﻿// 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.

using Org.Apache.REEF.Client.YARN.Parameters;
using Org.Apache.REEF.Common.Files;
using Org.Apache.REEF.Tang.Annotations;

namespace Org.Apache.REEF.Client.Yarn
{
    /// <summary>
    /// Provides path to job submission directory.
    /// </summary>
    public sealed class JobSubmissionDirectoryProvider : IJobSubmissionDirectoryProvider
    {
        private readonly string _jobSubmissionDirectoryPrefix;
        private readonly REEFFileNames _fileNames;

        [Inject]
        private JobSubmissionDirectoryProvider(
            [Parameter(typeof(JobSubmissionDirectoryPrefixParameter))]
            string jobSubmissionDirectoryPrefix,
            REEFFileNames fileNames)
        {
            _fileNames = fileNames;
            _jobSubmissionDirectoryPrefix = jobSubmissionDirectoryPrefix;
        }

        /// <summary>
        /// Returns path to job submission directory in DFS.
        /// </summary>
        public string GetJobSubmissionRemoteDirectory(string applicationId)
        {
            return string.Format(@"{0}/{1}{2}/",
                _jobSubmissionDirectoryPrefix,
                _fileNames.GetJobFolderPrefix(),
                applicationId);
        }
    }
}