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/*
* Copyright (C) 2016 Google Inc.
*
* Licensed 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 com.google.android.mobly.snippet.rpc;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Represents a JSON RPC result.
*
* @see <a href="http://json-rpc.org/wiki/specification">http://json-rpc.org/wiki/specification</a>
*/
public class JsonRpcResult {
private JsonRpcResult() {
// Utility class.
}
public static JSONObject empty(int id) throws JSONException {
JSONObject json = new JSONObject();
json.put("id", id);
json.put("result", JSONObject.NULL);
json.put("callback", JSONObject.NULL);
json.put("error", JSONObject.NULL);
return json;
}
public static JSONObject result(int id, Object data) throws JSONException {
JSONObject json = new JSONObject();
json.put("id", id);
json.put("result", JsonBuilder.build(data));
json.put("callback", JSONObject.NULL);
json.put("error", JSONObject.NULL);
return json;
}
public static JSONObject callback(int id, Object data, String callbackId) throws JSONException {
JSONObject json = new JSONObject();
json.put("id", id);
json.put("result", JsonBuilder.build(data));
json.put("callback", callbackId);
json.put("error", JSONObject.NULL);
return json;
}
public static JSONObject error(int id, Throwable t) throws JSONException {
String stackTrace = getStackTrace(t);
JSONObject json = new JSONObject();
json.put("id", id);
json.put("result", JSONObject.NULL);
json.put("callback", JSONObject.NULL);
json.put("error", stackTrace);
return json;
}
public static String getStackTrace(Throwable throwable) {
StringWriter stackTraceWriter = new StringWriter();
stackTraceWriter.write("\n-------------- Java Stacktrace ---------------\n");
throwable.printStackTrace(new PrintWriter(stackTraceWriter));
stackTraceWriter.write("----------------------------------------------");
return stackTraceWriter.toString();
}
}
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