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.meter.process;
  
  import com.google.common.collect.ImmutableMap;
  import lombok.Builder;
  import org.apache.skywalking.oap.meter.analyzer.dsl.Sample;
  
  /**
   * Help to build Sample with agent side meter.
   */
  @Builder
  public class SampleBuilder {
  
      final String name;
      final ImmutableMap<String, String> labels;
      final double value;
  
      public Sample build(String service, String instance, long timestamp) {
          return Sample.builder()
              .name(name)
              .labels(ImmutableMap.<String, String>builder()
                  // Put original labels
                  .putAll(labels)
                  // Put report service and instance to labels
                  .put("service", service)
                  .put("instance", instance)
                  .build())
              .value(value)
              .timestamp(timestamp).build();
      }
  }
  