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/** | ||
* *************************************************************** | ||
* JADE - Java Agent DEvelopment Framework is a framework to develop | ||
* multi-agent systems in compliance with the FIPA specifications. | ||
* Copyright (C) 2000 CSELT S.p.A. | ||
* | ||
* GNU Lesser General Public License | ||
* | ||
* This library is free software; you can redistribute it and/or | ||
* modify it under the terms of the GNU Lesser General Public | ||
* License as published by the Free Software Foundation, | ||
* version 2.1 of the License. | ||
* | ||
* This library is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
* Lesser General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Lesser General Public | ||
* License along with this library; if not, write to the | ||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
* Boston, MA 02111-1307, USA. | ||
* ************************************************************** | ||
*/ | ||
package examples.yellowPages; | ||
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||
import jade.core.Agent; | ||
import jade.core.AID; | ||
import jade.domain.DFService; | ||
import jade.domain.FIPAException; | ||
import jade.domain.FIPANames; | ||
import jade.domain.FIPAAgentManagement.DFAgentDescription; | ||
import jade.domain.FIPAAgentManagement.ServiceDescription; | ||
import jade.domain.FIPAAgentManagement.Property; | ||
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/** | ||
This example shows how to register an application specific service in the Yellow Pages | ||
catalogue managed by the DF Agent so that other agents can dynamically discover it. | ||
In this case in particular we register a "Weather-forecast" service for | ||
Italy. The name of this service is specified as a command line argument. | ||
@author Giovanni Caire - TILAB | ||
*/ | ||
public class DFRegisterAgent extends Agent { | ||
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protected void setup() { | ||
String serviceName = "unknown"; | ||
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// Read the name of the service to register as an argument | ||
Object[] args = getArguments(); | ||
if (args != null && args.length > 0) { | ||
serviceName = (String) args[0]; | ||
} | ||
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// Register the service | ||
System.out.println("Agent "+getLocalName()+" registering service \""+serviceName+"\" of type \"weather-forecast\""); | ||
try { | ||
DFAgentDescription dfd = new DFAgentDescription(); | ||
dfd.setName(getAID()); | ||
ServiceDescription sd = new ServiceDescription(); | ||
sd.setName(serviceName); | ||
sd.setType("weather-forecast"); | ||
// Agents that want to use this service need to "know" the weather-forecast-ontology | ||
sd.addOntologies("weather-forecast-ontology"); | ||
// Agents that want to use this service need to "speak" the FIPA-SL language | ||
sd.addLanguages(FIPANames.ContentLanguage.FIPA_SL); | ||
sd.addProperties(new Property("country", "Italy")); | ||
dfd.addServices(sd); | ||
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DFService.register(this, dfd); | ||
} | ||
catch (FIPAException fe) { | ||
fe.printStackTrace(); | ||
} | ||
} | ||
} | ||
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/** | ||
* *************************************************************** | ||
* JADE - Java Agent DEvelopment Framework is a framework to develop | ||
* multi-agent systems in compliance with the FIPA specifications. | ||
* Copyright (C) 2000 CSELT S.p.A. | ||
* | ||
* GNU Lesser General Public License | ||
* | ||
* This library is free software; you can redistribute it and/or | ||
* modify it under the terms of the GNU Lesser General Public | ||
* License as published by the Free Software Foundation, | ||
* version 2.1 of the License. | ||
* | ||
* This library is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
* Lesser General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Lesser General Public | ||
* License along with this library; if not, write to the | ||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
* Boston, MA 02111-1307, USA. | ||
* ************************************************************** | ||
*/ | ||
package examples.yellowPages; | ||
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import jade.core.Agent; | ||
import jade.core.AID; | ||
import jade.domain.DFService; | ||
import jade.domain.FIPAException; | ||
import jade.domain.FIPANames; | ||
import jade.domain.FIPAAgentManagement.DFAgentDescription; | ||
import jade.domain.FIPAAgentManagement.ServiceDescription; | ||
import jade.domain.FIPAAgentManagement.SearchConstraints; | ||
import jade.util.leap.Iterator; | ||
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/** | ||
This example shows how to search for services provided by other agents | ||
