LocalFileSystem.cs

Go to the documentation of this file.

// 
//  Copyright 2010-2015 Deveel
// 
//    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.
//

using System;
using System.IO;

namespace Deveel.Data.Store {
    public sealed class LocalFileSystem : IFileSystem {
        public bool FileExists(string path) {
            return File.Exists(path);
        }

        IFile IFileSystem.OpenFile(string path, bool readOnly) {
            return OpenFile(path, readOnly);
        }

        public LocalFile OpenFile(string fileName, bool readOnly) {
            if (!FileExists(fileName))
                throw new IOException(string.Format("The file '{0}' does not exist: cannot be opened", fileName));

            return new LocalFile(fileName, readOnly);
        }

        IFile IFileSystem.CreateFile(string path) {
            return CreateFile(path);
        }

        public LocalFile CreateFile(string fileName) {
            if (String.IsNullOrEmpty(fileName))
                throw new ArgumentNullException("fileName");

            if (FileExists(fileName))
                throw new IOException(string.Format("The file '{0}' already exists: cannot create.", fileName));

            return new LocalFile(fileName, false);
        }

        public bool DeleteFile(string path) {
            File.Delete(path);
            return FileExists(path);
        }

        public string CombinePath(string path1, string path2) {
            return Path.Combine(path1, path2);
        }

        public bool RenameFile(string sourcePath, string destPath) {
            File.Move(sourcePath, destPath);
            return File.Exists(destPath);
        }

        public bool DirectoryExists(string path) {
            return Directory.Exists(path);
        }

        public void CreateDirectory(string path) {
            Directory.CreateDirectory(path);
        }

        public long GetFileSize(string path) {
            return new FileInfo(path).Length;
        }
    }
}