Java tutorial
/* * Druid - a distributed column store. * Copyright 2012 - 2015 Metamarkets Group Inc. * * Licensed 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 io.druid.indexing.common.task; import org.joda.time.DateTime; import org.joda.time.Interval; /** */ public class TaskUtils { public static String makeId(String id, final String typeName, String dataSource, Interval interval) { return id != null ? id : String.format("%s_%s_%s_%s_%s", typeName, dataSource, interval.getStart(), interval.getEnd(), new DateTime().toString()); } }