code: /*
   * 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.skywalking.oap.server.analyzer.provider.trace.sampling;
  
  import lombok.Getter;
  import lombok.ToString;
  
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  @ToString
  public class SamplingPolicySettings {
  
      @Getter
      private SamplingPolicy defaultPolicy;
      private Map<String, SamplingPolicy> services;
  
      /**
       * The sample rate precision is 1/10000. 10000 means 100% sample in default. Setting this threshold about the
       * latency would make the slow trace segments sampled if they cost more time, even the sampling mechanism activated.
       * The default value is `-1`, which means would not sample slow traces. Unit, millisecond.
       */
      public SamplingPolicySettings() {
          this.defaultPolicy = new SamplingPolicy(10000, -1);
          this.services = new ConcurrentHashMap<>();
      }
  
      public void add(String service, SamplingPolicy samplingPolicy) {
          this.services.put(service, samplingPolicy);
      }
  
      public SamplingPolicy get(String service) {
          return this.services.get(service);
      }
  }
  