/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.content.packager;
import java.io.IOException;
import java.io.InputStream;
import java.sql.SQLException;
import org.dspace.authorize.AuthorizeException;
import org.dspace.content.Bitstream;
import org.dspace.content.Collection;
import org.dspace.content.DSpaceObject;
import org.dspace.content.Item;
import org.dspace.content.crosswalk.CrosswalkException;
import org.dspace.content.crosswalk.MetadataValidationException;
import org.dspace.core.Context;
import org.dspace.core.Constants;
import org.dspace.core.PluginManager;
import org.dspace.app.mediafilter.MediaFilter;
import org.jdom.Element;
/**
* Packager plugin to ingest a
* METS (Metadata Encoding & Transmission Standard) package
* that conforms to the DSpace METS SIP (Submission Information Package) Profile.
* See <a href="http://www.loc.gov/standards/mets/">http://www.loc.gov/standards/mets/</a>
* for more information on METS, and
* <a href="http://www.dspace.org/standards/METS/SIP/profilev0p9p1/metssipv0p9p1.pdf">
* http://www.dspace.org/standards/METS/SIP/profilev0p9p1/metssipv0p9p1.pdf</a>
* (or a similar file in the /standards/METS/SIP resource hierarchy)
* for more information about the DSpace METS SIP profile.
*
* @author Larry Stone
* @author Tim Donohue
* @version $Revision$
* @see org.dspace.content.packager.METSManifest
* @see AbstractMETSIngester
* @see AbstractPackageIngester
* @see PackageIngester
*/
public class DSpaceMETSIngester
extends AbstractMETSIngester
{
// first part of required mets@PROFILE value
private static final String PROFILE_START = "DSpace METS SIP Profile";
// just check the profile name.
@Override
void checkManifest(METSManifest manifest)
throws MetadataValidationException
{
String profile = manifest.getProfile();
if (profile == null)
{
throw new MetadataValidationException("Cannot accept METS with no PROFILE attribute!");
}
else if (!profile.startsWith(PROFILE_START))
{
throw new MetadataValidationException("METS has unacceptable PROFILE value, profile=" + profile);
}
}
/**
* Choose DMD section(s) to crosswalk.
* <p>
* The algorithm is:<br>
* 1. Use whatever the <code>dmd</code> parameter specifies as the primary DMD.<br>
* 2. If (1) is unspecified, find MODS (preferably) or DC as primary DMD.<br>
* 3. If (1) or (2) succeeds, crosswalk it and ignore all other DMDs with
* same GROUPID<br>
* 4. Crosswalk remaining DMDs not eliminated already.
*/
@Override
public void crosswalkObjectDmd(Context context, DSpaceObject dso,
METSManifest manifest,
MdrefManager callback,
Element dmds[], PackageParameters params)
throws CrosswalkException, PackageValidationException,
AuthorizeException, SQLException, IOException
{
int found = -1;
// Check to see what dmdSec the user specified in the 'dmd' parameter
String userDmd = null;
if (params != null)
{
userDmd = params.getProperty("dmd");
}
if (userDmd != null && userDmd.length() > 0)
{
for (int i = 0; i < dmds.length; ++i)
{
if (userDmd.equalsIgnoreCase(manifest.getMdType(dmds[i])))
{
found = i;
}
}
}
// MODS is preferred, if nothing specified by user
if (found == -1)
{
for (int i = 0; i < dmds.length; ++i)
{
//NOTE: METS standard actually says this should be MODS (all uppercase). But,
// just in case, we're going to be a bit more forgiving.
if ("MODS".equalsIgnoreCase(manifest.getMdType(dmds[i])))
{
found = i;
}
}
}
// DC acceptable if no MODS
if (found == -1)
{
for (int i = 0; i < dmds.length; ++i)
{
//NOTE: METS standard actually says this should be DC (all uppercase). But,
// just in case, we're going to be a bit more forgiving.
