/**
* This file is part of Graylog2.
*
* Graylog2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog2. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.outputs;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.configuration.Configuration;
import org.graylog2.plugin.configuration.ConfigurationRequest;
import org.graylog2.plugin.configuration.fields.ConfigurationField;
import org.graylog2.plugin.configuration.fields.TextField;
import org.graylog2.plugin.outputs.MessageOutput;
import org.graylog2.plugin.outputs.MessageOutputConfigurationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* @author Dennis Oelkers <dennis@torch.sh>
*/
public class LoggingOutput implements MessageOutput {
private static final Logger LOG = LoggerFactory.getLogger(LoggingOutput.class);
private final AtomicBoolean isRunning = new AtomicBoolean(false);
private Configuration configuration;
@Override
public void initialize(Configuration config) throws MessageOutputConfigurationException {
LOG.info("Initializing");
configuration = config;
isRunning.set(true);
}
@Override
public void stop() {
isRunning.set(false);
LOG.info("Stopping");
}
@Override
public boolean isRunning() {
return isRunning.get();
}
@Override
public void write(Message message) throws Exception {
LOG.info("{} {}", configuration.getString("prefix"), message);
}
@Override
public void write(List<Message> messages) throws Exception {
for (Message message : messages) {
write(message);
}
}
@Override
public ConfigurationRequest getRequestedConfiguration() {
ConfigurationRequest configurationRequest = new ConfigurationRequest();
configurationRequest.addField(new TextField("prefix", "Prefix", "Writing message: ", "How to prefix the message before logging it", ConfigurationField.Optional.OPTIONAL));
return configurationRequest;
}
@Override
public String getName() {
return "STDOUT Output";
}
@Override
public String getHumanName() {
return "An output writing every message to STDOUT.";
}
@Override
public String getLinkToDocs() {
return null;
}
}