A BoostQueryNode boosts the QueryNode tree which is under this node. So, it must only and always have one child. The boost value may vary from 0.0 to 1.0.
Inheritance: QueryNodeImpl
Exemplo n.º 1
0
        public IQueryNode Term(string field)
        {
            Token term, boost = null, fuzzySlop = null, goop1, goop2;
            bool fuzzy = false;
            bool regexp = false;
            bool startInc = false;
            bool endInc = false;
            IQueryNode q = null;
            FieldQueryNode qLower, qUpper;
#pragma warning disable 612, 618
            float defaultMinSimilarity = Search.FuzzyQuery.DefaultMinSimilarity;
#pragma warning restore 612, 618
            switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
            {
                case RegexpToken.TERM:
                case RegexpToken.REGEXPTERM:
                case RegexpToken.NUMBER:
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.TERM:
                            term = Jj_consume_token(RegexpToken.TERM);
                            q = new FieldQueryNode(field, EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), term.beginColumn, term.endColumn);
                            break;
                        case RegexpToken.REGEXPTERM:
                            term = Jj_consume_token(RegexpToken.REGEXPTERM);
                            regexp = true;
                            break;
                        case RegexpToken.NUMBER:
                            term = Jj_consume_token(RegexpToken.NUMBER);
                            break;
                        default:
                            jj_la1[15] = jj_gen;
                            Jj_consume_token(-1);
                            throw new ParseException();
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.FUZZY_SLOP:
                            fuzzySlop = Jj_consume_token(RegexpToken.FUZZY_SLOP);
                            fuzzy = true;
                            break;
                        default:
                            jj_la1[16] = jj_gen;
                            break;
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.CARAT:
                            Jj_consume_token(RegexpToken.CARAT);
                            boost = Jj_consume_token(RegexpToken.NUMBER);
                            switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                            {
                                case RegexpToken.FUZZY_SLOP:
                                    fuzzySlop = Jj_consume_token(RegexpToken.FUZZY_SLOP);
                                    fuzzy = true;
                                    break;
                                default:
                                    jj_la1[17] = jj_gen;
                                    break;
                            }
                            break;
                        default:
                            jj_la1[18] = jj_gen;
                            break;
                    }
                    if (fuzzy)
                    {
                        float fms = defaultMinSimilarity;
                        try
                        {
                            fms = Convert.ToSingle(fuzzySlop.image.Substring(1), CultureInfo.InvariantCulture);
                        }
#pragma warning disable 168
                        catch (Exception ignored) { }
#pragma warning restore 168
                        if (fms < 0.0f)
                        {
                            { if (true) throw new ParseException(new MessageImpl(QueryParserMessages.INVALID_SYNTAX_FUZZY_LIMITS)); }
                        }
                        else if (fms >= 1.0f && fms != (int)fms)
                        {
                            { if (true) throw new ParseException(new MessageImpl(QueryParserMessages.INVALID_SYNTAX_FUZZY_EDITS)); }
                        }
                        q = new FuzzyQueryNode(field, EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), fms, term.beginColumn, term.endColumn);
                    }
                    else if (regexp)
                    {
                        string re = term.image.Substring(1, (term.image.Length - 1) - 1);
                        q = new RegexpQueryNode(field, re, 0, re.Length);
                    }
                    break;
                case RegexpToken.RANGEIN_START:
                case RegexpToken.RANGEEX_START:
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.RANGEIN_START:
                            Jj_consume_token(RegexpToken.RANGEIN_START);
                            startInc = true;
                            break;
                        case RegexpToken.RANGEEX_START:
                            Jj_consume_token(RegexpToken.RANGEEX_START);
                            break;
                        default:
                            jj_la1[19] = jj_gen;
                            Jj_consume_token(-1);
                            throw new ParseException();
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.RANGE_GOOP:
                            goop1 = Jj_consume_token(RegexpToken.RANGE_GOOP);
                            break;
                        case RegexpToken.RANGE_QUOTED:
                            goop1 = Jj_consume_token(RegexpToken.RANGE_QUOTED);
                            break;
                        default:
                            jj_la1[20] = jj_gen;
                            Jj_consume_token(-1);
                            throw new ParseException();
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.RANGE_TO:
                            Jj_consume_token(RegexpToken.RANGE_TO);
                            break;
                        default:
                            jj_la1[21] = jj_gen;
                            break;
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.RANGE_GOOP:
                            goop2 = Jj_consume_token(RegexpToken.RANGE_GOOP);
                            break;
                        case RegexpToken.RANGE_QUOTED:
                            goop2 = Jj_consume_token(RegexpToken.RANGE_QUOTED);
                            break;
                        default:
                            jj_la1[22] = jj_gen;
                            Jj_consume_token(-1);
                            throw new ParseException();
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.RANGEIN_END:
                            Jj_consume_token(RegexpToken.RANGEIN_END);
                            endInc = true;
                            break;
                        case RegexpToken.RANGEEX_END:
                            Jj_consume_token(RegexpToken.RANGEEX_END);
                            break;
                        default:
                            jj_la1[23] = jj_gen;
                            Jj_consume_token(-1);
                            throw new ParseException();
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.CARAT:
                            Jj_consume_token(RegexpToken.CARAT);
                            boost = Jj_consume_token(RegexpToken.NUMBER);
                            break;
                        default:
                            jj_la1[24] = jj_gen;
                            break;
                    }
                    if (goop1.kind == RegexpToken.RANGE_QUOTED)
                    {
                        goop1.image = goop1.image.Substring(1, (goop1.image.Length - 1) - 1);
                    }
                    if (goop2.kind == RegexpToken.RANGE_QUOTED)
                    {
                        goop2.image = goop2.image.Substring(1, (goop2.image.Length - 1) - 1);
                    }

