// <copyright file="StreamHelper.cs" company="SoluiNet">

// Copyright (c) SoluiNet. All rights reserved.

// </copyright>

namespace SoluiNet.Core.Tools.Stream

{

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

/// <summary>

/// Provides a collection of methods to work with streams.

/// </summary>

public static class StreamHelper

{

/// <summary>

/// Convert a stream to a string.

/// </summary>

/// <param name="stream">The stream.</param>

/// <param name="encoding">The encoding. If not provided UTF-8 will be used.</param>

/// <returns>Returns a <see cref="string"/> for the contents of the <see cref="Stream"/>.</returns>

public static string StreamToString(System.IO.Stream stream, Encoding encoding = null)

{

if (stream == null)

{

throw new ArgumentNullException(nameof(stream));

}

if (encoding == null)

{

encoding = Encoding.UTF8;

}

stream.Position = 0;

using (StreamReader reader = new StreamReader(stream, encoding))

{

return reader.ReadToEnd();

}

}

/// <summary>

/// Convert a stream to a string.

/// </summary>

/// <param name="stream">The stream.</param>

/// <param name="encoding">The encoding. If not provided UTF-8 will be used.</param>

/// <returns>Returns a <see cref="string"/> for the contents of the <see cref="Stream"/>.</returns>

public static string ReadStringFromStream(this System.IO.Stream stream, Encoding encoding = null)

{

return StreamToString(stream, encoding);

}

/// <summary>

/// Convert stream to byte array (taken from: https://stackoverflow.com/questions/221925/creating-a-byte-array-from-a-stream).

/// </summary>

/// <param name="stream">The stream.</param>

/// <returns>Returns the converted stream as byte array.</returns>

public static byte[] ToByteArray(this System.IO.Stream stream)

{

if (stream == null)

{

throw new ArgumentNullException(nameof(stream));

}

var buffer = new byte[16 * 1024];

using (var memoryStream = new MemoryStream())

{

int read;

while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)

{

memoryStream.Write(buffer, 0, read);

}

return memoryStream.ToArray();

}

}

}

}