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 */ 012 013package org.nuxeo.ecm.core.api.localconfiguration; 014 015import org.apache.commons.logging.Log; 016import org.apache.commons.logging.LogFactory; 017import org.nuxeo.ecm.core.api.CoreSession; 018import org.nuxeo.ecm.core.api.DocumentModel; 019import org.nuxeo.ecm.core.api.DocumentRef; 020import org.nuxeo.runtime.model.DefaultComponent; 021 022/** 023 * Default implementation of {@code LocalConfigurationService}. 024 * 025 * @author <a href="mailto:troger@nuxeo.com">Thomas Roger</a> 026 * @since 5.4.2 027 */ 028public class LocalConfigurationServiceImpl extends DefaultComponent implements LocalConfigurationService { 029 030 private static final Log log = LogFactory.getLog(LocalConfigurationServiceImpl.class); 031 032 @Override 033 public <T extends LocalConfiguration> T getConfiguration(Class<T> configurationClass, String configurationFacet, 034 DocumentModel currentDoc) { 035 if (currentDoc == null || currentDoc.getRef() == null) { 036 return null; 037 } 038 039 CoreSession session = currentDoc.getCoreSession(); 040 if (session == null) { 041 return null; 042 } 043 044 T localConfiguration = session.adaptFirstMatchingDocumentWithFacet(currentDoc.getRef(), configurationFacet, 045 configurationClass); 046 if (localConfiguration == null) { 047 // no local configuration found 048 return null; 049 } 050 while (localConfiguration.canMerge()) { 051 DocumentRef parentRef = session.getParentDocumentRef(localConfiguration.getDocumentRef()); 052 if (parentRef == null) { 053 DocumentModel parentDoc = session.getParentDocument(localConfiguration.getDocumentRef()); 054 if (parentDoc == null) { 055 break; 056 } 057 parentRef = parentDoc.getRef(); 058 if (parentRef == null) { 059 break; 060 } 061 } 062 T parentConfiguration = session.adaptFirstMatchingDocumentWithFacet(parentRef, configurationFacet, 063 configurationClass); 064 if (parentConfiguration == null) { 065 // stop merging 066 break; 067 } 068 localConfiguration.merge(parentConfiguration); 069 } 070 return localConfiguration; 071 } 072 073}