[JXTA] Comment récupérer les pipe advertisments des autres peers
salut tout le monde!
je veux créer un peer qui découvre touts les autres peers qui se trouvent autour de lui et leur envoie un message.
mon problème c'est que j'arrive pas a récupérer le pipe advertisment des autres peers à l'issue d'une requête descovery
les autres peers crient un input pipe et attendent un message
pour le moment je travaille seulement sur deux peer a et b
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| public class PeerB implements Runnable, DiscoveryListener ,PipeMsgListener{
static PeerGroup netPeerGroup = null;
private DiscoveryService discovery;
private transient NetworkManager manager;
private PipeService pipeService;
private PipeAdvertisement pipeAdvIP;
private InputPipe pipeIn = null;
private void startJxta() {
try {
manager = new NetworkManager(NetworkManager.ConfigMode.EDGE,
"peerb", new File(new File(".cache"), "peerb").toURI());
manager.startNetwork();
} catch (Exception e) {
e.printStackTrace();
System.exit(-1);
}
//Get the NetPeerGroup
PeerGroup netPeerGroup = manager.getNetPeerGroup();
// get the discovery service
discovery = netPeerGroup.getDiscoveryService();
pipeService = netPeerGroup.getPipeService();
pipeAdvIP = (PipeAdvertisement)AdvertisementFactory.newAdvertisement(PipeAdvertisement.getAdvertisementType());
pipeAdvIP = (PipeAdvertisement)AdvertisementFactory.newAdvertisement(PipeAdvertisement.getAdvertisementType());
pipeAdvIP.setName("pipeAdvB");
pipeAdvIP.setPipeID((ID) IDFactory.newPipeID(netPeerGroup.getPeerGroupID()));
pipeAdvIP.setType(PipeService.PropagateType);
System.out.println("creation d'un input pipe*****************");
try {
pipeIn = pipeService.createInputPipe(pipeAdvIP, this);
} catch (Exception e) {
System.out.println("erreur de creation de input pipe");
}
try {
discovery.publish(pipeAdvIP);
discovery.remotePublish(pipeAdvIP);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Erreur de publication");
}
}
public void run() {
while (true) {
try {
Thread.sleep(60 * 1000);
} catch(Exception e) {}
} //end while
}
public void discoveryEvent(DiscoveryEvent ev) {
}
public void pipeMsgEvent(PipeMsgEvent event) {
System.out.println ("un message a ete recu ");
}
static public void main(String args[]) {
PeerB peerb = new PeerB();
peerb.startJxta();
peerb.run();
}
} |
quant au peer a
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| public class PeerA implements Runnable, DiscoveryListener ,OutputPipeListener, PipeMsgListener{
static PeerGroup netPeerGroup = null;
private DiscoveryService discovery;
private transient NetworkManager manager;
private PipeService pipeService;
private PipeAdvertisement pipeAdvIP,pipeAdvOP;
private InputPipe pipeIn = null;
private void startJxta() {
try {
manager = new NetworkManager(NetworkManager.ConfigMode.EDGE,
"peera", new File(new File(".cache"), "peera").toURI());
manager.startNetwork();
} catch (Exception e) {
e.printStackTrace();
System.exit(-1);
}
//Get the NetPeerGroup
PeerGroup netPeerGroup = manager.getNetPeerGroup();
// get the discovery service
discovery = netPeerGroup.getDiscoveryService();
pipeService = netPeerGroup.getPipeService();
pipeAdvIP = (PipeAdvertisement)AdvertisementFactory.newAdvertisement(PipeAdvertisement.getAdvertisementType());
pipeAdvIP.setName("pipeAdvA");
pipeAdvIP.setPipeID((ID) IDFactory.newPipeID(netPeerGroup.getPeerGroupID()));
pipeAdvIP.setType(PipeService.UnicastType);
System.out.println("creation d'un input pipe");
try {
pipeIn = pipeService.createInputPipe(pipeAdvIP, this);
} catch (Exception e) {
System.out.println("erreur de creation de input pipe");
}
try {
discovery.publish(pipeAdvIP);
discovery.remotePublish(pipeAdvIP);
} catch (Exception e) {
e.printStackTrace();
System.out.println("Erreur de publication");
}
}
public void run() {
try {
// Add ourselves as a DiscoveryListener for DiscoveryResponse events
discovery.addDiscoveryListener(this);
while (true) {
System.out.println("Sending a Discovery Message");
// look for any peer
discovery.getRemoteAdvertisements(null, DiscoveryService.ADV,
null, null,
5);
// wait a bit before sending next discovery message
try {
Thread.sleep(10 * 1000);
} catch(Exception e) {}
} //end while
} catch(Exception e) {
e.printStackTrace();
}
}
public void discoveryEvent(DiscoveryEvent ev) {
DiscoveryResponseMsg res = ev.getResponse();
System.out.println("un advertisment a ete recu");
try
{
FileWriter file = new FileWriter("src/pipeadv.xml");
MimeMediaType mimeType = new MimeMediaType("text/xml");
StructuredTextDocument document = (StructuredTextDocument) res.getDocument(mimeType);
// Output the XML for the advertisement to the file.
document.sendToWriter(file);
file.close();
}
catch (Exception e)
{e.printStackTrace();
}
try {
FileInputStream is = new FileInputStream("src/pipeadv.xml");
pipeAdvOP = (PipeAdvertisement) AdvertisementFactory.newAdvertisement(new MimeMediaType("text/xml"), is);
is.close();
System.out.println("creation d'un OutputPipe***************");
pipeService.createOutputPipe(pipeAdvOP, this);
} catch (java.io.IOException e1) {
System.out.println("Echec de lecture de pipe advertisement***********");
e1.printStackTrace();
System.exit(-1);
}
}
public void outputPipeEvent(OutputPipeEvent event) {
System.out.println(" Got an output pipe event");
Message msg = null;
try {
OutputPipe op = event.getOutputPipe();
System.out.println("Sending message");
msg = new Message();
Date date = new Date(System.currentTimeMillis());
StringMessageElement sme = new StringMessageElement("pipeListenerMessage", date.toString() , null);
msg.addMessageElement(null, sme);
op.send(msg);
op.close();
} catch (IOException e) {
System.out.println("failed to send message");
e.printStackTrace();
System.exit(-1);
}
System.out.println("message sent");
}
public void pipeMsgEvent(PipeMsgEvent event) {
}
static public void main(String args[]) {
PeerA peera = new PeerA();
peera.startJxta();
peera.run();
}
} |
comment extraire le pipe advertisement a partir du message recu dans la méthode discoveryEvent()
et merci a tous
