Examples with REACT_ON_CALL org.drools.modelcompiler.builder.generator.DslMethodNames.REACT_ON_CALL used on opensource projects

Example 1 with REACT_ON_CALL

use of org.drools.modelcompiler.builder.generator.DslMethodNames.REACT_ON_CALL in project drools by kiegroup.

the class AccumulateVisitor method composeTwoBindings.

private void composeTwoBindings(String binding, MethodCallExpr newBindingExpression) {
    context.findBindingExpression(binding).ifPresent(oldBind -> {
        // compose newComposedBinding using oldBind and newBindingExpression. But still keep oldBind.
        LambdaExpr oldBindLambda = oldBind.findFirst(LambdaExpr.class).orElseThrow(RuntimeException::new);
        LambdaExpr newBindLambda = newBindingExpression.findFirst(LambdaExpr.class).orElseThrow(RuntimeException::new);
        LambdaExpr tmpOldBindLambda = oldBindLambda.clone();
        Expression newComposedLambda = LambdaUtil.appendNewLambdaToOld(tmpOldBindLambda, newBindLambda);
        MethodCallExpr newComposedBinding = new MethodCallExpr(BIND_CALL, newBindingExpression.getArgument(0), newComposedLambda);
        newComposedBinding.setScope(oldBind.getScope().orElseThrow(RuntimeException::new));
        Optional<MethodCallExpr> optReactOn = oldBind.getArguments().stream().filter(MethodCallExpr.class::isInstance).map(MethodCallExpr.class::cast).filter(exp -> exp.getName().asString().equals(REACT_ON_CALL)).findFirst();
        if (optReactOn.isPresent()) {
            newComposedBinding.addArgument(optReactOn.get().clone());
        }
        // insert newComposedBinding at the first in the chain
        oldBind.setScope(newComposedBinding);
    });
}