001// Copyright 2011 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
015package org.apache.tapestry5.internal.pageload;
016
017import java.util.List;
018
019import org.apache.tapestry5.func.F;
020import org.apache.tapestry5.func.Mapper;
021import org.apache.tapestry5.ioc.Resource;
022import org.apache.tapestry5.ioc.util.LocalizedNameGenerator;
023import org.apache.tapestry5.model.ComponentModel;
024import org.apache.tapestry5.services.pageload.ComponentResourceLocator;
025import org.apache.tapestry5.services.pageload.ComponentResourceSelector;
026import org.apache.tapestry5.services.templates.ComponentTemplateLocator;
027
028public class DefaultComponentResourceLocator implements ComponentResourceLocator
029{
030    private ComponentTemplateLocator componentTemplateLocator;
031
032    public DefaultComponentResourceLocator(ComponentTemplateLocator componentTemplateLocator)
033    {
034        this.componentTemplateLocator = componentTemplateLocator;
035    }
036
037    public Resource locateTemplate(ComponentModel model, ComponentResourceSelector selector)
038    {
039        // For 5.2 compatibility, this implementation delegates to the older
040        // ComponentTemplateLocator command chain. That may be removed in 5.4.
041
042        return componentTemplateLocator.locateTemplate(model, selector.locale);
043    }
044
045    public List<Resource> locateMessageCatalog(final Resource baseResource, ComponentResourceSelector selector)
046    {
047        String baseName = baseResource.getFile();
048
049        return F.flow(new LocalizedNameGenerator(baseName, selector.locale).iterator()).map(new Mapper<String, Resource>()
050        {
051            public Resource map(String element)
052            {
053                return baseResource.forFile(element);
054            }
055        }).toList();
056    }
057
058}