr(url); |
| ProtocolServer protocolServer = serverMap.get(addr); |
| if (protocolServer == null) { |
| RemotingServer remotingServer = httpBinder.bind(url, new HessianHandler()); |
| serverMap.put(addr, new ProxyProtocolServer(remotingServer)); |
| } |
| final String path = url.getAbsolutePath(); |
| final HessianSkeleton skeleton = new HessianSkeleton(impl, type); |
| skeletonMap.put(path, skeleton); |
| |
| final String genericPath = path + "/" + GENERIC_KEY; |
| skeletonMap.put(genericPath, new HessianSkeleton(impl, GenericService.class)); |
| |
| return new Runnable() { |
| @Override |
| public void run() { |
| skeletonMap.remove(path); |
| skeletonMap.remove(genericPath); |
| } |
| }; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| protected <T> T doRefer(Class<T> serviceType, URL url) throws RpcException { |
| String generic = url.getParameter(GENERIC_KEY); |
| boolean isGeneric = ProtocolUtils.isGeneric(generic) || serviceType.equals(GenericService.class); |
| if (isGeneric) { |
| RpcContext.getContext().setAttachment(GENERIC_KEY, generic); |
| url = url.setPath(url.getPath() + "/" + GENERIC_KEY); |
| } |
| |
| HessianProxyFactory hessianProxyFactory = new HessianProxyFactory(); |
| boolean isHessian2Request = url.getParameter(HESSIAN2_REQUEST_KEY, DEFAULT_HESSIAN2_REQUEST); |
| hessianProxyFactory.setHessian2Request(isHessian2Request); |
| boolean isOverloadEnabled = url.getParameter(HESSIAN_OVERLOAD_METHOD_KEY, DEFAULT_HESSIAN_OVERLOAD_METHOD); |
| hessianProxyFactory.setOverloadEnabled(isOverloadEnabled); |
| String client = url.getParameter(CLIENT_KEY, DEFAULT_HTTP_CLIENT); |
| if ("httpclient".equals(client)) { |
| HessianConnectionFactory factory = new HttpClientConnectionFactory(); |
| factory.setHessianProxyFactory(hessianProxyFactory); |
| hessianProxyFactory.setConnectionFactory(factory); |
| } else if (client != null && client.length() > 0 && !DEFAULT_HTTP_CLIENT.equals(client)) { |
| throw new IllegalStateException("Unsupported http protocol client=\"" + client + "\"!"); |
| } else { |
| HessianConnectionFactory factory = new DubboHessianURLConnectionFactory(); |
| factory.setHessianProxyFactory(hessianProxyFactory); |
| hessianProxyFactory.setConnectionFactory(factory); |
| } |
| int timeout = url.getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT); |
| hessianProxyFactory.setConnectTimeout(timeout); |
| hessianProxyFactory.setReadTimeout(timeout); |
| hessianProxyFactory.setSerializerFactory(Hessian2FactoryInitializer.getInstance().getSerializerFactory()); |
| return (T) hessianProxyFactory.create(serviceType, new URL("http", url.getHost(), url.getPort(), url.getPath(), url.getParameters()).toJavaURL(), Thread.currentThread().getContextClassLoader()); |
| } |
| |
| @Override |
| protected int getErrorCode(Throwable e) { |
| if (e instanceof HessianConnectionException) { |
| if (e.getCause() != null) { |
| Class<?> cls = e.getCause().getClass(); |
| if (SocketTimeoutException.class.equals(cls)) { |
| return RpcException.TIMEOUT_EXCEPTION; |
| } |
| } |
| return RpcException.NETWORK_EXCEPTION; |
| } else if (e instanceof HessianMethodSerializationException) { |
| return RpcException.SERIALIZATION_EXCEPTION; |
| } |
| return super.getErrorCode(e); |
| } |
| |
| @Override |
| public void destroy() { |
| super.destroy(); |
| for (String key : new ArrayList<String>(serverMap.keySet())) { |
| ProtocolServer protocolServer = serverMap.remove(key); |
| if (protocolServer != null) { |
| try { |
| if (logger.isInfoEnabled()) { |
| logger.info("Close hessian server " + protocolServer.getUrl()); |
| } |
| protocolServer.close(); |
| } catch (Throwable t) { |
| logger.warn(t.getMessage(), t); |
| } |
| } |
| } |
| } |
| |
| private class HessianHandler implements HttpHandler { |
| |
| @Override |
| public void handle(HttpServletRequest request, HttpServletResponse response) |
| throws IOException, ServletException { |
| String uri = request.getRequestURI(); |
| HessianSkeleton skeleton = skeletonMap.get(uri); |
| if (!"POST".equalsIgnoreCase(request.getMethod())) { |
| response.setStatus(500); |
| } else { |
| RpcContext.getContext().setRemoteAddress(request.getRemoteAddr(), request.getRemotePort()); |
| |
| Map<String, String> attachments = new HashMap<>(); |
| Enumeration<String> enumeration = request.getHeaderNames(); |
| while (enumeration.hasMoreElements()) { |
| String key = enumeration.nextElement(); |
| if (key.startsWith(DEFAULT_EXCHANGER)) { |
| attachments.put(key.substring(DEFAULT_EXCHANGER.length()), request.getHeader(key)); |
| } |
| } |
| HessianProtocolFilter.setAttachments(attachments); |
| |
| try { |
| skeleton.invoke(request.getInputStream(), response.getOutputStream(), Hessian2FactoryInitializer.getInstance().getSerializerFactory()); |
| } catch (Throwable e) { |
| throw new ServletException(e); |
| } |
| } |
| } |
| |
| } |
| |
| } |