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Java idiomatic client for Google Cloud Spanner.

There is a newer version: 6.81.1

/*
 * Copyright 2024 Google LLC
 *
 * Licensed 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.google.cloud.spanner;

import com.google.api.core.InternalApi;
import com.google.api.gax.tracing.ApiTracer;
import com.google.api.gax.tracing.ApiTracerFactory;
import com.google.api.gax.tracing.BaseApiTracerFactory;
import com.google.api.gax.tracing.SpanName;
import com.google.common.collect.ImmutableList;
import java.util.ArrayList;
import java.util.List;

@InternalApi
public class CompositeTracerFactory extends BaseApiTracerFactory {

  private final List apiTracerFactories;

  public CompositeTracerFactory(List apiTracerFactories) {
    this.apiTracerFactories = ImmutableList.copyOf(apiTracerFactories);
  }

  @Override
  public ApiTracer newTracer(ApiTracer parent, SpanName spanName, OperationType operationType) {
    List children = new ArrayList<>(apiTracerFactories.size());

    for (ApiTracerFactory factory : apiTracerFactories) {
      children.add(factory.newTracer(parent, spanName, operationType));
    }
    return new CompositeTracer(children);
  }
}