001 // Copyright 2005 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // 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 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 015 package org.apache.tapestry.asset; 016 017 import java.util.Locale; 018 019 import org.apache.hivemind.ApplicationRuntimeException; 020 import org.apache.hivemind.ClassResolver; 021 import org.apache.hivemind.Location; 022 import org.apache.hivemind.Resource; 023 import org.apache.hivemind.util.ClasspathResource; 024 import org.apache.tapestry.IAsset; 025 import org.apache.tapestry.engine.IEngineService; 026 027 /** 028 * Creates instances of {@link org.apache.tapestry.asset.PrivateAsset}, which are the holders of 029 * classpath: resources. 030 * 031 * @author Howard M. Lewis Ship 032 * @since 4.0 033 */ 034 public class ClasspathAssetFactory implements AssetFactory 035 { 036 private ClassResolver _classResolver; 037 038 private IEngineService _assetService; 039 040 public IAsset createAsset(Resource baseResource, String path, Locale locale, Location location) 041 { 042 Resource asset = baseResource.getRelativeResource(path); 043 Resource localized = asset.getLocalization(locale); 044 045 if (localized == null) 046 throw new ApplicationRuntimeException(AssetMessages.missingAsset(path, baseResource), 047 location, null); 048 049 return createAsset(localized, location); 050 } 051 052 public IAsset createAbsoluteAsset(String path, Locale locale, Location location) 053 { 054 Resource base = new ClasspathResource(_classResolver, path); 055 Resource localized = base.getLocalization(locale); 056 057 if (localized == null) 058 throw new ApplicationRuntimeException(AssetMessages.missingClasspathResource(path), 059 location, null); 060 061 return createAsset(localized, location); 062 } 063 064 public IAsset createAsset(Resource resource, Location location) 065 { 066 ClasspathResource cr = (ClasspathResource) resource; 067 068 return new PrivateAsset(cr, _assetService, location); 069 } 070 071 public void setAssetService(IEngineService assetService) 072 { 073 _assetService = assetService; 074 } 075 076 public void setClassResolver(ClassResolver classResolver) 077 { 078 _classResolver = classResolver; 079 } 080 }