| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.apache.lenya.cms.site; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.ServiceSelector; |
| import org.apache.lenya.cms.publication.DocumentFactory; |
| import org.apache.lenya.cms.publication.DocumentLocator; |
| import org.apache.lenya.cms.publication.Publication; |
| |
| /** |
| * Utility to handle site structures. |
| * |
| * @version $Id$ |
| */ |
| public class SiteUtil { |
| |
| private SiteUtil() { |
| } |
| |
| /** |
| * Returns a sub-site starting with a certain node, which includes the node |
| * itself and all nodes which require this node, in preorder. |
| * |
| * @param manager The service manager. |
| * @param node The top-level document. |
| * @return A document set. |
| * @throws SiteException if an error occurs. |
| */ |
| public static NodeSet getSubSite(ServiceManager manager, SiteNode node) throws SiteException { |
| ServiceSelector selector = null; |
| SiteManager siteManager = null; |
| SiteNode[] subsite; |
| try { |
| selector = (ServiceSelector) manager.lookup(SiteManager.ROLE + "Selector"); |
| siteManager = (SiteManager) selector.select(node.getStructure().getPublication() |
| .getSiteManagerHint()); |
| |
| DocumentFactory map = node.getStructure().getPublication().getFactory(); |
| Set nodes = new HashSet(); |
| nodes.add(node); |
| |
| SiteNode[] requiringNodes = siteManager.getRequiringResources(map, node); |
| for (int i = 0; i < requiringNodes.length; i++) { |
| nodes.add(requiringNodes[i]); |
| } |
| |
| subsite = (SiteNode[]) nodes.toArray(new SiteNode[nodes.size()]); |
| } catch (Exception e) { |
| throw new SiteException(e); |
| } finally { |
| if (selector != null) { |
| if (siteManager != null) { |
| selector.release(siteManager); |
| } |
| manager.release(selector); |
| } |
| } |
| return new NodeSet(manager, subsite); |
| } |
| |
| /** |
| * @see org.apache.lenya.cms.site.SiteManager#getAvailableLocator(DocumentFactory, |
| * DocumentLocator) |
| * @param manager The service manager. |
| * @param factory The factory. |
| * @param locator The locator. |
| * @return A document. |
| * @throws SiteException if an error occurs. |
| */ |
| public static DocumentLocator getAvailableLocator(ServiceManager manager, |
| DocumentFactory factory, DocumentLocator locator) throws SiteException { |
| ServiceSelector selector = null; |
| SiteManager siteManager = null; |
| try { |
| selector = (ServiceSelector) manager.lookup(SiteManager.ROLE + "Selector"); |
| Publication pub = factory.getPublication(locator.getPublicationId()); |
| siteManager = (SiteManager) selector.select(pub.getSiteManagerHint()); |
| return siteManager.getAvailableLocator(factory, locator); |
| } catch (Exception e) { |
| throw new SiteException(e); |
| } finally { |
| if (selector != null) { |
| if (siteManager != null) { |
| selector.release(siteManager); |
| } |
| manager.release(selector); |
| } |
| } |
| } |
| |
| } |