/**
* Copyright 2010 JBoss 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 org.drools.guvnor.server.util;
import java.util.Date;
import org.drools.guvnor.client.rpc.LogEntry;
import org.slf4j.LoggerFactory;
/**
* Collects messages for displaying in the GUI as well as providing a logger.
* @author Michael Neale.
*
*/
public class LoggingHelper {
private final org.slf4j.Logger log;
static final MessageList messages = new MessageList();
public static LogEntry[] getMessages() {
return messages.getMessages();
}
public static void cleanLog() {
messages.cleanEntry();
}
public static LoggingHelper getLogger(Class< ? > cls) {
return new LoggingHelper( cls );
}
private LoggingHelper(Class< ? > cls) {
log = LoggerFactory.getLogger( cls );
}
public void info(String message) {
log.info( message );
messages.add( message, 1 );
}
public void info(String message, Throwable error) {
log.info( message, error );
messages.add( message + " " + error.getMessage(), 1 );
}
public void debug(String message) {
log.debug( message );
}
public void error(String message) {
log.error( message );
messages.add( message, 0 );
}
public void error(String message, Throwable error) {
log.error( message, error );
messages.add( message + " " + error.getMessage(), 0 );
}
public void warn(String message) {
log.warn( message );
}
public boolean isDebugEnabled(){
return log.isDebugEnabled();
}
}
class MessageList {
static int MAX = 500;
LogEntry[] messages = new LogEntry[MAX];
int current = 0;
public MessageList() {
}
public synchronized void add(String message, int severity) {
LogEntry entry = new LogEntry();
entry.message = message;
entry.timestamp = new Date();
entry.severity = severity;
if ( current == MAX ) {
current = 0;
}
messages[current++] = entry;
}
public LogEntry[] getMessages() {
return messages;
}
public synchronized void cleanEntry() {
messages = new LogEntry[MAX];
}
}