Hierarchy Custom Setting context in Apex

/*** Download is a checkbox in Hierarchy Custom Setting  ****/

public Hierarchy_Custom_Setting_Controller{

  public static returnType methodName(){

    Boolean isAllowed = false;  

    // Get current User custom setting. Priority 1

    Hierarchy_Custom_Setting__c userLevel = Hierarchy_Custom_Setting__c.getValues(UserInfo.getUserId());

    // Get current profile custom setting. Priority 2

    Hierarchy_Custom_Setting__c profileLevel = Hierarchy_Custom_Setting__c.getvalues(UserInfo.getProfileId()); 

    // Get current Organization custom setting. Priority 3

    Hierarchy_Custom_Setting__c orgLevel = Hierarchy_Custom_Setting__c.getvalues(UserInfo.getOrganizationId());

    

    if(userLevel != null) {

isAllowed = userLevel.Download;

    }else if(profileLevel != null) {

isAllowed = profileLevel.Download;

    }else if(orgLevel != null) { 

isAllowed = orgLevel.Download;

}

    if(!isAllowed){

        return;

}

//Logic to excute start from here

}

}