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/JsonRpc10Request.java | 13 + .../jsonrpc/protocol/JsonRpc10Response.java | 34 +- .../binding/jsonrpc/protocol/JsonRpc20Error.java | 28 +- .../binding/jsonrpc/protocol/JsonRpc20Request.java | 16 + .../jsonrpc/protocol/JsonRpc20Response.java | 10 +- .../binding/jsonrpc/protocol/JsonRpc20Result.java | 6 + .../binding/jsonrpc/protocol/JsonRpcServlet.java | 313 ---------------- .../jsonrpc/provider/JSONRPCBindingInvoker.java | 252 ------------- .../provider/JSONRPCReferenceBindingProvider.java | 2 +- .../provider/JSONRPCServiceBindingProvider.java | 4 +- .../jsonrpc/provider/JSONRPCServiceServlet.java | 398 --------------------- .../binding/jsonrpc/provider/JsonRpcInvoker.java | 246 +++++++++++++ .../binding/jsonrpc/provider/JsonRpcServlet.java | 365 +++++++++++++++++++ .../binding/jsonrpc/JSONRPCExceptionTestCase.java | 4 +- .../binding/jsonrpc/JSONRPCServiceTestCase.java | 2 +- 15 files changed, 719 insertions(+), 974 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 delete mode 100644 sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCBindingInvoker.java delete mode 100644 sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceServlet.java create mode 100644 sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcInvoker.java create mode 100644 sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcServlet.java (limited to 'sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src') diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Request.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Request.java index 769c59827d..e4ae943685 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Request.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Request.java @@ -19,6 +19,8 @@ package org.apache.tuscany.sca.binding.jsonrpc.protocol; +import java.util.Arrays; + import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; @@ -66,6 +68,17 @@ public class JsonRpc10Request { } + public JSONObject toJSONObject() throws JSONException { + JSONObject req = new JSONObject(); + req.put("id", id); + req.put("method", method); + if (params != null) { + JSONArray args = new JSONArray(Arrays.asList(params)); + req.put("params", args); + } + return req; + } + public boolean isNotification() { return id == null; } diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Response.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Response.java index 1a37104d6b..7facd2588a 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Response.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc10Response.java @@ -37,9 +37,17 @@ import org.json.JSONObject; * */ public class JsonRpc10Response { + public static final int REMOTE_EXCEPTION = 490; private Object id; private Object result; private Object error; + + private volatile JSONObject response; + + public JsonRpc10Response(JSONObject response) { + super(); + this.response = response; + } public JsonRpc10Response(Object id, Object result, Object error) { super(); @@ -51,8 +59,32 @@ public class JsonRpc10Response { } } + public JsonRpc10Response(Object id, Throwable t) { + super(); + this.id = id; + this.result = null; + try { + JSONObject obj = new JSONObject(); + // obj.put("msg", t.getMessage()); + obj.put("code", REMOTE_EXCEPTION); + obj.put("message", t.getMessage()); + JSONObject exception = new JSONObject(); + exception.put("class", t.getClass().getName()); + exception.put("message", t.getMessage()); + exception.put("stackTrace", JsonRpc20Error.stackTrace(t)); + obj.put("data", exception); + this.error = obj; + } catch (JSONException e) { + throw new IllegalArgumentException(e); + } + + } + public JSONObject toJSONObject() throws JSONException { - JSONObject response = new JSONObject(); + if (response != null) { + return response; + } + response = new JSONObject(); response.put("id", id); if (result != null) { response.put("result", result); diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Error.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Error.java index d248386909..0205be3d5f 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Error.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Error.java @@ -59,7 +59,7 @@ public class JsonRpc20Error extends JsonRpc20Result { super(id); this.code = INTERNAL_ERROR; this.messaege = t.getMessage(); - this.data = stackTrace(t); + this.data = t; } public static String stackTrace(Throwable t) { @@ -68,14 +68,36 @@ public class JsonRpc20Error extends JsonRpc20Result { return sw.toString(); } + public JsonRpc20Error(JSONObject response) { + super(response); + this.id = response.opt("id"); + this.code = response.optInt("code"); + this.messaege = response.optString("message"); + this.data = response.opt("data"); + } + public JSONObject toJSONObject() throws JSONException { - JSONObject response = new JSONObject(); + if (response != null) { + return response; + } + + response = new JSONObject(); response.put("jsonrpc", "2.0"); response.put("id", id); JSONObject error = new JSONObject(); error.put("code", code); error.put("message", messaege); - error.put("data", data); + + if (data instanceof Throwable) { + Throwable t = (Throwable)data; + JSONObject exception = new JSONObject(); + exception.put("class", t.getClass().getName()); + exception.put("message", t.getMessage()); + exception.put("stackTrace", JsonRpc20Error.stackTrace(t)); + response.put("data", exception); + } else { + error.put("data", data); + } response.put("error", error); return response; diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Request.