/*
.Net/C# 封装磁盘目录文件搜索功能的工具类
(实现了与搜索相关的事件,以便插入客户处理代码)
*/
// SearchWithEvents.cs :
// 输出 EXE:
// csc.exe SearchWithEvents.cs /r:C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Microsoft.VisualBasic.dll
// 输出 DLL:
// csc.exe /t:library SearchWithEvents.cs /r:C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Microsoft.VisualBasic.dll
//using System;
namespace Microshaoft.Utils
{
/// <summary>
/// .Net/C# 实现磁盘目录文件搜索的工具类 (搜索事件)
/// </summary>
public class Search
{
/// <summary>
/// 递归
/// </summary>
/// <param name="SourceDirectory">被搜索的源目录</param>
/// <param name="DirectoryPatterns">源目录下面的所有子目录的搜索匹配模式</param>
/// <param name="FilePatterns">源目录下面的所有文件的搜索匹配模式</param>
/// <param name="DestinationDirectory">存储相对路径</param>
private void Searching(string SourceDirectory, string DirectoryPatterns, string FilePatterns, string DestinationDirectory)
{
this._DirectoryPatterns = DirectoryPatterns;
this._FilePatterns = FilePatterns;
string[] Patterns = this._DirectoryPatterns.Split(';');
string[] patterns = this._FilePatterns.Split(';');
this._DirectoryID = 0;
this._FileID = 0;
DestinationDirectory += (DestinationDirectory.EndsWith(@"\") ? "" : @"\");
if (this._DirectoriesCount == 0) //处理源目录的当前的文件
{
this._DirectoriesCount++;
this._DirectoryID++;
this._CurrentDirectoryName = SourceDirectory;
if (SourceDirectory.EndsWith(@"\"))
{
this._CurrentDirectoryName = SourceDirectory.Substring(0, SourceDirectory.Length - 1);
}
this._ParentDirectoryName = this._CurrentDirectoryName.Substring(this._CurrentDirectoryName.LastIndexOf(@"\") + 1);
DestinationDirectory += this._ParentDirectoryName + @"\";
this._CurrentDestinationDirectoryName = DestinationDirectory;
if (this.AddSearchedDirectory(this._CurrentDirectoryName))
{
this._DirectoryUID++;
}
if (SearchedDirectory != null) //触发一次找到源目录的事件
{
OnSearchedDirectory(SourceDirectory, this._DirectoriesCount, this._DirectoryID, this._CurrentDestinationDirectoryName);
}
foreach (string p in patterns)
{
foreach (string f in System.IO.Directory.GetFiles(SourceDirectory, p.Trim()))
{
this._FilesCount++;
this._FileID++;
if (this.AddSearchedFile(f))
{
this._FileUID++;
}
if (SearchedFile != null)
{
OnSearchedFile(f, DirectoryUID, FileUID, this._DirectoryID, this.FileID, this._CurrentDestinationDirectoryName);
}
if (this._Cancel != CancelActions.No)
{
break;
}
}
if (this._Cancel != CancelActions.No)
{
break;
}
}
}
if (this._Cancel != CancelActions.AllDirectories)
{
this._FileID = 0;
this._DirectoryID = 0;
foreach (string P in Patterns)
{
if (this._Cancel != CancelActions.AllDirectories)
{
foreach (string d in System.IO.Directory.GetDirectories(SourceDirectory, P.Trim()))
{
if (this._Cancel != CancelActions.AllDirectories)
{
this._DirectoriesCount++;
this._DirectoryID++;
this._CurrentDirectoryName = d + (d.EndsWith(@"\") ? "" : @"\");
this._CurrentDestinationDirectoryName = DestinationDirectory + d.Substring(d.LastIndexOf(@"\") + 1) + @"\";
if (this.AddSearchedDirectory(this._CurrentDirectoryName))
{
this._DirectoryUID++;
}
if (SearchedDirectory != null)
{
OnSearchedDirectory(d, DirectoryUID, this._DirectoryID, this._CurrentDestinationDirectoryName);
}
if (this._Cancel == CancelActions.CurrentDirectory)
{
this._Cancel = CancelActions.No;
continue;
}
else if (this._Cancel == CancelActions.AllDirectories)
{
break;
}
if (this._Cancel != CancelActions.AllDirectories)
foreach (string p in patterns)
{
foreach (string f in System.IO.Directory.GetFiles(d, p.Trim()))
{
this._FilesCount++;
this._FileID++;
if (this.AddSearchedFile(f))
{
this._FileUID++;
}
if (SearchedFile != null)
{
OnSearchedFile(f, DirectoryUID, FileUID, this._DirectoryID, this.FileID, this._CurrentDestinationDirectoryName);
}
if (this._Cancel != CancelActions.No)
{
