org.graylog.plugins.pipelineprocessor.functions.dates.ParseUnixMilliseconds 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.plugins.pipelineprocessor.functions.dates;
import com.google.common.collect.ImmutableList;
import org.graylog.plugins.pipelineprocessor.EvaluationContext;
import org.graylog.plugins.pipelineprocessor.ast.functions.FunctionArgs;
import org.graylog.plugins.pipelineprocessor.ast.functions.ParameterDescriptor;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
public class ParseUnixMilliseconds extends TimezoneAwareFunction {
public static final String NAME = "parse_unix_milliseconds";
private static final String VALUE = "value";
private final ParameterDescriptor valueParam;
public ParseUnixMilliseconds() {
valueParam = ParameterDescriptor.integer(VALUE).description("UNIX millisecond timestamp to parse").build();
}
@Override
protected String getName() {
return NAME;
}
@Override
protected ImmutableList params() {
return ImmutableList.of(valueParam);
}
@Override
public DateTime evaluate(FunctionArgs args, EvaluationContext context, DateTimeZone timezone) {
final Long unixMillis = valueParam.required(args, context);
return unixMillis == null ? null : new DateTime(unixMillis, timezone);
}
@Override
protected String description() {
return "Converts a UNIX millisecond timestamp into a date";
}
}