package net.sf.cglib.transform.impl;
   
   import net.sf.cglib.transform.*;
   import java.util.*;
   import net.sf.cglib.core.TypeUtils;
   import org.objectweb.asm.Type;
   
   public class ExampleTask extends AbstractTransformTask {
       private List properties = new ArrayList();
      private String fieldSuffix = "";
      private ClassTransformer transformer;
  
      protected ClassTransformer getClassTransformer(String name) {
          return transformer;
      }
      
      protected void beforeExecute() {
          ClassTransformer t1 = new AccessFieldTransformer(new AccessFieldTransformer.Callback() {
              public String getPropertyName(Type owner, String fieldName) {
                  return fieldName + fieldSuffix;
              }
          });
          int size = properties.size();
          String[] names = new String[size];
          Type[] types = new Type[size];
          for (int i = 0; i < size; i++) {
              NewProperty p = (NewProperty)properties.get(i);
              names[i] = p.name;
              types[i] = TypeUtils.parseType(p.type);
          }
          ClassTransformer t2 = new AddPropertyTransformer(names, types);
          transformer = new ClassTransformerChain(new ClassTransformer[]{ t1, t2 });
      }
  
      public static class NewProperty {
          private String name;
          private String type;
  
          public void setName(String name) {
              this.name = name;
          }
  
          public void setType(String type) {
              this.type = type;
          }
      }
  
      public void addNewproperty(NewProperty prop) {
          properties.add(prop);
      }
  
      public void setFieldsuffix(String fieldSuffix) {
          this.fieldSuffix = fieldSuffix;
      }
  }