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Request.java index 1af087aa25..2ee18bcf5a 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Request.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Request.java @@ -19,6 +19,7 @@ package org.apache.tuscany.sca.binding.jsonrpc.protocol; +import java.util.Arrays; import java.util.HashMap; import java.util.Iterator; import java.util.Map; @@ -49,6 +50,21 @@ public class JsonRpc20Request { this.mappedParams = mappedParams; } + public JSONObject toJSONObject() throws JSONException { + JSONObject req = new JSONObject(); + req.put("jsonrpc", "2.0"); + req.put("id", id); + req.put("method", method); + if (params != null) { + JSONArray args = new JSONArray(Arrays.asList(params)); + req.put("params", args); + } else { + JSONObject args = new JSONObject(mappedParams); + req.put("params", args); + } + return req; + } + public JsonRpc20Request(JSONObject req) throws JSONException { super(); if (req.has("jsonrpc") && "2.0".equals(req.getString("jsonrpc"))) { diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Response.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Response.java index df6f1b9f5b..e6f8282faf 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Response.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Response.java @@ -30,8 +30,16 @@ public class JsonRpc20Response extends JsonRpc20Result { this.result = result; } + public JsonRpc20Response(JSONObject response) { + super(response); + this.result = response.opt("result"); + } + public JSONObject toJSONObject() throws JSONException { - JSONObject response = new JSONObject(); + if (response != null) { + return response; + } + response = new JSONObject(); response.put("jsonrpc", "2.0"); response.put("id", id); response.put("result", result); diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Result.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Result.java index cece8029d6..14f8f444de 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Result.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpc20Result.java @@ -27,7 +27,13 @@ import org.json.JSONObject; public abstract class JsonRpc20Result { protected Object id; + protected volatile JSONObject response; + protected JsonRpc20Result(JSONObject response) { + super(); + this.response = response; + } + protected JsonRpc20Result(Object id) { super(); this.id = id; 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(); - } - -} diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCBindingInvoker.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCBindingInvoker.java deleted file mode 100644 index 51311c2da8..0000000000 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCBindingInvoker.java +++ /dev/null @@ -1,252 +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.provider; - -import java.io.IOException; -import java.io.OutputStream; -import java.lang.reflect.Type; -import java.util.Arrays; -import java.util.Collections; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -import javax.xml.bind.annotation.adapters.XmlAdapter; -import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter; -import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapters; - -import org.apache.http.HttpEntity; -import org.apache.http.HttpResponse; -import org.apache.http.HttpStatus; -import org.apache.http.client.HttpClient; -import org.apache.http.client.methods.HttpPost; -import org.apache.http.entity.ContentProducer; -import org.apache.http.entity.EntityTemplate; -import org.apache.http.entity.StringEntity; -import org.apache.http.util.EntityUtils; -import org.apache.tuscany.sca.assembly.EndpointReference; -import org.apache.tuscany.sca.databinding.json.JSONDataBinding; -import org.apache.tuscany.sca.interfacedef.DataType; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.DataExchangeSemantics; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.invocation.Message; -import org.codehaus.jackson.map.AnnotationIntrospector; -import org.codehaus.jackson.map.DeserializationConfig; -import org.codehaus.jackson.map.ObjectMapper; -import org.codehaus.jackson.map.deser.CustomDeserializerFactory; -import org.codehaus.jackson.map.deser.StdDeserializerProvider; -import org.codehaus.jackson.map.introspect.JacksonAnnotationIntrospector; -import org.codehaus.jackson.map.ser.CustomSerializerFactory; -import org.codehaus.jackson.map.type.TypeFactory; -import org.codehaus.jackson.xc.JaxbAnnotationIntrospector; -import org.codehaus.jackson.xc.XmlAdapterJsonDeserializer; -import org.codehaus.jackson.xc.XmlAdapterJsonSerializer; -import org.json.JSONException; -import org.json.JSONObject; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * Invoker for the JSONRPC Binding - * - * @version $Rev$ $Date$ - */ -public class JSONRPCBindingInvoker implements Invoker, DataExchangeSemantics { - private EndpointReference endpointReference; - private