Package org.dspace.content.packager

Class PDFPackager

java.lang.Object

org.dspace.core.SelfNamedPlugin

org.dspace.content.packager.PDFPackager

All Implemented Interfaces:

PackageDisseminator, PackageIngester, NameAwarePlugin

public class PDFPackager
extends SelfNamedPlugin
implements PackageIngester, PackageDisseminator

Accept a PDF file by itself as a SIP.

This is mainly a proof-of-concept to demonstrate the flexibility of the packager and crosswalk plugins.

To import, open up the PDF and try to extract sufficient metadata from its InfoDict.

Export is a crude hack: if the item has a bitstream containing PDF, send that, otherwise it fails. Do not attempt to insert metadata.

Version:

$Revision$

Author:

Larry Stone

See Also:

• PackageIngester
• PackageDisseminator

Field Summary

Fields

Modifier and Type	Field	Description
protected static String[]	aliases
protected static final String	BITSTREAM_FORMAT_NAME
protected final BitstreamFormatService	bitstreamFormatService
protected final BitstreamService	bitstreamService
protected final BundleService	bundleService
protected final ItemService	itemService
protected final WorkspaceItemService	workspaceItemService

Constructor Summary

Constructors

Constructor	Description
PDFPackager()

Method Summary

Modifier and Type	Method	Description
void	disseminate(Context context, DSpaceObject dso, PackageParameters params, File pkgFile)	VERY crude dissemination: just look for the first bitstream with the PDF package type, and toss it out.
List<File>	disseminateAll(Context context, DSpaceObject dso, PackageParameters params, File pkgFile)	disseminateAll() cannot be implemented for a PDF disseminator, because there's only one PDF to disseminate
String	getMIMEType(PackageParameters params)	Identifies the MIME-type of this package, i.e.
String	getParameterHelp()	Returns a user help string which should describe the additional valid command-line options that this packager implementation will accept when using the -o or --option flags with the Packager script.
static String[]	getPluginNames()
DSpaceObject	ingest(Context context, DSpaceObject parent, File pkgFile, PackageParameters params, String license)	Create new Item out of the ingested package, in the indicated collection.
List<String>	ingestAll(Context context, DSpaceObject parent, File pkgFile, PackageParameters params, String license)	IngestAll() cannot be implemented for a PDF ingester, because there's only one PDF to ingest
DSpaceObject	replace(Context context, DSpaceObject dso, File pkgFile, PackageParameters params)	Replace is not implemented.
List<String>	replaceAll(Context context, DSpaceObject dso, File pkgFile, PackageParameters params)	ReplaceAll() cannot be implemented for a PDF ingester, because there's only one PDF to ingest
protected void	setFormatToMIMEType(Context context, Bitstream bs, String mimeType)

Methods inherited from class org.dspace.core.SelfNamedPlugin

getPluginInstanceName, setPluginInstanceName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

BITSTREAM_FORMAT_NAME

protected static final String BITSTREAM_FORMAT_NAME

See Also:

• Constant Field Values

aliases

protected static String[] aliases

bitstreamService

protected final BitstreamService bitstreamService

bundleService

protected final BundleService bundleService

bitstreamFormatService

protected final BitstreamFormatService bitstreamFormatService

itemService

protected final ItemService itemService

workspaceItemService

protected final WorkspaceItemService workspaceItemService

Constructor Details

PDFPackager

public PDFPackager()

Method Details

getPluginNames

public static String[] getPluginNames()

setFormatToMIMEType

protected void setFormatToMIMEType(Context context,
 Bitstream bs,
 String mimeType)
                            throws SQLException

Throws:

SQLException

ingest

public DSpaceObject ingest(Context context,
 DSpaceObject parent,
 File pkgFile,
 PackageParameters params,
 String license)
                    throws PackageValidationException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException,
WorkflowException

Create new Item out of the ingested package, in the indicated collection. It creates a workspace item, which the application can then install if it chooses to bypass Workflow.

This is a VERY crude import of a single Adobe PDF (Portable Document Format) file, using the document's embedded metadata for package metadata. If the PDF file hasn't got the minimal metadata available, it is rejected.

Specified by:

ingest in interface PackageIngester

Parameters:

context - DSpace context.

parent - collection under which to create new item.

pkgFile - The package file to ingest

params - package parameters (none recognized)

license - may be null, which takes default license.

Returns:

workspace item created by ingest.

