public void updateManagedPolicyAttachment()

in aws-sso-permissionset/src/main/java/software/amazon/sso/permissionset/actionProxy/ManagedPolicyAttachmentProxy.java [33:52]

• 16 lines of code
• 4 McCabe index (conditional complexity)

    public void updateManagedPolicyAttachment(String instanceArn,
                                              String permissionSetArn,
                                              List<String> updatedManagedPolicies) {
        if (updatedManagedPolicies != null && updatedManagedPolicies.size() > 0) {
            //This is set to match IAM hard limit of role managed policy attachment policy.
            if (updatedManagedPolicies.size() > 20) {
                throw new CfnServiceLimitExceededException(ResourceModel.TYPE_NAME, MANAGED_POLICIES_LIMIT_EXCEED_MESSAGE);
            }

            List<String> attachedManagedPolicies = getAttachedManagedPolicies(instanceArn, permissionSetArn);
            Set<String> previousManagedPolicies = new HashSet<>(attachedManagedPolicies);
            Set<String> newManagedPolicies = new HashSet<>(updatedManagedPolicies);

            Set<String> managedPoliciesToDetach = Sets.difference(previousManagedPolicies, newManagedPolicies);
            Set<String> managedPoliciesToAttach = Sets.difference(newManagedPolicies, previousManagedPolicies);

            detachManagedPolicies(managedPoliciesToDetach, instanceArn, permissionSetArn);
            attachManagedPolicies(managedPoliciesToAttach, instanceArn, permissionSetArn);
        }
    }