org.fao.geonet.kernel.harvest.harvester.webdav.WebDavRemoteFile.java Source code

Introduction

Here is the source code for org.fao.geonet.kernel.harvest.harvester.webdav.WebDavRemoteFile.java

Source

//=============================================================================
//===   Copyright (C) 2001-2007 Food and Agriculture Organization of the
//===   United Nations (FAO-UN), United Nations World Food Programme (WFP)
//===   and United Nations Environment Programme (UNEP)
//===
//===   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 2 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, write to the Free Software
//===   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
//===
//===   Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
//===   Rome - Italy. email: geonetwork@osgeo.org
//==============================================================================

package org.fao.geonet.kernel.harvest.harvester.webdav;

import jeeves.utils.Xml;
import org.apache.commons.httpclient.HttpException;
import org.apache.webdav.lib.WebdavResource;
import org.fao.geonet.kernel.SchemaManager;
import org.fao.geonet.util.ISODate;
import org.jdom.Element;

//=============================================================================

class WebDavRemoteFile implements RemoteFile {
    //---------------------------------------------------------------------------
    //---
    //--- Constructor
    //---
    //---------------------------------------------------------------------------

    public WebDavRemoteFile(WebdavResource wr) {
        this.wr = wr;
        path = wr.getPath();
        changeDate = new ISODate(wr.getGetLastModified()).toString();
    }

    //---------------------------------------------------------------------------
    //---
    //--- RemoteFile interface
    //---
    //---------------------------------------------------------------------------

    public String getPath() {
        return path;
    }

    public String getChangeDate() {
        return changeDate;
    }

    //---------------------------------------------------------------------------

    public Element getMetadata(SchemaManager schemaMan) throws Exception {
        try {
            wr.setPath(path);
            return Xml.loadStream(wr.getMethodData());
        } catch (HttpException x) {
            throw new Exception("HTTPException : " + x.getMessage());
        }
    }

    //---------------------------------------------------------------------------

    public boolean isMoreRecentThan(String localChangeDate) {
        ISODate remoteDate = new ISODate(changeDate);
        ISODate localDate = new ISODate(localChangeDate);
        //--- accept if remote date is greater than local date
        return (remoteDate.sub(localDate) > 0);
    }

    //---------------------------------------------------------------------------
    //---
    //--- Variables
    //---
    //---------------------------------------------------------------------------

    private String path;
    private String changeDate;

    private WebdavResource wr;
}

//=============================================================================