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 * $Id$ 018 */ 019 020package org.nuxeo.ecm.platform.ui.web.restAPI; 021 022import org.dom4j.dom.DOMDocument; 023import org.dom4j.dom.DOMDocumentFactory; 024import org.nuxeo.ecm.core.api.CoreInstance; 025import org.nuxeo.ecm.core.api.CoreSession; 026import org.nuxeo.ecm.core.api.DocumentModel; 027import org.nuxeo.ecm.core.api.DocumentRef; 028import org.nuxeo.ecm.core.api.IdRef; 029import org.nuxeo.ecm.core.api.NuxeoException; 030import org.restlet.data.Request; 031import org.restlet.data.Response; 032 033/** 034 * Base class for stateless restlet, i.e. Restlets that don't use Seam. 035 * 036 * @author tiry 037 */ 038public class BaseStatelessNuxeoRestlet extends BaseNuxeoRestlet { 039 040 protected CoreSession session; 041 042 protected DocumentRef targetDocRef; 043 044 protected DocumentModel targetDocument; 045 046 protected boolean initRepository(Response res, String repoId) { 047 DOMDocumentFactory domFactory = new DOMDocumentFactory(); 048 DOMDocument result = (DOMDocument) domFactory.createDocument(); 049 if (repoId == null || repoId.equals("*")) { 050 handleError(result, res, "you must specify a repository"); 051 return false; 052 } 053 try { 054 session = CoreInstance.openCoreSession(repoId); 055 } catch (NuxeoException e) { 056 handleError(result, res, e); 057 return false; 058 } 059 return true; 060 } 061 062 protected boolean initRepositoryAndTargetDocument(Response res, String repoId, String docId) { 063 064 DOMDocumentFactory domFactory = new DOMDocumentFactory(); 065 DOMDocument result = (DOMDocument) domFactory.createDocument(); 066 067 if (repoId == null || repoId.equals("*")) { 068 handleError(result, res, "you must specify a repository"); 069 return false; 070 } 071 072 if (docId == null || docId.equals("")) { 073 handleError(result, res, "you must specify a document"); 074 return false; 075 } 076 077 try { 078 session = CoreInstance.openCoreSession(repoId); 079 } catch (NuxeoException e) { 080 handleError(result, res, e); 081 return false; 082 } 083 084 targetDocRef = new IdRef(docId); 085 086 try { 087 targetDocument = session.getDocument(targetDocRef); 088 } catch (NuxeoException e) { 089 handleError(result, res, "Unable to open " + repoId + " repository"); 090 return false; 091 } 092 093 return true; 094 } 095 096 protected void cleanUp() { 097 if (session != null) { 098 session.close(); 099 session = null; 100 targetDocRef = null; 101 targetDocument = null; 102 } 103 } 104 105 @Override 106 public void handle(Request request, Response response) { 107 try { 108 doHandleStatelessRequest(request, response); 109 } finally { 110 cleanUp(); 111 } 112 } 113 114 protected void doHandleStatelessRequest(Request req, Response res) { 115 } 116 117}