translateAgent.adoptPlan(new TranslateEngChPlan()).get();

} catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } }

上面代码的主要功能就是在Plan执行完成之后，其他的Plan方法会相应的根据Plan来执行。如果是成功执行，就执行PlanPassed，不成功就会根据异常的类型执行相应的方法。

3.5 Plan的上下文条件

除了Plan的生命周期方法之外，一个Plan，还有其他的先决条件或者上下文条件的方法。先决条件的方法是在Plan执行之前进行evaluated的。作为对比，上下文条件则是必须在Plan执行的时候来evalued。也就是说，如果在Plan执行的某个时候，上下文条件变成false了，那么该计划就不得不被取消了。

package a1;

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

import jadex.bdi.runtime.IPlan; import jadex.bdiv3.BDIAgent;

import jadex.bdiv3.annotation.Belief; import jadex.bdiv3.annotation.Plan;

import jadex.bdiv3.annotation.PlanAPI; import jadex.bdiv3.annotation.PlanAborted; import jadex.bdiv3.annotation.PlanBody;

import jadex.bdiv3.annotation.PlanContextCondition; import jadex.bdiv3.annotation.PlanFailed; import jadex.bdiv3.annotation.PlanPassed; import jadex.micro.annotation.Agent; import jadex.micro.annotation.AgentBody; import jadex.micro.annotation.Description; @Agent

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

protected BDIAgent translateAgent; @Belief

protectedboolean boolContext = true; @Plan

publicclassTranslateEngChPlan {

protected Map wordTable; @PlanAPI

protected IPlan plan;

@PlanContextCondition(beliefs=\) publicboolean checkContext(){ return boolContext; }

public TranslateEngChPlan() {

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\); }

@PlanBody

publicvoid translateEngCh() throws InterruptedException { // Here we only test one example

System.out.println(\); plan.wait(10000);

System.out.println(\);

System.out.println(\se is \

+ wordTable.get(\)); }

@PlanPassed

publicvoid passed(){

System.out.println(\\); } @PlanAborted

publicvoid aborted(){

System.out.println(\); } @PlanFailed

publicvoid failed(){

System.out.println(\); } }

@AgentBody

publicvoid body() { try {

translateAgent.adoptPlan(new TranslateEngChPlan());

translateAgent.waitForDelay(1000);