org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl

Class URIListDataSource

java.lang.Object

org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl.URIListDataSource

All Implemented Interfaces:

org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource

public class URIListDataSource
extends Object
implements org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource, org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource

Author:

Dimitris Katris, NKUA

This DataSource fetches DataElements from a file containing urls.

Constructor Summary

Constructors

Constructor and Description
URIListDataSource()
URIListDataSource(String input, org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement	getDataElement(String dataElementID)
String	getNextDataElementID()
boolean	hasNext()
void	initializeDistributableDataSource(String input, org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)
boolean	isClosed()
static void	main(String[] args) Tests URIListDataSource.
org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement	next()
org.gcube.datatransformation.datatransformationlibrary.model.ContentType	nextContentType()

Methods inherited from class java.lang.Object

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

Constructor Detail

URIListDataSource

public URIListDataSource(String input,
                 org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)
                  throws Exception

Parameters:

input - The input value of the DataSource.

inputParameters - The input parameters of the DataSource.

Throws:

Exception - If the DataSource could not be initialized.

URIListDataSource

public URIListDataSource()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Tests URIListDataSource.

Parameters:

args - nothing

Throws:

Exception - If data source could not be initialized.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource

Specified by:

hasNext in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource

Specified by:

hasNext in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource

Returns:

true if the DataSource has more elements.

See Also:

DataSource.hasNext()

next

public org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement next()

Specified by:

next in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataSource

Returns:

the next element of the DataSource.

See Also:

DataSource.next()

close

public void close()

Specified by:

close in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler

See Also:

DataHandler.close()

isClosed

public boolean isClosed()

Specified by:

isClosed in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DataHandler

Returns:

true if the DataHandler has been closed.

See Also:

DataHandler.isClosed()

getDataElement

public org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement getDataElement(String dataElementID)
                                                                                               throws Exception

Specified by:

getDataElement in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource

Parameters:

dataElementID - The id of the DataElement.

Returns:

The DataElement instance.

Throws:

Exception - If an error occurred in getting the DataElement.

See Also:

DistributableDataSource.getDataElement(java.lang.String)

getNextDataElementID

public String getNextDataElementID()
                            throws Exception

Specified by:

getNextDataElementID in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource

Returns:

The next data element id.

Throws:

Exception - If the DistributableDataSource did not manage to get another data element id.

See Also:

DistributableDataSource.getNextDataElementID()

initializeDistributableDataSource

public void initializeDistributableDataSource(String input,
                                     org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)
                                       throws Exception

Specified by:

initializeDistributableDataSource in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.DistributableDataSource

Parameters:

input - The input of the DistributableDataSource

inputParameters - Any input parameters required by the DistributableDataSource.

Throws:

Exception - If the DistributableDataSource could not be initialized.

See Also:

DistributableDataSource.initializeDistributableDataSource(java.lang.String, org.gcube.datatransformation.datatransformationlibrary.model.Parameter[])

nextContentType

public org.gcube.datatransformation.datatransformationlibrary.model.ContentType nextContentType()

Specified by:

nextContentType in interface org.gcube.datatransformation.datatransformationlibrary.datahandlers.ContentTypeDataSource