content: /*
   * 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 com.datastax.oss.driver.internal.core.metadata;
  
  import com.datastax.oss.driver.internal.core.adminrequest.AdminRow;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import net.jcip.annotations.ThreadSafe;
  
  @ThreadSafe
  public class PeerRowValidator {
  
    /** Returns {@code true} if the given peer row is valid, and {@code false} otherwise. */
    public static boolean isValid(@NonNull AdminRow peerRow) {
  
      boolean hasPeersRpcAddress = !peerRow.isNull("rpc_address");
      boolean hasPeersV2RpcAddress =
          !peerRow.isNull("native_address") && !peerRow.isNull("native_port");
      boolean hasRpcAddress = hasPeersRpcAddress || hasPeersV2RpcAddress;
  
      return hasRpcAddress
          && !peerRow.isNull("host_id")
          && !peerRow.isNull("data_center")
          && !peerRow.isNull("rack")
          && !peerRow.isNull("tokens")
          && !peerRow.isNull("schema_version");
    }
  }
  