001/*
002 * (C) Copyright 2015 Nuxeo SA (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-2.1.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
016 */
017
018package org.nuxeo.ecm.showcase.content;
019
020import java.io.IOException;
021import java.util.Calendar;
022import java.util.Collections;
023import java.util.zip.ZipFile;
024
025import org.apache.commons.logging.Log;
026import org.apache.commons.logging.LogFactory;
027import org.nuxeo.common.utils.Path;
028import org.nuxeo.ecm.core.api.Blob;
029import org.nuxeo.ecm.core.api.CloseableFile;
030import org.nuxeo.ecm.core.api.CoreSession;
031import org.nuxeo.ecm.core.api.DocumentModel;
032import org.nuxeo.ecm.core.api.DocumentRef;
033import org.nuxeo.ecm.core.api.IdRef;
034import org.nuxeo.ecm.core.api.PathRef;
035import org.nuxeo.ecm.core.io.DocumentPipe;
036import org.nuxeo.ecm.core.io.DocumentReader;
037import org.nuxeo.ecm.core.io.DocumentWriter;
038import org.nuxeo.ecm.core.io.ExportedDocument;
039import org.nuxeo.ecm.core.io.impl.DocumentPipeImpl;
040import org.nuxeo.ecm.core.io.impl.plugins.NuxeoArchiveReader;
041import org.nuxeo.ecm.platform.audit.api.AuditLogger;
042import org.nuxeo.ecm.platform.audit.api.LogEntry;
043import org.nuxeo.ecm.platform.audit.api.Logs;
044import org.nuxeo.ecm.platform.filemanager.api.FileManager;
045import org.nuxeo.ecm.platform.filemanager.service.extension.ExportedZipImporter;
046import org.nuxeo.runtime.api.Framework;
047
048/**
049 * @author <a href="mailto:ak@nuxeo.com">Arnaud Kervern</a>
050 * @since 7.10
051 */
052public class ShowcaseContentImporter {
053    public static final String INITIALIZED_EVENT = "ShowcaseContentImported";
054
055    private static final Log log = LogFactory.getLog(ShowcaseContentImporter.class);
056
057    protected CoreSession session;
058
059    public ShowcaseContentImporter(CoreSession session) {
060        this.session = session;
061    }
062
063    public DocumentModel create(Blob blob) throws IOException {
064        if (isImported()) {
065            log.debug("Showcase Content already imported.");
066            return null;
067        }
068
069        FileManager importer = Framework.getLocalService(FileManager.class);
070        DocumentModel doc = create(session, blob, getImportPathRoot(), true);
071
072        markImportDone();
073        return doc;
074    }
075
076    protected DocumentModel create(CoreSession documentManager, Blob content, String path, boolean overwrite)
077            throws IOException {
078        try (CloseableFile source = content.getCloseableFile(".zip")) {
079            ZipFile zip = ExportedZipImporter.getArchiveFileIfValid(source.getFile());
080            if (zip == null) {
081                return null;
082            }
083            zip.close();
084
085            boolean importWithIds = false;
086            DocumentReader reader = new NuxeoArchiveReader(source.getFile());
087            ExportedDocument root = reader.read();
088            IdRef rootRef = new IdRef(root.getId());
089
090            if (documentManager.exists(rootRef)) {
091                DocumentModel target = documentManager.getDocument(rootRef);
092                if (target.getPath().removeLastSegments(1).equals(new Path(path))) {
093                    importWithIds = true;
094                }
095            }
096
097            DocumentWriter writer = new ShowcaseWriter(documentManager, path, 10);
098            reader.close();
099            reader = new NuxeoArchiveReader(source.getFile());
100
101            DocumentRef resultingRef;
102            if (overwrite && importWithIds) {
103                resultingRef = rootRef;
104            } else {
105                String rootName = root.getPath().lastSegment();
106                resultingRef = new PathRef(path, rootName);
107            }
108
109            try {
110                DocumentPipe pipe = new DocumentPipeImpl(10);
111                pipe.setReader(reader);
112                pipe.setWriter(writer);
113                pipe.run();
114            } catch (IOException e) {
115                log.warn(e, e);
116            } finally {
117                reader.close();
118                writer.close();
119            }
120            return documentManager.getDocument(resultingRef);
121        }
122    }
123
124    protected boolean isImported() {
125        return Framework.getService(Logs.class).getEventsCount(INITIALIZED_EVENT) > 0;
126    }
127
128    protected String getImportPathRoot() {
129        return session.query("Select * from Domain").get(0).getPathAsString();
130    }
131
132    protected void markImportDone() {
133        AuditLogger logger = Framework.getLocalService(AuditLogger.class);
134        LogEntry entry = logger.newLogEntry();
135        entry.setEventId(INITIALIZED_EVENT);
136        entry.setEventDate(Calendar.getInstance().getTime());
137
138        logger.addLogEntries(Collections.singletonList(entry));
139    }
140}