    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
    015    package org.apache.tapestry5.internal.pageload;
    016
    017    import java.util.List;
    018
    019    import org.apache.tapestry5.func.F;
    020    import org.apache.tapestry5.func.Mapper;
    021    import org.apache.tapestry5.ioc.Resource;
    022    import org.apache.tapestry5.ioc.util.LocalizedNameGenerator;
    023    import org.apache.tapestry5.model.ComponentModel;
    024    import org.apache.tapestry5.services.pageload.ComponentResourceLocator;
    025    import org.apache.tapestry5.services.pageload.ComponentResourceSelector;
    026    import org.apache.tapestry5.services.templates.ComponentTemplateLocator;
    027
    028    public 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    }