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.kylin.metrics.lib.impl; import com.google.common.base.Strings; public enum TimePropertyEnum { YEAR("KYEAR_BEGIN_DATE"), MONTH("KMONTH_BEGIN_DATE"), WEEK_BEGIN_DATE("KWEEK_BEGIN_DATE"), DAY_DATE( "KDAY_DATE"), DAY_TIME( "KDAY_TIME"), TIME_HOUR("KTIME_HOUR"), TIME_MINUTE("KTIME_MINUTE"), TIME_SECOND("KTIME_SECOND"); private final String propertyName; TimePropertyEnum(String propertyName) { this.propertyName = propertyName; } public static TimePropertyEnum getByPropertyName(String propertyName) { if (Strings.isNullOrEmpty(propertyName)) { return null; } for (TimePropertyEnum property : TimePropertyEnum.values()) { if (property.propertyName.equals(propertyName.toUpperCase())) { return property; } } return null; } public String toString() { return propertyName; } }