Operation operation; - private String uri; - private ObjectMapper mapper; - private HttpClient httpClient; - - public JSONRPCBindingInvoker(EndpointReference endpointReference, Operation operation, HttpClient httpClient) { - this.endpointReference = endpointReference; - this.operation = operation; - this.uri = endpointReference.getBinding().getURI(); - this.mapper = createObjectMapper(null); - this.httpClient = httpClient; - } - - public Message invoke(Message msg) { - HttpPost post = null; - HttpResponse response = null; - try { - String requestId = "1"; - post = new HttpPost(uri); - HttpEntity entity = null; - Object[] args = msg.getBody(); - final String db = msg.getOperation().getWrapper().getDataBinding(); - - if (!db.equals(JSONDataBinding.NAME)) { - - // Construct a map to hold JSON-RPC request - final Map jsonRequest = new HashMap(); - jsonRequest.put("method", "Service" + "." + msg.getOperation().getName()); - - List params = null; - // Extract the arguments - args = msg.getBody(); - - if (args != null) { - params = Arrays.asList(args); - } else { - params = Collections.emptyList(); - } - - jsonRequest.put("params", params); - jsonRequest.put("id", requestId); - - // Create content producer so that we can stream the json result out - ContentProducer cp = new ContentProducer() { - public void writeTo(OutputStream outstream) throws IOException { - mapper.writeValue(outstream, jsonRequest); - } - }; - entity = new EntityTemplate(cp); - } else { - // Single string argument - entity = new StringEntity((String)args[0], "UTF-8"); - } - - post.setEntity(entity); - - response = httpClient.execute(post); - - if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { - //success - - entity = response.getEntity(); - String entityResponse = EntityUtils.toString(entity); - entity.consumeContent(); - if (!db.equals(JSONDataBinding.NAME)) { - JSONObject jsonResponse = new JSONObject(entityResponse); - - if (!jsonResponse.has("result")) { - processException(jsonResponse); - } - DataType> outputType = operation.getOutputType(); - DataType returnType = - (outputType != null && !outputType.getLogical().isEmpty()) ? outputType.getLogical().get(0) - : null; - - if (returnType == null) { - msg.setBody(null); - return msg; - } - - //check requestId - if (!requestId.equalsIgnoreCase(jsonResponse.optString("id"))) { - throw new ServiceRuntimeException("Invalid response id:" + requestId); - } - - Object rawResult = jsonResponse.get("result"); - if (rawResult == null) { - processException(jsonResponse); - } - - Class returnClass = returnType.getPhysical(); - Type genericReturnType = returnType.getGenericType(); - - ObjectMapper mapper = createObjectMapper(returnClass); - String json = rawResult.toString(); - - // Jackson requires the quoted String so that readValue can work - if (returnClass == String.class) { - json = "\"" + json + "\""; - } - Object body = mapper.readValue(json, TypeFactory.type(genericReturnType)); - - msg.setBody(body); - } else { - msg.setBody(entityResponse); - } - - } else { - // Consume the content so the connection can be released - response.getEntity().consumeContent(); - throw new ServiceRuntimeException("Abnormal HTTP response: " + response.getStatusLine().toString()); - } - } catch (Exception e) { - // e.printStackTrace(); - msg.setFaultBody(e); - } - - return msg; - } - - public static ObjectMapper createObjectMapper(Class cls) { - ObjectMapper mapper = new ObjectMapper(); - if (cls != null) { - // Workaround for http://jira.codehaus.org/browse/JACKSON-413 - Package pkg = cls.getPackage(); - if (pkg != null) { - XmlJavaTypeAdapters adapters = pkg.getAnnotation(XmlJavaTypeAdapters.class); - if (adapters != null) { - CustomSerializerFactory serializerFactory = new CustomSerializerFactory(); - CustomDeserializerFactory deserializerFactory = new CustomDeserializerFactory(); - for (XmlJavaTypeAdapter a : adapters.value()) { - XmlAdapter xmlAdapter = null; - try { - xmlAdapter = a.value().newInstance(); - } catch (Throwable e) { - // Ignore - } - if (xmlAdapter != null) { - XmlAdapterJsonDeserializer deserializer = new XmlAdapterJsonDeserializer(xmlAdapter, null); - XmlAdapterJsonSerializer serializer = new XmlAdapterJsonSerializer(xmlAdapter, null); - deserializerFactory.addSpecificMapping(a.type(), deserializer); - serializerFactory.addGenericMapping(a.type(), serializer); - StdDeserializerProvider deserializerProvider = - new StdDeserializerProvider(deserializerFactory); - mapper.setSerializerFactory(serializerFactory); - mapper.setDeserializerProvider(deserializerProvider); - } - } - } - } - } - AnnotationIntrospector primary = new JaxbAnnotationIntrospector(); - AnnotationIntrospector secondary = new JacksonAnnotationIntrospector(); - AnnotationIntrospector pair = new AnnotationIntrospector.Pair(primary, secondary); - mapper.getDeserializationConfig().setAnnotationIntrospector(pair); - // [rfeng] To avoid complaints about javaClass - mapper.getDeserializationConfig().set(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, Boolean.FALSE); - mapper.getSerializationConfig().setAnnotationIntrospector(pair); - return mapper; - } - - /** - * Generate and throw exception based on the data in the 'responseMessage' - */ - protected void processException(JSONObject responseMessage) throws JSONException { - // FIXME: We need to find a way to build Java exceptions out of the json-rpc error - JSONObject error = (JSONObject)responseMessage.get("error"); - if (error != null) { - throw new ServiceRuntimeException(error.toString()); - } else { - throw new ServiceRuntimeException(responseMessage.toString()); - } - } - - @Override - public boolean allowsPassByReference() { - return true; - } - -} diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCReferenceBindingProvider.