Java tutorial
/** * 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 <http://www.gnu.org/licenses/>. */ package org.graylog2.indexer.searches.timeranges; import com.google.common.collect.ImmutableMap; import org.graylog2.plugin.Tools; import org.joda.time.DateTime; import org.joda.time.DateTimeZone; import org.joda.time.Seconds; import java.util.Map; public class RelativeRange implements TimeRange { private final int range; public RelativeRange(int range) throws InvalidRangeParametersException { if (range < 0) { throw new InvalidRangeParametersException(); } this.range = range; } @Override public Type getType() { return Type.RELATIVE; } @Override public Map<String, Object> getPersistedConfig() { return ImmutableMap.<String, Object>of("type", getType().toString().toLowerCase(), "range", getRange()); } public int getRange() { return range; } @Override public DateTime getFrom() { if (getRange() > 0) { return Tools.iso8601().minus(Seconds.seconds(getRange())); } return new DateTime(0, DateTimeZone.UTC); } @Override public DateTime getTo() { return Tools.iso8601(); } }