                    qLower = new FieldQueryNode(field,
                                             EscapeQuerySyntaxImpl.DiscardEscapeChar(goop1.image), goop1.beginColumn, goop1.endColumn);
                    qUpper = new FieldQueryNode(field,
                                                 EscapeQuerySyntaxImpl.DiscardEscapeChar(goop2.image), goop2.beginColumn, goop2.endColumn);
                    q = new TermRangeQueryNode(qLower, qUpper, startInc ? true : false, endInc ? true : false);
                    break;
                case RegexpToken.QUOTED:
                    term = Jj_consume_token(RegexpToken.QUOTED);
                    q = new QuotedFieldQueryNode(field, EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image.Substring(1, (term.image.Length - 1) - 1)), term.beginColumn + 1, term.endColumn - 1);
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.FUZZY_SLOP:
                            fuzzySlop = Jj_consume_token(RegexpToken.FUZZY_SLOP);
                            break;
                        default:
                            jj_la1[25] = jj_gen;
                            break;
                    }
                    switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                    {
                        case RegexpToken.CARAT:
                            Jj_consume_token(RegexpToken.CARAT);
                            boost = Jj_consume_token(RegexpToken.NUMBER);
                            break;
                        default:
                            jj_la1[26] = jj_gen;
                            break;
                    }
                    int phraseSlop = 0;

                    if (fuzzySlop != null)
                    {
                        try
                        {
                            phraseSlop = (int)Convert.ToSingle(fuzzySlop.image.Substring(1), CultureInfo.InvariantCulture);
                            q = new SlopQueryNode(q, phraseSlop);
                        }
#pragma warning disable 168
                        catch (Exception ignored)
#pragma warning restore 168
                        {
                            /* Should this be handled somehow? (defaults to "no PhraseSlop", if
                           * slop number is invalid)
                           */
                        }
                    }
                    break;
                default:
                    jj_la1[27] = jj_gen;
                    Jj_consume_token(-1);
                    throw new ParseException();
            }
            if (boost != null)
            {
                float f = (float)1.0;
                try
                {
                    f = Convert.ToSingle(boost.image, CultureInfo.InvariantCulture);
                    // avoid boosting null queries, such as those caused by stop words
                    if (q != null)
                    {
                        q = new BoostQueryNode(q, f);
                    }
                }
#pragma warning disable 168
                catch (Exception ignored)
#pragma warning restore 168
                {
                    /* Should this be handled somehow? (defaults to "no boost", if
                       * boost number is invalid)
                       */
                }
            }
            { if (true) return q; }
            throw new Exception("Missing return statement in function");
        }
Exemplo n.º 2
0
        public IQueryNode Clause(string field)
        {
            IQueryNode q;
            Token fieldToken = null, boost = null, @operator = null, term = null;
            FieldQueryNode qLower, qUpper;
            bool lowerInclusive, upperInclusive;

