2 * Copyright (c) 2016 Cisco and/or 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.vpp.common.integration;
19 import com.google.inject.Inject;
20 import io.fd.honeycomb.infra.distro.ProviderTrait;
21 import java.io.IOException;
22 import io.fd.vpp.jvpp.JVppRegistry;
23 import io.fd.vpp.jvpp.core.JVppCoreImpl;
24 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
25 import io.fd.vpp.jvpp.core.future.FutureJVppCoreFacade;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
30 * Provides future API for jvpp-core plugin. Must be a singleton due to shutdown hook usage. Registers shutdown hook to
31 * free plugin's resources on shutdown.
33 public final class JVppCoreProvider extends ProviderTrait<FutureJVppCore> {
35 private static final Logger LOG = LoggerFactory.getLogger(JVppCoreProvider.class);
38 private JVppRegistry registry;
41 protected FutureJVppCoreFacade create() {
43 final JVppCoreImpl jVpp = new JVppCoreImpl();
44 // Free jvpp-core plugin's resources on shutdown
45 Runtime.getRuntime().addShutdownHook(new Thread() {
49 LOG.info("Unloading jvpp-core plugin");
51 LOG.info("Successfully unloaded jvpp-core plugin");
55 LOG.info("Successfully loaded jvpp-core plugin");
56 return new FutureJVppCoreFacade(registry, jVpp);
57 } catch (IOException e) {
58 throw new IllegalStateException("Unable to open VPP management connection", e);