class1.cs

自己写的可扩展插件文件管理器

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.Compression;
using Core.Services.Sdk;
using System.Windows.Forms;

namespace GZiplib
{
    [Plugin(true)]
    public class Class1:IPlugin
    {
        private PluginInfo p;
        private int curr = 0, max = 0;


        public Class1()
        {
            p = new PluginInfo("GZip compress", "Signercompress", "使用Gzip压缩文件", new Version(1, 0, 3204, 24355), new ToolStripMenuItem("Gzip压缩"));
        }

        public static void CompressBytes(FileStream inf,FileStream outf)
        {
            byte[] data = new byte[inf.Length];
            inf.Read(data, 0, data.Length);
            MemoryStream output = new MemoryStream();
            GZipStream gzip = new GZipStream(output,
            CompressionMode.Compress, true);
            gzip.Write(data, 0, data.Length);
            gzip.Close();
            outf.Write(output.ToArray(),0,(int)output.Length);
        }

        #region IPlugin 成员

        public void AssignTask(System.Collections.ArrayList Targets)
        {
            foreach (string s in Targets)
                max += (int)(new FileInfo(s).Length);
            foreach (string s in Targets)
            {
                FileInfo fi = new FileInfo(s);
                curr += (int)fi.Length;
                string name = s.Remove(s.LastIndexOf(".")) + ".gzip";
                FileStream fs = new FileStream(name, FileMode.Create);//output
                CompressBytes(fi.OpenRead(), fs);
                OnProgressChanged(new ProgressChangedEventArgs(curr, max));
            }
        }

        public PluginInfo PluginInfo
        {
            get
            {
                return p;
            }
        }

        public event ProgressChangedEventHandler ProgressChanged;

        protected virtual void OnProgressChanged(ProgressChangedEventArgs e)
        {
            if (ProgressChanged != null)
            {
                ProgressChanged(this, e);
            }
        }

        #endregion

        #region IDisposable 成员

        public void Dispose()
        {

        }

        #endregion
    }

    [Plugin(true)]
    public class Class2 : IPlugin
    {
        private PluginInfo p;
        private int curr = 0, max = 0;


        public Class2()
        {
            p = new PluginInfo("GZip decompress", "Signercompress", "使用Gzip解压缩文件", new Version(1, 0, 3204, 24355), new ToolStripMenuItem("Gzip解压"));
        }

        public static void DecompressBytes(byte[] inf,FileStream outf)
        {

            MemoryStream input = new MemoryStream();
            input.Write(inf, 0, inf.Length);
            input.Position = 0;
            GZipStream gzip = new GZipStream(input, CompressionMode.Decompress, false);
            MemoryStream output = new MemoryStream();
            byte[] buff = new byte[4096];
            int read = -1;
            read = gzip.Read(buff, 0, buff.Length);
            while (read > 0)
            {
                output.Write(buff, 0, read);
                read = gzip.Read(buff, 0, buff.Length);
            } 
            gzip.Close();
            outf.Write(output.ToArray(),0,(int)output.Length);
        }

        #region IPlugin 成员

        public void AssignTask(System.Collections.ArrayList Targets)
        {
            foreach (string s in Targets)
                max += (int)(new FileInfo(s).Length);
            foreach (string s in Targets)
            {
                FileStream fs = new FileStream(s, FileMode.Open);
                curr += (int)fs.Length;
                byte[] buff = new byte[fs.Length];
                fs.Read(buff, 0, (int)fs.Length);
                fs.Close();
                DecompressBytes(buff, new FileStream(s.Remove(s.LastIndexOf(".")), FileMode.Create));
                OnProgressChanged(new ProgressChangedEventArgs(curr, max));
            }
        }

        public PluginInfo PluginInfo
        {
            get
            {
                return p;
            }
        }

        public event ProgressChangedEventHandler ProgressChanged;

        protected virtual void OnProgressChanged(ProgressChangedEventArgs e)
        {
            if (ProgressChanged != null)
            {
                ProgressChanged(this, e);
            }
        }

        #endregion

        #region IDisposable 成员

        public void Dispose()
        {

        }

        #endregion
    }
}