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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-RC1/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcResponse.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-RC1/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcResponse.java b/sca-java-2.x/tags/2.0-RC1/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcResponse.java new file mode 100644 index 0000000000..8186d89030 --- /dev/null +++ b/sca-java-2.x/tags/2.0-RC1/modules/binding-jsonrpc-runtime/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/protocol/JsonRpcResponse.java @@ -0,0 +1,98 @@ +/* + * 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.IOException; +import java.io.PrintWriter; +import java.io.StringWriter; +import java.io.Writer; + +import org.apache.tuscany.sca.databinding.json.jackson.JacksonHelper; +import org.codehaus.jackson.JsonNode; +import org.codehaus.jackson.node.JsonNodeFactory; +import org.codehaus.jackson.node.ObjectNode; + +/** + * When the method invocation completes, the service must reply with a response. The response is a single object serialized using JSON. + * <br> + * It has three properties: + * + * <ul> + * <li>result - The Object that was returned by the invoked method. This must be null in case there was an error invoking the method. + * <li>error - An Error object if there was an error invoking the method. It must be null if there was no error. + * <li>id - This must be the same id as the request it is responding to. + * </ul> + */ +public abstract class JsonRpcResponse { + public static final int REMOTE_EXCEPTION = 490; + + protected ObjectNode jsonNode; + + public JsonRpcResponse(ObjectNode response) { + super(); + this.jsonNode = response; + } + + public JsonRpcResponse(JsonNode id, Throwable t) { + super(); + ObjectNode response = JsonNodeFactory.instance.objectNode(); + response.put("id", id); + // response.put("result", JsonNodeFactory.instance.nullNode()); + response.put("error", mapError(t)); + this.jsonNode = response; + } + + public JsonRpcResponse(JsonNode id, JsonNode result) { + super(); + ObjectNode response = JsonNodeFactory.instance.objectNode(); + response.put("id", id); + response.put("result", result); + // response.put("error", JsonNodeFactory.instance.nullNode()); + this.jsonNode = response; + } + + private ObjectNode mapError(Throwable t) { + ObjectNode obj = JsonNodeFactory.instance.objectNode(); + // obj.put("msg", t.getMessage()); + obj.put("code", REMOTE_EXCEPTION); + obj.put("message", t.getMessage()); + ObjectNode exception = JsonNodeFactory.instance.objectNode(); + exception.put("class", t.getClass().getName()); + exception.put("message", t.getMessage()); + exception.put("stackTrace", JsonRpc20Error.stackTrace(t)); + obj.put("data", exception); + return obj; + } + + public void write(Writer writer) throws IOException { + JacksonHelper.MAPPER.writeValue(writer, jsonNode); + } + + public static String stackTrace(Throwable t) { + StringWriter sw = new StringWriter(); + t.printStackTrace(new PrintWriter(sw)); + return sw.toString(); + } + + public ObjectNode getJsonNode() { + return jsonNode; + } + +} |