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.meter.analyzer.dsl;
  
  import java.util.concurrent.TimeUnit;
  
  /**
   * Help to build the {@link SampleFamily}.
   */
  public class SampleFamilyBuilder {
      private final Sample[] samples;
      private final SampleFamily.RunningContext context;
  
      SampleFamilyBuilder(Sample[] samples, SampleFamily.RunningContext context) {
          this.samples = samples;
          this.context = context;
      }
  
      public static SampleFamilyBuilder newBuilder(Sample... samples) {
          return new SampleFamilyBuilder(samples, SampleFamily.RunningContext.instance());
      }
  
      public SampleFamilyBuilder defaultHistogramBucketUnit(TimeUnit unit) {
          this.context.setDefaultHistogramBucketUnit(unit);
          return this;
      }
  
      /**
       * Build Sample Family
       */
      public SampleFamily build() {
          return SampleFamily.build(this.context, this.samples);
      }
  
  }
  