Package org.apache.jena.larq

Examples of org.apache.jena.larq.IndexLARQ

83
84
85
86
87
88
89
90
        // ---- Finish indexing
        larqBuilder.closeWriter() ;
        model.unregister(larqBuilder) ;
       
        // ---- Create the access index 
        IndexLARQ index = larqBuilder.getIndex() ;
        return index ;
    }
View Full Code Here
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
        System.out.println("ARQ Example: "+Utils.classShortName(ExLucene2.class)) ;
        System.out.println("ARQ: "+ARQ.VERSION) ;
        System.out.println() ;
       
        Model model = ModelFactory.createDefaultModel() ;
        IndexLARQ index = ExLucene1.buildIndex(model,  "src/test/resources/LARQ/data-1.ttl") ;
       
        // Search for string
        String searchString = "+document" ;
       
        // This time, find documents with a matching DC title.
        String queryString = StrUtils.strjoin("\n",
            "PREFIX pf:     <http://jena.hpl.hp.com/ARQ/property#>",
            "PREFIX xsd:    <http://www.w3.org/2001/XMLSchema#>" ,
            "PREFIX dc:     <http://purl.org/dc/elements/1.1/>",
            "PREFIX :       <http://example/>" ,
            "SELECT ?doc ?title {" ,
            "    ?title pf:textMatch '"+searchString+"'.",
            "    ?doc   dc:title ?title",
            "}") ;
       
        // Two of three documents should match.
        ExLucene1.performQuery(model, index, queryString) ;
        index.close() ;
    }
View Full Code Here
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
        System.out.println("ARQ Example: "+Utils.classShortName(ExLucene4.class)) ;
        System.out.println("ARQ: "+ARQ.VERSION) ;
        System.out.println() ;
       
        Model model = ModelFactory.createDefaultModel() ;
        IndexLARQ index = buildSubjectTitleIndex(model,  "src/test/resources/LARQ/data-1.ttl") ;
       
        // Search for string
        String searchString = "+document" ;
       
        // This time, find documents with a matching DC title.
        String queryString = StrUtils.strjoin("\n",
            "PREFIX pf:     <http://jena.hpl.hp.com/ARQ/property#>",
            "PREFIX xsd:    <http://www.w3.org/2001/XMLSchema#>" ,
            "PREFIX dc:     <http://purl.org/dc/elements/1.1/>",
            "PREFIX :       <http://example/>" ,
            "SELECT ?doc {" ,
            "    ?doc pf:textMatch '"+searchString+"'.",
            "}") ;
       
        // Two of three documents should match.
        ExLucene1.performQuery(model, index, queryString) ;
        index.close() ;
    }
View Full Code Here
83
84
85
86
87
88
89
90
        // ---- Finish indexing
        larqBuilder.closeWriter() ;
        model.unregister(larqBuilder) ;
       
        // ---- Create the access index 
        IndexLARQ index = larqBuilder.getIndex() ;
        return index ;
    }
View Full Code Here
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
        System.out.println("ARQ: "+ARQ.VERSION) ;
        System.out.println() ;
       
        Model model = ModelFactory.createDefaultModel() ;

        IndexLARQ index = buildIndexExternalContent(model) ;
       
        // Search for string
        String searchString = "+document" ;
       
        // This time, find documents with a matching DC title.
        String queryString = StrUtils.strjoin("\n",
            "PREFIX pf:     <http://jena.hpl.hp.com/ARQ/property#>",
            "SELECT ?doc {" ,
            "    ?doc pf:textMatch '"+searchString+"'.",
            "}") ;
       
        // Two of three docuemnts should match.
        ExLucene1.performQuery(model, index, queryString) ;
        index.close() ;
    }
View Full Code Here
86
87
88
89
90
91
92
93
94
95
96
        // Note that the model is untouched - the index exists outside of any model statements.
        // The application is responsible for keeping
        // ----
       
        larqBuilder.closeWriter() ;
        IndexLARQ index = larqBuilder.getIndex() ;
       
//        NodeIterator iter = index.searchModelByIndex(model, "document") ;
//        for ( ; iter.hasNext() ; )
//            System.out.println("Found: "+FmtUtils.stringForRDFNode((RDFNode)iter.next())) ;
       
View Full Code Here
57
58
59
60
61
62
63
64
65
    public IndexLARQ getIndexLARQ()
    {
        try {
            FSDirectory dir = FSDirectory.open(luceneDir);
            IndexReader indexReader = IndexReader.open(dir) ;
            return new IndexLARQ(indexReader) ;
        } catch (Exception ex)
        { throw new ARQLuceneException("LARQ", ex) ; }
    }
View Full Code Here
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
            directory = FSDirectory.open(path);
        } else {
            directory = new RAMDirectory();
        }
        IndexReader indexReader = null;
        IndexLARQ indexLARQ = null;
        if ( dataset != null )
        {
            try
            {
                IndexWriter indexWriter = IndexWriterFactory.create(directory);
                IndexBuilderModel larqBuilder = new IndexBuilderString(indexWriter) ;
                dataset.getDefaultModel().register(larqBuilder);
                for ( Iterator<String> iter = dataset.listNames() ; iter.hasNext() ; ) {
                    String g = iter.next() ;
                    dataset.getNamedModel(g).register(larqBuilder) ;
                }
                indexLARQ = new IndexLARQ(indexWriter) ;
            } catch (LockObtainFailedException e) {
                log.warn("Someone else has a lock on the Lucene index, falling back to read-only mode.");
            }
        }
       
        if ( indexLARQ == null )
        {
            indexReader = IndexReader.open(directory) ; // read-only
            indexLARQ = new IndexLARQ(indexReader) ;
        }

        LARQ.setDefaultIndex(indexLARQ) ;
        return indexLARQ ;
    }
View Full Code Here
TOP

Related Classes of org.apache.jena.larq.IndexLARQ

  • com.hp.hpl.jena.rdf.model.impl.NodeIteratorImpl
  • com.hp.hpl.jena.rdf.model.NodeIterator
  • dev.Report_LARQ_Concurrent
  • dev.Report_LARQ_Dataset
  • dev.Run_Assembler
  • larq.cmdline.ModLARQindex
  • larq.larq
  • org.apache.jena.examples.ExampleLARQ_01
  • org.apache.jena.larq.assembler.AssemblerLARQ
  • org.apache.jena.larq.examples.ExLucene1
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.