Examples with RemoteObjectExposer org.objectweb.proactive.core.remoteobject.RemoteObjectExposer used on opensource projects

Example 1 with RemoteObjectExposer

use of org.objectweb.proactive.core.remoteobject.RemoteObjectExposer in project scheduling by ow2-proactive.

the class ROServerImpl method newClient.

/**
 * Returns a new ROConnection.
 *
 * @return a RO Connection that will enables remote calls onto the remote
 *         MBean Server
 */
public synchronized ROConnection newClient(final Object credentials) throws IOException {
    if (this.mbeanServer == null) {
        throw new IllegalStateException("Not attached to an MBean server");
    }
    // Authenticate to get the subject
    Subject subject = null;
    final JMXAuthenticator authenticator = (JMXAuthenticator) this.env.get(JMXConnectorServer.AUTHENTICATOR);
    if (authenticator != null) {
        try {
            subject = authenticator.authenticate(credentials);
        } catch (SecurityException e) {
            LOGGER.warn("Authentication failed", e);
            throw e;
        }
    }
    final int num = ++ROServerImpl.connectionNumber;
    // Create the id of the connection
    final String connectionId = ROServerImpl.createConnectionID(subject, num);
    try {
        final ROConnection connection = new ROConnection(this.mbeanServer, connectionId, this, subject, this.context);
        // Create a remote object exposer for this object
        final RemoteObjectExposer<ROConnection> roe = new RemoteObjectExposer<>(ROConnection.class.getName(), connection);
        // Use a weak reference and put it in the hash map
        this.connections.put(connectionId, new WeakReference<>(roe));
        // Get the default base uri for all remote objects
        final URI baseURI = JMXProviderUtils.getBaseURI();
        // Generate the uri (default base uri + class simple name + connection number)
        final URI uri = URIBuilder.buildURI(baseURI, ROConnection.class.getSimpleName() + num);
        // Bind under the correct uri
        return PARemoteObject.bind(roe, uri);
    } catch (Exception e) {
        final String message = "Unable to create the client connection " + connectionId;
        LOGGER.error(message, e);
        throw JMXProviderUtils.newIOException(message, e);
    }
}

Example 2 with RemoteObjectExposer

use of org.objectweb.proactive.core.remoteobject.RemoteObjectExposer in project scheduling by ow2-proactive.

the class ROServerImpl method close.

/**
 * Closes this server.
 *
 * @throws IOException if the close operation failed
 */
public synchronized void close() throws IOException {
    // First close the server
    IOException serverException = null;
    try {
        this.internalCloseRemoteObject(this.roe);
    } catch (ProActiveException e) {
        serverException = JMXProviderUtils.newIOException("Unable to close the server " + this.roe.getURL(), e);
    }
    // Even if the server was not closed properly
    // try to close all the connections
    IOException connectionCloseException = null;
    for (final Entry<String, WeakReference<RemoteObjectExposer<ROConnection>>> entry : this.connections.entrySet()) {
        String connectionId = entry.getKey();
        WeakReference<RemoteObjectExposer<ROConnection>> weakReference = entry.getValue();
        RemoteObjectExposer<ROConnection> roe = weakReference.get();
        if (roe == null) {
            this.connections.remove(connectionId);
        } else {
            try {
                this.internalCloseRemoteObject(roe);
            } catch (ProActiveException e) {
                if (connectionCloseException == null) {
                    connectionCloseException = JMXProviderUtils.newIOException("Unable to close the connection " + connectionId, e);
                }
            }
        }
    }
    // were closed (at least attempted)
    if (serverException != null) {
        throw serverException;
    }
    // If there was an exception when closing the connections re-throw it now (the first one)
    if (connectionCloseException != null) {
        throw connectionCloseException;
    }
}