diff options
Diffstat (limited to 'vpp-common/minimal-distribution/src/main/java/io/fd/honeycomb/vpp/distro/JVppCoreProvider.java')
-rw-r--r-- | vpp-common/minimal-distribution/src/main/java/io/fd/honeycomb/vpp/distro/JVppCoreProvider.java | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/vpp-common/minimal-distribution/src/main/java/io/fd/honeycomb/vpp/distro/JVppCoreProvider.java b/vpp-common/minimal-distribution/src/main/java/io/fd/honeycomb/vpp/distro/JVppCoreProvider.java new file mode 100644 index 000000000..41f7b1335 --- /dev/null +++ b/vpp-common/minimal-distribution/src/main/java/io/fd/honeycomb/vpp/distro/JVppCoreProvider.java @@ -0,0 +1,61 @@ +/* + * 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.distro; + +import com.google.inject.Inject; +import io.fd.honeycomb.infra.distro.ProviderTrait; +import java.io.IOException; +import org.openvpp.jvpp.JVppRegistry; +import org.openvpp.jvpp.core.JVppCoreImpl; +import org.openvpp.jvpp.core.future.FutureJVppCore; +import org.openvpp.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); + } + } +} |