com.google.gwt.logging.server.RemoteLoggingServiceUtil Maven / Gradle / Ivy
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/*
* 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.server;
import com.google.gwt.core.server.StackTraceDeobfuscator;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
/**
* Utilities for classes that accept Remote Logging requests.
*/
public class RemoteLoggingServiceUtil {
/**
* Exceptions that may occur during remote logging.
*/
public static class RemoteLoggingException extends Exception {
public RemoteLoggingException(String message) {
super(message);
}
public RemoteLoggingException(String message, Throwable t) {
super(message, t);
}
}
/**
* Logs a message on the server.
*
* @param lr LogRecord to be logged
* @param strongName Permutation name (used for deobfuscation and may be null,
* which will only cause deobfuscation to fail)
* @param deobfuscator used for deobfuscation. May be null, which will only
* cause deobfuscation to fail.
* @param loggerNameOverride logger name for messages logged on server. May be
* null, in which case, messages will be logged to a logger
* corresponding to the client-side logger which triggered them.
*/
public static void logOnServer(LogRecord lr, String strongName,
StackTraceDeobfuscator deobfuscator, String loggerNameOverride) throws
RemoteLoggingException {
if (deobfuscator != null) {
lr = deobfuscateLogRecord(deobfuscator, lr, strongName);
}
String loggerName = loggerNameOverride == null ? lr.getLoggerName() :
loggerNameOverride;
Logger logger = Logger.getLogger(loggerName);
logger.log(lr);
}
public static LogRecord deobfuscateLogRecord(
StackTraceDeobfuscator deobfuscator, LogRecord lr, String strongName) {
if (lr.getThrown() != null && strongName != null) {
deobfuscator.deobfuscateStackTrace(lr.getThrown(), strongName);
}
return lr;
}
public static void logOnServer(String serializedLogRecordJson,
String strongName, StackTraceDeobfuscator deobfuscator,
String loggerNameOverride) throws RemoteLoggingException {
try {
LogRecord lr = JsonLogRecordServerUtil.logRecordFromJson(serializedLogRecordJson);
logOnServer(lr, strongName, deobfuscator, loggerNameOverride);
} catch (Exception e) {
// Do not leak any exception other than RemoteLoggingException.
throw new RemoteLoggingException("Failed to deserialize JSON", e);
}
}
}