Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.apache.hive.service.server; import java.io.IOException; import java.util.Objects; import org.apache.hadoop.hive.conf.HiveConf; import org.apache.hadoop.hive.registry.impl.ServiceInstanceBase; import org.apache.hadoop.registry.client.types.Endpoint; import org.apache.hadoop.registry.client.types.ServiceRecord; import com.google.common.base.Preconditions; public class HiveServer2Instance extends ServiceInstanceBase { private boolean isLeader; private String transportMode; private String httpEndpoint; // empty c'tor to make jackson happy public HiveServer2Instance() { } public HiveServer2Instance(final ServiceRecord srv, final String endPointName) throws IOException { super(srv, endPointName); Endpoint activeEndpoint = srv.getInternalEndpoint(HS2ActivePassiveHARegistry.ACTIVE_ENDPOINT); Endpoint passiveEndpoint = srv.getInternalEndpoint(HS2ActivePassiveHARegistry.PASSIVE_ENDPOINT); this.isLeader = activeEndpoint != null; Preconditions.checkArgument(activeEndpoint == null || passiveEndpoint == null, "Incorrect service record. Both active and passive endpoints cannot be non-null!"); this.transportMode = srv.get(HiveConf.ConfVars.HIVE_SERVER2_TRANSPORT_MODE.varname); if (transportMode.equalsIgnoreCase("http")) { this.httpEndpoint = srv.get(HiveConf.ConfVars.HIVE_SERVER2_THRIFT_HTTP_PATH.varname); } else { this.httpEndpoint = ""; } } public boolean isLeader() { return isLeader; } public String getTransportMode() { return transportMode; } public String getHttpEndpoint() { return httpEndpoint; } public void setLeader(final boolean leader) { isLeader = leader; } public void setTransportMode(final String transportMode) { this.transportMode = transportMode; } public void setHttpEndpoint(final String httpEndpoint) { this.httpEndpoint = httpEndpoint; } @Override public boolean equals(final Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } HiveServer2Instance other = (HiveServer2Instance) o; return super.equals(o) && isLeader == other.isLeader && Objects.equals(transportMode, other.transportMode) && Objects.equals(httpEndpoint, other.httpEndpoint); } @Override public int hashCode() { return super.hashCode() + Objects.hashCode(isLeader) + Objects.hashCode(transportMode) + Objects.hashCode(httpEndpoint); } @Override public String toString() { String result = "instanceId: " + getWorkerIdentity() + " isLeader: " + isLeader + " host: " + getHost() + " port: " + getRpcPort() + " transportMode: " + transportMode; if (httpEndpoint != null) { result += " httpEndpoint: " + httpEndpoint; } return result; } }