Examples of org.apache.lucene.search.Filter

org.apache.lucene.search.Filter
Abstract base class providing a mechanism to use a subset of an index for restriction or permission of index search results.
Note: In Lucene 3.0 {@link #bits(IndexReader)} will be removedand {@link #getDocIdSet(IndexReader)} will be defined as abstract.All implementing classes must therefore implement {@link #getDocIdSet(IndexReader)}in order to work with Lucene 3.0.

        if (mapper.fieldDataType() != GeoPointFieldDataType.TYPE) {
            throw new QueryParsingException(parseContext.index(), "field [" + fieldName + "] is not a geo_point field");
        }
        fieldName = mapper.names().indexName();


        Filter filter = new GeoDistanceFilter(lat, lon, distance, geoDistance, fieldName, parseContext.indexCache().fieldData());
        if (cache) {
            filter = parseContext.cacheFilter(filter, cacheKey);
        }
        filter = wrapSmartNameFilter(filter, parseContext.smartFieldMappers(fieldName), parseContext);
        if (filterName != null) {

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    @Override public void optimizedGlobalExecution(SearchContext searchContext) throws IOException {
        Query query = new DeletionAwareConstantScoreQuery(filter);
        if (super.filter != null) {
            query = new FilteredQuery(query, super.filter);
        }
        Filter searchFilter = searchContext.mapperService().searchFilter(searchContext.types());
        if (searchFilter != null) {
            query = new FilteredQuery(query, searchContext.filterCache().cache(searchFilter));
        }
        TotalHitCountCollector collector = new TotalHitCountCollector();
        searchContext.searcher().search(query, collector);

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    @Override public String[] types() {
        return new String[]{FilterFacet.TYPE};
    }


    @Override public FacetCollector parse(String facetName, XContentParser parser, SearchContext context) throws IOException {
        Filter facetFilter = context.queryParserService().parseInnerFilter(parser);
        return new FilterFacetCollector(facetName, facetFilter, context.filterCache());
    }

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                }
            } else if (token == XContentParser.Token.START_ARRAY) {
                if ("filters".equals(currentFieldName)) {
                    while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
                        String script = null;
                        Filter filter = null;
                        float fboost = Float.NaN;
                        while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
                            if (token == XContentParser.Token.FIELD_NAME) {
                                currentFieldName = parser.currentName();
                            } else if (token == XContentParser.Token.START_OBJECT) {

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        if (mapper.fieldDataType() != GeoPointFieldDataType.TYPE) {
            throw new QueryParsingException(parseContext.index(), "field [" + fieldName + "] is not a geo_point field");
        }
        fieldName = mapper.names().indexName();


        Filter filter = new GeoPolygonFilter(points.toArray(new GeoPolygonFilter.Point[points.size()]), fieldName, parseContext.indexCache().fieldData());
        if (cache) {
            filter = parseContext.cacheFilter(filter, cacheKey);
        }
        filter = wrapSmartNameFilter(filter, parseContext.smartFieldMappers(fieldName), parseContext);
        if (filterName != null) {

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    }


    @Override public Query parse(QueryParseContext parseContext) throws IOException, QueryParsingException {
        XContentParser parser = parseContext.parser();


        Filter filter = null;
        Query query = null;
        float boost = 1.0f;
        boolean cache = false;
        CacheKeyFilter.Key cacheKey = null;

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                } else if ("_cache_key".equals(currentFieldName) || "_cacheKey".equals(currentFieldName)) {
                    cacheKey = new CacheKeyFilter.Key(parser.text());
                }
            }
        }
        Filter filter = new QueryWrapperFilter(query);
        if (cache) {
            filter = parseContext.cacheFilter(filter, cacheKey);
        }
        if (filterName != null) {
            parseContext.addNamedFilter(filterName, filter);

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        FilterParser filterParser = indexQueryParser.filterParser(filterName);
        if (filterParser == null) {
            throw new QueryParsingException(index, "No filter registered for [" + filterName + "]");
        }
        Filter result = filterParser.parse(this);
        if (parser.currentToken() == XContentParser.Token.END_OBJECT || parser.currentToken() == XContentParser.Token.END_ARRAY) {
            // if we are at END_OBJECT, move to the next one...
            parser.nextToken();
        }
        return result;

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    public Filter parseInnerFilter(String filterName) throws IOException, QueryParsingException {
        FilterParser filterParser = indexQueryParser.filterParser(filterName);
        if (filterParser == null) {
            throw new QueryParsingException(index, "No filter registered for [" + filterName + "]");
        }
        Filter result = filterParser.parse(this);
        // don't move to the nextToken in this case...
//        if (parser.currentToken() == XContentParser.Token.END_OBJECT || parser.currentToken() == XContentParser.Token.END_ARRAY) {
//            // if we are at END_OBJECT, move to the next one...
//            parser.nextToken();
//        }

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        if (mapper.fieldDataType() != GeoPointFieldDataType.TYPE) {
            throw new QueryParsingException(parseContext.index(), "field [" + fieldName + "] is not a geo_point field");
        }
        fieldName = mapper.names().indexName();


        Filter filter = new GeoDistanceRangeFilter(lat, lon, from, to, includeLower, includeUpper, geoDistance, fieldName, parseContext.indexCache().fieldData());
        if (cache) {
            filter = parseContext.cacheFilter(filter, cacheKey);
        }
        filter = wrapSmartNameFilter(filter, parseContext.smartFieldMappers(fieldName), parseContext);
        if (filterName != null) {

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