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;
  
  
  /**
   * MetricNameFactory that generates default MetricName of metrics.
   */
  public class DefaultNameFactory implements MetricNameFactory
  {
      public static final String GROUP_NAME = "org.apache.cassandra.metrics";
  
      private final String type;
      private final String scope;
  
      public DefaultNameFactory(String type)
      {
          this(type, null);
      }
  
      public DefaultNameFactory(String type, String scope)
      {
          this.type = type;
          this.scope = scope;
      }
  
      public CassandraMetricsRegistry.MetricName createMetricName(String metricName)
      {
          return createMetricName(type, metricName, scope);
      }
  
      public static CassandraMetricsRegistry.MetricName createMetricName(String type, String metricName, String scope)
      {
          return new CassandraMetricsRegistry.MetricName(GROUP_NAME, type, metricName, scope, createDefaultMBeanName(type, metricName, scope));
      }
  
      protected static String createDefaultMBeanName(String type, String name, String scope)
      {
          final StringBuilder nameBuilder = new StringBuilder();
          nameBuilder.append(GROUP_NAME);
          nameBuilder.append(":type=");
          nameBuilder.append(type);
          if (scope != null)
          {
              nameBuilder.append(",scope=");
              nameBuilder.append(scope);
          }
          if (name.length() > 0)
          {
              nameBuilder.append(",name=");
              nameBuilder.append(name);
          }
          return nameBuilder.toString();
      }
  }
  