package com.google.code.beanmatchers;
   
   import static com.google.code.beanmatchers.BeanOperations.instantiateBean;
   
   import org.hamcrest.Description;
   import org.hamcrest.Matcher;
   import org.hamcrest.TypeSafeMatcher;
   
   public class InstantiatingMatcherDecorator<T> extends TypeSafeMatcher<Class<T>> {
  
    private final Matcher<T> delegateMatcher;
  
    public InstantiatingMatcherDecorator(Matcher<T> matcher) {
      this.delegateMatcher = matcher;
    }
  
    @Override
    protected boolean matchesSafely(Class<T> beanType) {
      T beanInstance = instantiateBean(beanType);
      return delegateMatcher.matches(beanInstance);
    }
  
    @Override
    protected void describeMismatchSafely(Class<T> beanType, Description mismatchDescription) {
      T beanInstance = instantiateBean(beanType);
      delegateMatcher.describeMismatch(beanInstance, mismatchDescription);
    }
  
    public void describeTo(Description description) {
      delegateMatcher.describeTo(description);
    }
  }