eu.forgetit.middleware.cmis.CmisRepositoryManager.java Source code

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Here is the source code for eu.forgetit.middleware.cmis.CmisRepositoryManager.java

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/**
 * CmisRepositoryManager.java
 * Author: Francesco Gallo (gallo@eurix.it)
 * 
 * This file is part of ForgetIT Preserve-or-Forget (PoF) Middleware.
 * 
 * Copyright (C) 2013-2016 ForgetIT Consortium - www.forgetit-project.eu
 *  
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package eu.forgetit.middleware.cmis;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;

import org.apache.chemistry.opencmis.client.api.CmisObject;
import org.apache.chemistry.opencmis.client.api.Document;
import org.apache.chemistry.opencmis.client.api.Session;
import org.apache.chemistry.opencmis.commons.data.ContentStream;
import org.apache.commons.io.FileUtils;

import eu.forgetit.middleware.persistence.PreservationEntity;

public abstract class CmisRepositoryManager {

    protected Session session = null;
    protected String cmisServerId = null;

    public final Session getSession() {
        return this.session;
    }

    public final void setSession(Session session) {
        this.session = session;
    }

    public final String getCmisServerId() {
        return cmisServerId;
    }

    public final void setCmisServerId(String cmisServerId) {
        this.cmisServerId = cmisServerId;
    }

    public abstract List<PreservationEntity> getObjectInformation(String cmisId);

    public abstract void fetchContentAndMetadata(String cmisId, Path destPath);

    public final Path getObjectStream(String cmisId, Path destPath, String fileName) throws IOException {

        Path streamPath = null;

        Document document = (Document) session.getObject(cmisId);

        ContentStream contentStream = document.getContentStream();

        if (contentStream != null) {

            if (fileName == null)
                fileName = contentStream.getFileName();

            streamPath = Paths.get(destPath.toString(), fileName);

            File streamFile = new File(streamPath.toString());

            InputStream inputStream = contentStream.getStream();

            FileUtils.copyInputStreamToFile(inputStream, streamFile);

        }

        return streamPath;

    };

    public final String getObjectProperty(String cmisId, String property) throws IOException {

        Document cmisObject = (Document) session.getObject(cmisId);

        return cmisObject.getPropertyValue(property);

    };

    public final String getObjectType(String cmisId) {

        CmisObject cmisObject = session.getObject(cmisId);

        return cmisObject.getType().getId();

    }

}