code: /*
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * 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 io.reactivex.rxjava3.internal.operators.parallel;
  
  import org.reactivestreams.*;
  
  import io.reactivex.rxjava3.parallel.ParallelFlowable;
  import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  
  /**
   * Wraps multiple Publishers into a ParallelFlowable which runs them
   * in parallel.
   *
   * @param <T> the value type
   */
  public final class ParallelFromArray<T> extends ParallelFlowable<T> {
      final Publisher<T>[] sources;
  
      public ParallelFromArray(Publisher<T>[] sources) {
          this.sources = sources;
      }
  
      @Override
      public int parallelism() {
          return sources.length;
      }
  
      @Override
      public void subscribe(Subscriber<? super T>[] subscribers) {
          subscribers = RxJavaPlugins.onSubscribe(this, subscribers);
  
          if (!validate(subscribers)) {
              return;
          }
  
          int n = subscribers.length;
  
          for (int i = 0; i < n; i++) {
              sources[i].subscribe(subscribers[i]);
          }
      }
  }
  