Examples of FieldQuery

org.apache.lucene.search.vectorhighlight.FieldQuery
FieldQuery breaks down query object into terms/phrases and keeps them in a QueryPhraseMap structure.
org.apache.stanbol.entityhub.servicesapi.query.FieldQuery
Simple query interface that allows to search for representations based on fields and there values.
Currently it is only possible to set a single constraint per field. Therefore it is not possible to combine an range constraint with an language constraint. e.g. searching for all labels form a-f in a list of given languages. TODO: This shortcoming needs to be reevaluated. The intension was to ease the implementation and the usage of this interface. TODO: Implementation need to be able to throw UnsupportedConstraintExceptions for specific combinations of Constraints e.g. Regex or case insensitive ... TODO: Would be nice if an Implementation could also announce the list of supported constraints (e.g. via Capability levels ...) @author Rupert Westenthaler

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

        }
        return container;
    }


    private JSONObject reconcile(ReconcileQuery rQuery) throws JSONException, EntityhubException {
        FieldQuery query = createFieldQuery();
        query.addSelectedFields(SELECTED_FIELDS);
        addNameConstraint(rQuery, query);
        addTypeConstraint(rQuery, query);
        addPropertyConstraints(rQuery, query);
        query.setLimit(query.getLimit());
        QueryResultList<Representation> results = performQuery(query);
        List<JSONObject> jResultList = new ArrayList<JSONObject>(results.size());
        //we need to know the highest score to normalise between [0..1]
        double maxQueryScore = -1;
        if(!results.isEmpty()){

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

        }
        pattern = pattern.trim();
        pattern += "*";


        FieldQueryFactory qf = DefaultQueryFactory.getInstance();
        FieldQuery fieldQuery = qf.createFieldQuery();
        Collection<String> selectedFields = new ArrayList<String>();
        selectedFields.add(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD);
        fieldQuery.addSelectedFields(selectedFields);
        fieldQuery.setConstraint(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD, new TextConstraint(pattern,
                PatternType.wildcard, false, "en"));
        fieldQuery.setLimit(AUTOCOMPLETED_KEYWORD_NUMBER);
        fieldQuery.setOffset(0);


        List<String> result = new ArrayList<String>();
        QueryResultList<Representation> entityhubResult = referencedSiteManager.find(fieldQuery);
        for (Representation rep : entityhubResult) {
            result.add(rep.getFirst(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD).toString());

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

    private SiteManager referencedSiteManager;


    @Override
    public Map<String,List<RelatedKeyword>> search(String keyword) throws SearchException {
        Map<String,List<RelatedKeyword>> results = new HashMap<String,List<RelatedKeyword>>();
        FieldQuery fieldQuery = getFieldQuery(keyword);
        QueryResultList<Representation> externalEnties = referencedSiteManager.find(fieldQuery);
        String entityId = null;
        if (externalEnties != null && externalEnties.size() > 0) {
            entityId = externalEnties.iterator().next().getId();
            try {

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

        return search(keyword);
    }


    private FieldQuery getFieldQuery(String keyword) {
        FieldQueryFactory qf = DefaultQueryFactory.getInstance();
        FieldQuery fieldQuery = qf.createFieldQuery();
        Collection<String> selectedFields = new ArrayList<String>();
        selectedFields.add(RDFS.label.getUnicodeString());
        fieldQuery.addSelectedFields(selectedFields);
        fieldQuery.setConstraint(RDFS.label.getUnicodeString(), new TextConstraint(keyword,
                PatternType.wildcard, false, "en"));
        fieldQuery.setLimit(1);
        fieldQuery.setOffset(0);
        return fieldQuery;
    }

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

     * detected as similarity constraints
     */


    protected QueryResultList<Entity> query(Site dbpediaSite, String savedEntityLabel, String language,
            String extractionContext) throws SiteException {
        FieldQuery query = dbpediaSite.getQueryFactory().createFieldQuery();
        if (savedEntityLabel != null && !savedEntityLabel.isEmpty()) {
            Constraint labelConstraint;
            if (language != null) {
                labelConstraint = new TextConstraint(savedEntityLabel, false, language, null);
            } else {
                labelConstraint = new TextConstraint(savedEntityLabel, false);
            }
            // TODO: what happens if a recommendation was not based on rdfs:label?
            query.setConstraint(RDFS_LABEL.getUnicodeString(), labelConstraint);
        } else {
            log.warn("parsed label {} was empty or NULL. Will use Similarity constraint only!",
                savedEntityLabel);
        }
        query.setConstraint(SpecialFieldEnum.fullText.getUri(), new SimilarityConstraint(extractionContext));
        query.setLimit(25);


        return dbpediaSite.findEntities(query);
    }

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

        log.debug("  > field  : " + field);
        log.debug("  > lang  : " + language);
        log.debug("  > limit : " + limit);
        log.debug("  > offset: " + offset);
        log.debug("  > ldpath: " + ldpath);
        FieldQuery query;
        if(ldpath != null && !ldpath.isEmpty()){ //STANBOL-417 
            query = new LDPathFieldQueryImpl();
            ((LDPathFieldQueryImpl)query).setLDPathSelect(ldpath);
        } else { //if no LDPath is parsed select the default field
            query = queryFactory.createFieldQuery();
            Collection<String> selectedFields = new ArrayList<String>();
            selectedFields.add(field); //select also the field used to find entities
            query.addSelectedFields(selectedFields);
        }
        if (language == null || language.trim().isEmpty()) {
            query.setConstraint(field, new TextConstraint(name, PatternType.wildcard, false));
        } else {
            query.setConstraint(field, new TextConstraint(name, PatternType.wildcard, false, language));
        }
        if (limit != null && limit > 0) {
            query.setLimit(limit);
        }
        if(offset != null && offset > 0) {
            query.setOffset(offset);
        }
        return query;
    }

