Here you can find the source of getIndex(String index, long timestamp)
public static String getIndex(String index, long timestamp)
//package com.java2s; /**// w ww . j a v a 2 s .c om * Copyright (C) FuseSource, Inc. * http://fusesource.com * * 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. */ import java.text.SimpleDateFormat; import java.util.Date; public class Main { private static final SimpleDateFormat indexFormat = new SimpleDateFormat( "yyyy.MM.dd"); public static String getIndex(String index, long timestamp) { return index + "-" + indexFormat.format(new Date(timestamp)); } }