Examples with DescrBuilder org.drools.drl.ast.dsl.DescrBuilder used on opensource projects

Example 21 with DescrBuilder

use of org.drools.drl.ast.dsl.DescrBuilder in project drools by kiegroup.

the class DRL6Parser method lhsAccumulate.

/**
 * lhsAccumulate := (ACCUMULATE|ACC) LEFT_PAREN lhsAnd (COMMA|SEMICOLON)
 *                      accumulateFunctionBinding (COMMA accumulateFunctionBinding)*
 *                      (SEMICOLON constraints)?
 *                  RIGHT_PAREN SEMICOLON?
 *
 * @param ce
 * @return
 * @throws org.antlr.runtime.RecognitionException
 */
private BaseDescr lhsAccumulate(PatternContainerDescrBuilder<?, ?> ce) throws RecognitionException {
    PatternDescrBuilder<?> pattern = null;
    BaseDescr result = null;
    pattern = helper.start((DescrBuilder<?, ?>) ce, PatternDescrBuilder.class, null);
    if (pattern != null) {
        result = pattern.getDescr();
    }
    try {
        if (state.backtracking == 0) {
            pattern.type("Object");
            pattern.isQuery(false);
        // might have to add the implicit bindings as well
        }
        AccumulateDescrBuilder<?> accumulate = helper.start(pattern, AccumulateDescrBuilder.class, null);
        try {
            if (helper.validateIdentifierKey(DroolsSoftKeywords.ACCUMULATE)) {
                match(input, DRL6Lexer.ID, DroolsSoftKeywords.ACCUMULATE, null, DroolsEditorType.KEYWORD);
            } else {
                // might be using the short mnemonic
                match(input, DRL6Lexer.ID, DroolsSoftKeywords.ACC, null, DroolsEditorType.KEYWORD);
            }
            if (state.failed)
                return null;
            if (state.backtracking == 0 && input.LA(1) != DRL6Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE);
            }
            match(input, DRL6Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            CEDescrBuilder<?, AndDescr> source = accumulate.source();
            try {
                helper.start(source, CEDescrBuilder.class, null);
                lhsAnd(source, true);
                if (state.failed)
                    return null;
                if (source.getDescr() != null && source.getDescr() instanceof ConditionalElementDescr) {
                    ConditionalElementDescr root = (ConditionalElementDescr) source.getDescr();
                    BaseDescr[] descrs = root.getDescrs().toArray(new BaseDescr[root.getDescrs().size()]);
                    root.getDescrs().clear();
                    for (int i = 0; i < descrs.length; i++) {
                        root.addOrMerge(descrs[i]);
                    }
                }
            } finally {
                helper.end(CEDescrBuilder.class, source);
            }
            if (input.LA(1) == DRL6Lexer.COMMA) {
                match(input, DRL6Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
            } else if (input.LA(-1) != DRL6Lexer.SEMICOLON) {
                // lhsUnary will consume an optional SEMICOLON, so we need to check if it was consumed already
                // or if we must fail consuming it now
                match(input, DRL6Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
            }
            // accumulate functions
            accumulateFunctionBinding(accumulate);
            if (state.failed)
                return null;
            while (input.LA(1) == DRL6Lexer.COMMA) {
                match(input, DRL6Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
                accumulateFunctionBinding(accumulate);
                if (state.failed)
                    return null;
            }
            if (input.LA(1) == DRL6Lexer.SEMICOLON) {
                match(input, DRL6Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
                constraints(pattern);
            }
            match(input, DRL6Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            helper.end(AccumulateDescrBuilder.class, accumulate);
            if (state.backtracking == 0 && input.LA(1) != DRL6Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
            }
        }
    } finally {
        helper.end(PatternDescrBuilder.class, pattern);
    }
    if (input.LA(1) == DRL6Lexer.SEMICOLON) {
        match(input, DRL6Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return null;
    }
    return result;
}

Example 22 with DescrBuilder

use of org.drools.drl.ast.dsl.DescrBuilder in project drools by kiegroup.

the class DRL6Parser method stringListAttribute.

