public class MODSDisseminationCrosswalk extends SelfNamedPlugin implements DisseminationCrosswalk
This class supports multiple dissemination crosswalks from DSpace internal data to the MODS XML format (see http://www.loc.gov/standards/mods/.)
It registers multiple Plugin names, which it reads from the DSpace configuration as follows:
"crosswalk.mods.properties." describes a
MODS crosswalk. Everything after the last period is the plugin name,
and the value is the pathname (relative to dspace.dir/config)
of the crosswalk configuration file.
You can have two names point to the same crosswalk, just add two configuration entries with the same value, e.g.
crosswalk.mods.properties.MODS = crosswalks/mods.properties
crosswalk.mods.properties.default = crosswalks/mods.properties
The first line creates a plugin with the name "MODS"
which is configured from the file dspace-dir/config/crosswalks/mods.properties.
Since there is significant overhead in reading the properties file to configure the crosswalk, and a crosswalk instance may be used any number of times, we recommend caching one instance of the crosswalk for each name and simply reusing those instances. The PluginService does this by default.
| Modifier and Type | Field and Description |
|---|---|
protected CollectionService |
collectionService |
protected CommunityService |
communityService |
protected ItemService |
itemService |
static org.jdom.Namespace |
MODS_NS
MODS namespace.
|
static String |
MODS_XSD
URL of MODS XML Schema
|
XSI_NS| Constructor and Description |
|---|
MODSDisseminationCrosswalk() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
canDisseminate(DSpaceObject dso)
ModsCrosswalk can disseminate: Items, Collections, Communities, and Site.
|
protected List<MockMetadataValue> |
collection2Metadata(Collection collection)
Generate a list of metadata elements for the given DSpace
collection.
|
protected List<MockMetadataValue> |
community2Metadata(Community community)
Generate a list of metadata elements for the given DSpace
community.
|
protected MockMetadataValue |
createDCValue(String element,
String qualifier,
String value) |
org.jdom.Element |
disseminateElement(Context context,
DSpaceObject dso)
Disseminate an Item, Collection, or Community to MODS.
|
List<org.jdom.Element> |
disseminateList(Context context,
DSpaceObject dso)
Returns object's metadata in MODS format, as List of XML structure nodes.
|
org.jdom.Namespace[] |
getNamespaces()
Return the MODS namespace
|
static String[] |
getPluginNames() |
String |
getSchemaLocation()
Return the MODS schema
|
protected List<MockMetadataValue> |
item2Metadata(Item item)
Generate a list of metadata elements for the given DSpace item.
|
boolean |
preferList()
ModsCrosswalk prefer's element form over list.
|
protected List<MockMetadataValue> |
site2Metadata(Site site)
Generate a list of metadata elements for the given DSpace
site.
|
getPluginInstanceName, setPluginInstanceNameprotected final CommunityService communityService
protected final CollectionService collectionService
protected final ItemService itemService
public static final org.jdom.Namespace MODS_NS
public static final String MODS_XSD
public static String[] getPluginNames()
public org.jdom.Namespace[] getNamespaces()
getNamespaces in interface DisseminationCrosswalkpublic String getSchemaLocation()
getSchemaLocation in interface DisseminationCrosswalkpublic List<org.jdom.Element> disseminateList(Context context, DSpaceObject dso) throws CrosswalkException, IOException, SQLException, AuthorizeException
disseminateList in interface DisseminationCrosswalkcontext - contextdso - the DSpace Object whose metadata to export.CrosswalkExceptionIOException - if IO errorSQLException - if database errorAuthorizeException - if authorization errorCrosswalkInternalException - (CrosswalkException) failure of the crosswalk itself.CrosswalkObjectNotSupported - (CrosswalkException) Cannot crosswalk this kind of DSpace object.public org.jdom.Element disseminateElement(Context context, DSpaceObject dso) throws CrosswalkException, IOException, SQLException, AuthorizeException
disseminateElement in interface DisseminationCrosswalkcontext - contextdso - the DSpace Object whose metadata to export.nullCrosswalkException - if crosswalk errorIOException - if IO errorSQLException - if database errorAuthorizeException - if authorization errorpublic boolean canDisseminate(DSpaceObject dso)
canDisseminate in interface DisseminationCrosswalkdso - dspace object, e.g. an Item.public boolean preferList()
preferList in interface DisseminationCrosswalkprotected List<MockMetadataValue> site2Metadata(Site site)
site - The site to derive metadata fromprotected List<MockMetadataValue> community2Metadata(Community community)
community - The community to derive metadata fromprotected List<MockMetadataValue> collection2Metadata(Collection collection)
collection - The collection to derive metadata fromprotected List<MockMetadataValue> item2Metadata(Item item)
item - The item to derive metadata fromprotected MockMetadataValue createDCValue(String element, String qualifier, String value)
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