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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.googlecode.android_scripting.jsonrpc;
     18 
     19 import org.json.JSONException;
     20 import org.json.JSONObject;
     21 
     22 /**
     23  * Represents a JSON RPC result.
     24  *
     25  * @see http://json-rpc.org/wiki/specification
     26  *
     27  */
     28 public class JsonRpcResult {
     29 
     30   private JsonRpcResult() {
     31     // Utility class.
     32   }
     33 
     34   public static JSONObject empty(int id) throws JSONException {
     35     JSONObject json = new JSONObject();
     36     json.put("id", id);
     37     json.put("result", JSONObject.NULL);
     38     json.put("error", JSONObject.NULL);
     39     return json;
     40   }
     41 
     42   public static JSONObject result(int id, Object data) throws JSONException {
     43     JSONObject json = new JSONObject();
     44     json.put("id", id);
     45     json.put("result", JsonBuilder.build(data));
     46     json.put("error", JSONObject.NULL);
     47     return json;
     48   }
     49 
     50   public static JSONObject error(int id, Throwable t) throws JSONException {
     51     JSONObject json = new JSONObject();
     52     json.put("id", id);
     53     json.put("result", JSONObject.NULL);
     54     json.put("error", t.toString());
     55     return json;
     56   }
     57 }
     58