| // Copyright (C) 2018 The Android Open Source Project |
| // |
| // 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 com.ericsson.gerrit.plugins.highavailability.peers.jgroups; |
| |
| import com.ericsson.gerrit.plugins.highavailability.Configuration; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.ProvisionException; |
| import com.google.inject.Singleton; |
| import java.nio.file.Path; |
| import java.util.Optional; |
| import org.jgroups.JChannel; |
| |
| @Singleton |
| public class JChannelProvider implements Provider<JChannel> { |
| private final Configuration.JGroups jgroupsConfig; |
| private final Configuration.JGroupsKubernetes jgroupsKubernetesConfig; |
| |
| @Inject |
| JChannelProvider(Configuration pluginConfiguration) { |
| this.jgroupsConfig = pluginConfiguration.jgroups(); |
| this.jgroupsKubernetesConfig = pluginConfiguration.jgroupsKubernetes(); |
| } |
| |
| @Override |
| public JChannel get() { |
| Optional<Path> protocolStack = jgroupsConfig.protocolStack(); |
| try { |
| if (protocolStack.isPresent()) { |
| return new JChannel(protocolStack.get().toString()); |
| } |
| if (jgroupsConfig.useKubernetes()) { |
| if (jgroupsKubernetesConfig.namespace() != null) { |
| System.setProperty("KUBERNETES_NAMESPACE", jgroupsKubernetesConfig.namespace()); |
| } |
| if (!jgroupsKubernetesConfig.labels().isEmpty()) { |
| System.setProperty( |
| "KUBERNETES_LABELS", String.join(",", jgroupsKubernetesConfig.labels())); |
| } |
| return new JChannel(getClass().getResource("kubernetes.xml").toString()); |
| } |
| return new JChannel(); |
| } catch (Exception e) { |
| throw new ProvisionException( |
| String.format( |
| "Unable to create a channel with protocol stack: %s", |
| protocolStack.map(Path::toString).orElse("default")), |
| e); |
| } |
| } |
| } |