关于多Agent系统的研究 下载本文

是用Goal作为内部类。添加@Goal标记。

package a1;

import java.util.HashMap; import java.util.Map;

import jadex.bdiv3.BDIAgent;

import jadex.bdiv3.annotation.Belief; import jadex.bdiv3.annotation.Goal; import jadex.bdiv3.annotation.Plan; import jadex.bdiv3.annotation.Trigger; import jadex.micro.annotation.Agent; import jadex.micro.annotation.AgentBody; import jadex.micro.annotation.AgentCreated; import jadex.micro.annotation.Description; @Agent

@Description(\) // @Plans(@Plan(body=@Body(TranslatePlan.class))) publicclassTranslateEngChBDI { @Agent

protected BDIAgent translateAgent;

@Belief

protected Map wordTable;

@AgentCreated publicvoid init() {

this.wordTable = new HashMap(); // add some examples of word pairs

wordTable.put(\, \牛奶\);

wordTable.put(\, \香蕉\);

wordTable.put(\, \学校\);

wordTable.put(\, \老师\);

wordTable.put(\, \科学\); } @Goal

publicclassTranslateEngCh { protected String eword; protected String cword;

public TranslateEngCh(String eword) { this.eword = eword;

}

public String getEword() { return eword; }

publicvoid setEword(String eword) { this.eword = eword; }

public String getCword() { return cword; }

publicvoid setCword(String cword) { this.cword = cword; } }

@Plan(trigger = @Trigger(goals = TranslateEngCh.class)) publicvoid translateEngChPlan(TranslateEngCh goal) { goal.setCword(wordTable.get(goal.getEword())); }

@AgentBody

publicvoid body() {

String ewordString = \;

TranslateEngCh goal = (TranslateEngCh) translateAgent.dispatchTopLevelGoal(

new TranslateEngCh(ewordString)).get();

System.out.println(\翻译结果:\ + ewordString + \\ + goal.getCword()); } }

goal定义完成之后,是被agent来调用的。为了实现这个goal,那么就需要有Plan来支持,最终完成某个目的。 记住两点:

1. agent.dispatchTopLevelGoal();

2. 调用goal以后,需要Plan来对goal进行处理。

上述程序的结果,显示为了达成某个目标,定义Plan来处理goal。

这里我们是用了类的get和set方法来操作goal的成员变量。如何能够实现在类的外部直接对成员变量进行操作呢?

3. 使用Goal的参数和结果(optionally)

使用目标的参数和结果能够节省很多代码。并且保证目标的安全性。 主要的实现形式为:@GoalParameter 和@GoalResult

package a1;

import java.util.HashMap;