/**
* 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.logback;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.AppenderBase;
import ch.qos.logback.core.filter.Filter;
import ch.qos.logback.core.spi.FilterReply;
import com.crashnote.ICrashAppender;
import com.crashnote.core.model.types.LogLevel;
import com.crashnote.logback.impl.LogbackEvt;
import com.crashnote.logger.config.LoggerConfig;
import com.crashnote.logger.config.LoggerConfigFactory;
import com.crashnote.logger.report.LoggerReporter;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
/**
* Appender that writes logs from 'Logback' to the cloud
*/
public class CrashAppender
extends AppenderBase<ILoggingEvent> implements ICrashAppender {
// VARS =======================================================================================
private Level threshold;
private LoggerReporter<LoggerConfig> reporter;
// config
private LoggerConfig config;
private final LoggerConfigFactory configFactory;
// SETUP ======================================================================================
public CrashAppender() {
this(new LoggerConfigFactory());
}
public CrashAppender(final LoggerConfigFactory configFactory) {
this.configFactory = configFactory;
addFilter(new Filter<ILoggingEvent>() {
@Override
public FilterReply decide(final ILoggingEvent event) {
final boolean res =
event.getLevel().isGreaterOrEqual(threshold) &&
getReporter().doAcceptLog(event.getLoggerName());
return res ? FilterReply.ACCEPT : FilterReply.DENY;
}
});
}
public CrashAppender(final LoggerConfig config, final LoggerReporter reporter) {
this();
this.config = config;
this.reporter = reporter;
}
// INTERFACE ==================================================================================
@Override
public void start() {
if (!started) {
setLogLevel(getConfig().getLogLevel());
getReporter().start();
super.start();
}
}
@Override
public void stop() {
if (started) {
getReporter().stop();
super.stop();
}
}
@Override
public void setLogLevel(final LogLevel lvl) {
if (lvl == LogLevel.DEBUG)
threshold = Level.DEBUG;
else if (lvl == LogLevel.INFO)
threshold = Level.INFO;
else if (lvl == LogLevel.WARN)
threshold = Level.WARN;
else
threshold = Level.ERROR;
}
public static Logger getTargetLogger(final Class clazz) {
return (Logger) LoggerFactory.getLogger(clazz);
}
// SHARED =====================================================================================
@Override
protected void append(final ILoggingEvent event) {
if (started)
getReporter().reportLog(new LogbackEvt(event, MDC.getCopyOfContextMap()));
}
// INTERNALS ==================================================================================
private LoggerConfig getConfig() {
if (config == null)
config = (LoggerConfig) configFactory.get();
return config;
}
private LoggerReporter<LoggerConfig> getReporter() {
if (reporter == null) reporter = getConfig().getReporter();
return reporter;
}
}