de.uzk.hki.da.cb.RestartIngestWorkflowAction.java Source code

Introduction

Here is the source code for de.uzk.hki.da.cb.RestartIngestWorkflowAction.java

Source

/*
  DA-NRW Software Suite | ContentBroker
  Copyright (C) 2013 Historisch-Kulturwissenschaftliche Informationsverarbeitung
  Universitt zu Kln
    
  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 de.uzk.hki.da.cb;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.NotImplementedException;

import de.uzk.hki.da.action.AbstractAction;
import de.uzk.hki.da.core.C;
import de.uzk.hki.da.core.ConfigurationException;
import de.uzk.hki.da.core.Path;

/**
 * Resets job in ingest workflow back to 120.
 * Suited to reset jobs from between 12x and 36x.
 * 
 * @author Thomas Kleinke
 * @author Daniel M. de Oliveira
 */
public class RestartIngestWorkflowAction extends AbstractAction {

    public RestartIngestWorkflowAction() {
        SUPPRESS_OBJECT_CONSISTENCY_CHECK = true;
    }

    @Override
    public void checkActionSpecificConfiguration() throws ConfigurationException {
        // Auto-generated method stub
    }

    @Override
    public void checkSystemStatePreconditions() throws IllegalStateException {
        // Auto-generated method stub
    }

    @Override
    public boolean implementation() throws IOException {

        if (!object.isDelta())
            object.setUrn(null);

        revertDataFolderToSIPContent();

        deletePIPS();

        object.getLatestPackage().getEvents().clear();
        object.getLatestPackage().getFiles().clear();
        job.getConversion_instructions().clear();

        return true;
    }

    @Override
    public void rollback() throws Exception {
        throw new NotImplementedException("No rollback implemented for this action");
    }

    /**
     * Leaves only the representation with the SIP content. 
     *
     * @author Daniel M. de Oliveira
     * @throws IOException 
     */
    private void revertDataFolderToSIPContent() throws IOException {

        List<String> filesC = Arrays.asList(object.getDataPath().toFile().list());
        Collections.sort(filesC, Collections.reverseOrder());
        String newestRep = filesC.iterator().next();
        if (newestRep.endsWith("+b")) {
            FileUtils.deleteDirectory(Path.makeFile(object.getDataPath(), newestRep));
            newestRep = newestRep.replace("+b", "+a");
        }

        File sipContent = Path.makeFile(object.getDataPath(), newestRep);
        File sipTemp = Path.makeFile(object.getPath(), "___sipContent");

        FileUtils.moveDirectory(sipContent, sipTemp);
        FileUtils.deleteDirectory(object.getDataPath().toFile());
        FileUtils.moveDirectory(sipTemp, object.getDataPath().toFile());
    }

    /**
     * 
     * Deletes previously created dips
     * 
     * @author Thomas Kleinke
     * @throws IOException 
     */
    private void deletePIPS() throws IOException {
        File publicDipFolder = Path.makeFile(localNode.getWorkAreaRootPath(), C.WA_PIPS, C.WA_PUBLIC,
                object.getContractor().getShort_name(),
                object.getIdentifier() + "_" + object.getLatestPackage().getId());
        File institutionDipFolder = Path.makeFile(localNode.getWorkAreaRootPath(), C.WA_PIPS, C.WA_INSTITUTION,
                object.getContractor().getShort_name(),
                object.getIdentifier() + "_" + object.getLatestPackage().getId());

        if (publicDipFolder.exists())
            FileUtils.deleteDirectory(publicDipFolder);
        if (institutionDipFolder.exists())
            FileUtils.deleteDirectory(institutionDipFolder);
    }
}