booktrading / buyer

turingfellow

浏览: 135090 次
性别:
来自: 福建省莆田市

最近访客更多访客>>

caibo5566

mozhenghua

157214459

niliushushi

博主相关

博客

微博

相册

留言

关于我

文章分类

社区版块

存档分类

博客分类：

jade

.net

<!--
<H3>The buyer agent that purchases books for its user.</H3>

The buyer agent comes with a user interface in which the
human user can enter its purchase book orders consisting of
a title, start price, price limit and a deadline. The agent
subsequently tries to buy the book and changes the price
according to the deadline.
-->
<agent xmlns="http://jadex.sourceforge.net/jadex"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://jadex.sourceforge.net/jadex
                      http://jadex.sourceforge.net/jadex-0.96.xsd"
    name="Buyer" package="jadex.examples.booktrading.buyer">

<imports>
  <import>jadex.examples.booktrading.common.*</import>
  <import>jadex.adapter.fipa.SFipa</import>
  <import>java.util.*</import>
  <import>jadex.runtime.impl.*</import>
  <import>jadex.planlib.*</import>
</imports>

<beliefs>
  <beliefset name="orders" class="Order">
   <facts evaluationmode="dynamic">
    select $g.getParameter("order").getValue()
    from IRGoal $g in $goalbase.getGoals("purchase_book")
   </facts>
  </beliefset>

  <belief name="time" class="long" updaterate="1000">
   <fact>System.currentTimeMillis()</fact>
  </belief>

  <belief name="initial_orders" class="Order[]" exported="true"/>

  <beliefset name="negotiation_reports" class="NegotiationReport"/>

  <belief name="gui" class="Gui"/>
</beliefs>

<goals>
  
  <achievegoal name="purchase_book" recur="true" recurdelay="10000">
   <parameter name="order" class="Order">
    <bindingoptions>$beliefbase.initial_orders</bindingoptions>
   </parameter>
   <unique/>
   <creationcondition>$beliefbase.initial_orders!=null</creationcondition>
   <targetcondition>Order.DONE.equals($goal.order.getState())</targetcondition>
   <failurecondition>$beliefbase.time > $goal.order.getDeadline().getTime()</failurecondition>
  </achievegoal>

  <achievegoalref name="df_search">
   <concrete ref="dfcap.df_search"/>
  </achievegoalref>

  <achievegoalref name="cnp_initiate">
   <concrete ref="procap.cnp_initiate"/>
  </achievegoalref>

  <querygoalref name="cnp_evaluate_proposals">
   <concrete ref="procap.cnp_evaluate_proposals"/>
  </querygoalref>
</goals>

<plans>
  <plan name="purchase_book_plan">
   <parameter name="order" class="Order">
    <goalmapping ref="purchase_book.order"/>
   </parameter>
   <body class="PurchaseBookPlan" />
   
   <trigger>
    <goal ref="purchase_book"/>
   </trigger>
  </plan>

  <plan name="evaluate_proposals_plan">
   <parameter name="cfp" class="Object">
    <goalmapping ref="cnp_evaluate_proposals.cfp"/>
   </parameter>
   <parameter name="cfp_info" class="Object" optional="true">
    <goalmapping ref="cnp_evaluate_proposals.cfp_info"/>
   </parameter>
   <parameterset name="proposals" class="Object">
    <goalmapping ref="cnp_evaluate_proposals.proposals"/>
   </parameterset>
   <parameterset name="history" class="NegotiationRecord" optional="true">
    <goalmapping ref="cnp_evaluate_proposals.history"/>
   </parameterset>
   <parameterset name="acceptables" class="Object" direction="out">
    <goalmapping ref="cnp_evaluate_proposals.acceptables"/>
   </parameterset>
   <body class="EvaluateProposalsPlan" />
   <trigger>
    <goal ref="cnp_evaluate_proposals"/>
   </trigger>
  </plan>
</plans>

<expressions>
  <expression name="search_reports">
   select NegotiationReport $nr from $beliefbase.negotiation_reports
   where $nr.getOrder().equals($order)
   order by $nr.getTime()
   <parameter name="$order" class="Order"/>
  </expression>
</expressions>

<properties>
  <property name="service_seller">
   SFipa.createAgentDescription(null, SFipa.createServiceDescription(null, "service_seller", null))
  </property>
  
  
</properties>

<configurations>
  <configuration name="default">
   <beliefs>
    <initialbelief ref="gui">
     <fact>new Gui($agent.getExternalAccess(), true)</fact>
    </initialbelief>
   </beliefs>
   <goals>
    
   </goals>
  </configuration>
</configurations>

</agent>package jadex.examples.booktrading.buyer;

import jadex.planlib.ParticipantProposal;
import jadex.runtime.Plan;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

