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: LifeCycleStateConfiguration.java 16207 2007-04-15 11:56:45Z sfermigier $ 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.LifeCycleState; 020import org.nuxeo.ecm.core.lifecycle.impl.LifeCycleStateImpl; 021import org.w3c.dom.Element; 022import org.w3c.dom.NodeList; 023 024/** 025 * Configuration helper class for state configuration. 026 * 027 * @see org.nuxeo.ecm.core.lifecycle.extensions.LifeCycleDescriptor 028 * @see org.nuxeo.ecm.core.lifecycle.LifeCycleState 029 * @author <a href="mailto:ja@nuxeo.com">Julien Anguenot</a> 030 */ 031public class LifeCycleStateConfiguration { 032 033 private static final String TAG_STATE = "state"; 034 035 private static final String TAG_TRANSITION = "transition"; 036 037 private static final String ATTR_STATE_NAME = "name"; 038 039 private static final String ATTR_STATE_DESCRIPTION = "description"; 040 041 private static final String ATTR_STATE_INITIAL = "initial"; 042 043 /** The DOM element holding the states. */ 044 private final Element element; 045 046 public LifeCycleStateConfiguration(Element element) { 047 this.element = element; 048 } 049 050 private static Collection<String> getAllowedTransitionsFor(Element element) { 051 Collection<String> transitions = new ArrayList<String>(); 052 NodeList elements = element.getElementsByTagName(TAG_TRANSITION); 053 int len = elements.getLength(); 054 for (int i = 0; i < len; i++) { 055 Element elt = (Element) elements.item(i); 056 transitions.add(elt.getTextContent()); 057 } 058 return transitions; 059 } 060 061 public Collection<LifeCycleState> getStates() { 062 Collection<LifeCycleState> states = new ArrayList<LifeCycleState>(); 063 NodeList elements = element.getElementsByTagName(TAG_STATE); 064 int len = elements.getLength(); 065 for (int i = 0; i < len; i++) { 066 Element element = (Element) elements.item(i); 067 states.add(new LifeCycleStateImpl(element.getAttribute(ATTR_STATE_NAME), 068 element.getAttribute(ATTR_STATE_DESCRIPTION), getAllowedTransitionsFor(element), 069 Boolean.valueOf(element.getAttribute(ATTR_STATE_INITIAL)))); 070 } 071 return states; 072 } 073 074}