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCReferenceBindingProvider.java index f7fda6e83c..38688a8d34 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCReferenceBindingProvider.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCReferenceBindingProvider.java @@ -70,7 +70,7 @@ public class JSONRPCReferenceBindingProvider implements ReferenceBindingProvider public Invoker createInvoker(Operation operation) { // final Interface intf = reference.getInterfaceContract().getInterface(); - return new JSONRPCBindingInvoker(endpointReference, operation, httpClient); + return new JsonRpcInvoker(endpointReference, operation, httpClient); } public void start() { diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java index 6fc15d4ec1..82b4c351a3 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java @@ -92,8 +92,8 @@ public class JSONRPCServiceBindingProvider implements ServiceBindingProvider { Object proxy = component.getComponentContext().getServiceReference(serviceInterface, endpoint).getService(); // Create and register a Servlet for this service - JSONRPCServiceServlet serviceServlet = - new JSONRPCServiceServlet(messageFactory, endpoint, serviceInterface, proxy); + JsonRpcServlet serviceServlet = + new JsonRpcServlet(messageFactory, endpoint, serviceInterface, proxy); String mapping = registerServlet(serviceServlet); servletMappings.add(mapping); } diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceServlet.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceServlet.java deleted file mode 100644 index 47f74720a0..0000000000 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceServlet.java +++ /dev/null @@ -1,398 +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.provider; - -import java.io.BufferedReader; -import java.io.CharArrayWriter; -import java.io.IOException; -import java.io.InputStreamReader; -import java.io.OutputStream; -import java.io.UnsupportedEncodingException; -import java.net.URLDecoder; -import java.util.Date; -import java.util.List; - -import javax.servlet.ServletConfig; -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; -import javax.servlet.http.HttpSession; - -import org.apache.commons.codec.binary.Base64; -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.common.http.HTTPUtils; -import org.apache.tuscany.sca.databinding.json.JSONDataBinding; -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.jabsorb.JSONRPCBridge; -import org.jabsorb.JSONRPCResult; -import org.jabsorb.JSONRPCServlet; -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * Servlet that handles JSON-RPC requests invoking SCA services. - * - * There is an instance of this Servlet for each - * - * @version $Rev$ $Date$ - */ -public class JSONRPCServiceServlet extends JSONRPCServlet { - 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 JSONRPCServiceServlet(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 to do nothing as the JSONRPCServlet is setup by the - * service method in this class. - */ - @Override - public void init(ServletConfig config) { - } - - @Override - public void service(HttpServletRequest request, HttpServletResponse response) throws IOException { - if ("smd".equals(request.getQueryString())) { - handleSMDRequest(request, response); - } else { - try { - handleServiceRequest(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 { - re.printStackTrace(); - } - } finally { - HttpSession session = request.getSession(false); - if (session != null) { - session.removeAttribute("JSONRPCBridge"); - } - } - } - } - - private void handleServiceRequest(HttpServletRequest request, HttpServletResponse response) throws IOException { - // 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"; - } - - CharArrayWriter data = new CharArrayWriter(); - if (request.getMethod().equals("GET")) { - // if using GET Support (see http://groups.google.com/group/json-rpc/web/json-rpc-over-http) - - //parse the GET QueryString - try { - String params = new String(Base64.decodeBase64(URLDecoder.decode(request.getParameter("params"),charset).getBytes())); - StringBuffer sb = new StringBuffer(); - sb.append("{"); - sb.append("\"method\": \"" + request.getParameter("method") + "\","); - sb.append("\"params\": " + params + ","); - sb.append("\"id\":" + request.getParameter("id")); - sb.append("}"); - - data.write(sb.toString().toCharArray(), 0, sb.length()); - } catch (Exception e) { - //FIXME Exceptions are not handled correctly here - // They should be reported to the client JavaScript as proper - // JavaScript exceptions. - throw new RuntimeException("Unable to parse request", e); - } - - } else { - // default POST style - BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset)); - - // 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); - } - } - - JSONObject jsonReq = null; - String method = null; - //parse the JSON payload - try { - jsonReq = new JSONObject(data.toString()); - method = jsonReq.getString("method"); - } catch (Exception e) { - //FIXME Exceptions are not handled correctly here - // They should be reported to the client JavaScript as proper - // JavaScript exceptions. - throw new RuntimeException("Unable to parse request", e); - } - - // check if it's a system request - // or a method invocation - byte[] bout; - try { - if (method.startsWith("system.")) { - bout = handleJSONRPCSystemInvocation(request, response, data.toString()); - } else { - bout = handleJSONRPCMethodInvocation(request, response, jsonReq); - } - } catch (JSONException e) { - throw new RuntimeException(e); - } - - // Send response to client - // Encode using UTF-8, although We are actually ASCII clean as - // all unicode data is JSON escaped using backslash u. This is - // less data efficient for foreign character sets but it is - // needed to support naughty browsers such as Konqueror and Safari - // which do not honour the charset set in the response - response.setContentType("text/plain;charset=utf-8"); - - //set Cache-Control to no-cache to avoid intermediary - //proxy/reverse-proxy caches and always hit the server - //that would identify if the value was current or not - response.setHeader("Cache-Control", "no-cache"); - response.setHeader("Expires", new Date(0).toGMTString()); - - //handle etag if using GET - if( request.getMethod().equals("GET")) { - String eTag = HTTPUtils.calculateHashETag(bout); - - // Test request for predicates. - String predicate = request.getHeader( "If-Match" ); - if (( predicate != null ) && ( !predicate.equals(eTag) )) { - // No match, should short circuit - response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); - return; - } - predicate = request.getHeader( "If-None-Match" ); - if (( predicate != null ) && ( predicate.equals(eTag) )) { - // Match, should short circuit - response.sendError(HttpServletResponse.SC_NOT_MODIFIED); - return; - } - - response.addHeader("ETag", eTag); - } - - OutputStream out = response.getOutputStream(); - out.write(bout); - out.flush(); - out.close(); - } - - /** - * 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.interfaceToSmd(serviceInterface, serviceUrl); - - response.setContentType("text/plain;charset=utf-8"); - OutputStream out = response.getOutputStream(); - byte[] bout = smd.getBytes("UTF-8"); - out.write(bout); - out.flush(); - out.close(); - } - - protected byte[] handleJSONRPCSystemInvocation(HttpServletRequest request, HttpServletResponse response, String requestData) throws IOException, - UnsupportedEncodingException, JSONException { - /* - * Create a new bridge for every request to avoid all the problems with - * JSON-RPC-Java storing the bridge in the session - */ - HttpSession session = request.getSession(); - - JSONRPCBridge jsonrpcBridge = new JSONRPCBridge(); - jsonrpcBridge.registerObject("Service", serviceInstance, serviceInterface); - session.setAttribute("JSONRPCBridge", jsonrpcBridge); - - org.json.JSONObject jsonReq = null; - JSONRPCResult jsonResp = null; - jsonReq = new org.json.JSONObject(requestData); - - String method = jsonReq.getString("method"); - if ((method != null) && (method.indexOf('.') < 0)) { - jsonReq.putOpt("method", "Service" + "." + method); - } - - // invoke the request - jsonResp = jsonrpcBridge.call(new Object[] {request}, jsonReq); - - return jsonResp.toString().getBytes("UTF-8"); - } - - protected byte[] handleJSONRPCMethodInvocation(HttpServletRequest request, HttpServletResponse response, JSONObject jsonReq) throws IOException, - UnsupportedEncodingException { - - String method = null; - Object[] args = null; - Object id = null; - try { - // Extract the method - method = jsonReq.getString("method"); - if ((method != null) && (method.indexOf('.') < 0)) { - jsonReq.putOpt("method", "Service" + "." + method); - } - - // Extract the arguments - JSONArray array = jsonReq.getJSONArray("params"); - args = new Object[array.length()]; - for (int i = 0; i < args.length; i++) { - args[i] = array.get(i); - } - id = jsonReq.get("id"); - - } catch (Exception e) { - throw new RuntimeException("Unable to find json method name", e); - } - - // invoke the request - Operation jsonOperation = findOperation(method); - Object result = null; - - - // Invoke the get operation on the service implementation - Message requestMessage = messageFactory.createMessage(); - requestMessage.setOperation(jsonOperation); - - requestMessage.getHeaders().put("RequestMessage", request); - - if (jsonOperation.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { - requestMessage.setBody(new Object[]{jsonReq.toString()}); - } else { - requestMessage.setBody(args); - } - - //result = wire.invoke(jsonOperation, args); - Message responseMessage = null; - try { - responseMessage = endpoint.getInvocationChain(jsonOperation).getHeadInvoker().invoke(requestMessage); - } catch (RuntimeException re) { - if (re.getCause() instanceof javax.security.auth.login.LoginException) { - throw re; - } else { - //some other exception - JSONRPCResult errorResult = new JSONRPCResult(JSONRPCResult.CODE_REMOTE_EXCEPTION, id, re); - return errorResult.toString().getBytes("UTF-8"); - } - } - - if (!responseMessage.isFault()) { - //successful execution of the invocation - if (jsonOperation.