/**
* Evaluate the received proposals.
*/
public class EvaluateProposalsPlan extends Plan
{
/**
* The plan body.
*/
public void body()
{
// Get order properties and calculate acceptable price.
int acceptable_price = ((Integer)getParameter("cfp_info").getValue()).intValue();

  ParticipantProposal[] proposals = (ParticipantProposal[])getParameterSet("proposals").getValues();

  // Determine acceptables
  List accs = new ArrayList();
  for(int i=0; i<proposals.length; i++)
  {
   if(((Integer)proposals[i].getProposal()).intValue() <= acceptable_price)
    accs.add(proposals[i]);
  }

  // Sort acceptables by price.
  if(accs.size()>1)
  {
   Collections.sort(accs, new Comparator()
   {
    public int compare(Object arg0, Object arg1) {
     return ((Comparable) ((ParticipantProposal)arg0).getProposal())
      .compareTo(((ParticipantProposal)arg1).getProposal());
    }
   });
  }

if(accs.size()>0)
getParameterSet("acceptables").addValue(accs.get(0));
}
}package jadex.examples.booktrading.buyer;

import jadex.adapter.fipa.AgentDescription;
import jadex.adapter.fipa.AgentIdentifier;
import jadex.examples.booktrading.common.NegotiationReport;
import jadex.examples.booktrading.common.Order;
import jadex.planlib.NegotiationRecord;
import jadex.planlib.ParticipantProposal;
import jadex.planlib.Selector;
import jadex.runtime.GoalFailureException;
import jadex.runtime.IGoal;
import jadex.runtime.Plan;
import jadex.util.SUtil;

import java.util.Comparator;
import java.util.Date;

/**
* The plan tries to purchase a book.
*/
public class PurchaseBookPlan extends Plan
{
//-------- methods --------

/**
* The body method is called on the
* instatiated plan instance from the scheduler.
*/
public void body()
{
  // Get order properties and calculate acceptable price.
  Order order = (Order)getParameter("order").getValue();
  double time_span = order.getDeadline().getTime() - order.getStartTime();
  double elapsed_time = System.currentTimeMillis() - order.getStartTime();
  double price_span = order.getLimit() - order.getStartPrice();
  int acceptable_price = (int)(price_span * elapsed_time / time_span)
   + order.getStartPrice();

  // Find available seller agents.
  IGoal df_search = createGoal("df_search");
  df_search.getParameter("description").setValue(getPropertybase().getProperty("service_seller"));
  dispatchSubgoalAndWait(df_search);
  AgentDescription[] result = (AgentDescription[])df_search
   .getParameterSet("result").getValues();
  if(result.length == 0)
   fail();

  AgentIdentifier[] sellers = new AgentIdentifier[result.length];
  for(int i = 0; i < result.length; i++)
   sellers[i] = result[i].getName();
  //System.out.println("found: "+SUtil.arrayToString(sellers));

  // Initiate a call-for-proposal.
  IGoal cnp = createGoal("cnp_initiate");
  cnp.getParameter("cfp").setValue(order.getTitle());
  cnp.getParameter("cfp_info").setValue(new Integer(acceptable_price));
  cnp.getParameterSet("receivers").addValues(sellers);
  try
  {
   dispatchSubgoalAndWait(cnp);

   NegotiationRecord rec = (NegotiationRecord)cnp.getParameterSet("history").getValues()[0];
   generateNegotiationReport(order, rec, acceptable_price);

   // If contract-net succeeds, store result in order object.
   order.setExecutionPrice((Integer)(cnp.getParameterSet("result").getValues()[0]));
   order.setExecutionDate(new Date());
  }
  catch(GoalFailureException e)
  {
   NegotiationRecord rec = (NegotiationRecord)cnp.getParameterSet("history").getValues()[0];
   generateNegotiationReport(order, rec, acceptable_price);

   fail();
  }
  //System.out.println("result: "+cnp.getParameter("result").getValue());
}

/**
* Generate and add a negotiation report.
*/
protected void generateNegotiationReport(Order order, NegotiationRecord rec, double acceptable_price)
{
  String report = "Accepable price: "+acceptable_price+", proposals: ";
  ParticipantProposal[] proposals = rec.getProposals();
  for(int i=0; i<proposals.length; i++)
  {
   report += proposals[i].getProposal()+"-"+proposals[i].getParticipant().getLocalName();
   if(i+1<proposals.length)
    report += ", ";
  }
  NegotiationReport nr = new NegotiationReport(order, report, rec.getStarttime());
  //System.out.println("REPORT of agent: "+getAgentName()+" "+report);
  getBeliefbase().getBeliefSet("negotiation_reports").addFact(nr);
}
}

分享到：

booktrading / common | tomcat的context说明书

2011-03-29 23:13
浏览 843
评论(0)
分类:企业架构
查看更多

发表评论

您还没有登录,请您登录后再发表评论

最近访客更多访客>>

博主相关

文章分类

社区版块

存档分类

最新评论