001/*
002 *  Copyright 2025 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.cms.content;
017
018import java.util.Optional;
019
020import org.apache.avalon.framework.component.Component;
021import org.apache.avalon.framework.service.ServiceException;
022import org.apache.avalon.framework.service.ServiceManager;
023import org.apache.avalon.framework.service.Serviceable;
024import org.apache.commons.lang3.StringUtils;
025
026import org.ametys.cms.contenttype.ContentType;
027import org.ametys.cms.contenttype.ContentTypesHelper;
028import org.ametys.runtime.model.View;
029
030/**
031 * Default implementation of a {@link ContentViewProvider}
032 */
033public class DefaultContentViewProvider implements ContentViewProvider, Component, Serviceable
034{
035    /** The content types helper */
036    protected ContentTypesHelper _contentTypesHelper;
037    
038    public void service(ServiceManager manager) throws ServiceException
039    {
040        _contentTypesHelper = (ContentTypesHelper) manager.lookup(ContentTypesHelper.ROLE);
041    }
042
043    public View getView(String viewName, String[] contentTypeIds, String[] mixinIds)
044    {
045        return _contentTypesHelper.getView(viewName, contentTypeIds, mixinIds);
046    }
047
048    public View getViewWithFallback(String viewName, String fallbackViewName, String[] contentTypeIds, String[] mixinIds)
049    {
050        String usedFallbackViewName = Optional.ofNullable(fallbackViewName)
051                                              .filter(StringUtils::isNotBlank)
052                                              .orElse(ContentType.MAIN_VIEW_NAME);
053
054        // Use the fallbackViewName if no viewName is provided
055        String usedViewName = Optional.ofNullable(viewName)
056                                      .filter(StringUtils::isNotBlank)
057                                      .orElse(usedFallbackViewName);
058
059        View view = getView(usedViewName, contentTypeIds, mixinIds);
060
061        if (view == null && !usedViewName.equals(usedFallbackViewName))
062        {
063            view = getView(usedFallbackViewName, contentTypeIds, mixinIds);
064        }
065
066        return view;
067    }
068}