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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fd.honeycomb.vpp.common.integration;
import com.google.inject.Inject;
import io.fd.honeycomb.infra.distro.ProviderTrait;
import java.io.IOException;
import io.fd.vpp.jvpp.JVppRegistry;
import io.fd.vpp.jvpp.core.JVppCoreImpl;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import io.fd.vpp.jvpp.core.future.FutureJVppCoreFacade;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provides future API for jvpp-core plugin. Must be a singleton due to shutdown hook usage. Registers shutdown hook to
* free plugin's resources on shutdown.
*/
public final class JVppCoreProvider extends ProviderTrait<FutureJVppCore> {
private static final Logger LOG = LoggerFactory.getLogger(JVppCoreProvider.class);
@Inject
private JVppRegistry registry;
@Override
protected FutureJVppCoreFacade create() {
try {
final JVppCoreImpl jVpp = new JVppCoreImpl();
// Free jvpp-core plugin's resources on shutdown
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
LOG.info("Unloading jvpp-core plugin");
jVpp.close();
LOG.info("Successfully unloaded jvpp-core plugin");
}
});
LOG.info("Successfully loaded jvpp-core plugin");
return new FutureJVppCoreFacade(registry, jVpp);
} catch (IOException e) {
throw new IllegalStateException("Unable to open VPP management connection", e);
}
}
}
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