org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl
Class MCollectionDataSource

java.lang.Object
  org.gcube.datatransformation.datatransformationlibrary.datahandlers.impl.MCollectionDataSource

All Implemented Interfaces:

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

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

Author:

Dimitris Katris, NKUA

This DataSource fetches DataElements from a metadata collection.

Constructor Summary

MCollectionDataSource(String input, org.gcube.datatransformation.datatransformationlibrary.model.Parameter[] inputParameters)

Method Summary

void	close()
protected static String	getContent(org.gcube.contentmanagement.gcubemodellibrary.elements.GCubeMetadata metadata, org.gcube.common.core.scope.GCUBEScope scope)
boolean	hasNext()
boolean	isClosed()
org.gcube.datatransformation.datatransformationlibrary.dataelements.DataElement	next()
org.gcube.datatransformation.datatransformationlibrary.model.ContentType	nextContentType()
String	streamToString(InputStream in)

Methods inherited from class java.lang.Object

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

Constructor Detail

MCollectionDataSource

public MCollectionDataSource(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. getElementsRS is the only parameter identified.

Throws:

Exception - If the MCollectionDataSource could not be initialized.

Method Detail

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

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()

streamToString

public String streamToString(InputStream in)
                      throws IOException

Throws:

IOException

getContent

protected static String getContent(org.gcube.contentmanagement.gcubemodellibrary.elements.GCubeMetadata metadata,
                                   org.gcube.common.core.scope.GCUBEScope scope)
                            throws Exception

Throws:

Exception

nextContentType

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

Specified by:

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