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { - result = responseMessage.getBody(); - return result.toString().getBytes("UTF-8"); - } else { - if (jsonOperation.getOutputType().getLogical().size() == 0) { - // void operation (json-rpc notification) - try { - JSONObject jsonResponse = new JSONObject(); - jsonResponse.put("result", ""); - //get response to send to client - return jsonResponse.toString().getBytes("UTF-8"); - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - - } else { - // regular operation returning some value - try { - result = responseMessage.getBody(); - JSONObject jsonResponse = new JSONObject(); - //JSONObject put will remove the entry if it's value is null - //and per javadoc, we should pass JSONObject.NULL - if(result == null) { - jsonResponse.put("result", JSONObject.NULL); - } else { - jsonResponse.put("result", result); - } - jsonResponse.putOpt("id", id); - //get response to send to client - return jsonResponse.toString().getBytes("UTF-8"); - } catch (Exception e) { - throw new ServiceRuntimeException("Unable to create JSON response", e); - } - } - } - } else { - //exception thrown while executing the invocation - Throwable exception = (Throwable)responseMessage.getBody(); - JSONRPCResult errorResult = new JSONRPCResult(JSONRPCResult.CODE_REMOTE_EXCEPTION, id, exception ); - return errorResult.toString().getBytes("UTF-8"); - } - - } - - /** - * 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; - } -} diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcInvoker.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcInvoker.java new file mode 100644 index 0000000000..b3781d88de --- /dev/null +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcInvoker.java @@ -0,0 +1,246 @@ +/* + * 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.provider; + +import java.io.IOException; +import java.io.OutputStream; +import java.lang.reflect.Constructor; +import java.lang.reflect.Method; +import java.lang.reflect.Type; +import java.util.List; +import java.util.UUID; + +import org.apache.http.HttpEntity; +import org.apache.http.HttpResponse; +import org.apache.http.HttpStatus; +import org.apache.http.client.HttpClient; +import org.apache.http.client.methods.HttpPost; +import org.apache.http.entity.ContentProducer; +import org.apache.http.entity.EntityTemplate; +import org.apache.http.entity.StringEntity; +import org.apache.http.util.EntityUtils; +import org.apache.tuscany.sca.assembly.EndpointReference; +import org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc10Request; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20Request; +import org.apache.tuscany.sca.databinding.json.JSONDataBinding; +import org.apache.tuscany.sca.databinding.json.jackson.JacksonHelper; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaOperation; +import org.apache.tuscany.sca.invocation.DataExchangeSemantics; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.codehaus.jackson.map.ObjectMapper; +import org.codehaus.jackson.map.type.TypeFactory; +import org.json.JSONObject; +import org.oasisopen.sca.ServiceRuntimeException; + +/** + * Invoker for the JSONRPC Binding + * + * @version $Rev$ $Date$ + */ +public class JsonRpcInvoker implements Invoker, DataExchangeSemantics { + private EndpointReference endpointReference; + private Operation operation; + private String uri; + private ObjectMapper mapper; + private HttpClient httpClient; + + public JsonRpcInvoker(EndpointReference endpointReference, Operation operation, HttpClient httpClient) { + this.endpointReference = endpointReference; + this.operation = operation; + this.uri = endpointReference.getBinding().getURI(); + this.mapper = createObjectMapper(null); + this.httpClient = httpClient; + } + + public Message invoke(Message msg) { + HttpPost post = null; + HttpResponse response = null; + try { + String requestId = UUID.randomUUID().toString(); + post = new HttpPost(uri); + HttpEntity entity = null; + Object[] args = msg.getBody(); + final String db = msg.getOperation().getWrapper().getDataBinding(); + + if (!db.equals(JSONDataBinding.NAME)) { + Object[] params = new Object[0]; + // Extract the arguments + args = msg.getBody(); + + if (args instanceof Object[]) { + params = (Object[])args; + } + + JSONObject jsonReq = null; + if (JSONRPCBinding.VERSION_20.equals(((JSONRPCBinding)endpointReference.getBinding()).getVersion())) { + JsonRpc20Request req = new JsonRpc20Request(requestId, msg.getOperation().getName(), params); + jsonReq = req.toJSONObject(); + } else { + JsonRpc10Request req = new JsonRpc10Request(requestId, msg.getOperation().getName(), params); + jsonReq = req.toJSONObject(); + } + final String json = jsonReq.toString(4); + + // Create content producer so that we can stream the json result out + ContentProducer cp = new ContentProducer() { + public void writeTo(OutputStream outstream) throws IOException { + // mapper.writeValue(outstream, req.toJSONObject().toString()); + outstream.write(json.getBytes("UTF-8")); + } + }; + entity = new EntityTemplate(cp); + } else { + // Single string argument + entity = new StringEntity((String)args[0], "UTF-8"); + } + + post.setEntity(entity); + + response = httpClient.execute(post); + + if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { + //success + + entity = response.getEntity(); + String entityResponse = EntityUtils.toString(entity); + entity.consumeContent(); + if (!db.equals(JSONDataBinding.NAME)) { + JSONObject jsonResponse = new JSONObject(entityResponse); + + if (!jsonResponse.isNull("error")) { + processException(jsonResponse); + } + DataType> outputType = operation.getOutputType(); + DataType returnType = + (outputType != null && !outputType.getLogical().isEmpty()) ? outputType.getLogical().get(0) + : null; + + if (returnType == null) { + msg.setBody(null); + return msg; + } + + //check requestId + if (!requestId.equalsIgnoreCase(jsonResponse.optString("id"))) { + throw new ServiceRuntimeException("Invalid response id:" + requestId); + } + + Object rawResult = jsonResponse.get("result"); + + Class returnClass = returnType.getPhysical(); + Type genericReturnType = returnType.getGenericType(); + + ObjectMapper mapper = createObjectMapper(returnClass); + String json = rawResult.toString(); + + // Jackson requires the quoted String so that readValue can work + if (returnClass == String.class) { + json = "\"" + json + "\""; + } + Object body = mapper.readValue(json, TypeFactory.type(genericReturnType)); + + msg.setBody(body); + } else { + msg.setBody(entityResponse); + } + + } else { + // Consume the content so the connection can be released + response.getEntity().consumeContent(); + throw new ServiceRuntimeException("Abnormal HTTP response: " + response.getStatusLine().toString()); + } + } catch (RuntimeException e) { + throw e; + } catch (Error e) { + throw e; + } catch (Exception e) { + // e.printStackTrace(); + msg.setFaultBody(e); + } catch (Throwable e) { + throw new ServiceRuntimeException(e); + } + + return msg; + } + + public static ObjectMapper createObjectMapper(Class cls) { + return JacksonHelper.createObjectMapper(cls); + } + + /** + * Generate and throw exception based on the data in the 'responseMessage' + */ + protected void processException(JSONObject responseMessage) throws Throwable { + // FIXME: We need to find a way to build Java exceptions out of the json-rpc error + JSONObject error = (JSONObject)responseMessage.opt("error"); + if (error != null) { + Object data = error.opt("data"); + if (data instanceof JSONObject) { + JSONObject fault = (JSONObject)data; + String javaClass = fault.optString("class"); + String message = fault.optString("message"); + String stackTrace = fault.optString("stackTrace"); + if (javaClass != null) { + if (stackTrace != null) { + message = message + "\n" + stackTrace; + } + ClassLoader classLoader = Thread.currentThread().getContextClassLoader(); + if (operation instanceof JavaOperation) { + Method method = ((JavaOperation)operation).getJavaMethod(); + classLoader = method.getDeclaringClass().getClassLoader(); + } + Class exceptionClass = + (Class)Class.forName(javaClass, false, classLoader); + Constructor ctor = null; + Throwable ex = null; + try { + ctor = exceptionClass.getConstructor(String.class, Throwable.class); + ex = ctor.newInstance(message, null); + } catch (NoSuchMethodException e1) { + try { + ctor = exceptionClass.getConstructor(String.class); + ex = ctor.newInstance(message); + } catch (NoSuchMethodException e2) { + try { + ctor = exceptionClass.getConstructor(Throwable.class); + ex = ctor.newInstance(null); + } catch (NoSuchMethodException e3) { + ctor = exceptionClass.getConstructor(); + ex = ctor.newInstance(); + } + } + } + throw ex; + } + } + throw new ServiceRuntimeException(error.toString()); + } + } + + @Override + public boolean allowsPassByReference() { + return true; + } + +} diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcServlet.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcServlet.java new file mode 100644 index 0000000000..9e4ef8168b --- /dev/null +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JsonRpcServlet.java @@ -0,0 +1,365 @@ +/* + * 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.provider; + +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.net.URLDecoder; +import java.util.List; + +import javax.security.auth.login.LoginException; +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.apache.commons.codec.binary.Base64; +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc10Request; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc10Response; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20BatchRequest; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20Error; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20Request; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20Response; +import org.apache.tuscany.sca.binding.jsonrpc.protocol.JsonRpc20Result; +import org.apache.tuscany.sca.databinding.json.JSONDataBinding; +import org.apache.tuscany.sca.databinding.json.jackson.JacksonHelper; +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 { + StringWriter data = new StringWriter(); + // 