/*
* ProActive Parallel Suite(TM):
* The Open Source library for parallel and distributed
* Workflows & Scheduling, Orchestration, Cloud Automation
* and Big Data Analysis on Enterprise Grids & Clouds.
*
* Copyright (c) 2007 - 2017 ActiveEon
* Contact: contact@activeeon.com
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation: version 3 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* If needed, contact us to obtain a release under GPL Version 2 or 3
* or a different license than the AGPL.
*/
package org.ow2.proactive.utils.appenders;
import java.util.Collection;
import org.apache.log4j.MDC;
import org.apache.log4j.spi.LoggingEvent;
/**
*
* An appender that redirects logging events to all files
* specified in "filenames" property in log4j context.
*
* It is used in the RM to during the selection script execution.
* If the selection is performed for several tasks it writes logs
* to all the tasks files.
*
*/
public class MultipleFileAppender extends FileAppender {
public static final String FILE_NAMES = "filenames";
@Override
public void append(LoggingEvent event) {
Object value = MDC.get(FILE_NAMES);
if (value != null) {
Collection<String> names = (Collection<String>) value;
for (String fileName : names) {
append(fileName, event);
}
}
}
}