and advertised in the Yellow Pages catalogue managed by the DF agent. | ||
In this case in particular we search for agents providing a | ||
"Weather-forecast" service. | ||
@author Giovanni Caire - TILAB | ||
*/ | ||
public class DFSearchAgent extends Agent { | ||
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protected void setup() { | ||
// Search for services of type "weather-forecast" | ||
System.out.println("Agent "+getLocalName()+" searching for services of type \"weather-forecast\""); | ||
try { | ||
// Build the description used as template for the search | ||
DFAgentDescription template = new DFAgentDescription(); | ||
ServiceDescription templateSd = new ServiceDescription(); | ||
templateSd.setType("weather-forecast"); | ||
template.addServices(templateSd); | ||
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SearchConstraints sc = new SearchConstraints(); | ||
// We want to receive 10 results at most | ||
sc.setMaxResults(new Long(10)); | ||
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DFAgentDescription[] results = DFService.search(this, template, sc); | ||
if (results.length > 0) { | ||
System.out.println("Agent "+getLocalName()+" found the following weather-forecast services:"); | ||
for (int i = 0; i < results.length; ++i) { | ||
DFAgentDescription dfd = results[i]; | ||
AID provider = dfd.getName(); | ||
// The same agent may provide several services; we are only interested | ||
// in the weather-forcast one | ||
Iterator it = dfd.getAllServices(); | ||
while (it.hasNext()) { | ||
ServiceDescription sd = (ServiceDescription) it.next(); | ||
if (sd.getType().equals("weather-forecast")) { | ||
System.out.println("- Service \""+sd.getName()+"\" provided by agent "+provider.getName()); | ||
} | ||
} | ||
} | ||
} | ||
else { | ||
System.out.println("Agent "+getLocalName()+" did not find any weather-forecast service"); | ||
} | ||
} | ||
catch (FIPAException fe) { | ||
fe.printStackTrace(); | ||
} | ||
} | ||
} | ||
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/** | ||
* *************************************************************** | ||
* JADE - Java Agent DEvelopment Framework is a framework to develop | ||
* multi-agent systems in compliance with the FIPA specifications. | ||
* Copyright (C) 2000 CSELT S.p.A. | ||
* | ||
* GNU Lesser General Public License | ||
* | ||
* This library is free software; you can redistribute it and/or | ||
* modify it under the terms of the GNU Lesser General Public | ||
* License as published by the Free Software Foundation, | ||
* version 2.1 of the License. | ||
* | ||
* This library is distributed in the hope that it will be useful, | ||
* but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
* Lesser General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU Lesser General Public | ||
* License along with this library; if not, write to the | ||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
* Boston, MA 02111-1307, USA. | ||
* ************************************************************** | ||
*/ | ||
package examples.yellowPages; | ||
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import jade.core.Agent; | ||
import jade.core.AID; | ||
import jade.domain.DFService; | ||
import jade.domain.FIPAException; | ||
import jade.domain.FIPANames; | ||
import jade.domain.FIPAAgentManagement.DFAgentDescription; | ||
import jade.domain.FIPAAgentManagement.ServiceDescription; | ||
import jade.domain.FIPAAgentManagement.Property; | ||
import jade.domain.FIPAAgentManagement.SearchConstraints; | ||
import jade.proto.SubscriptionInitiator; | ||
import jade.lang.acl.ACLMessage; | ||
import jade.util.leap.Iterator; | ||
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/** | ||
This example shows how to subscribe to the DF agent in order to be notified | ||
each time a given service is published in the yellow pages catalogue. | ||
In this case in particular we want to be informed whenever a service of type | ||
"Weather-forecast" for Italy becomes available. | ||
@author Giovanni Caire - TILAB | ||
*/ | ||
public class DFSubscribeAgent extends Agent { | ||
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protected void setup() { | ||
// Build the description used as template for the subscription | ||
DFAgentDescription template = new DFAgentDescription(); | ||
ServiceDescription templateSd = new ServiceDescription(); | ||
templateSd.setType("weather-forecast"); | ||
templateSd.addProperties(new Property("country", "Italy")); | ||
template.addServices(templateSd); | ||
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SearchConstraints sc = new SearchConstraints(); | ||
// We want to receive 10 results at most | ||
sc.setMaxResults(new Long(10)); | ||
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addBehaviour(new SubscriptionInitiator(this, DFService.createSubscriptionMessage(this, getDefaultDF(), template, sc)) { | ||
