1 /** 2 * This file Copyright (c) 2009-2010 Magnolia International 3 * Ltd. (http://www.magnolia-cms.com). All rights reserved. 4 * 5 * 6 * This file is dual-licensed under both the Magnolia 7 * Network Agreement and the GNU General Public License. 8 * You may elect to use one or the other of these licenses. 9 * 10 * This file is distributed in the hope that it will be 11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the 12 * implied warranty of MERCHANTABILITY or FITNESS FOR A 13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT. 14 * Redistribution, except as permitted by whichever of the GPL 15 * or MNA you select, is prohibited. 16 * 17 * 1. For the GPL license (GPL), you can redistribute and/or 18 * modify this file under the terms of the GNU General 19 * Public License, Version 3, as published by the Free Software 20 * Foundation. You should have received a copy of the GNU 21 * General Public License, Version 3 along with this program; 22 * if not, write to the Free Software Foundation, Inc., 51 23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 24 * 25 * 2. For the Magnolia Network Agreement (MNA), this file 26 * and the accompanying materials are made available under the 27 * terms of the MNA which accompanies this distribution, and 28 * is available at http://www.magnolia-cms.com/mna.html 29 * 30 * Any modifications to this file must keep this entire header 31 * intact. 32 * 33 */ 34 package info.magnolia.nodebuilder; 35 36 import info.magnolia.cms.core.Content; 37 import info.magnolia.cms.core.Content.ContentFilter; 38 import info.magnolia.cms.core.ItemType; 39 import info.magnolia.cms.util.ContentUtil; 40 import info.magnolia.cms.util.NodeTypeFilter; 41 42 import javax.jcr.RepositoryException; 43 44 /** 45 * Visits the hierarchy recursively and executes the operations on all nodes matching the filter. The recursion does not stop if a node does not match! 46 * The class has some static methods to build recursive operations easily. 47 * 48 * @author pbracher 49 * @version $Id: RecursiveOp.java 40185 2010-12-02 16:03:18Z pbaerfuss $ 50 */ 51 public class RecursiveOp extends AbstractNodeOperation { 52 53 /** 54 * Visits the hierarchy recursively and executes the operations on all nodes excluding meta data and jcr base nodes. The recursion does not stop if a node does not match! 55 */ 56 public static NodeOperation recursive(final NodeOperation... childrenOps) { 57 return recursive(ContentUtil.EXCLUDE_META_DATA_CONTENT_FILTER, childrenOps); 58 } 59 60 /** 61 * Visits the hierarchy recursively and executes the operations on all nodes matching a certain type. The recursion does not stop if a node does not match! 62 */ 63 public static NodeOperation recursive(final String type, final NodeOperation... childrenOps) { 64 return recursive(new NodeTypeFilter(type), childrenOps); 65 } 66 67 /** 68 * Visits the hierarchy recursively and executes the operations on all nodes matching a certain type. The recursion does not stop if a node does not match! 69 */ 70 public static NodeOperation recursive(final ItemType type, final NodeOperation... childrenOps) { 71 return recursive(new NodeTypeFilter(type), childrenOps); 72 } 73 74 public static NodeOperation recursive(final Content.ContentFilter filter, final NodeOperation... childrenOps) { 75 return new RecursiveOp(filter, childrenOps); 76 } 77 78 private final ContentFilter filter; 79 80 private final NodeOperation[] childrenOps; 81 82 /** 83 * Visits the hierarchy recursively and executes the operations on all nodes matching the filter. The recursion does not stop if a node does not match! 84 */ 85 public RecursiveOp(ContentFilter filter, NodeOperation[] childrenOps) { 86 this.filter = filter; 87 this.childrenOps = childrenOps; 88 } 89 90 protected Content doExec(Content context, final ErrorHandler errorHandler) throws RepositoryException { 91 try { 92 ContentUtil.visit(context, new ContentUtil.Visitor() { 93 public void visit(Content node) throws Exception { 94 if (filter.accept(node)) { 95 for (NodeOperation nodeOperation : childrenOps) { 96 nodeOperation.exec(node, errorHandler); 97 } 98 } 99 } 100 }, ContentUtil.ALL_NODES_CONTENT_FILTER); 101 } 102 catch (Exception e) { 103 if (e instanceof RepositoryException) { 104 throw (RepositoryException) e; 105 } else { 106 throw new RuntimeException(e); 107 } 108 } 109 return context; 110 } 111 }