/*
* Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
* Copyright [2016-2017] EMBL-European Bioinformatics Institute
*
* 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 org.ensembl.healthcheck.util;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import org.ensembl.healthcheck.CallbackTarget;
/**
* Logging handler that takes makes a callback to a particular method when a
* log record is created.
*/
public class CallbackHandler extends Handler {
private CallbackTarget callbackTarget;
// ------------------------------------------------------------------------
/**
* Creates a new instance of CallbackHandler
*
* @param ct
* The object on which to call the callback method.
* @param formatter
* The formatter object to use.
*/
public CallbackHandler(CallbackTarget ct, Formatter formatter) {
callbackTarget = ct;
setFormatter(formatter);
}
// -------------------------------------------------------------------------
/**
* Close the Handler. Currently a no-op.
*/
public void close() {
}
// -------------------------------------------------------------------------
/**
* Flush. Currently a no-op.
*/
public void flush() {
}
// -------------------------------------------------------------------------
/**
* Implementation of the Handler interface publish() method. Called each
* time a log record is produced. In this Handler, the <code>callback</code>
* method of the CallbackTarget it called with the log message.
*
* @param logRecord
* The logRecord to deal with.
*/
public void publish(LogRecord logRecord) {
try {
callbackTarget.callback(logRecord);
} catch (Exception e) {
e.printStackTrace();
}
} // publish
// -------------------------------------------------------------------------
} // CallbackHandler