From 7eafc42e6b7b01d9dfd8d7f4f1e68969d3ace806 Mon Sep 17 00:00:00 2001 From: rfeng Date: Mon, 10 Oct 2011 05:01:04 +0000 Subject: Use home-grown JSONRPC implementation git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1180780 13f79535-47bb-0310-9956-ffa450edef68 --- .../binding/jsonrpc/protocol/JsonRpcServlet.java | 313 --------------------- 1 file changed, 313 deletions(-) delete mode 100644 sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcServlet.java (limited to 'sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcServlet.java') diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcServlet.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcServlet.java deleted file mode 100644 index b14803a9eb..0000000000 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcServlet.java +++ /dev/null @@ -1,313 +0,0 @@ -/* - * 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.tuscany.sca.binding.jsonrpc.protocol; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStreamReader; -import java.io.OutputStream; -import java.io.StringWriter; -import java.io.UnsupportedEncodingException; -import java.util.List; - -import javax.servlet.ServletException; -import javax.servlet.http.HttpServlet; -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; - -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.binding.jsonrpc.provider.JavaToSmd; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Message; -import org.apache.tuscany.sca.invocation.MessageFactory; -import org.apache.tuscany.sca.runtime.RuntimeEndpoint; -import org.json.JSONArray; -import org.json.JSONObject; -import org.oasisopen.sca.ServiceRuntimeException; - -public class JsonRpcServlet extends HttpServlet { - private static final long serialVersionUID = 1L; - - transient MessageFactory messageFactory; - - transient Binding binding; - transient String serviceName; - transient Object serviceInstance; - transient RuntimeEndpoint endpoint; - transient Class serviceInterface; - - public JsonRpcServlet(MessageFactory messageFactory, - RuntimeEndpoint endpoint, - Class serviceInterface, - Object serviceInstance) { - this.endpoint = endpoint; - this.messageFactory = messageFactory; - this.binding = endpoint.getBinding(); - this.serviceName = binding.getName(); - this.serviceInterface = serviceInterface; - this.serviceInstance = serviceInstance; - } - - @Override - protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, - IOException { - - if ("smd".equals(request.getQueryString())) { - handleSMDRequest(request, response); - return; - } - try { - handleJsonRpcInvocation(request, response); - - } catch (RuntimeException re) { - if (re.getCause() instanceof javax.security.auth.login.LoginException) { - response.setHeader("WWW-Authenticate", "BASIC realm=\"" + "ldap-realm" + "\""); - response.sendError(HttpServletResponse.SC_UNAUTHORIZED); - } else { - throw re; - } - } - - } - - private void handleJsonRpcInvocation(HttpServletRequest request, HttpServletResponse response) - throws UnsupportedEncodingException, IOException, ServletException { - // Decode using the charset in the request if it exists otherwise - // use UTF-8 as this is what all browser implementations use. - // The JSON-RPC-Java JavaScript client is ASCII clean so it - // although here we can correctly handle data from other clients - // that do not escape non ASCII data - String charset = request.getCharacterEncoding(); - if (charset == null) { - charset = "UTF-8"; - } - // default POST style - BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset)); - StringWriter data = new StringWriter(); - // Read the request into charArray - char[] buf = new char[4096]; - int ret; - while ((ret = in.read(buf, 0, 4096)) != -1) { - data.write(buf, 0, ret); - } - - String json = data.toString().trim(); - try { - if (json.startsWith("[")) { - JSONArray input = new JSONArray(json); - JsonRpc20BatchRequest batchReq = new JsonRpc20BatchRequest(input); - for (int i = 0; i < batchReq.getRequests().size(); i++) { - JsonRpc20Result result = batchReq.getBatchResponse().getResponses().get(i); - if (result == null) { - result = invoke(batchReq.getRequests().get(i)); - batchReq.getBatchResponse().getResponses().set(i, result); - } - } - JSONArray responses = batchReq.getBatchResponse().toJSONArray(); - responses.write(response.getWriter()); - } else { - JSONObject input = new JSONObject(data.toString()); - if (input.has("jsonrpc")) { - JsonRpc20Request jsonReq = new JsonRpc20Request(input); - JsonRpc20Result jsonResult = invoke(jsonReq); - jsonResult.write(response.getWriter()); - } else { - JsonRpc10Request jsonReq = new JsonRpc10Request(input); - JsonRpc10Response jsonResult = invoke(jsonReq); - jsonResult.write(response.getWriter()); - } - } - } catch (Throwable e) { - throw new ServletException(e); - } - } - - private JsonRpc20Result invoke(JsonRpc20Request request) { - - // invoke