/**
 * stringListAttribute := attributeKey STRING (COMMA STRING)*
 * @param key
 * @throws org.antlr.runtime.RecognitionException
 */
private AttributeDescr stringListAttribute(AttributeSupportBuilder<?> as, String[] key) throws RecognitionException {
    AttributeDescrBuilder<?> attribute = null;
    try {
        StringBuilder builder = new StringBuilder();
        for (String k : key) {
            if ("-".equals(k)) {
                match(input, DRL6Lexer.MINUS, k, null, // part of the keyword
                DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            } else {
                match(input, DRL6Lexer.ID, k, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            }
            builder.append(k);
        }
        if (state.backtracking == 0) {
            attribute = helper.start((DescrBuilder<?, ?>) as, AttributeDescrBuilder.class, builder.toString());
        }
        builder = new StringBuilder();
        builder.append("[ ");
        Token value = match(input, DRL6Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
        if (state.failed)
            return null;
        builder.append(value.getText());
        while (input.LA(1) == DRL6Lexer.COMMA) {
            match(input, DRL6Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            builder.append(", ");
            value = match(input, DRL6Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
            if (state.failed)
                return null;
            builder.append(value.getText());
        }
        builder.append(" ]");
        if (state.backtracking == 0) {
            if (attribute != null) {
                attribute.value(builder.toString());
                attribute.type(AttributeDescr.Type.LIST);
            }
        }
    } finally {
        if (attribute != null) {
            helper.end(AttributeDescrBuilder.class, attribute);
        }
    }
    return attribute != null ? attribute.getDescr() : null;
}

Example 23 with DescrBuilder

use of org.drools.drl.ast.dsl.DescrBuilder in project drools by kiegroup.

the class DRL6StrictParser method stringListAttribute.

/**
 * stringListAttribute := attributeKey STRING (COMMA STRING)*
 * @param key
 * @throws org.antlr.runtime.RecognitionException
 */
private AttributeDescr stringListAttribute(AttributeSupportBuilder<?> as, String[] key) throws RecognitionException {
    AttributeDescrBuilder<?> attribute = null;
    try {
        StringBuilder builder = new StringBuilder();
        for (String k : key) {
            if ("-".equals(k)) {
                match(input, DRL6Lexer.MINUS, k, null, // part of the keyword
                DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            } else {
                match(input, DRL6Lexer.ID, k, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            }
            builder.append(k);
        }
        if (state.backtracking == 0) {
            attribute = helper.start((DescrBuilder<?, ?>) as, AttributeDescrBuilder.class, builder.toString());
        }
        builder = new StringBuilder();
        builder.append("[ ");
        Token value = match(input, DRL6Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
        if (state.failed)
            return null;
        builder.append(value.getText());
        while (input.LA(1) == DRL6Lexer.COMMA) {
            match(input, DRL6Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            builder.append(", ");
            value = match(input, DRL6Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
            if (state.failed)
                return null;
            builder.append(value.getText());
        }
        builder.append(" ]");
        if (state.backtracking == 0) {
            if (attribute != null) {
                attribute.value(builder.toString());
                attribute.type(AttributeDescr.Type.LIST);
            }
        }
    } finally {
        if (attribute != null) {
            helper.end(AttributeDescrBuilder.class, attribute);
        }
    }
    return attribute != null ? attribute.getDescr() : null;
}

Example 24 with DescrBuilder

use of org.drools.drl.ast.dsl.DescrBuilder in project drools by kiegroup.

the class DRL6StrictParser method stringAttribute.

/**
 * stringAttribute := attributeKey STRING
 * @param key
 * @throws org.antlr.runtime.RecognitionException
 */
private AttributeDescr stringAttribute(AttributeSupportBuilder<?> as, String[] key) throws RecognitionException {
    AttributeDescrBuilder<?> attribute = null;
    try {
        StringBuilder builder = new StringBuilder();
        for (String k : key) {
            if ("-".equals(k)) {
                match(input, DRL6Lexer.MINUS, k, null, // part of the keyword
                DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            } else {
                match(input, DRL6Lexer.ID, k, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            }
            builder.append(k);
        }
        if (state.backtracking == 0) {
            attribute = helper.start((DescrBuilder<?, ?>) as, AttributeDescrBuilder.class, builder.toString());
        }
        Token value = match(input, DRL6Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
        if (state.failed)
            return null;
        if (state.backtracking == 0) {
            if (attribute != null) {
                attribute.value(StringUtils.unescapeJava(safeStripStringDelimiters(value.getText())));
                attribute.type(AttributeDescr.Type.STRING);
            }
        }
    } finally {
        if (attribute != null) {
            helper.end(AttributeDescrBuilder.class, attribute);
        }
    }
    return attribute != null ? attribute.getDescr() : null;
}