Examples with MethodCallExpr org.drools.javaparser.ast.expr.MethodCallExpr used on opensource projects

Example 51 with MethodCallExpr

use of org.drools.javaparser.ast.expr.MethodCallExpr in project drools by kiegroup.

the class FlowExpressionBuilder method buildIndexedBy.

private MethodCallExpr buildIndexedBy(DrlxParseSuccess drlxParseResult, MethodCallExpr exprDSL) {
    if (!hasIndex(drlxParseResult)) {
        return exprDSL;
    }
    TypedExpression left = drlxParseResult.getLeft();
    TypedExpression right = drlxParseResult.getRight();
    Class<?> indexType = Stream.of(left, right).map(TypedExpression::getType).filter(Objects::nonNull).findFirst().get();
    ClassExpr indexedBy_indexedClass = new ClassExpr(JavaParser.parseType(indexType.getCanonicalName()));
    // not 100% accurate as the type in "nameExpr" is actually parsed if it was JavaParsers as a big chain of FieldAccessExpr
    FieldAccessExpr indexedBy_constraintType = new FieldAccessExpr(new NameExpr("org.drools.model.Index.ConstraintType"), drlxParseResult.getDecodeConstraintType().toString());
    LambdaExpr indexedBy_leftOperandExtractor = new LambdaExpr();
    indexedBy_leftOperandExtractor.addParameter(new Parameter(new UnknownType(), "_this"));
    boolean leftContainsThis = left.getExpression().toString().contains("_this");
    indexedBy_leftOperandExtractor.setBody(new ExpressionStmt(leftContainsThis ? left.getExpression() : right.getExpression()));
    MethodCallExpr indexedByDSL = new MethodCallExpr(exprDSL, INDEXED_BY_CALL);
    indexedByDSL.addArgument(indexedBy_indexedClass);
    indexedByDSL.addArgument(indexedBy_constraintType);
    indexedByDSL.addArgument("" + indexIdGenerator.getFieldId(drlxParseResult.getPatternType(), left.getFieldName()));
    indexedByDSL.addArgument(indexedBy_leftOperandExtractor);
    Collection<String> usedDeclarations = drlxParseResult.getUsedDeclarations();
    if (isAlphaIndex(usedDeclarations)) {
        indexedByDSL.addArgument(right.getExpression());
    } else {
        LambdaExpr indexedBy_rightOperandExtractor = new LambdaExpr();
        indexedBy_rightOperandExtractor.addParameter(new Parameter(new UnknownType(), usedDeclarations.iterator().next()));
        indexedBy_rightOperandExtractor.setBody(new ExpressionStmt(!leftContainsThis ? left.getExpression() : right.getExpression()));
        indexedByDSL.addArgument(indexedBy_rightOperandExtractor);
    }
    return indexedByDSL;
}

Example 52 with MethodCallExpr

use of org.drools.javaparser.ast.expr.MethodCallExpr in project drools by kiegroup.

the class FlowExpressionBuilder method buildBinding.

public MethodCallExpr buildBinding(DrlxParseSuccess drlxParseResult) {
    MethodCallExpr bindDSL = new MethodCallExpr(null, BIND_CALL);
    if (drlxParseResult.hasUnificationVariable()) {
        bindDSL.addArgument(new NameExpr(toVar(drlxParseResult.getUnificationVariable())));
    } else {
        bindDSL.addArgument(new NameExpr(toVar(drlxParseResult.getExprBinding())));
    }
    MethodCallExpr bindAsDSL = new MethodCallExpr(bindDSL, BIND_AS_CALL);
    bindAsDSL.addArgument(new NameExpr(toVar(drlxParseResult.getPatternBinding())));
    final Expression constraintExpression = drlxParseResult.getExpr() instanceof EnclosedExpr ? buildConstraintExpression(drlxParseResult, ((EnclosedExpr) drlxParseResult.getExpr()).getInner()) : buildConstraintExpression(drlxParseResult, drlxParseResult.getUsedDeclarationsOnLeft(), DrlxParseUtil.findLeftLeafOfMethodCall(drlxParseResult.getLeft().getExpression()));
    bindAsDSL.addArgument(constraintExpression);
    return buildReactOn(drlxParseResult, bindAsDSL);
}

Example 53 with MethodCallExpr

use of org.drools.javaparser.ast.expr.MethodCallExpr in project drools by kiegroup.

the class PatternExpressionBuilder method buildBinding.

