Package net.ontopia.topicmaps.utils.rdf

Class RDFImporterExporterService

java.lang.Object

net.ontopia.topicmaps.utils.rdf.RDFImporterExporterService

All Implemented Interfaces:

ImportExportServiceIF

public class RDFImporterExporterService
extends Object
implements ImportExportServiceIF

ImportExportServiceIF service providing RDF import and export functionality.

Since:

5.4.0

Constructor Summary

Constructors

Constructor	Description
RDFImporterExporterService()

Method Summary

Modifier and Type	Method	Description
boolean	canRead(URL resource)	PUBLIC: Indicates that the service can supply a TopicMapReaderIF implementation for the specified resource.
boolean	canWrite(URL resource)	PUBLIC: Indicates that the service can supply a TopicMapWriterIF implementation for the specified resource.
AbstractURLTopicMapReference	createReference(URL url, String refid, String title, LocatorIF base_address)	PUBLIC: Creates an AbstractURLTopicMapReference for the specified url, using the appropriate reader and/or writer provided by this service.
TopicMapReaderIF	getReader(URL resource)	PUBLIC: Create and return a TopicMapReaderIF for the specified resource.
TopicMapWriterIF	getWriter(OutputStream stream)	PUBLIC: Create and return a TopicMapWriterIF for the specified stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

RDFImporterExporterService

public RDFImporterExporterService()

Method Detail

canRead

public boolean canRead(URL resource)

Description copied from interface: ImportExportServiceIF

PUBLIC: Indicates that the service can supply a TopicMapReaderIF implementation for the specified resource.

Specified by:

canRead in interface ImportExportServiceIF

Parameters:

resource - The resource a reader is needed for

Returns:

true if this service can provide the needed reader

canWrite

public boolean canWrite(URL resource)

Description copied from interface: ImportExportServiceIF

PUBLIC: Indicates that the service can supply a TopicMapWriterIF implementation for the specified resource.

Specified by:

canWrite in interface ImportExportServiceIF

Parameters:

resource - The resource a writer is needed for

Returns:

true if this service can provide the needed writer

getWriter

public TopicMapWriterIF getWriter(OutputStream stream)
                           throws IOException

Description copied from interface: ImportExportServiceIF

PUBLIC: Create and return a TopicMapWriterIF for the specified stream. This method should be preceded with a call to #canWrite(java.lang.String) to check if this service can write to the resource which the stream is connected to.

Specified by:

getWriter in interface ImportExportServiceIF

Parameters:

stream - The stream to write to

Returns:

The TopicMapWriterIF created by this service

Throws:

IOException - if anything goes wrong during initialization of the writer regarding IO operations

getReader

public TopicMapReaderIF getReader(URL resource)

Description copied from interface: ImportExportServiceIF

PUBLIC: Create and return a TopicMapReaderIF for the specified resource. This method should be preceded with a call to #canRead(java.lang.String) to check if this service can read the specified resource.

Specified by:

getReader in interface ImportExportServiceIF

Parameters:

resource - The resource to create a reader for

Returns:

The TopicMapReaderIF created by this service

createReference

public AbstractURLTopicMapReference createReference(URL url,
                                                    String refid,
                                                    String title,
                                                    LocatorIF base_address)

Description copied from interface: ImportExportServiceIF

PUBLIC: Creates an AbstractURLTopicMapReference for the specified url, using the appropriate reader and/or writer provided by this service. This method is used by the sources like URLTopicMapSource and ResourceTopicMapSource.

Specified by:

createReference in interface ImportExportServiceIF

Parameters:

url - The resource to create the reference for

refid - The id to use for the reference

title - The title to use for the reference

base_address - The base address to use if supported

Returns:

the reference for the specified resource