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

 import java.util.Collections;

 import java.util.EventObject;

 import java.util.Map;

 import org.apache.commons.lang.StringUtils;

 import org.joda.time.DateTime;

 import org.joda.time.format.DateTimeFormat;

 import org.joda.time.format.DateTimeFormatter;

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

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

 public class BasicResult extends EventObject implements ResultEvent {

         private static final long serialVersionUID = -4124200802034785921L;

     private static final DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy-MM-dd HH.mm.ss.SSS");

         protected String type;

         protected DateTime timestamp;

         protected ExecutionEnvironment environment;

         protected Boolean result = null;

         protected String description;

         protected Map<String, ?> resultDetails;

     public BasicResult(Map<String, ?> resultDetails, String eventType, Object source, ExecutionEnvironment environment, boolean result) {

         this(resultDetails, null, eventType, source, environment, result);

     }

     public BasicResult(Map<String, ?> resultDetails, String description, String eventType, Object source, ExecutionEnvironment environment, boolean result) {

         this(eventType, source, environment);

         this.resultDetails = resultDetails;

         this.result = new Boolean(result);

         this.description = (description == null) ? StringUtils.EMPTY : description;

     }

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

                 this(eventType, source, environment);

                 this.result = new Boolean(result);

                 this.description = description;

         }

         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 DateTime(); 

                 this.environment = environment;

         }

         @Override

         public String getType() {

                 return type;

         }

         @Override

         public DateTime getTimestamp() {

                 return timestamp;

         }

         @Override

         public ExecutionEnvironment getEnvironment(){

                 return environment;

         }

         @Override

         public Boolean getResult(){

                 return result;

         }

         @Override

         public String getDescription() {

             return description;

         }

         @Override

         public Map<String, ?> getResultDetails() {

             if (resultDetails == null) {

                 return Collections.emptyMap();

             } else {

                 return Collections.unmodifiableMap(resultDetails);

             }

         }

         public String toString(){

                 StringBuffer sb = new StringBuffer();

         sb.append(fmt.print(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();

         }

 }