001/* 002 * (C) Copyright 2006-2007 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 * $Id: JOOoConvertPluginImpl.java 18651 2007-05-13 20:28:53Z sfermigier $ 018 */ 019 020package org.nuxeo.ecm.platform.ui.web.restAPI.service; 021 022import java.util.ArrayList; 023import java.util.HashMap; 024import java.util.List; 025import java.util.Map; 026 027import org.apache.commons.logging.Log; 028import org.apache.commons.logging.LogFactory; 029import org.nuxeo.runtime.model.ComponentContext; 030import org.nuxeo.runtime.model.ComponentInstance; 031import org.nuxeo.runtime.model.DefaultComponent; 032import org.restlet.Restlet; 033 034/** 035 * Runtime service used to register restlets 036 * 037 * @author <a href="mailto:td@nuxeo.com">Thierry Delprat</a> 038 */ 039public class PluggableRestletService extends DefaultComponent { 040 041 public static final String NAME = "org.nuxeo.ecm.platform.ui.web.restAPI.service.PluggableRestletService"; 042 043 private static final Log log = LogFactory.getLog(PluggableRestletService.class); 044 045 private Map<String, RestletPluginDescriptor> restletsDescriptors; 046 047 @Override 048 public void activate(ComponentContext context) { 049 restletsDescriptors = new HashMap<String, RestletPluginDescriptor>(); 050 } 051 052 @Override 053 public void deactivate(ComponentContext context) { 054 restletsDescriptors = null; 055 } 056 057 private void mergeDescriptors(RestletPluginDescriptor newContrib) { 058 RestletPluginDescriptor oldDescriptor = restletsDescriptors.get(newContrib.getName()); 059 060 // Enable/Disable 061 if (newContrib.getEnabled() != null) { 062 oldDescriptor.setEnabled(newContrib.getEnabled()); 063 } 064 065 // override URL 066 if (newContrib.getUrlPatterns() != null && !newContrib.getUrlPatterns().isEmpty()) { 067 oldDescriptor.getUrlPatterns().addAll(newContrib.getUrlPatterns()); 068 } 069 070 // override class (NXP-170) 071 if (newContrib.getClassName() != null) { 072 oldDescriptor.setClassName(newContrib.getClassName()); 073 } 074 } 075 076 @Override 077 public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 078 079 RestletPluginDescriptor descriptor = (RestletPluginDescriptor) contribution; 080 081 if (restletsDescriptors.containsKey(descriptor.getName())) { 082 mergeDescriptors(descriptor); 083 log.debug("merged RestletDescriptor: " + descriptor.getName()); 084 } else { 085 restletsDescriptors.put(descriptor.getName(), descriptor); 086 log.debug("registered RestletDescriptor: " + descriptor.getName()); 087 } 088 } 089 090 public List<String> getContributedRestletNames() { 091 List<String> res = new ArrayList<String>(); 092 093 res.addAll(restletsDescriptors.keySet()); 094 return res; 095 } 096 097 public RestletPluginDescriptor getContributedRestletDescriptor(String name) { 098 if (restletsDescriptors.containsKey(name)) { 099 return restletsDescriptors.get(name); 100 } else { 101 return null; 102 } 103 } 104 105 public Restlet getContributedRestletByName(String name) { 106 if (restletsDescriptors.containsKey(name)) { 107 108 RestletPluginDescriptor rpd = restletsDescriptors.get(name); 109 if (rpd == null) { 110 log.error("Error while creating Restlet instance. Cannot get RestletPluginDescriptor for name: " + name); 111 return null; 112 } 113 Class<Restlet> theClass = rpd.getClassName(); 114 if (theClass == null) { 115 log.error("Error while creating Restlet instance. Class not available for restlet descriptor: " + name); 116 return null; 117 } 118 Restlet restlet; 119 try { 120 restlet = theClass.newInstance(); 121 } catch (ReflectiveOperationException e) { 122 log.error("Error while creating Restlet instance for name " + name, e); 123 return null; 124 } 125 return restlet; 126 } else { 127 log.error("Restlet " + name + " is not registred"); 128 return null; 129 } 130 } 131 132}