@Override
public MethodCallExpr buildBinding(DrlxParseSuccess drlxParseResult) {
    MethodCallExpr bindDSL = new MethodCallExpr(null, BIND_CALL);
    if (drlxParseResult.hasUnificationVariable()) {
        bindDSL.addArgument(new NameExpr(toVar(drlxParseResult.getUnificationVariable())));
    } else {
        bindDSL.addArgument(new NameExpr(toVar(drlxParseResult.getExprBinding())));
    }
    final Expression constraintExpression = drlxParseResult.getExpr() instanceof EnclosedExpr ? buildConstraintExpression(drlxParseResult, ((EnclosedExpr) drlxParseResult.getExpr()).getInner()) : buildConstraintExpression(drlxParseResult, drlxParseResult.getUsedDeclarationsOnLeft(), DrlxParseUtil.findLeftLeafOfMethodCall(drlxParseResult.getLeft().getExpression()));
    bindDSL.addArgument(constraintExpression);
    final Optional<MethodCallExpr> methodCallExpr = buildReactOn(drlxParseResult);
    methodCallExpr.ifPresent(bindDSL::addArgument);
    return bindDSL;
}

Example 54 with MethodCallExpr

use of org.drools.javaparser.ast.expr.MethodCallExpr in project drools by kiegroup.

the class PatternExpressionBuilder method buildReactOn.

private Optional<MethodCallExpr> buildReactOn(DrlxParseSuccess drlxParseResult) {
    if (!drlxParseResult.getReactOnProperties().isEmpty()) {
        MethodCallExpr reactOnDSL = new MethodCallExpr(null, "reactOn");
        drlxParseResult.getReactOnProperties().stream().map(StringLiteralExpr::new).forEach(reactOnDSL::addArgument);
        return of(reactOnDSL);
    }
    return Optional.empty();
}

Example 55 with MethodCallExpr

use of org.drools.javaparser.ast.expr.MethodCallExpr in project drools by kiegroup.

the class PatternExpressionBuilder method buildIndexedBy.

private Optional<MethodCallExpr> buildIndexedBy(DrlxParseSuccess drlxParseResult) {
    if (!hasIndex(drlxParseResult)) {
        return Optional.empty();
    }
    IndexUtil.ConstraintType decodeConstraintType = drlxParseResult.getDecodeConstraintType();
    TypedExpression left = drlxParseResult.getLeft();
    TypedExpression right = drlxParseResult.getRight();
    Class<?> indexType = Stream.of(left, right).map(TypedExpression::getType).filter(Objects::nonNull).findFirst().get();
    ClassExpr indexedBy_indexedClass = new ClassExpr(JavaParser.parseType(indexType.getCanonicalName()));
    // not 100% accurate as the type in "nameExpr" is actually parsed if it was JavaParsers as a big chain of FieldAccessExpr
    FieldAccessExpr indexedBy_constraintType = new FieldAccessExpr(new NameExpr("org.drools.model.Index.ConstraintType"), decodeConstraintType.toString());
    LambdaExpr indexedBy_leftOperandExtractor = new LambdaExpr();
    indexedBy_leftOperandExtractor.addParameter(new Parameter(new UnknownType(), "_this"));
    boolean leftContainsThis = left.getExpression().toString().contains("_this");
    indexedBy_leftOperandExtractor.setBody(new ExpressionStmt(leftContainsThis ? left.getExpression() : right.getExpression()));
    MethodCallExpr indexedByDSL = new MethodCallExpr(null, drlxParseResult.isBetaNode() ? BETA_INDEXED_BY_CALL : ALPHA_INDEXED_BY_CALL);
    indexedByDSL.addArgument(indexedBy_indexedClass);
    indexedByDSL.addArgument(indexedBy_constraintType);
    indexedByDSL.addArgument("" + indexIdGenerator.getFieldId(drlxParseResult.getPatternType(), left.getFieldName()));
    indexedByDSL.addArgument(indexedBy_leftOperandExtractor);
    Collection<String> usedDeclarations = drlxParseResult.getUsedDeclarations();
    if (isAlphaIndex(usedDeclarations)) {
        indexedByDSL.addArgument(right.getExpression());
    } else if (usedDeclarations.size() == 1) {
        LambdaExpr indexedBy_rightOperandExtractor = new LambdaExpr();
        indexedBy_rightOperandExtractor.addParameter(new Parameter(new UnknownType(), usedDeclarations.iterator().next()));
        indexedBy_rightOperandExtractor.setBody(new ExpressionStmt(!leftContainsThis ? left.getExpression() : right.getExpression()));
        indexedByDSL.addArgument(indexedBy_rightOperandExtractor);
    }
    return Optional.of(indexedByDSL);
}