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 import info.magnolia.nodebuilder.Ops.AbstractOp; 42 43 import javax.jcr.RepositoryException; 44 45 /** 46 * 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! 47 * The class has some static methods to build recursive operations easily. 48 * @author pbracher 49 * @version $Id: RecursiveOp.java 32667 2010-03-13 00:37:06Z gjoseph $ 50 * 51 */ 52 public class RecursiveOp extends AbstractOp { 53 54 /** 55 * 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! 56 */ 57 public static NodeOperation recursive(final NodeOperation... childrenOps) { 58 return recursive(ContentUtil.EXCLUDE_META_DATA_CONTENT_FILTER, childrenOps); 59 } 60 61 /** 62 * 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! 63 */ 64 public static NodeOperation recursive(final String type, final NodeOperation... childrenOps) { 65 return recursive(new NodeTypeFilter(type), childrenOps); 66 } 67 68 /** 69 * 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! 70 */ 71 public static NodeOperation recursive(final ItemType type, final NodeOperation... childrenOps) { 72 return recursive(new NodeTypeFilter(type), childrenOps); 73 } 74 75 public static NodeOperation recursive(final Content.ContentFilter filter, final NodeOperation... childrenOps) { 76 return new RecursiveOp(filter, childrenOps); 77 } 78 79 private final ContentFilter filter; 80 81 private final NodeOperation[] childrenOps; 82 83 /** 84 * 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! 85 */ 86 public RecursiveOp(ContentFilter filter, NodeOperation[] childrenOps) { 87 this.filter = filter; 88 this.childrenOps = childrenOps; 89 } 90 91 Content doExec(Content context, final ErrorHandler errorHandler) throws RepositoryException { 92 try { 93 ContentUtil.visit(context, new ContentUtil.Visitor() { 94 public void visit(Content node) throws Exception { 95 if (filter.accept(node)) { 96 for (NodeOperation nodeOperation : childrenOps) { 97 nodeOperation.exec(node, errorHandler); 98 } 99 } 100 } 101 }, ContentUtil.ALL_NODES_CONTENT_FILTER); 102 } 103 catch (Exception e) { 104 if (e instanceof RepositoryException) { 105 throw (RepositoryException) e; 106 } else { 107 throw new RuntimeException(e); 108 } 109 } 110 return context; 111 } 112 }