3 Replies Latest reply on Nov 12, 2014 11:09 AM by ctomc

reading attribute value

ckg007 Nov 11, 2014 1:59 PM

I am working on developing an extension - created an operationHandler called activate - I would like to read the attribute value within handler code. I tried following under execute procedure:

String location = DatabaseResourceDefinition.LOCATION.resolveModelAttribute(context, operation).asString();

The value returned is 'undefined' instead of actual value. I am able to read the value using CLI commands.

any help? Thanks,

1. Re: reading attribute value

ctomc Nov 11, 2014 7:52 PM (in response to ckg007)

Not sure what the context is but problem is probably related that you pass "operation" instead of "model" to resolveModelAttribute()

something along the lines

String location = DatabaseResourceDefinition.LOCATION.resolveModelAttribute(context, model).asString();
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2. Re: reading attribute value

ckg007 Nov 12, 2014 11:01 AM (in response to ctomc)

Thanks,

Following is the output of CLI
/profile=full-ha-osgi/subsystem=hajdbc/configuration=mycluster/clusterconfig=cluster/database=db3/:read-resource
{
    "outcome" => "success",
    "result" => {
        "local" => undefined,
        "location" => "'jdbc:postgresql://127.0.1.4/test'",
        "weight" => undefined,
        "property" => undefined
    }
}

I would like to read location attribute value inside my handler code..

@Override
        public void execute(OperationContext context, ModelNode operation) throws OperationFailedException
        {
            if (context.isNormalServer()) {
                context.addStep(new OperationStepHandler() {
                    @Override
                    public void execute(OperationContext context, ModelNode operation) throws OperationFailedException
                    {
                        String location =
                                DatabaseResourceDefinition.LOCATION.resolveModelAttribute(context, operation).asString();

                        context.stepCompleted();
                    }
                }, OperationContext.Stage.RUNTIME);
            }
            else {
                context.getResult().set("");
            }
            context.stepCompleted();
        }

when tried to debug, I see the value is 'undefined'
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3. Re: reading attribute value

ctomc Nov 12, 2014 11:09 AM (in response to ckg007)

you would need something like this

public void execute(OperationContext context, ModelNode operation) throws OperationFailedException{

            // get the model for current resource, that is one on which operation was called on

            ModelNode model = context.readResource(PathAddress.EMPTY).getModel()

            String location = DatabaseResourceDefinition.LOCATION.resolveModelAttribute(context, model).asString();

            context.getResult().set(location); //or do what ever you want with location

            context.stepCompleted();

}

no need to complicate with nested steps etc...
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