config-servlet/src/main/java/org/ocpsoft/rewrite/servlet/config/Resource.java
public static Resource exists(final String resource)
   {
      return new Resource(resource) {
         @Override
         public String toString()
         {
            return "Resource.exists(\"" + resource + "\")";
         }
      };
   }
public static Resource exists(final String resource)
   {
      return new Resource(resource) {
         @Override
         public String toString()
         {
            return "Resource.exists(\"" + resource + "\")";
         }
      };
   }
Create a {@link Condition} that returns <code>true</code> if the given resource exists in the
{@link ServletContext#getResourcePaths(String)} of the current application.

<p>
The given resource path may be parameterized:
<p>
<code>
/example/{param}.html <br>
/css/{value}.css <br>
...
</code>
<p>

@param location {@link ParameterizedPattern} specifying the {@link Address} of the internal resource.

@see {@link ConfigurationRuleParameterBuilder#where(String)}