001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Dragos Mihalache
018 *     Florent Guillaume
019 */
020
021package org.nuxeo.ecm.core.versioning;
022
023import org.nuxeo.ecm.core.api.DocumentModel;
024import org.nuxeo.ecm.core.api.facet.VersioningDocument;
025import org.nuxeo.runtime.api.Framework;
026
027/**
028 * Adapter showing the versioning aspects of documents.
029 */
030public class VersioningDocumentAdapter implements VersioningDocument {
031
032    public final DocumentModel doc;
033
034    public final VersioningService service;
035
036    public VersioningDocumentAdapter(DocumentModel doc) {
037        service = Framework.getService(VersioningService.class);
038        this.doc = doc;
039    }
040
041    @Override
042    public Long getMajorVersion() {
043        return Long.valueOf(getValidVersionNumber(VersioningService.MAJOR_VERSION_PROP));
044    }
045
046    @Override
047    public Long getMinorVersion() {
048        return Long.valueOf(getValidVersionNumber(VersioningService.MINOR_VERSION_PROP));
049    }
050
051    @Override
052    public String getVersionLabel() {
053        return service.getVersionLabel(doc);
054    }
055
056    private long getValidVersionNumber(String propName) {
057        Object propVal = doc.getPropertyValue(propName);
058        return (propVal == null || !(propVal instanceof Long)) ? 0 : ((Long) propVal).longValue();
059    }
060
061}