com.google.gwt.logging.client.JsonLogRecordClientUtil Maven / Gradle / Ivy
/*
* Copyright 2010 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.gwt.logging.client;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONString;
import java.util.logging.LogRecord;
/**
* A set of functions to convert SerializableLogRecords into JSON strings.
* The corresponding functions to convert them back are in
* JsonLogRecordServerUtil.java. This class should only be used in client
* side code since it imports com.google.gwt.json.client classes.
* TODO(unnurg) once there is a unified JSON GWT library, combine this with
* JsonLogRecordServerUtil.
*/
public class JsonLogRecordClientUtil {
public static String logRecordAsJson(LogRecord lr) {
return logRecordAsJsonObject(lr).toString();
}
private static JSONString getJsonString(String s) {
if (s == null) {
return new JSONString("");
}
return new JSONString(s);
}
private static JSONObject logRecordAsJsonObject(LogRecord lr) {
JSONObject obj = new JSONObject();
obj.put("level", getJsonString(lr.getLevel().toString()));
obj.put("loggerName", getJsonString(lr.getLoggerName()));
obj.put("msg", getJsonString(lr.getMessage()));
obj.put("timestamp", new JSONString("" + lr.getMillis()));
obj.put("thrown", throwableAsJsonObject(lr.getThrown()));
return obj;
}
private static JSONObject stackTraceElementAsJsonObject(
StackTraceElement e) {
JSONObject obj = new JSONObject();
if (e != null) {
obj.put("className", getJsonString(e.getClassName()));
obj.put("fileName", getJsonString(e.getFileName()));
obj.put("methodName", getJsonString(e.getMethodName()));
obj.put("lineNumber", getJsonString("" + e.getLineNumber()));
}
return obj;
}
private static JSONObject throwableAsJsonObject(Throwable t) {
JSONObject obj = new JSONObject();
if (t != null) {
obj.put("type", getJsonString(t.getClass().getName()));
obj.put("message", getJsonString(t.getMessage()));
obj.put("cause", throwableAsJsonObject(t.getCause()));
StackTraceElement[] stackTrace = t.getStackTrace();
if (stackTrace != null && stackTrace.length > 0) {
JSONArray arr = new JSONArray();
for (int i = 0; i < stackTrace.length; i++) {
arr.set(i, stackTraceElementAsJsonObject(stackTrace[i]));
}
obj.put("stackTrace", arr);
}
}
return obj;
}
}