/**
* Copyright (C) 2011 - 101loops.com <dev@101loops.com>
*
* 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.crashnote.logger.helper;
import com.crashnote.core.Lifecycle;
import com.crashnote.core.model.excp.CrashnoteException;
import com.crashnote.jul.impl.JulConnector;
import com.crashnote.log4j.impl.Log4jConnector;
import com.crashnote.logback.impl.LogbackConnector;
import com.crashnote.logger.config.LoggerConfig;
import com.crashnote.logger.report.LoggerReporter;
import java.util.*;
/**
* Utility class to connect/attach log appenders to an according logging framework(s).
*/
public class AutoLogConnector
implements Lifecycle {
private boolean started;
private final List<LogConnector> connectors;
// SETUP ======================================================================================
public AutoLogConnector(final LoggerConfig config, final LoggerReporter reporter) {
connectors = new ArrayList<LogConnector>(3);
final Class<LogConnector>[] connectorsSrc = getConnectorSources();
for (final Class<LogConnector> cls : connectorsSrc) {
connect(cls, config, reporter);
}
}
// LIFECYCLE ==================================================================================
public boolean start() {
if (!started) {
started = true;
// make sure there is at least one connector
if (connectors.isEmpty())
throw new CrashnoteException("unable to start: no log connector could be initialized");
}
return started;
}
public boolean stop() {
if (started) {
started = false;
// stop each connector one by one
for (final LogConnector c : connectors) c.stop();
}
return started;
}
// SHARED =====================================================================================
protected Class<LogConnector>[] getConnectorSources() {
return new Class[]{LogbackConnector.class, Log4jConnector.class, JulConnector.class};
}
// INTERNAL ===================================================================================
private void connect(final Class<LogConnector> cls,
final LoggerConfig config, final LoggerReporter reporter) {
try {
// instantiate
final LogConnector c = cls.newInstance();
try {
// start-up
c.start(config, reporter);
connectors.add(c);
} catch (Throwable e) {
c.err("unable to connect to logger", e);
}
} catch (Throwable e) {
// ignore
}
}
// GET ========================================================================================
public List<LogConnector> getConnectors() {
return connectors;
}
}