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Revision 50920

Added by Alessia Bardi about 6 years ago

using lambdas

View differences:

modules/dnet-parthenos-publisher/trunk/src/main/java/eu/dnetlib/parthenos/virtuoso/VirtuosoReadAPI.java
3 3 
import java.io.OutputStream;
4 4 
import java.util.Iterator;
5 5 
import java.util.List;
6 
import javax.annotation.Nullable;
7 6 

  		




  8
  
  
    
import com.google.common.base.Function;


  		




  9
  7
  
    
import com.google.common.collect.Iterators;


  		




  10
  8
  
    
import com.google.common.collect.Lists;


  		




  11
  9
  
    
import org.apache.commons.logging.Log;


  		




  12
  10
  
    
import org.apache.commons.logging.LogFactory;


  		




  13
  
  
    
import org.apache.jena.query.*;


  		




  
  11
  
    
import org.apache.jena.query.Query;


  		




  
  12
  
    
import org.apache.jena.query.QueryExecutionFactory;


  		




  
  13
  
    
import org.apache.jena.query.QueryFactory;


  		




  
  14
  
    
import org.apache.jena.query.ResultSet;


  		




  14
  15
  
    
import org.apache.jena.rdf.model.Model;


  		




  15
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import org.apache.jena.riot.RDFDataMgr;


  		




  16
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import org.apache.jena.riot.RDFFormat;


  		




  ......




  56
  57
  
    
		Query query = QueryFactory.create(queryForGraphs);


  		




  57
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		final QueryEngineHTTP serviceRequest = QueryExecutionFactory.createServiceRequest(sparqlUrl, query);


  		




  58
  59
  
    
		ResultSet graphs = serviceRequest.execSelect();


  		




  59
  
  
    
		Iterator<String> s = Iterators.transform(graphs, new Function<QuerySolution, String>() {


  		




  60
  
  
    
			@Nullable


  		




  61
  
  
    
			@Override


  		




  62
  
  
    
			public String apply(@Nullable final QuerySolution qs) {


  		




  63
  
  
    
				return qs.getResource("g").getURI();


  		




  64
  
  
    
			}


  		




  65
  
  
    
		});


  		




  
  60
  
    
		Iterator<String> s = Iterators.transform(graphs, qs -> qs.getResource("g").getURI());


  		




  66
  61
  
    
		List<String> res = Lists.newArrayList(s);


  		




  67
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		serviceRequest.close();


  		




  68
  63
  
    
		return res;


  		




  ......




  79
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		final QueryEngineHTTP serviceRequest =


  		




  80
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				QueryExecutionFactory.createServiceRequest(sparqlUrl, QueryFactory.create(q));


  		




  81
  76
  
    
		ResultSet subjects = serviceRequest.execSelect();


  		




  82
  
  
    
		Iterator<String> s = Iterators.transform(subjects, new Function<QuerySolution, String>() {


  		




  83
  
  
    
			@Nullable


  		




  84
  
  
    
			@Override


  		




  85
  
  
    
			public String apply(@Nullable final QuerySolution qs) {


  		




  86
  
  
    
				return qs.getResource("s").getURI();


  		




  87
  
  
    
			}


  		




  88
  
  
    
		});


  		




  
  77
  
    
		Iterator<String> s = Iterators.transform(subjects, qs -> qs.getResource("s").getURI());


  		




  89
  78
  
    
		List<String> res = Lists.newArrayList(s);


  		




  90
  79
  
    
		serviceRequest.close();


  		




  91
  80
  
    
		return res;


  		












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