Examples with ServiceLocationException ch.ethz.iks.slp.ServiceLocationException used on opensource projects

Example 1 with ServiceLocationException

use of ch.ethz.iks.slp.ServiceLocationException in project ecf by eclipse.

the class JSLPDiscoveryJob method run.

/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
	 */
protected IStatus run(final IProgressMonitor monitor) {
    Assert.isNotNull(monitor);
    try {
        final Map availableServices = Activator.getDefault().getLocator().getServiceURLs();
        final Map removedServices = new HashMap(services);
        for (final Iterator itr = availableServices.entrySet().iterator(); itr.hasNext() && !monitor.isCanceled(); ) {
            final Map.Entry entry = (Map.Entry) itr.next();
            final ServiceURL url = (ServiceURL) entry.getKey();
            // do we know the service already?
            if (removedServices.containsKey(url)) {
                removedServices.remove(url);
            } else {
                // we don't know the service, so we need to create the
                final ServicePropertiesAdapter spa = new ServicePropertiesAdapter((List) entry.getValue());
                final String serviceName = spa.getServiceName() == null ? url.toString() : spa.getServiceName();
                final IServiceInfo serviceInfo = new JSLPServiceInfo(serviceName, new ServiceURLAdapter(url), spa.getPriority(), spa.getWeight(), spa);
                services.put(url, serviceInfo);
                discoveryContainer.fireServiceTypeDiscovered(serviceInfo.getServiceID().getServiceTypeID());
                discoveryContainer.fireServiceDiscovered(serviceInfo);
            }
            monitor.worked(1);
        }
        // at this point removedServices only contains stale services
        for (final Iterator itr = removedServices.entrySet().iterator(); itr.hasNext() && !monitor.isCanceled(); ) {
            final Map.Entry entry = (Map.Entry) itr.next();
            final Object key = entry.getKey();
            final IServiceInfo value = (IServiceInfo) entry.getValue();
            discoveryContainer.fireServiceUndiscovered(value);
            services.remove(key);
            monitor.worked(1);
        }
    } catch (final ServiceLocationException e) {
        // TODO-mkuppe if the advertiser is gone, we run into this exception
        // but we have to let the listeners know about the gone services
        // too
        // $NON-NLS-1$
        Trace.catching(Activator.PLUGIN_ID, JSLPDebugOptions.EXCEPTIONS_CATCHING, this.getClass(), "run", e);
    }
    // check if the JSLPDiscoveryContainer has been disconnected or disposed
    if (discoveryContainer.getConnectedID() != null) {
        this.schedule(JSLPDiscoveryContainer.REDISCOVER);
    }
    return Status.OK_STATUS;
}

Example 2 with ServiceLocationException

use of ch.ethz.iks.slp.ServiceLocationException in project ecf by eclipse.

the class JSLPDiscoveryContainer method registerService.

/* (non-Javadoc)
	 * @see org.eclipse.ecf.discovery.IDiscoveryContainerAdapter#registerService(org.eclipse.ecf.discovery.IServiceInfo)
	 */
public void registerService(IServiceInfo aServiceInfo) {
    Assert.isNotNull(aServiceInfo);
    try {
        JSLPServiceInfo si = new JSLPServiceInfo(aServiceInfo);
        IServiceTypeID stid = si.getServiceID().getServiceTypeID();
        Activator.getDefault().getAdvertiser().register(si.getServiceURL(), Arrays.asList(stid.getScopes()), new ServicePropertiesAdapter(si).toProperties());
    } catch (ServiceLocationException e) {
        // $NON-NLS-1$
        Trace.catching(Activator.PLUGIN_ID, JSLPDebugOptions.EXCEPTIONS_CATCHING, this.getClass(), "registerService(IServiceInfo)", e);
        throw new ECFRuntimeException(e.getMessage(), e);
    }
}

Example 3 with ServiceLocationException

use of ch.ethz.iks.slp.ServiceLocationException in project ecf by eclipse.

the class SLPCore method init.