Throws:

PackageValidationException - if package invalid

CrosswalkException - if crosswalking fails

AuthorizeException - if authorization error

SQLException - if database error

IOException - if IO error

WorkflowException - if workflow error

ingestAll

public List<String> ingestAll(Context context,
 DSpaceObject parent,
 File pkgFile,
 PackageParameters params,
 String license)
                       throws PackageException,
UnsupportedOperationException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException

IngestAll() cannot be implemented for a PDF ingester, because there's only one PDF to ingest

Specified by:

ingestAll in interface PackageIngester

Parameters:

context - DSpace context.

parent - parent under which to create the initial object (may be null -- in which case ingester must determine parent from package or throw an error).

pkgFile - The initial package file to ingest

params - Properties-style list of options (interpreted by each packager).

license - may be null, which takes default license.

Returns:

List of Identifiers of DSpaceObjects created

Throws:

UnsupportedOperationException - if unsupported operation

PackageException - if package error

IOException - if IO error

SQLException - if database error

AuthorizeException - if authorization error

CrosswalkException - if crosswalk error

replace

public DSpaceObject replace(Context context,
 DSpaceObject dso,
 File pkgFile,
 PackageParameters params)
                     throws PackageException,
UnsupportedOperationException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException

Replace is not implemented.

Specified by:

replace in interface PackageIngester

Parameters:

context - DSpace context.

dso - existing DSpace Object to be replaced, may be null if object to replace can be determined from package

pkgFile - The package file to ingest.

params - Properties-style list of options specific to this packager

Returns:

DSpaceObject with contents replaced

Throws:

UnsupportedOperationException - if unsupported operation

PackageException - if package error

IOException - if IO error

SQLException - if database error

AuthorizeException - if authorization error

CrosswalkException - if crosswalk error

replaceAll

public List<String> replaceAll(Context context,
 DSpaceObject dso,
 File pkgFile,
 PackageParameters params)
                        throws PackageException,
UnsupportedOperationException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException

ReplaceAll() cannot be implemented for a PDF ingester, because there's only one PDF to ingest

Specified by:

replaceAll in interface PackageIngester

Parameters:

context - DSpace context.

dso - initial existing DSpace Object to be replaced, may be null if object to replace can be determined from package

pkgFile - The package file to ingest.

params - Properties-style list of options specific to this packager

Returns:

List of Identifiers of DSpaceObjects replaced

Throws:

UnsupportedOperationException - if unsupported operation

PackageException - if package error

IOException - if IO error

SQLException - if database error

AuthorizeException - if authorization error

CrosswalkException - if crosswalk error

disseminate

public void disseminate(Context context,
 DSpaceObject dso,
 PackageParameters params,
 File pkgFile)
                 throws PackageValidationException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException

VERY crude dissemination: just look for the first bitstream with the PDF package type, and toss it out. Works on packages importer with this packager, and maybe some others.

Specified by:

disseminate in interface PackageDisseminator

Parameters:

dso - DSpaceObject

context - DSpace context.

params - Properties-style list of options specific to this packager

pkgFile - File where export package should be written

Throws:

CrosswalkException - if crosswalk error

AuthorizeException - if authorization error

SQLException - if database error

IOException - if IO error

PackageValidationException - if package cannot be created or there is a fatal error in creating it.

disseminateAll

public List<File> disseminateAll(Context context,
 DSpaceObject dso,
 PackageParameters params,
 File pkgFile)
                          throws PackageException,
CrosswalkException,
AuthorizeException,
SQLException,
IOException

disseminateAll() cannot be implemented for a PDF disseminator, because there's only one PDF to disseminate

Specified by:

disseminateAll in interface PackageDisseminator

Parameters:

context - DSpace context.

dso - initial DSpace object

params - Properties-style list of options specific to this packager

pkgFile - File where initial package should be written. All other packages will be written to the same directory as this File.

Returns:

List of all package Files which were successfully disseminated

Throws:

PackageException - if package error

CrosswalkException - if crosswalk error

AuthorizeException - if authorization error

SQLException - if database error

IOException - if IO error

getMIMEType

public String getMIMEType(PackageParameters params)

Identifies the MIME-type of this package, i.e. "application/pdf".

Specified by:

getMIMEType in interface PackageDisseminator

Parameters:

params - package params

Returns:

the MIME type (content-type header) of the package to be returned

getParameterHelp

public String getParameterHelp()

Returns a user help string which should describe the additional valid command-line options that this packager implementation will accept when using the -o or --option flags with the Packager script.

Specified by:

getParameterHelp in interface PackageDisseminator

Specified by:

getParameterHelp in interface PackageIngester

Returns:

a string describing additional command-line options available with this packager