            bool group = false;
            if (Jj_2_2(3))
            {
                fieldToken = Jj_consume_token(RegexpToken.TERM);
                switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                {
                    case RegexpToken.OP_COLON:
                    case RegexpToken.OP_EQUAL:
                        switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                        {
                            case RegexpToken.OP_COLON:
                                Jj_consume_token(RegexpToken.OP_COLON);
                                break;
                            case RegexpToken.OP_EQUAL:
                                Jj_consume_token(RegexpToken.OP_EQUAL);
                                break;
                            default:
                                jj_la1[7] = jj_gen;
                                Jj_consume_token(-1);
                                throw new ParseException();
                        }
                        field = EscapeQuerySyntaxImpl.DiscardEscapeChar(fieldToken.image).ToString();
                        q = Term(field);
                        break;
                    case RegexpToken.OP_LESSTHAN:
                    case RegexpToken.OP_LESSTHANEQ:
                    case RegexpToken.OP_MORETHAN:
                    case RegexpToken.OP_MORETHANEQ:
                        switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                        {
                            case RegexpToken.OP_LESSTHAN:
                                @operator = Jj_consume_token(RegexpToken.OP_LESSTHAN);
                                break;
                            case RegexpToken.OP_LESSTHANEQ:
                                @operator = Jj_consume_token(RegexpToken.OP_LESSTHANEQ);
                                break;
                            case RegexpToken.OP_MORETHAN:
                                @operator = Jj_consume_token(RegexpToken.OP_MORETHAN);
                                break;
                            case RegexpToken.OP_MORETHANEQ:
                                @operator = Jj_consume_token(RegexpToken.OP_MORETHANEQ);
                                break;
                            default:
                                jj_la1[8] = jj_gen;
                                Jj_consume_token(-1);
                                throw new ParseException();
                        }
                        field = EscapeQuerySyntaxImpl.DiscardEscapeChar(fieldToken.image).ToString();
                        switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                        {
                            case RegexpToken.TERM:
                                term = Jj_consume_token(RegexpToken.TERM);
                                break;
                            case RegexpToken.QUOTED:
                                term = Jj_consume_token(RegexpToken.QUOTED);
                                break;
                            case RegexpToken.NUMBER:
                                term = Jj_consume_token(RegexpToken.NUMBER);
                                break;
                            default:
                                jj_la1[9] = jj_gen;
                                Jj_consume_token(-1);
                                throw new ParseException();
                        }
                        if (term.kind == RegexpToken.QUOTED)
                        {
                            term.image = term.image.Substring(1, (term.image.Length - 1) - 1);
                        }
                        switch (@operator.kind)
                        {
                            case RegexpToken.OP_LESSTHAN:
                                lowerInclusive = true;
                                upperInclusive = false;

                                qLower = new FieldQueryNode(field,
                                                           "*", term.beginColumn, term.endColumn);
                                qUpper = new FieldQueryNode(field,
                                                     EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), term.beginColumn, term.endColumn);

                                break;
                            case RegexpToken.OP_LESSTHANEQ:
                                lowerInclusive = true;
                                upperInclusive = true;

                                qLower = new FieldQueryNode(field,
                                                         "*", term.beginColumn, term.endColumn);
                                qUpper = new FieldQueryNode(field,
                                                         EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), term.beginColumn, term.endColumn);
                                break;
                            case RegexpToken.OP_MORETHAN:
                                lowerInclusive = false;
                                upperInclusive = true;

