001// *************************************************************************************************************************** 002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * 003// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * 004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * 005// * with the License. You may obtain a copy of the License at * 006// * * 007// * http://www.apache.org/licenses/LICENSE-2.0 * 008// * * 009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * 010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * 011// * specific language governing permissions and limitations under the License. * 012// *************************************************************************************************************************** 013package org.apache.juneau.http.header; 014 015import static org.apache.juneau.http.Constants.*; 016 017import java.util.function.*; 018 019import org.apache.juneau.http.annotation.*; 020import org.apache.juneau.internal.*; 021 022/** 023 * Represents a parsed <l>X-Client-Version</l> HTTP request header. 024 */ 025@Header("X-Client-Version") 026public class ClientVersion extends BasicStringHeader { 027 028 private static final long serialVersionUID = 1L; 029 030 private static final Cache<String,ClientVersion> CACHE = new Cache<>(NOCACHE, CACHE_MAX_SIZE); 031 032 /** 033 * Returns a parsed and cached header. 034 * 035 * @param value 036 * The header value. 037 * @return A cached {@link ClientVersion} object. 038 */ 039 public static ClientVersion of(String value) { 040 if (value == null) 041 return null; 042 ClientVersion x = CACHE.get(value); 043 if (x == null) 044 x = CACHE.put(value, new ClientVersion(value)); 045 return x; 046 } 047 048 /** 049 * Convenience creator. 050 * 051 * @param value 052 * The header value. 053 * <br>Can be any of the following: 054 * <ul> 055 * <li>{@link String} 056 * <li>Anything else - Converted to <c>String</c> then parsed. 057 * </ul> 058 * @return A new {@link ClientVersion} object. 059 */ 060 public static ClientVersion of(Object value) { 061 if (value == null) 062 return null; 063 return new ClientVersion(value); 064 } 065 066 /** 067 * Convenience creator using supplier. 068 * 069 * <p> 070 * Header value is re-evaluated on each call to {@link #getValue()}. 071 * 072 * @param value 073 * The header value supplier. 074 * <br>Can be any of the following: 075 * <ul> 076 * <li>{@link String} 077 * <li>Anything else - Converted to <c>String</c> then parsed. 078 * </ul> 079 * @return A new {@link ClientVersion} object. 080 */ 081 public static ClientVersion of(Supplier<?> value) { 082 if (value == null) 083 return null; 084 return new ClientVersion(value); 085 } 086 087 /** 088 * Constructor. 089 * 090 * @param value 091 * The header value. 092 * <br>Can be any of the following: 093 * <ul> 094 * <li>{@link String} 095 * <li>Anything else - Converted to <c>String</c> then parsed. 096 * <li>A {@link Supplier} of anything on this list. 097 * </ul> 098 */ 099 public ClientVersion(Object value) { 100 super("X-Client-Version", value); 101 } 102 103 /** 104 * Constructor 105 * 106 * @param value 107 * The header value. 108 */ 109 public ClientVersion(String value) { 110 this((Object)value); 111 } 112}