001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.request.resource.caching.version; 018 019import java.util.regex.Pattern; 020 021import org.apache.wicket.request.resource.caching.IStaticCacheableResource; 022import org.apache.wicket.util.lang.Args; 023 024/** 025 * provides a static version string for all package resources 026 * 027 * @author Peter Ertl 028 * 029 * @since 1.5 030 */ 031public class StaticResourceVersion implements IResourceVersion 032{ 033 private final String version; 034 private final Pattern pattern; 035 036 /** 037 * create static version provider 038 * 039 * @param version 040 * static version string to deliver for all queries resources 041 */ 042 public StaticResourceVersion(String version) 043 { 044 this.version = Args.notNull(version, "version"); 045 this.pattern = Pattern.compile(Pattern.quote(version)); 046 } 047 048 @Override 049 public String getVersion(IStaticCacheableResource resource) 050 { 051 return version; 052 } 053 054 @Override 055 public Pattern getVersionPattern() 056 { 057 return pattern; 058 } 059}