org.eaglei.search.provider.rdf
Class RepositoryHarvester

java.lang.Object
  org.eaglei.search.provider.rdf.AbstractRDFProvider
      org.eaglei.search.provider.rdf.RepositoryHarvester

All Implemented Interfaces:

org.eaglei.search.provider.SearchProvider

public final class RepositoryHarvester
extends AbstractRDFProvider

Extension of AbstractRDFProvider that uses the Repository /harvest API (see /harvest REST API spec for details).

• The results from the harvest call (returned in SPARQL tabular format) are parsed into a set of SPARQL QuerySolutions.
• The QuerySolutions are used to create a set of SearchResults (one search result for each unique subject URI).
• The SearchResults are gathered together into a SearchResultSet.

Author:

frost

Field Summary

Fields inherited from class org.eaglei.search.provider.rdf.AbstractRDFProvider

eagleiOntModel, institution, prefLabelProperties, repoClient

Constructor Summary

RepositoryHarvester(org.eaglei.model.EIOntModel eagleiOntModel, org.eaglei.model.EIEntity institution, org.eaglei.services.repository.RepositoryHttpClient repoClient)
Creates a new RepositoryHarvester.

Method Summary

org.eaglei.search.provider.SearchCounts	count(org.eaglei.search.provider.SearchCountRequest request)
protected com.hp.hpl.jena.query.QueryExecution	getQueryExecution(com.hp.hpl.jena.query.Query query) Gets an ARQ QueryExecution for the Query.
void	init()
org.eaglei.search.provider.SearchResultSet	query(org.eaglei.search.provider.SearchRequest request)

Methods inherited from class org.eaglei.search.provider.rdf.AbstractRDFProvider

createSearchResultFromModel, createSearchResultSet, createSPARQLString, getSearchResultsFromSPARQLResults

Methods inherited from class java.lang.Object

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

Constructor Detail

RepositoryHarvester

public RepositoryHarvester(org.eaglei.model.EIOntModel eagleiOntModel,
                           org.eaglei.model.EIEntity institution,
                           org.eaglei.services.repository.RepositoryHttpClient repoClient)

Creates a new RepositoryHarvester.

Parameters:

eagleiOntModel - Handle to the in-memory representation of the eagle-i ontology.

institution - Handle to the institution.

repoClient - Configuration of the repository.

Method Detail

init

public void init()
          throws java.io.IOException

Specified by:

init in interface org.eaglei.search.provider.SearchProvider

Overrides:

init in class AbstractRDFProvider

Throws:

java.io.IOException

count

public org.eaglei.search.provider.SearchCounts count(org.eaglei.search.provider.SearchCountRequest request)
                                              throws java.io.IOException

Specified by:

count in interface org.eaglei.search.provider.SearchProvider

Overrides:

count in class AbstractRDFProvider

Throws:

java.io.IOException

getQueryExecution

protected com.hp.hpl.jena.query.QueryExecution getQueryExecution(com.hp.hpl.jena.query.Query query)

Description copied from class: AbstractRDFProvider

Gets an ARQ QueryExecution for the Query.

Specified by:

getQueryExecution in class AbstractRDFProvider

Parameters:

query - Query

Returns:

QueryExecution

query

public org.eaglei.search.provider.SearchResultSet query(org.eaglei.search.provider.SearchRequest request)
                                                 throws java.io.IOException

Specified by:

query in interface org.eaglei.search.provider.SearchProvider

Overrides:

query in class AbstractRDFProvider

Throws:

java.io.IOException