                                qLower = new FieldQueryNode(field,
                                                         EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), term.beginColumn, term.endColumn);
                                qUpper = new FieldQueryNode(field,
                                                         "*", term.beginColumn, term.endColumn);
                                break;
                            case RegexpToken.OP_MORETHANEQ:
                                lowerInclusive = true;
                                upperInclusive = true;

                                qLower = new FieldQueryNode(field,
                                                         EscapeQuerySyntaxImpl.DiscardEscapeChar(term.image), term.beginColumn, term.endColumn);
                                qUpper = new FieldQueryNode(field,
                                                         "*", term.beginColumn, term.endColumn);
                                break;
                            default:
                                { if (true) throw new Exception("Unhandled case: operator=" + @operator.ToString()); }
                        }
                        q = new TermRangeQueryNode(qLower, qUpper, lowerInclusive, upperInclusive);
                        break;
                    default:
                        jj_la1[10] = jj_gen;
                        Jj_consume_token(-1);
                        throw new ParseException();
                }
            }
            else
            {
                switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                {
                    case RegexpToken.LPAREN:
                    case RegexpToken.QUOTED:
                    case RegexpToken.TERM:
                    case RegexpToken.REGEXPTERM:
                    case RegexpToken.RANGEIN_START:
                    case RegexpToken.RANGEEX_START:
                    case RegexpToken.NUMBER:
                        if (Jj_2_1(2))
                        {
                            fieldToken = Jj_consume_token(RegexpToken.TERM);
                            switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                            {
                                case RegexpToken.OP_COLON:
                                    Jj_consume_token(RegexpToken.OP_COLON);
                                    break;
                                case RegexpToken.OP_EQUAL:
                                    Jj_consume_token(RegexpToken.OP_EQUAL);
                                    break;
                                default:
                                    jj_la1[11] = jj_gen;
                                    Jj_consume_token(-1);
                                    throw new ParseException();
                            }
                            field = EscapeQuerySyntaxImpl.DiscardEscapeChar(fieldToken.image).ToString();
                        }
                        else
                        {
                            ;
                        }
                        switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                        {
                            case RegexpToken.QUOTED:
                            case RegexpToken.TERM:
                            case RegexpToken.REGEXPTERM:
                            case RegexpToken.RANGEIN_START:
                            case RegexpToken.RANGEEX_START:
                            case RegexpToken.NUMBER:
                                q = Term(field);
                                break;
                            case RegexpToken.LPAREN:
                                Jj_consume_token(RegexpToken.LPAREN);
                                q = Query(field);
                                Jj_consume_token(RegexpToken.RPAREN);
                                switch ((jj_ntk == -1) ? Jj_ntk() : jj_ntk)
                                {
                                    case RegexpToken.CARAT:
                                        Jj_consume_token(RegexpToken.CARAT);
                                        boost = Jj_consume_token(RegexpToken.NUMBER);
                                        break;
                                    default:
                                        jj_la1[12] = jj_gen;
                                        break;
                                }
                                group = true;
                                break;
                            default:
                                jj_la1[13] = jj_gen;
                                Jj_consume_token(-1);
                                throw new ParseException();
                        }
                        break;
                    default:
                        jj_la1[14] = jj_gen;
                        Jj_consume_token(-1);
                        throw new ParseException();
                }
            }
            if (boost != null)
            {
                float f = (float)1.0;
                try
                {
                    f = Convert.ToSingle(boost.image, CultureInfo.InvariantCulture);
                    // avoid boosting null queries, such as those caused by stop words
                    if (q != null)
                    {
                        q = new BoostQueryNode(q, f);
                    }
                }
#pragma warning disable 168
                catch (Exception ignored)
#pragma warning restore 168
                {
                    /* Should this be handled somehow? (defaults to "no boost", if
                         * boost number is invalid)
                         */
                }
            }
            if (group) { q = new GroupQueryNode(q); }
            { if (true) return q; }
            throw new Exception("Missing return statement in function");
        }