Class for gzip compressing strings

using Ah.Core.Compression.Contracts; using System; using System.Collections.Generic; using System.IO; using System.IO.Compression; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Ah.Core.Compression.Services { /// <summary> /// Service for compressing and decompressing strings. /// </summary> public class CompressionService : ICompressionService { /// <summary> /// Default compression service. /// </summary> public CompressionService() { } /// <summary> /// Decompresses byte array. /// </summary> /// <param name="bytes"></param> /// <returns></returns> public string Decompress(byte[] bytes) { using (var msi = new MemoryStream(bytes)) { using (var mso = new MemoryStream()) { using (var gs = new GZipStream(msi, CompressionMode.Decompress)) { CopyTo(gs, mso); } return Encoding.UTF8.GetString(mso.ToArray()); } } } /// <summary> /// Compresses provided string. /// </summary> /// <param name="str"></param> /// <returns></returns> public byte[] Compress(string str) { var bytes = Encoding.UTF8.GetBytes(str); using (var msi = new MemoryStream(bytes)) { using (var mso = new MemoryStream()) { using (var gs = new GZipStream(mso, CompressionMode.Compress)) { CopyTo(msi, gs); } return mso.ToArray(); } } } /// <summary> /// Copies stream to stream. /// </summary> /// <param name="src"></param> /// <param name="dest"></param> private void CopyTo(Stream src, Stream dest) { byte[] bytes = new byte[4096]; int cnt; while ((cnt = src.Read(bytes, 0, bytes.Length)) != 0) { dest.Write(bytes, 0, cnt); } } } }