﻿// 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
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// under the License.

using System.Collections.Generic;
using Org.Apache.REEF.Tang.Annotations;

namespace Org.Apache.REEF.Client.Yarn
{
    /// <summary>
    /// Helper methods to interact with the YARN command line.
    /// </summary>
    [DefaultImplementation(typeof(YarnCommandLineEnvironment))]
    internal interface IYarnCommandLineEnvironment
    {
        /// <summary>
        /// Returns the class path returned by `yarn classpath`.
        /// </summary>
        /// <returns>The class path returned by `yarn classpath`.</returns>
        IReadOnlyList<string> GetYarnClasspathList();
    }
}