16.2. Create a Custom Context Mapper

Procedure 16.1. Create a Custom Context Mapper

1. Implement the org.switchyard.component.common.composer.ContextMapper interface:

   public interface ContextMapper<T> {
       void mapFrom(T source, Context context) throws Exception;
       void mapTo(Context context, T target) throws Exception;
   }
   

2. Specify your implementation in your switchyard.xml file:

   <binding.xyz ...>
       <contextMapper class="com.example.MyContextMapper"/>
   </binding.xyz>
   
   

3. Alternatively, you can implement the org.switchyard.component.common.composer.RegexContextMapper interface, which adds regular expression support:

   public interface RegexContextMapper<T> extends ContextMapper<T> {
       ContextMapper<T> setIncludes(String includes);
       ContextMapper<T> setExcludes(String excludes);
       ContextMapper<T> setIncludeNamespaces(String includeNamespaces);
       ContextMapper<T> setExcludeNamespaces(String excludeNamespaces);
       boolean matches(String name);
       boolean matches(QName qname);
   }