protected void handleInform(ACLMessage inform) { | ||
System.out.println("Agent "+getLocalName()+": Notification received from DF"); | ||
try { | ||
DFAgentDescription[] results = DFService.decodeNotification(inform.getContent()); | ||
if (results.length > 0) { | ||
for (int i = 0; i < results.length; ++i) { | ||
DFAgentDescription dfd = results[i]; | ||
AID provider = dfd.getName(); | ||
// The same agent may provide several services; we are only interested | ||
// in the weather-forcast one | ||
Iterator it = dfd.getAllServices(); | ||
while (it.hasNext()) { | ||
ServiceDescription sd = (ServiceDescription) it.next(); | ||
if (sd.getType().equals("weather-forecast")) { | ||
System.out.println("Weather-forecast service for Italy found:"); | ||
System.out.println("- Service \""+sd.getName()+"\" provided by agent "+provider.getName()); | ||
} | ||
} | ||
} | ||
} | ||
System.out.println(); | ||
} | ||
catch (FIPAException fe) { | ||
fe.printStackTrace(); | ||
} | ||
} | ||
} ); | ||
} | ||
} | ||
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/***************************************************************** | ||
JADE - Java Agent DEvelopment Framework is a framework to develop | ||
multi-agent systems in compliance with the FIPA specifications. | ||
Copyright (C) 2000 CSELT S.p.A. | ||
GNU Lesser General Public License | ||
This library is free software; you can redistribute it and/or | ||
modify it under the terms of the GNU Lesser General Public | ||
License as published by the Free Software Foundation, | ||
version 2.1 of the License. | ||
This library is distributed in the hope that it will be useful, | ||
but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
Lesser General Public License for more details. | ||
You should have received a copy of the GNU Lesser General Public | ||
License along with this library; if not, write to the | ||
Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
Boston, MA 02111-1307, USA. | ||
*****************************************************************/ | ||
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package examples.yellowPages; | ||
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import jade.core.*; | ||
import jade.core.behaviours.*; | ||
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import jade.domain.FIPAAgentManagement.*; | ||
import jade.domain.FIPAException; | ||
import jade.domain.DFService; | ||
import jade.domain.FIPANames; | ||
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/** | ||
This is an example of an agent that plays the role of a sub-df by | ||
automatically registering with a parent DF. | ||
Notice that exactly the same might be done by using the GUI of the DF. | ||
<p> | ||
This SUBDF inherits all the functionalities of the default DF, including | ||
its GUI. | ||
@author Giovanni Rimassa - Universita` di Parma | ||
@version $Date: 2003-12-03 17:57:03 +0100 (mer, 03 dic 2003) $ $Revision: 4638 $ | ||
*/ | ||
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public class SubDF extends jade.domain.df { | ||
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public void setup() { | ||
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// Input df name | ||
int len = 0; | ||
byte[] buffer = new byte[1024]; | ||
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try { | ||
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AID parentName = getDefaultDF(); | ||
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//Execute the setup of jade.domain.df which includes all the default behaviours of a df | ||
//(i.e. register, unregister,modify, and search). | ||
super.setup(); | ||
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//Use this method to modify the current description of this df. | ||
setDescriptionOfThisDF(getDescription()); | ||
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//Show the default Gui of a df. | ||
super.showGui(); | ||
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DFService.register(this,parentName,getDescription()); | ||
addParent(parentName,getDescription()); | ||
System.out.println("Agent: " + getName() + " federated with default df."); | ||
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}catch(FIPAException fe){fe.printStackTrace();} | ||
} | ||
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private DFAgentDescription getDescription() | ||
{ | ||
DFAgentDescription dfd = new DFAgentDescription(); | ||
dfd.setName(getAID()); | ||
ServiceDescription sd = new ServiceDescription(); | ||
sd.setName(getLocalName() + "-sub-df"); | ||
sd.setType("fipa-df"); | ||
sd.addProtocols(FIPANames.InteractionProtocol.FIPA_REQUEST); | ||
sd.addOntologies("fipa-agent-management"); | ||
sd.setOwnership("JADE"); | ||
dfd.addServices(sd); | ||
return dfd; | ||
} | ||
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} |