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.api.core.metrics;
  
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableMap;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import java.util.Map;
  
  /** See {@code reference.conf} for a description of each metric. */
  public enum DefaultSessionMetric implements SessionMetric {
    BYTES_SENT("bytes-sent"),
    BYTES_RECEIVED("bytes-received"),
    CONNECTED_NODES("connected-nodes"),
    CQL_REQUESTS("cql-requests"),
    CQL_CLIENT_TIMEOUTS("cql-client-timeouts"),
    THROTTLING_DELAY("throttling.delay"),
    THROTTLING_QUEUE_SIZE("throttling.queue-size"),
    THROTTLING_ERRORS("throttling.errors"),
    CQL_PREPARED_CACHE_SIZE("cql-prepared-cache-size"),
    ;
  
    private static final Map<String, DefaultSessionMetric> BY_PATH = sortByPath();
  
    private final String path;
  
    DefaultSessionMetric(String path) {
      this.path = path;
    }
  
    @NonNull
    @Override
    public String getPath() {
      return path;
    }
  
    @NonNull
    public static DefaultSessionMetric fromPath(@NonNull String path) {
      DefaultSessionMetric metric = BY_PATH.get(path);
      if (metric == null) {
        throw new IllegalArgumentException("Unknown session metric path " + path);
      }
      return metric;
    }
  
    private static Map<String, DefaultSessionMetric> sortByPath() {
      ImmutableMap.Builder<String, DefaultSessionMetric> result = ImmutableMap.builder();
      for (DefaultSessionMetric value : values()) {
        result.put(value.getPath(), value);
      }
      return result.build();
    }
  }
  