001/* 002 * (C) Copyright 2010 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 018package org.nuxeo.ecm.directory.impl; 019 020import java.util.regex.Pattern; 021 022import org.apache.commons.logging.Log; 023import org.apache.commons.logging.LogFactory; 024import org.nuxeo.ecm.core.api.DocumentModel; 025import org.nuxeo.ecm.core.api.PropertyException; 026import org.nuxeo.ecm.directory.BaseSession; 027import org.nuxeo.ecm.directory.Directory; 028import org.nuxeo.ecm.directory.DirectoryException; 029import org.nuxeo.ecm.directory.EntryAdaptor; 030 031/** 032 * Simple entry adaptor implementation that leaves the entry as editable if the specified field value matches the 033 * provided regexp or set the readonly flag of the entry to true if the value of the field does not match the regexp. 034 * <p> 035 * In any case, if the readonly flag of the adapted entry is already set to true, this value is kept unchanged. 036 */ 037public class WritePolicyEntryAdaptor implements EntryAdaptor { 038 039 public static final Log log = LogFactory.getLog(WritePolicyEntryAdaptor.class); 040 041 protected String fieldName; 042 043 protected Pattern pattern; 044 045 public DocumentModel adapt(Directory directory, DocumentModel entry) throws DirectoryException { 046 if (fieldName == null || pattern == null) { 047 log.warn(getClass().getName() + " is missing configuration parameters"); 048 return entry; 049 } 050 if (BaseSession.isReadOnlyEntry(entry)) { 051 // keep already existing flag 052 return entry; 053 } 054 try { 055 Object fieldValue = entry.getProperty(directory.getSchema(), fieldName); 056 String value = fieldValue != null ? fieldValue.toString() : ""; 057 if (pattern.matcher(value).matches()) { 058 BaseSession.setReadWriteEntry(entry); 059 } else { 060 BaseSession.setReadOnlyEntry(entry); 061 } 062 } catch (PropertyException e) { 063 throw new DirectoryException( 064 String.format( 065 "The field '%s' of entry '%s' could not be adapt and map on directory '%s', check that the field exist in the schema", 066 fieldName, entry.getId(), directory.getName()), e); 067 068 } 069 return entry; 070 } 071 072 public void setParameter(String name, String value) { 073 if ("fieldName".equals(name)) { 074 fieldName = value; 075 } else if ("regexp".equals(name)) { 076 pattern = Pattern.compile(value); 077 } else { 078 log.warn("unexpected parameter " + name + " for class " + getClass().getName()); 079 } 080 } 081 082}