org.graylog.events.fields.providers.AbstractFieldValueProvider Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog 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.
*
* Graylog 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 Graylog. If not, see .
*/
package org.graylog.events.fields.providers;
import org.graylog.events.event.EventWithContext;
import org.graylog.events.fields.FieldValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public abstract class AbstractFieldValueProvider implements FieldValueProvider {
public interface Factory extends FieldValueProvider.Factory {
@Override
TYPE create(Config config);
}
private static final Logger LOG = LoggerFactory.getLogger(AbstractFieldValueProvider.class);
private final Config config;
public AbstractFieldValueProvider(Config config) {
this.config = config;
}
@Override
public FieldValue get(String fieldName, EventWithContext eventWithContext) {
try {
return doGet(fieldName, eventWithContext);
} catch (Exception e) {
LOG.error("Couldn't execute field value provider: {}", config, e);
return FieldValue.error();
}
}
protected abstract FieldValue doGet(String fieldName, EventWithContext eventWithContext);
}