001/* 002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * Nuxeo - initial API and implementation 011 * $Id: LifeCycleTransitionConfiguration.java 16046 2007-04-12 14:34:58Z fguillaume $ 012 */ 013 014package org.nuxeo.ecm.core.lifecycle.extensions; 015 016import java.util.ArrayList; 017import java.util.Collection; 018 019import org.nuxeo.ecm.core.lifecycle.LifeCycleTransition; 020import org.nuxeo.ecm.core.lifecycle.impl.LifeCycleTransitionImpl; 021import org.w3c.dom.Element; 022import org.w3c.dom.NodeList; 023 024/** 025 * Configuration helper class for transition. 026 * 027 * @see org.nuxeo.ecm.core.lifecycle.impl.LifeCycleServiceImpl 028 * @see org.nuxeo.ecm.core.lifecycle.LifeCycleTransition 029 * @author <a href="mailto:ja@nuxeo.com">Julien Anguenot</a> 030 */ 031public class LifeCycleTransitionConfiguration { 032 033 private static final String TAG_LIFECYCLE = "lifecycle"; 034 035 private static final String TAG_TRANSITIONS = "transitions"; 036 037 private static final String TAG_TRANSITION = "transition"; 038 039 private static final String ATTR_TRANSITION_NAME = "name"; 040 041 private static final String TAG_TRANSITION_DESCRIPTION = "description"; 042 043 private static final String ATTR_TRANSITION_DESTINATION_STATE = "destinationState"; 044 045 /** The DOM element holding the states. */ 046 private final Element element; 047 048 public LifeCycleTransitionConfiguration(Element element) { 049 this.element = element; 050 } 051 052 public Collection<LifeCycleTransition> getTransitions() { 053 Collection<LifeCycleTransition> transitions = new ArrayList<LifeCycleTransition>(); 054 055 NodeList transitionsElements = element.getElementsByTagName(TAG_TRANSITIONS); 056 Element transitionsElement = null; 057 if (transitionsElements.getLength() > 0) { 058 // NXP-1472 : don't get the first element, but the first one attached to <lifecycle> 059 for (int i = 0; i < transitionsElements.getLength(); i++) { 060 transitionsElement = (Element) transitionsElements.item(i); 061 if (TAG_LIFECYCLE.equals(transitionsElement.getParentNode().getNodeName())) { 062 break; 063 } 064 } 065 } else { 066 return transitions; 067 } 068 NodeList elements = transitionsElement.getElementsByTagName(TAG_TRANSITION); 069 int len = elements.getLength(); 070 for (int i = 0; i < len; i++) { 071 Element element = (Element) elements.item(i); 072 073 String name = element.getAttribute(ATTR_TRANSITION_NAME); 074 String destinationState = element.getAttribute(ATTR_TRANSITION_DESTINATION_STATE); 075 String description = ""; 076 077 if (element.getElementsByTagName(TAG_TRANSITION_DESCRIPTION).getLength() > 0) { 078 description = element.getElementsByTagName(TAG_TRANSITION_DESCRIPTION).item(0).getTextContent(); 079 } 080 transitions.add(new LifeCycleTransitionImpl(name, description, destinationState)); 081 } 082 return transitions; 083 } 084 085}