Enterprise Distributed Application Service:Error code: HSF-0034 - Enterprise Distributed Application Service

Error message

An error occurs when getting userId based on the unitized parameter route configured by the user.

HSF throws this error when the unitized routing logic fails to extract a userId from the request. The route-to-userId mapping method is missing, received unexpected input, or returned an invalid result.

Quick diagnostic path: Verify that the route-to-userId mapping method exists and is publicly accessible, then confirm that the incoming request carries a valid routing parameter that matches your HSF unitization configuration.

Causes

The following conditions trigger this error:

Condition	Description
Missing mapping method	The route-to-`userId` mapping method does not exist or is not publicly accessible.
Signature mismatch	The mapping method signature does not match the expected input type.
Null or empty parameter	The routing parameter in the incoming request is `null` or empty.
Runtime exception	The mapping method throws an exception at runtime, such as a `NullPointerException` or `ClassCastException`.
Configuration mismatch	The routing parameter name in the HSF unitization configuration does not match the parameter name in the actual request.

Solution

Work through the following steps to identify and resolve the issue.

Step 1: Verify the mapping method exists

Confirm that the method responsible for mapping a route to a userId is defined in your service code and is publicly accessible.

// Verify this method exists in your service implementation
public String getUserIdFromRoute(String routeParameter) {
    // Your route-to-userId mapping logic
    return userId;
}

If the method is missing, add it to your service implementation. If it exists, confirm that the method modifier is public.

Step 2: Check the method signature

Confirm that the mapping method accepts the correct input type. A type mismatch between the configured route parameter and the method argument triggers this error.

For example, if the HSF unitization configuration specifies a String routing parameter, the method must accept String -- not Integer or another type.

Step 3: Validate the routing parameter

Check that the incoming request carries a non-null routing parameter. Add logging before the mapping call to inspect the value:

// Add temporary logging to inspect the routing parameter
logger.info("Unitized route parameter value: {}", routeParameter);

If the value is null or empty, trace the issue back to the caller or the request construction logic.

Step 4: Check the HSF unitization configuration

Verify that the routing parameter name configured in the Enterprise Distributed Application Service (EDAS) console or in your HSF configuration file matches the parameter name used in the actual request.

Step 5: Review application logs

Search for related exceptions in your application logs:

grep -i "unitize\|HSF-0034\|userId" <your-application-log-path>

Look for stack traces that point to the failing line in the mapping method. The following table lists exceptions commonly associated with this error:

Exception	Likely cause
`NullPointerException`	Routing parameter is `null`.
`ClassCastException`	Type mismatch in the mapping method.
`NoSuchMethodException`	Mapping method not found.
`IllegalArgumentException`	Routing parameter format is invalid.

Verification checklist

After you apply a fix, confirm the following before you redeploy:

The route-to-userId mapping method exists and is public.
The method signature matches the expected input type.
The routing parameter name matches the name configured in the EDAS console or HSF configuration file.
The mapping method returns a non-null userId for all expected routing parameter values.