package org.apidesign.runtime.check;

 import java.util.Map;

 public final class RuntimeCheck {

     private RuntimeCheck() {

     }

     public static boolean requiresAtLeast(String minVersion, String apiName, ClassLoader caller) {

         if (caller instanceof AwareLoader) {

             String realVersion = ((AwareLoader)caller).requestedVersion(apiName);

             if (realVersion != null) {

                 double minV = Double.parseDouble(minVersion);

                 double realV = Double.parseDouble(realVersion);

                 return minV <= realV;

             }

         }

         return false;

     }

     public static interface AwareLoader {

         public String requestedVersion(String apiName);

     }

     public static ClassLoader create(ClassLoader wrap, Map<String,String> requiredVersion) {

         return new VersionAwareClassLoader(wrap, requiredVersion);

     }

 }