break;
}
}
if (this._Cancel != CancelActions.No)
{
break;
}
}
if (this._Cancel == CancelActions.CurrentDirectory)
{
this._Cancel = CancelActions.No;
continue;
}
else if (this._Cancel == CancelActions.AllDirectories)
{
break;
}
if (this._Cancel != CancelActions.AllDirectories)
{
this._Nest++;
Searching(d, this._DirectoryPatterns, this._FilePatterns, this._CurrentDestinationDirectoryName);
this._Nest--;
}
}
}
}
if (this._Cancel == CancelActions.CurrentDirectory)
{
this._Cancel = CancelActions.No;
continue;
}
else if (this._Cancel == CancelActions.AllDirectories)
{
break;
}
}
}
if ((this._Nest == 0))
{
if (Searched != null)
{
OnSearched(this.DirectoryUID, this.FileUID, this._CurrentDestinationDirectoryName);
}
}
}
public void Searching(string SourceDirectory)
{
Searching(SourceDirectory, "*", "*", this._DestinationDirectory);
}
public void Searching(string SourceDirectory, string FilePatterns)
{
Searching(SourceDirectory, "*", FilePatterns, this._DestinationDirectory);
}
public void Searching(string SourceDirectory, string DirectoryPatterns, string FilePatterns)
{
Searching(SourceDirectory, DirectoryPatterns, FilePatterns, this._DestinationDirectory);
}
private void OnSearched(int DirectoryUID, int FileUID, string CurrentDestinationDirectoryName)
{
SearchEventArgs sea = new SearchEventArgs(DirectoryUID, FileUID, CurrentDestinationDirectoryName);
Searched(this, sea);
}
private void OnSearchedFile(string f, int DirectoryUID, int FileUID, int DirectoryID, int FileID, string CurrentDestinationDirectoryName)
{
SearchEventArgs sea = new SearchEventArgs(f, DirectoryUID, FileUID, DirectoryID, FileID, CurrentDestinationDirectoryName);
//new SearchEventHandler(SearchedFile).BeginInvoke(this,sea,new System.AsyncCallback(this.SearchedFileCallBack),sea);
SearchedFile(this, sea);
}
private void SearchedFileCallBack(System.IAsyncResult iar)
{
throw new System.NotImplementedException();
}
private void SearchedDirectoryCallBack(System.IAsyncResult iar)
{
throw new System.NotImplementedException();
}
private void OnSearchedDirectory(string d, int DirectoryUID, int DirectoryID, string CurrentDestinationDirectoryName)
{
SearchEventArgs sea = new SearchEventArgs(d, DirectoryUID, DirectoryID, CurrentDestinationDirectoryName);
//new SearchEventHandler(SearchedDirectory).BeginInvoke(this,sea,new System.AsyncCallback(this.SearchedDirectoryCallBack),sea);
SearchedDirectory(this, sea);
}
public delegate void SearchEventHandler(Search Sender, SearchEventArgs e);
private int _Nest; //递归嵌套层数
public event SearchEventHandler SearchedDirectory; //"搜索到某个目录" 的事件
public event SearchEventHandler SearchedFile; //"搜索到某个文件" 的事件
public event SearchEventHandler Searched; //"搜索完毕" 的事件
private int _DirectoriesCount; //搜索目录的次数
private int _FilesCount; //搜索文件的次数
private string _FilePatterns = "*"; //文件名匹配模式
private string _DirectoryPatterns = "*"; //目录名匹配模式
private CancelActions _Cancel; //取消
private string _CurrentDirectoryName; //搜索的当前目录名
private string _FileName = null;
private int _FileID; //搜索的文件在当前目录的 ID
private int _DirectoryID; //搜索的目录在当前目录的父目录的 ID
private string _CurrentDestinationDirectoryName; //存储相对路径目录,可由于复制目录
private string _DestinationDirectory;
private string _ParentDirectoryName;
private int _FileUID; //本次搜索的"文件的唯一 ID"
private int _DirectoryUID; //本次搜索的"目录的唯一 ID"
private System.Collections.ArrayList _SearchedDirectories; //存储已搜索的目录
private System.Collections.ArrayList _SearchedFiles; //存储已搜索的文件
public System.Collections.ArrayList SearchedDirectories
{
get
{
//SearchedDirectories is ReadOnly
return System.Collections.ArrayList.ReadOnly(this._SearchedDirectories);
}
}
public System.Collections.ArrayList SearchedFiles
{
get
{
//SearchedFiles is ReadOnly
