Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.druid.server.coordinator.rules; import com.fasterxml.jackson.annotation.JsonCreator; import com.fasterxml.jackson.annotation.JsonProperty; import org.apache.druid.timeline.DataSegment; import org.joda.time.DateTime; import org.joda.time.Interval; import org.joda.time.Period; /** */ public class PeriodDropRule extends DropRule { private static final boolean DEFAULT_INCLUDE_FUTURE = true; private final Period period; private final boolean includeFuture; @JsonCreator public PeriodDropRule(@JsonProperty("period") Period period, @JsonProperty("includeFuture") Boolean includeFuture) { this.period = period; this.includeFuture = includeFuture == null ? DEFAULT_INCLUDE_FUTURE : includeFuture; } @Override @JsonProperty public String getType() { return "dropByPeriod"; } @JsonProperty public Period getPeriod() { return period; } @JsonProperty public boolean isIncludeFuture() { return includeFuture; } @Override public boolean appliesTo(DataSegment segment, DateTime referenceTimestamp) { return appliesTo(segment.getInterval(), referenceTimestamp); } @Override public boolean appliesTo(Interval theInterval, DateTime referenceTimestamp) { final Interval currInterval = new Interval(period, referenceTimestamp); if (includeFuture) { return currInterval.getStartMillis() <= theInterval.getStartMillis(); } else { return currInterval.contains(theInterval); } } }