Package org.dspace.importer.external

Class MultipleParallelImportMetadataSourceServiceImpl

java.lang.Object

org.dspace.importer.external.MultipleParallelImportMetadataSourceServiceImpl

All Implemented Interfaces:

MetadataSource, QuerySource

public class MultipleParallelImportMetadataSourceServiceImpl
extends Object
implements QuerySource

Implements a data source for querying multiple external data sources in parallel optional Affiliation information are not part of the API request.

Author:

Johanna Staudinger (johanna.staudinger@uni-bamberg.de)

Constructor Summary

Constructors

Constructor	Description
MultipleParallelImportMetadataSourceServiceImpl(List<QuerySource> innerProviders, String sourceName)

Method Summary

Modifier and Type	Method	Description
Collection<ImportRecord>	findMatchingRecords(Item item)	Finds records based on an item Delegates to one or more MetadataSource implementations based on the uri.
Collection<ImportRecord>	findMatchingRecords(Query query)	Finds records based on query object.
String	getImportSource()	The string that identifies this import implementation.
ImportRecord	getRecord(String recordId)	Get a single record from the source.
ImportRecord	getRecord(Query query)	Get a single record from the source.
Collection<ImportRecord>	getRecords(String query, int start, int count)	Gets a set of records matching a query.
Collection<ImportRecord>	getRecords(Query query)	Find records based on a object query.
int	getRecordsCount(String query)	Gets the number of records matching a query
int	getRecordsCount(Query query)	Gets the number of records matching a query

Methods inherited from class java.lang.Object

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

Constructor Details

MultipleParallelImportMetadataSourceServiceImpl

public MultipleParallelImportMetadataSourceServiceImpl(List<QuerySource> innerProviders,
 String sourceName)

Method Details

getImportSource

public String getImportSource()

Description copied from interface: MetadataSource

The string that identifies this import implementation. Preferable a URI

Specified by:

getImportSource in interface MetadataSource

Returns:

the identifying uri

getRecord

public ImportRecord getRecord(String recordId)
                       throws MetadataSourceException

Description copied from interface: QuerySource

Get a single record from the source. The first match will be returned

Specified by:

getRecord in interface QuerySource

Parameters:

recordId - identifier for the record

Returns:

a matching record

Throws:

MetadataSourceException - if the underlying methods throw any exception.

getRecordsCount

public int getRecordsCount(String query)
                    throws MetadataSourceException

Description copied from interface: QuerySource

Gets the number of records matching a query

Specified by:

getRecordsCount in interface QuerySource

Parameters:

query - the query in string format

Returns:

the number of records matching the query

Throws:

MetadataSourceException - if the underlying methods throw any exception.

getRecordsCount

public int getRecordsCount(Query query)
                    throws MetadataSourceException

Description copied from interface: QuerySource

Gets the number of records matching a query

Specified by:

getRecordsCount in interface QuerySource

Parameters:

query - the query object

Returns:

the number of records matching the query

Throws:

MetadataSourceException - if the underlying methods throw any exception.

getRecords

public Collection<ImportRecord> getRecords(String query,
 int start,
 int count)
                                    throws MetadataSourceException

Description copied from interface: QuerySource

Gets a set of records matching a query. Supports pagination

Specified by:

getRecords in interface QuerySource

Parameters:

query - the query. The query will generally be posted 'as is' to the source

start - offset

count - page size

Returns:

a collection of fully transformed id's

Throws:

MetadataSourceException - if the underlying methods throw any exception.

getRecords

public Collection<ImportRecord> getRecords(Query query)
                                    throws MetadataSourceException

Description copied from interface: QuerySource

Find records based on a object query.

Specified by:

getRecords in interface QuerySource

Parameters:

query - a query object to base the search on.

Returns:

a set of records. Fully transformed.

Throws:

MetadataSourceException - if the underlying methods throw any exception.

getRecord

public ImportRecord getRecord(Query query)
                       throws MetadataSourceException

Description copied from interface: QuerySource

Get a single record from the source. The first match will be returned

Specified by:

getRecord in interface QuerySource

Parameters:

query - a query matching a single record

Returns:

a matching record

Throws:

MetadataSourceException - if the underlying methods throw any exception.

findMatchingRecords

public Collection<ImportRecord> findMatchingRecords(Query query)
                                             throws MetadataSourceException

Description copied from interface: QuerySource

Finds records based on query object. Delegates to one or more MetadataSource implementations based on the uri. Results will be aggregated.

Specified by:

findMatchingRecords in interface QuerySource

Parameters:

query - a query object to base the search on.

Returns:

a collection of import records. Only the identifier of the found records may be put in the record.

Throws:

MetadataSourceException - passed through.

findMatchingRecords

public Collection<ImportRecord> findMatchingRecords(Item item)
                                             throws MetadataSourceException

Description copied from interface: QuerySource

Finds records based on an item Delegates to one or more MetadataSource implementations based on the uri. Results will be aggregated.

Specified by:

findMatchingRecords in interface QuerySource

Parameters:

item - an item to base the search on

Returns:

a collection of import records. Only the identifier of the found records may be put in the record.

Throws:

MetadataSourceException - if the underlying methods throw any exception.