return System.Collections.ArrayList.ReadOnly(this._SearchedFiles);
}
}
public int DirectoriesCount
{
get
{
return _DirectoriesCount;
}
}
public int FilesCount
{
get
{
return _FilesCount;
}
}
public string DirectoriesPatterns
{
get
{
return _DirectoryPatterns;
}
set
{
_DirectoryPatterns = value;
}
}
public string DestinationDirectory
{
get
{
return _DestinationDirectory;
}
set
{
_DestinationDirectory = value;
}
}
public string CurrentDirectoryName
{
get
{
return _CurrentDirectoryName + (_CurrentDirectoryName.EndsWith(@"\") ? "" : @"\");
}
set
{
_CurrentDirectoryName = value;
}
}
public string FileName
{
get
{
return _FileName;
}
}
public string ParentDirectoryName
{
get
{
return _ParentDirectoryName;
}
}
/// <summary>
/// 根据源目录的目录结构信息存储相对路径信息
/// </summary>
public string CurrentDestinationDirectoryName
{
get
{
return _CurrentDestinationDirectoryName + (_CurrentDestinationDirectoryName.EndsWith(@"\") ? "" : @"\");
}
}
public int FileID
{
get
{
return _FileID;
}
}
public int DirectoryID
{
get
{
return _DirectoryID;
}
}
public CancelActions Cancel
{
get
{
return _Cancel;
}
set
{
_Cancel = value;
}
}
public int DirectoryUID
{
get
{
return _DirectoryUID;
}
}
public int FileUID
{
get
{
return _FileUID;
}
}
public string FilesPatterns
{
get
{
return _FilePatterns;
}
set
{
_FilePatterns = value;
}
}
private bool AddSearchedDirectory(string Key)
{
if (this._SearchedDirectories == null)
{
this._SearchedDirectories = new System.Collections.ArrayList();
}
bool b = this._SearchedDirectories.Contains(Key);
if (!b)
{
this._SearchedDirectories.Add(Key);
}
return !b;
}
private bool AddSearchedFile(string Key)
{
if (this._SearchedFiles == null)
{
this._SearchedFiles = new System.Collections.ArrayList();
}
bool b = this._SearchedFiles.Contains(Key);
if (!b)
{
this._SearchedFiles.Add(Key);
}
return !b;
}
}
public enum CancelActions
{
No //不取消,继续
,
CurrentDirectory //只取消当前目录
,
AllDirectories //取消后面的所有搜索
}
public class SearchEventArgs : System.EventArgs
{
private int _FileID;
private int _DirectoryID;
private string _CurrentDirectoryName;
private string _CurrentDestinationDirectoryName;
private string _FileName;
private int _DirectoriesCount = 0;
private int _FileUID;
private int _DirectoryUID;
private int _FilesCount = 0;
public int FilesCount
{
get
{
return _FilesCount;
}
}
public int DirectoriesCount
{
get
{
return _DirectoriesCount;
}
}
public string CurrentDirectoryName
{
get
{
return _CurrentDirectoryName + (_CurrentDirectoryName.EndsWith(@"\") ? "" : @"\");
}
}
public string FileName
{
get
{
return _FileName;
}
}
public string ParentDirectoryName
{
get
{
return _CurrentDirectoryName.Substring(_CurrentDirectoryName.LastIndexOf(@"\") + 1);
}
}
public string CurrentDestinationDirectoryName
{
get
{
return _CurrentDestinationDirectoryName + (_CurrentDestinationDirectoryName.EndsWith(@"\") ? "" : @"\");
}
}
public int FileUID
{
get
{
return _FileUID;
}
}
public int DirectoryUID
{
get
{
return _DirectoryUID;
}
}
public int FileID
{
get
{
return _FileID;
}
}
public int DirectoryID
{
get
{
return _DirectoryID;
}
}
internal SearchEventArgs(int DirectoryUID, int FileUID, string CurrentDestinationDirectoryName)
{
this._FileUID = FileUID;
this._DirectoryUID = DirectoryUID;
this._CurrentDestinationDirectoryName = CurrentDestinationDirectoryName;
}
internal SearchEventArgs(string FileName, int DirectoryUID, int FileUID, int DirectoryID, int FileID, string CurrentDestinationDirectoryName)
{
this._FileName = System.IO.Path.GetFileName(FileName);
this._CurrentDirectoryName = System.IO.Path.GetDirectoryName(FileName);
this._FileUID = FileUID;
this._DirectoryUID = DirectoryUID;
this._DirectoryID = DirectoryID;
this._FileID = FileID;
this._CurrentDestinationDirectoryName = CurrentDestinatio