if ("DC".equalsIgnoreCase(manifest.getMdType(dmds[i])))
{
found = i;
}
}
}
String groupID = null;
if (found >= 0)
{
manifest.crosswalkItemDmd(context, params, dso, dmds[found], callback);
groupID = dmds[found].getAttributeValue("GROUPID");
if (groupID != null)
{
for (int i = 0; i < dmds.length; ++i)
{
String g = dmds[i].getAttributeValue("GROUPID");
if (g != null && !g.equals(groupID))
{
manifest.crosswalkItemDmd(context, params, dso, dmds[i], callback);
}
}
}
}
else
{
// otherwise take the first. Don't xwalk more than one because
// each xwalk _adds_ metadata, and could add duplicate fields.
if (dmds.length > 0)
{
manifest.crosswalkItemDmd(context, params, dso, dmds[0], callback);
}
}
}
/**
* Policy: For DSpace deposit license, take deposit license
* supplied by explicit argument first, else use collection's
* default deposit license.
* For Creative Commons, look for a rightsMd containing a CC license.
*/
@Override
public void addLicense(Context context, Item item, String license,
Collection collection, PackageParameters params)
throws PackageValidationException,
AuthorizeException, SQLException, IOException
{
if (PackageUtils.findDepositLicense(context, item) == null)
{
PackageUtils.addDepositLicense(context, license, item, collection);
}
}
@Override
public void finishObject(Context context, DSpaceObject dso,
PackageParameters params)
throws PackageValidationException, CrosswalkException,
AuthorizeException, SQLException, IOException
{
// nothing to do.
}
@Override
public int getObjectType(METSManifest manifest)
throws PackageValidationException
{
return Constants.ITEM;
}
// return name of derived file as if MediaFilter created it, or null
// only needed when importing a SIP without canonical DSpace derived file naming.
private String makeDerivedFilename(String bundleName, String origName)
{
// get the MediaFilter that would create this bundle:
String mfNames[] = PluginManager.getAllPluginNames(MediaFilter.class);
for (int i = 0; i < mfNames.length; ++i)
{
MediaFilter mf = (MediaFilter)PluginManager.getNamedPlugin(MediaFilter.class, mfNames[i]);
if (bundleName.equals(mf.getBundleName()))
{
return mf.getFilteredName(origName);
}
}
return null;
}
/**
* Take a second pass over files to correct names of derived files
* (e.g. thumbnails, extracted text) to what DSpace expects:
*/
@Override
public void finishBitstream(Context context,
Bitstream bs,
Element mfile,
METSManifest manifest,
PackageParameters params)
throws MetadataValidationException, SQLException, AuthorizeException, IOException
{
String bundleName = METSManifest.getBundleName(mfile);
if (!bundleName.equals(Constants.CONTENT_BUNDLE_NAME))
{
String opath = manifest.getOriginalFilePath(mfile);
if (opath != null)
{
// String ofileId = origFile.getAttributeValue("ID");
// Bitstream obs = (Bitstream)fileIdToBitstream.get(ofileId);
String newName = makeDerivedFilename(bundleName, opath);
if (newName != null)
{
//String mfileId = mfile.getAttributeValue("ID");
//Bitstream bs = (Bitstream)fileIdToBitstream.get(mfileId);
bs.setName(newName);
bs.update();
}
}
}
}
@Override
public String getConfigurationName()
{
return "dspaceSIP";
}
public boolean probe(Context context, InputStream in, PackageParameters params)
{
throw new UnsupportedOperationException("PDF package ingester does not implement probe()");
}
/**
* Returns a user help string which should describe the
* additional valid command-line options that this packager
* implementation will accept when using the <code>-o</code> or
* <code>--option</code> flags with the Packager script.
*
* @return a string describing additional command-line options available
* with this packager
*/
@Override
public String getParameterHelp()
{
String parentHelp = super.getParameterHelp();
//Return superclass help info, plus the extra parameter/option that this class supports
return parentHelp +
"\n\n" +
"* dmd=[dmdSecType] " +
"Type of the METS <dmdSec> which should be used for primary item metadata (defaults to MODS, then DC)";
}
}