package org.kuali.rice.krms.framework.engine.result;

 import java.text.SimpleDateFormat;

 import java.util.Date;

 import java.util.EventObject;

 import org.kuali.rice.krms.api.ExecutionEnvironment;

 import org.kuali.rice.krms.api.ResultEvent;

 public class BasicResult extends EventObject implements ResultEvent{

         private static final long serialVersionUID = -4124200802034785921L;

         protected String type;

         protected Date timestamp;

         protected ExecutionEnvironment environment;

         protected Boolean result = null;

         public BasicResult(String eventType, Object source, ExecutionEnvironment environment, boolean result) {

                 this(eventType, source, environment);

                 this.result = new Boolean(result);

         }

         public BasicResult(String eventType, Object source, ExecutionEnvironment environment) {

                 super(source);

                 this.type = eventType;

                 this.timestamp = new Date(); 

                 this.environment = environment;

         }

         @Override

         public String getType() {

                 return type;

         }

         @Override

         public Date getTimestamp() {

                 return new Date(timestamp.getTime()); // defensive copy

         }

         @Override

         public ExecutionEnvironment getEnvironment(){

                 return environment;

         }

         @Override

         public Boolean getResult(){

                 return result;

         }

         public String toString(){

                 StringBuffer sb = new StringBuffer();

                 SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH.mm.ss.SSS");

                 sb.append(df.format(this.getTimestamp()));

                 sb.append(" EventType: "+ getType());

                 sb.append(" ( "+ this.getSource().toString());

                 if (this.getResult() != null){

                         sb.append(" evaluated to: "+ this.getResult().toString());

                 }

                 sb.append(" )");

                 return sb.toString();

         }

 }