the request - String method = request.getMethod(); - Object[] params = request.getParams(); - - Object result = null; - Operation jsonOperation = findOperation(method); - - // Invoke the get operation on the service implementation - Message requestMessage = messageFactory.createMessage(); - requestMessage.setOperation(jsonOperation); - - requestMessage.getHeaders().put("RequestMessage", request); - requestMessage.setBody(params); - - Message responseMessage = null; - try { - - //result = wire.invoke(jsonOperation, args); - responseMessage = endpoint.getInvocationChain(jsonOperation).getHeadInvoker().invoke(requestMessage); - } catch (RuntimeException re) { - if (re.getCause() instanceof javax.security.auth.login.LoginException) { - throw re; - } else { - JsonRpc20Error error = new JsonRpc20Error(request.getId(), re); - return error; - } - } - - if (!responseMessage.isFault()) { - - if (jsonOperation.getOutputType().getLogical().size() == 0) { - // void operation (json-rpc notification) - try { - JsonRpc20Response response = new JsonRpc20Response(request.getId(), null); - return response; - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - - } else { - // regular operation returning some value - try { - result = responseMessage.getBody(); - JsonRpc20Response response = new JsonRpc20Response(request.getId(), result); - //get response to send to client - return response; - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - } - - } else { - //exception thrown while executing the invocation - Throwable exception = (Throwable)responseMessage.getBody(); - - JsonRpc20Error error = new JsonRpc20Error(request.getId(), exception); - return error; - } - - } - - private JsonRpc10Response invoke(JsonRpc10Request request) { - - // invoke the request - String method = request.getMethod(); - Object[] params = request.getParams(); - - Object result = null; - Operation jsonOperation = findOperation(method); - - // Invoke the get operation on the service implementation - Message requestMessage = messageFactory.createMessage(); - requestMessage.setOperation(jsonOperation); - - requestMessage.getHeaders().put("RequestMessage", request); - requestMessage.setBody(params); - - Message responseMessage = null; - try { - - //result = wire.invoke(jsonOperation, args); - responseMessage = endpoint.getInvocationChain(jsonOperation).getHeadInvoker().invoke(requestMessage); - } catch (RuntimeException re) { - if (re.getCause() instanceof javax.security.auth.login.LoginException) { - throw re; - } else { - JsonRpc10Response error = new JsonRpc10Response(request.getId(), null, re.toString()); - return error; - } - } - - if (!responseMessage.isFault()) { - - if (jsonOperation.getOutputType().getLogical().size() == 0) { - // void operation (json-rpc notification) - try { - JsonRpc10Response response = new JsonRpc10Response(request.getId(), JSONObject.NULL, null); - return response; - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - - } else { - // regular operation returning some value - try { - result = responseMessage.getBody(); - JsonRpc10Response response = new JsonRpc10Response(request.getId(), result, null); - //get response to send to client - return response; - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - } - - } else { - //exception thrown while executing the invocation - Throwable exception = (Throwable)responseMessage.getBody(); - - JsonRpc10Response error = - new JsonRpc10Response(request.getId(), null, JsonRpc20Error.stackTrace(exception)); - return error; - } - - } - - /** - * Find the operation from the component service contract - * @param componentService - * @param method - * @return - */ - private Operation findOperation(String method) { - if (method.contains(".")) { - method = method.substring(method.lastIndexOf(".") + 1); - } - - List operations = endpoint.getComponentServiceInterfaceContract().getInterface().getOperations(); - //endpoint.getComponentTypeServiceInterfaceContract().getInterface().getOperations(); - //componentService.getBindingProvider(binding).getBindingInterfaceContract().getInterface().getOperations(); - - Operation result = null; - for (Operation o : operations) { - if (o.isDynamic()) - return o; - if (o.getName().equalsIgnoreCase(method)) { - result = o; - break; - } - } - - return result; - } - - /** - * handles requests for the SMD descriptor for a service - */ - protected void handleSMDRequest(HttpServletRequest request, HttpServletResponse response) throws IOException, - UnsupportedEncodingException { - String serviceUrl = request.getRequestURL().toString(); - String smd = JavaToSmd.interfaceToSmd20(serviceInterface, serviceUrl); - - response.setContentType("application/json;charset=utf-8"); - OutputStream out = response.getOutputStream(); - byte[] bout = smd.getBytes("UTF-8"); - out.write(bout); - out.flush(); - out.close(); - } - -} -- cgit v1.2.3