using System;
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using System.IO;
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using System.Collections;
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using HH.WMS.Utils.ZipLib.Zip;
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using HH.WMS.Utils.ZipLib.Checksums;
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using HH.WMS.Utils.ZipLib.GZip;
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namespace HH.WMS.Utils
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{
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public class Zipper : IDisposable
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{
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#region ÊôÐÔ
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private string m_FolderToZIP;
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private ArrayList m_FileNamesToZIP;
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private string m_FileNameZipped;
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private ZipOutputStream m_ZipStream = null;
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private Crc32 m_Crc;
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#region Begin for Public Properties
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/**/
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/// <summary>
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/// Folder Name to ZIP
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/// Like "C:Test"
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/// </summary>
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public string FolderToZIP
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{
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get { return m_FolderToZIP; }
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set { m_FolderToZIP = value; }
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}
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/**/
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/// <summary>
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/// File Name to ZIP
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/// Like "C:TestTest.txt"
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/// </summary>
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public ArrayList FileNamesToZIP
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{
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get { return m_FileNamesToZIP; }
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set { m_FileNamesToZIP = value; }
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}
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/**/
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/// <summary>
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/// Zipped File Name
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/// Like "C:TestMyZipFile.ZIP"
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/// </summary>
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public string FileNameZipped
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{
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get { return m_FileNameZipped; }
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set { m_FileNameZipped = value; }
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}
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#endregion
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/**/
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/// <summary>
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/// The construct
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/// </summary>
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public Zipper()
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{
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this.m_FolderToZIP = "";
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this.m_FileNamesToZIP = new ArrayList();
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this.m_FileNameZipped = "";
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}
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#endregion
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#region ZipFolder
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/**/
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/// <summary>
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/// Zip one folder : single level
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/// Before doing this event, you must set the Folder and the ZIP file name you want
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/// </summary>
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public void ZipFolder()
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{
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if (this.m_FolderToZIP.Trim().Length == 0)
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{
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throw new Exception("You must setup the folder name you want to zip!");
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}
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if (Directory.Exists(this.m_FolderToZIP) == false)
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{
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throw new Exception("The folder you input does not exist! Please check it!");
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}
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if (this.m_FileNameZipped.Trim().Length == 0)
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{
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throw new Exception("You must setup the zipped file name!");
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}
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string[] fileNames = Directory.GetFiles(this.m_FolderToZIP.Trim());
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if (fileNames.Length == 0)
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{
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throw new Exception("Can not find any file in this folder(" + this.m_FolderToZIP + ")!");
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}
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// Create the Zip File
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this.CreateZipFile(this.m_FileNameZipped);
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// Zip all files
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foreach (string file in fileNames)
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{
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this.ZipSingleFile(file);
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}
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// Close the Zip File
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this.CloseZipFile();
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}
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#endregion
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#region ZipFiles
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/**/
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/// <summary>
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/// Zip files
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/// Before doing this event, you must set the Files name and the ZIP file name you want
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/// </summary>
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public void ZipFiles()
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{
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if (this.m_FileNamesToZIP.Count == 0)
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{
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throw new Exception("You must setup the files name you want to zip!");
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}
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foreach (object file in this.m_FileNamesToZIP)
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{
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if (File.Exists(((string)file).Trim()) == false)
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{
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throw new Exception("The file(" + (string)file + ") you input does not exist! Please check it!");
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}
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}
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if (this.m_FileNameZipped.Trim().Length == 0)
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{
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throw new Exception("You must input the zipped file name!");
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}
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// Create the Zip File
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this.CreateZipFile(this.m_FileNameZipped);
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// Zip this File
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foreach (object file in this.m_FileNamesToZIP)
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{
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this.ZipSingleFile((string)file);
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}
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// Close the Zip File
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this.CloseZipFile();
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}
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#endregion
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#region CreateZipFile
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/**/
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/// <summary>
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/// Create Zip File by FileNameZipped
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/// </summary>
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/// <param name="fileNameZipped">zipped file name like "C:TestMyZipFile.ZIP"</param>
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private void CreateZipFile(string fileNameZipped)
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{
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this.m_Crc = new Crc32();
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this.m_ZipStream = new ZipOutputStream(File.Create(fileNameZipped));
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this.m_ZipStream.SetLevel(6); // 0 - store only to 9 - means best compression
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}
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#endregion
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#region CloseZipFile
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/**/
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/// <summary>
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/// Close the Zip file
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/// </summary>
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private void CloseZipFile()
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{
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this.m_ZipStream.Finish();
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this.m_ZipStream.Close();
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this.m_ZipStream = null;
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}
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#endregion
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#region ZipSingleFile
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/**/
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/// <summary>
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/// Zip single file
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/// </summary>
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/// <param name="fileName">file name like "C:TestTest.txt"</param>
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private void ZipSingleFile(string fileNameToZip)
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{
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// Open and read this file
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FileStream fso = File.OpenRead(fileNameToZip);
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// Read this file to Buffer
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byte[] buffer = new byte[fso.Length];
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fso.Read(buffer, 0, buffer.Length);
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// Create a new ZipEntry
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ZipEntry zipEntry = new ZipEntry(fileNameToZip.Split('\\')[fileNameToZip.Split('\\').Length - 1]);
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zipEntry.DateTime = DateTime.Now;
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// set Size and the crc, because the information
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// about the size and crc should be stored in the header
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// if it is not set it is automatically written in the footer.
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// (in this case size == crc == -1 in the header)
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// Some ZIP programs have problems with zip files that don't store
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// the size and crc in the header.
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zipEntry.Size = fso.Length;
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fso.Close();
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fso = null;
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// Using CRC to format the buffer
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this.m_Crc.Reset();
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this.m_Crc.Update(buffer);
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zipEntry.Crc = this.m_Crc.Value;
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// Add this ZipEntry to the ZipStream
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this.m_ZipStream.PutNextEntry(zipEntry);
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this.m_ZipStream.Write(buffer, 0, buffer.Length);
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}
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#endregion
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#region IDisposable member
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/**/
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/// <summary>
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/// Release all objects
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/// </summary>
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public void Dispose()
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{
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if (this.m_ZipStream != null)
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{
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this.m_ZipStream.Close();
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this.m_ZipStream = null;
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}
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}
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#endregion
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}
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}
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