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 import org.apache.tapestry.l10n.ResourceLocalizer; 027 028 /** 029 * Creates instances of {@link org.apache.tapestry.asset.PrivateAsset}, which are the holders of 030 * classpath: resources. 031 * 032 * @author Howard M. Lewis Ship 033 * @since 4.0 034 */ 035 public class ClasspathAssetFactory implements AssetFactory 036 { 037 private ClassResolver _classResolver; 038 039 private IEngineService _assetService; 040 041 private ResourceLocalizer _localizer; 042 043 public IAsset createAsset(Resource baseResource, String path, Locale locale, Location location) 044 { 045 Resource asset = baseResource.getRelativeResource(path); 046 Resource localized = _localizer.findLocalization(asset, locale); 047 048 if (localized == null) 049 throw new ApplicationRuntimeException(AssetMessages.missingAsset(path, baseResource), 050 location, null); 051 052 return createAsset(localized, location); 053 } 054 055 public IAsset createAbsoluteAsset(String path, Locale locale, Location location) 056 { 057 Resource base = new ClasspathResource(_classResolver, path); 058 Resource localized = _localizer.findLocalization(base, locale); 059 060 if (localized == null) 061 throw new ApplicationRuntimeException(AssetMessages.missingClasspathResource(path), 062 location, null); 063 064 return createAsset(localized, location); 065 } 066 067 public IAsset createAsset(Resource resource, Location location) 068 { 069 ClasspathResource cr = (ClasspathResource) resource; 070 071 return new PrivateAsset(cr, _assetService, location); 072 } 073 074 public void setAssetService(IEngineService assetService) 075 { 076 _assetService = assetService; 077 } 078 079 public void setClassResolver(ClassResolver classResolver) 080 { 081 _classResolver = classResolver; 082 } 083 084 public void setLocalizer(ResourceLocalizer localizer) 085 { 086 _localizer = localizer; 087 } 088 }