package biz.xsoftware.impl.mock;

 import java.lang.reflect.Proxy;

 import biz.xsoftware.mock.MockObject;

 import biz.xsoftware.mock.MockObjectFactory;

 public final class MockObjectFactoryImpl extends MockObjectFactory {

     @Override

     public MockObject createMockImpl(final String id, final Class<?>[] interfaces) {

         final Class<?>[] interfacesPlusMock = new Class[interfaces.length + 1];

         interfacesPlusMock[0] = MockObject.class;

         for (int i = 1; i < interfacesPlusMock.length; i++) {

             if (interfaces[i - 1] == null) {

                 // then we were given a null interface

                 throw new NullPointerException("interface(s) given cannot be null");

             }

             interfacesPlusMock[i] = interfaces[i - 1];

         }

         ClassLoader cl = MockObjectFactory.class.getClassLoader();

         MockObjectImpl impl = new MockObjectImpl(id, interfaces);

         Object o = Proxy.newProxyInstance(cl, interfacesPlusMock, impl);

         MockObject m = (MockObject) o;

         return m;

     }

 }