/*

  * This software is licensed under the Apache License, Version 2.0

  * (the "License") agreement; 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 net.admin4j.exception;

 import java.util.logging.Handler;

 import java.util.logging.LogRecord;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 /**

  * Will track exceptions recorded via native Jdk logging

  * @author D. Ashmore

  * @since 1.0

  */

 public class JdkLoggingExceptionHandler extends Handler {

     private static Logger logger = LoggerFactory.getLogger(ExceptionTracker.class);

     @Override

     public void close() throws SecurityException {

         // NoOp

     }

     @Override

     public void flush() {

         // NoOp

     }

     @Override

     public void publish(LogRecord record) {

         /*

          * It's important that this logger not even throw a RuntimeException.

          * Throwing any exception will mask the underlying error and do users a great

          * disservice by masking the root issue.  D. Ashmore -- Aug, 2010.

          */

         try {

             if (record != null && record.getThrown() != null) {

                 ExceptionTracker.track(record.getThrown());

             }

         }

         catch (Throwable t) {

             processError(t);

         }

     }

     protected void processError(Throwable t) {

         if (logger != null) {

             logger.error("Error tracking logged exception", t);

         }

         else t.printStackTrace();

     }

 }