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

     * @param patternType
     */
    private String generateSparqlQueryString(String textWithDoubleQuote, PatternType patternType) {
      int limit = 10;
      FieldQueryFactory qf = DefaultQueryFactory.getInstance();
      FieldQuery query = qf.createFieldQuery();
      
      String DEFAULT_AUTOCOMPLETE_SEARCH_FIELD = NamespaceEnum.rdfs+"label";
      
      Collection<String> selectedFields = new ArrayList<String>();
      selectedFields.add(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD);
      query.addSelectedFields(selectedFields);
      query.setConstraint(DEFAULT_AUTOCOMPLETE_SEARCH_FIELD, 
          new TextConstraint(textWithDoubleQuote, patternType, true, "en",null));
      query.setLimit(10);
      query.setOffset(0);
      
      final SparqlFieldQuery sparqlQuery = SparqlFieldQueryFactory.getSparqlFieldQuery(query);
      
      return SparqlQueryUtils.createSparqlSelectQuery(sparqlQuery, false,limit,SparqlEndpointTypeEnum.Standard);
  }

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

                                .entity(messsage)
                                .header(HttpHeaders.ACCEPT, acceptedMediaType).build();
                    }
                }
            }
            FieldQuery query = JerseyUtils.createFieldQueryForFindRequest(name, property, language,
                limit == null || limit < 1 ? DEFAULT_FIND_RESULT_LIMIT : limit, offset,ldpath);
            
            // For the Entityhub we support to select additional fields for results
            // of find requests. For the Sites and {site} endpoint this is currently
            // deactivated because of very bad performance with OPTIONAL graph patterns
            // in SPARQL queries.
            Collection<String> additionalSelectedFields = new ArrayList<String>();
            if (select != null && !select.isEmpty()) {
                for (String selected : select.trim().split(" ")) {
                    if (selected != null && !selected.isEmpty()) {
                        additionalSelectedFields.add(selected);
                    }
                }
            }
            query.addSelectedFields(additionalSelectedFields);
            return executeQuery(query, headers, acceptedMediaType);
        }
    }

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery

        test1.add(field, "This is the text content of a field with value1.");
        test2.add(field, "This is the text content of a field with value2.");
        Iterable<Representation> updatedIterable = yard.update(Arrays.asList(test1, test2));
        assertNotNull(updatedIterable);


        FieldQuery query = yard.getQueryFactory().createFieldQuery();
        query.setConstraint(field, new TextConstraint(Arrays.asList("text content")));
        QueryResultList<Representation> results = yard.find(query);
        assertEquals(2, results.size());


        // fetch the light / minimal representation
        query = yard.getQueryFactory().createFieldQuery();
        query.setConstraint(field, new TextConstraint(Arrays.asList("value2")));
        results = yard.find(query);
        assertEquals(1, results.size());
        Representation result = results.iterator().next();
        assertEquals("urn:yard.test.testFieldQuery:representation.id2", result.getId());
        assertEquals(null, result.getFirst(field));

View Full Code Here

Examples of org.apache.stanbol.entityhub.servicesapi.query.FieldQuery


        Iterable<Representation> updatedIterable = yard.update(Arrays.asList(test1, test2, test3));
        assertNotNull(updatedIterable);


        // Perform a first similarity query that looks a lot like the first document
        FieldQuery query = yard.getQueryFactory().createFieldQuery();
        query.setConstraint(similarityfield, new SimilarityConstraint("aaaa aaaa aaaa aaaa zzzz yyyy"));
        QueryResultList<Representation> results = yard.find(query);
        assertEquals(2, results.size());
        Iterator<Representation> it = results.iterator();
        Representation first = it.next();
        assertEquals("urn:yard.test.testFieldQueryWithSimilarityConstraint:representation.id1", first.getId());
        // assertEquals(0.99, first.getFirst("http://www.iks-project.eu/ontology/rick/query/score"));


        Representation second = it.next();
        assertEquals("urn:yard.test.testFieldQueryWithSimilarityConstraint:representation.id2",
            second.getId());
        // assertEquals(0.80, first.getFirst("http://www.iks-project.eu/ontology/rick/query/score"));


        // combine similarity with traditional filtering
        query = yard.getQueryFactory().createFieldQuery();
        query.setConstraint(similarityfield, new SimilarityConstraint("aaaa aaaa aaaa aaaa zzzz yyyy"));
        query.setConstraint(filterfield, new TextConstraint(Arrays.asList("other")));
        results = yard.find(query);
        assertEquals(1, results.size());
        it = results.iterator();
        first = it.next();
        assertEquals("urn:yard.test.testFieldQueryWithSimilarityConstraint:representation.id2", first.getId());

View Full Code Here

0 1 2 3 4 5

TOP

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.