2 * Copyright (c) 2016 Cisco and its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package io.fd.honeycomb.vppioam.impl.util;
19 import com.google.inject.Inject;
20 import com.google.inject.Provider;
21 import io.fd.honeycomb.infra.distro.ProviderTrait;
22 import java.io.IOException;
23 import io.fd.vpp.jvpp.JVppRegistry;
24 import io.fd.vpp.jvpp.ioamtrace.future.FutureJVppIoamtrace;
25 import io.fd.vpp.jvpp.ioamtrace.future.FutureJVppIoamtraceFacade;
26 import io.fd.vpp.jvpp.ioamtrace.JVppIoamtraceImpl;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
31 * Provides future API for jvpp-ioam plugin. Must be a singleton due to shutdown hook usage.
32 * Registers shutdown hook to free plugin's resources on shutdown.
34 public final class JVppIoamProvider extends ProviderTrait<FutureJVppIoamtraceFacade> {
36 private static final Logger LOG = LoggerFactory.getLogger(JVppIoamProvider.class);
39 private JVppRegistry registry;
42 protected FutureJVppIoamtraceFacade create() {
44 final JVppIoamtraceImpl jVppIoamTr = new JVppIoamtraceImpl();
45 // Free jvpp-ioam plugin's resources on shutdown
46 Runtime.getRuntime().addShutdownHook(new Thread() {
49 LOG.info("Unloading jvpp-ioam plugin");
51 LOG.info("Successfully unloaded jvpp-ioam plugin");
55 LOG.debug("Successfully loaded jvpp-ioam plugin");
56 return new FutureJVppIoamtraceFacade(registry, jVppIoamTr);
57 } catch (IOException e) {
58 throw new IllegalStateException("Unable to open VPP management connection", e);