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"; + } + + if (request.getMethod().equals("GET")) { + // if using GET Support (see http://groups.google.com/group/json-rpc/web/json-rpc-over-http) + + //parse the GET QueryString + try { + String params = + new String(Base64.decodeBase64(URLDecoder.decode(request.getParameter("params"), charset) + .getBytes())); + StringBuilder sb = new StringBuilder(); + sb.append("{"); + sb.append("\"method\": \"" + request.getParameter("method") + "\","); + sb.append("\"params\": " + params + ","); + sb.append("\"id\":" + request.getParameter("id")); + sb.append("}"); + + data.write(sb.toString()); + } catch (Throwable e) { + JsonRpc10Response error = new JsonRpc10Response(request.getParameter("id"), e); + error.write(response.getWriter()); + return; + } + } else { + + // default POST style + BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset)); + // 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 = JacksonHelper.read(json); + 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) throws Exception { + + // 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); + + if (jsonOperation.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { + requestMessage.setBody(new Object[] {JacksonHelper.write(request.toJSONObject())}); + } else { + requestMessage.setBody(params); + } + 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.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { + result = responseMessage.getBody(); + return new JsonRpc20Response(JacksonHelper.read(result.toString())); + } else { + 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) throws Exception { + + // 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); + if (jsonOperation.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { + requestMessage.setBody(new Object[] {JacksonHelper.write(request.toJSONObject())}); + } else { + requestMessage.setBody(params); + } + + Message responseMessage = null; + try { + + //result = wire.invoke(jsonOperation, args); + responseMessage = endpoint.getInvocationChain(jsonOperation).getHeadInvoker().invoke(requestMessage); + } catch (RuntimeException e) { + if (e.getCause() instanceof LoginException) { + throw e; + } else { + JsonRpc10Response error = new JsonRpc10Response(request.getId(), e); + return error; + } + } + + if (!responseMessage.isFault()) { + if (jsonOperation.getWrapper().getDataBinding().equals(JSONDataBinding.NAME)) { + result = responseMessage.getBody(); + return new JsonRpc10Response(JacksonHelper.read(result.toString())); + } else { + if (jsonOperation.getOutputType().getLogical().size() == 0) { + // void operation (json-rpc notification) + JsonRpc10Response response = new JsonRpc10Response(request.getId(), JSONObject.NULL, null); + return response; + + } else { + // regular operation returning some value + result = responseMessage.getBody(); + JsonRpc10Response response = new JsonRpc10Response(request.getId(), result, null); + //get response to send to client + return response; + } + } + + } else { + //exception thrown while executing the invocation + Throwable exception = (Throwable)responseMessage.getBody(); + + JsonRpc10Response error = new JsonRpc10Response(request.getId(), 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 = null; + if (JSONRPCBinding.VERSION_20.equals(((JSONRPCBinding)binding).getVersion())) { + smd = JavaToSmd.interfaceToSmd20(serviceInterface, serviceUrl); + } else { + smd = JavaToSmd.interfaceToSmd(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(); + } + +} diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCExceptionTestCase.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCExceptionTestCase.java index 56080058c8..037c6f3ad0 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCExceptionTestCase.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCExceptionTestCase.java @@ -75,7 +75,7 @@ public class JSONRPCExceptionTestCase{ JSONObject jsonErr = new JSONObject(response.getText()).getJSONObject("error"); - Assert.assertEquals("Runtime Exception", jsonErr.getString("msg")); + Assert.assertEquals("Runtime Exception", jsonErr.getString("message")); } @Test @@ -90,6 +90,6 @@ public class JSONRPCExceptionTestCase{ JSONObject jsonErr = new JSONObject(response.getText()).getJSONObject("error"); - Assert.assertEquals("Business Exception", jsonErr.getString("msg")); + Assert.assertEquals("Business Exception", jsonErr.getString("message")); } } \ No newline at end of file diff --git a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCServiceTestCase.java b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCServiceTestCase.java index 8b8d689b0e..a0e7af8172 100644 --- a/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCServiceTestCase.java +++ b/sca-java-2.x/trunk/modules/binding-jsonrpc-runtime/src/test/java/org/apache/tuscany/sca/binding/jsonrpc/JSONRPCServiceTestCase.java @@ -106,6 +106,6 @@ public class JSONRPCServiceTestCase { Assert.assertEquals(200, response.getResponseCode()); JSONObject jsonResp = new JSONObject(response.getText()); - Assert.assertEquals(0, jsonResp.getString("result").length()); + Assert.assertTrue(jsonResp.isNull("result")); } } \ No newline at end of file -- cgit v1.2.3