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 org.apache.cassandra.metrics;
  
  import com.codahale.metrics.Histogram;
  
  import static org.apache.cassandra.metrics.CassandraMetricsRegistry.Metrics;
  
  /**
   * Captures metrics related to Mutual TLS certificate expiration and certificate age for client
   * and internode connections
   */
  public class MutualTlsMetrics
  {
      public static final String TYPE_NAME = "MutualTls";
      private static final MetricNameFactory factory = new DefaultNameFactory(TYPE_NAME);
  
      public final static MutualTlsMetrics instance = new MutualTlsMetrics();
  
      /**
       * Histogram of expiration days for client certificates
       */
      public final Histogram clientCertificateExpirationDays;
  
      /**
       * Histogram of expiration days for internode certificates
       */
      public final Histogram internodeCertificateExpirationDays;
  
      public MutualTlsMetrics()
      {
          clientCertificateExpirationDays = Metrics.histogram(factory.createMetricName("ClientCertificateExpirationDays"), true);
          internodeCertificateExpirationDays = Metrics.histogram(factory.createMetricName("InternodeCertificateExpirationDays"), true);
      }
  }
  