Examples with SessionReference org.opendaylight.protocol.pcep.impl.PCEPPeerRegistry.SessionReference used on opensource projects

Example 1 with SessionReference

use of org.opendaylight.protocol.pcep.impl.PCEPPeerRegistry.SessionReference in project bgpcep by opendaylight.

the class PCEPSessionNegotiator method startNegotiation.

@Override
protected void startNegotiation() throws ExecutionException {
    final Object lock = this;
    LOG.debug("Bootstrap negotiation for channel {} started", this.channel);
    /*
         * We have a chance to see if there's a client session already
         * registered for this client.
         */
    final byte[] clientAddress = ((InetSocketAddress) this.channel.remoteAddress()).getAddress().getAddress();
    final PCEPPeerRegistry sessionReg = this.negFactory.getSessionRegistry();
    synchronized (lock) {
        if (sessionReg.getSessionReference(clientAddress).isPresent()) {
            final byte[] serverAddress = ((InetSocketAddress) this.channel.localAddress()).getAddress().getAddress();
            if (COMPARATOR.compare(serverAddress, clientAddress) > 0) {
                final Optional<SessionReference> sessionRefMaybe = sessionReg.removeSessionReference(clientAddress);
                try {
                    if (sessionRefMaybe.isPresent()) {
                        sessionRefMaybe.get().close();
                    }
                } catch (final Exception e) {
                    LOG.error("Unexpected failure to close old session", e);
                }
            } else {
                negotiationFailed(new IllegalStateException("A conflicting session for address " + ((InetSocketAddress) this.channel.remoteAddress()).getAddress() + " found."));
                return;
            }
        }
        final Short sessionId = sessionReg.nextSession(clientAddress);
        final AbstractPCEPSessionNegotiator n = this.negFactory.createNegotiator(this.nfd, this.promise, this.channel, sessionId);
        sessionReg.putSessionReference(clientAddress, new SessionReference() {

            @Override
            public void close() throws ExecutionException {
                try {
                    sessionReg.releaseSession(clientAddress, sessionId);
                } finally {
                    PCEPSessionNegotiator.this.channel.close();
                }
            }

            @Override
            public Short getSessionId() {
                return sessionId;
            }
        });
        this.channel.closeFuture().addListener((ChannelFutureListener) future -> {
            synchronized (lock) {
                sessionReg.removeSessionReference(clientAddress);
            }
        });
        LOG.info("Replacing bootstrap negotiator for channel {}", this.channel);
        this.channel.pipeline().replace(this, "negotiator", n);
        n.startNegotiation();
    }
}