protected static void init() {
    if (isInitialized) {
        return;
    }
    isInitialized = true;
    platform.logDebug("jSLP is running on the following interfaces: " + java.util.Arrays.asList(myIPs));
    platform.logDebug("jSLP is using port: " + SLP_PORT);
    String[] daAddresses = CONFIG.getDaAddresses();
    if (daAddresses == null) {
        if (noDiscovery) {
            throw new IllegalArgumentException("Configuration 'net.slp.noDaDiscovery=true' requires a non-empty list of preconfigured DAs");
        }
    } else {
        try {
            // process the preconfigured DAs
            final ServiceRequest req = new ServiceRequest(new ServiceType(SLP_DA_TYPE), null, null, null);
            req.port = SLP_PORT;
            for (int i = 0; i < daAddresses.length; i++) {
                try {
                    req.address = InetAddress.getByName(daAddresses[i]);
                    DAAdvertisement daa = (DAAdvertisement) sendMessage(req, true);
                    String[] scopes = (String[]) daa.scopeList.toArray(new String[daa.scopeList.size()]);
                    for (int j = 0; j < scopes.length; j++) {
                        platform.logDebug("jSLP is adding DA, " + daAddresses[i] + " for the Scope, " + scopes[j]);
                        SLPUtils.addValue(dAs, scopes[i].toLowerCase(), daAddresses[i]);
                    }
                } catch (ServiceLocationException e) {
                    platform.logWarning("Error communitcating with " + daAddresses[i], e);
                } catch (UnknownHostException e) {
                    platform.logWarning("Unknown net.slp.DAAddresses address: " + daAddresses[i], e);
                }
            }
        } catch (IllegalArgumentException ise) {
            platform.logDebug("May never happen", ise);
        }
    }
    if (!noDiscovery) {
        // perform an initial lookup
        try {
            List scopes = new ArrayList();
            scopes.add("default");
            daLookup(scopes);
        } catch (Exception e) {
            platform.logError("Exception in initial DA lookup", e);
        }
    }
}

Example 4 with ServiceLocationException

use of ch.ethz.iks.slp.ServiceLocationException in project ecf by eclipse.

the class SLPCore method setupReceiverThread.

/**
 * setup a new receiver thread for a socket.
 *
 * @param socket
 *            the <code>DatagramSocket</code> for which the receiver
 *            thread is set up.
 * @param minLifetime
 *            the minimum lifetime of the receiver thread.
 */
private static void setupReceiverThread(final DatagramSocket socket, final long minLifetime, final SLPMessage msg) {
    new Thread() {

        public void run() {
            // prepare an empty datagram for receiving
            DatagramPacket packet;
            byte[] bytes = new byte[SLPCore.CONFIG.getMTU()];
            // calculate the end of lifetime
            long timeout = System.currentTimeMillis() + minLifetime + 1000;
            // while lifetime is not expired
            while (System.currentTimeMillis() < timeout) {
                // set socket timeout
                try {
                    long l = timeout - System.currentTimeMillis();
                    int soTimeout = (int) (l < 0 ? 1 : l);
                    socket.setSoTimeout(soTimeout);
                } catch (SocketException e1) {
                    platform.logError("Exception in mcast receiver thread", e1);
                    return;
                }
                packet = new DatagramPacket(bytes, bytes.length);
                try {
                    // try to receive a datagram packet
                    socket.receive(packet);
                } catch (InterruptedIOException iioe) {
                    continue;
                } catch (IOException e) {
                    platform.logDebug(e.getMessage(), e);
                    return;
                }
                final DataInputStream in = new DataInputStream(new ByteArrayInputStream(packet.getData()));
                try {
                    // and delegate it to the SLPCore
                    handleMessage(SLPMessage.parse(packet.getAddress(), packet.getPort(), in, false));
                } catch (ProtocolException pe) {
                    // Overflow, try to use TCP
                    try {
                        msg.address = packet.getAddress();
                        msg.port = packet.getPort();
                        msg.multicast = false;
                        handleMessage(sendMessageTCP(msg));
                    } catch (ServiceLocationException e) {
                    }
                } catch (ServiceLocationException e) {
                    platform.logDebug(e.getMessage(), e);
                }
            }
            // close the socket
            socket.close();
        }
    }.start();
}

Example 5 with ServiceLocationException

use of ch.ethz.iks.slp.ServiceLocationException in project ecf by eclipse.

the class SLPCore method sendMessageTCP.

/**
 * send a unicast message over TCP.
 *
 * @param msg
 *            the message.
 * @return the reply.
 * @throws ServiceLocationException
 *             in case of network errors.
 */
static ReplyMessage sendMessageTCP(final SLPMessage msg) throws ServiceLocationException {
    try {
        if (msg.xid == 0) {
            msg.xid = nextXid();
        }
        Socket socket = new Socket(msg.address, msg.port);
        socket.setSoTimeout(CONFIG.getTCPTimeout());
        DataOutputStream out = new DataOutputStream(socket.getOutputStream());
        DataInputStream in = new DataInputStream(socket.getInputStream());
        out.write(msg.getBytes());
        final ReplyMessage reply = (ReplyMessage) SLPMessage.parse(msg.address, msg.port, in, true);
        socket.close();
        return reply;
    } catch (Exception e) {
        throw new ServiceLocationException(ServiceLocationException.NETWORK_ERROR, e.getMessage());
    }
}