org.dspace.rdf

Class RDFConsumer

java.lang.Object

org.dspace.rdf.RDFConsumer

All Implemented Interfaces:

Consumer

public class RDFConsumer
extends Object
implements Consumer

Author:

Pascal-Nicolas Becker (dspace -at- pascal -hyphen- becker -dot- de)

Field Summary

Fields

Modifier and Type	Field and Description
protected BitstreamService	bitstreamService
protected BundleService	bundleService
protected SiteService	siteService
protected Deque<org.dspace.rdf.RDFConsumer.DSOIdentifier>	toConvert
protected Deque<org.dspace.rdf.RDFConsumer.DSOIdentifier>	toDelete
protected WorkflowItemService	workflowItemService
protected WorkspaceItemService	workspaceItemService

Constructor Summary

Constructors

Constructor and Description
RDFConsumer()

Method Summary

Methods

Modifier and Type	Method and Description
void	consume(Context ctx, Event event) Consume an event; events may get filtered at the dispatcher level, hiding it from the consumer.
void	consumeBitstream(Context ctx, Event event)
void	consumeBundles(Context ctx, Event event)
void	consumeCommunityCollectionItem(Context ctx, Event event)
void	consumeSite(Context ctx, Event event)
void	end(Context ctx) Signal that there are no more events queued in this event stream and event processing for the preceding consume calls should be finished up.
void	finish(Context ctx) Finish - free any allocated resources.
void	initialize() Initialize - allocate any resources required to operate.

Methods inherited from class java.lang.Object

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

Field Detail

toConvert

protected Deque<org.dspace.rdf.RDFConsumer.DSOIdentifier> toConvert

toDelete

protected Deque<org.dspace.rdf.RDFConsumer.DSOIdentifier> toDelete

bitstreamService

protected BitstreamService bitstreamService

bundleService

protected BundleService bundleService

siteService

protected SiteService siteService

workspaceItemService

protected WorkspaceItemService workspaceItemService

workflowItemService

protected WorkflowItemService workflowItemService

Constructor Detail

RDFConsumer

public RDFConsumer()

Method Detail

initialize

public void initialize()
                throws Exception

Description copied from interface: Consumer

Initialize - allocate any resources required to operate. This may include initializing any pooled JMS resources. Called ONCE when created by the dispatcher pool. This should be used to set up expensive resources that will remain for the lifetime of the consumer.

Specified by:

initialize in interface Consumer

Throws:

Exception

consume

public void consume(Context ctx,
           Event event)
             throws SQLException

Description copied from interface: Consumer

Consume an event; events may get filtered at the dispatcher level, hiding it from the consumer. This behavior is based on the dispatcher/consumer configuration. Should include logic to initialize any resources required for a batch of events.

Specified by:

consume in interface Consumer

Parameters:

ctx - the execution context object

event - the content event

Throws:

SQLException

consumeBitstream

public void consumeBitstream(Context ctx,
                    Event event)
                      throws SQLException

Throws:

SQLException

consumeBundles

public void consumeBundles(Context ctx,
                  Event event)
                    throws SQLException

Throws:

SQLException

consumeCommunityCollectionItem

public void consumeCommunityCollectionItem(Context ctx,
                                  Event event)
                                    throws SQLException

Throws:

SQLException

consumeSite

public void consumeSite(Context ctx,
               Event event)
                 throws SQLException

Throws:

SQLException

end

public void end(Context ctx)
         throws Exception

Description copied from interface: Consumer

Signal that there are no more events queued in this event stream and event processing for the preceding consume calls should be finished up.

Specified by:

end in interface Consumer

Throws:

Exception

finish

public void finish(Context ctx)
            throws Exception

Description copied from interface: Consumer

Finish - free any allocated resources. Called when consumer (via it's parent dispatcher) is going to be destroyed by the dispatcher pool.

Specified by:

finish in interface Consumer

Throws:

Exception