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

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

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/*
  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 org.apache.commons.lang.NotImplementedException;

import de.uzk.hki.da.action.AbstractAction;
import de.uzk.hki.da.grid.GridFacade;
import de.uzk.hki.da.model.StoragePolicy;
import de.uzk.hki.da.util.ConfigurationException;
import de.uzk.hki.da.utils.Path;

/**
 * Does the decoupled and time based Archive Replication to the given minimum number of required nodes. 
 * @author Jens Peters
 */
public class ArchiveReplicationAction extends AbstractAction {

    public ArchiveReplicationAction() {
        SUPPRESS_OBJECT_CONSISTENCY_CHECK = true;
    }

    private GridFacade gridRoot;

    private int timeOut = 4000;

    @Override
    public void checkConfiguration() {
        if (gridRoot == null)
            throw new ConfigurationException("gridRoot");
    }

    @Override
    public void checkPreconditions() {
    }

    @Override
    public boolean implementation() {

        String filename = o.getIdentifier() + ".pack_" + o.getLatestPackage().getName() + ".tar";
        Path target = Path.make(o.getContractor().getShort_name(), o.getIdentifier(), filename);
        StoragePolicy sp = new StoragePolicy();
        sp.setGridCacheAreaRootPath(n.getGridCacheAreaRootPath().toString());
        sp.setMinNodes(preservationSystem.getMinRepls());
        sp.setForbiddenNodes(o.getContractor().getForbidden_nodes());
        sp.setReplDestinations(n.getReplDestinations());
        sp.setAdminEmail(n.getAdmin().getEmailAddress());
        sp.setMailsPooled(n.getAdmin().isMailsPooled());
        sp.setNodeName(n.getName());
        sp.setCommonStorageRescName(n.getReplDestinations());
        sp.setWorkingResource(n.getWorkingResource());
        Path aipFilePath = Path.make(n.getWorkAreaRootPath(), "work", o.getContractor().getShort_name(), filename);
        // node get identifier is the zone name
        Path replFilePath = Path.make(n.getIdentifier(), "repl", o.getContractor().getShort_name(), filename);

        try {

            if (!gridRoot.put(new File(aipFilePath.toString()), target.toString(), sp,
                    o.getLatestPackage().getChecksum())) {
                delay();
                return false;
            }

            if (!gridRoot.putToReplDir(new File(aipFilePath.toString()), replFilePath.toString(), sp,
                    o.getLatestPackage().getChecksum())) {
                delay();
                return false;
            }

            gridRoot.distribute(n, replFilePath.toFile(), target.toString(), sp);

            new File(aipFilePath.toString()).delete();
        } catch (IOException e) {
            throw new RuntimeException("Put to IRODS Datagrid failed! " + e.getMessage());
        }
        return true;
    }

    private void delay() {
        try {
            Thread.sleep(timeOut); // to prevent unnecessary small intervals when checking
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

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

    public GridFacade getGridRoot() {
        return gridRoot;
    }

    public void setGridRoot(GridFacade gridRoot) {
        this.gridRoot = gridRoot;
    }

}