databasemonitordlg.cpp

监控SQL Server2000数据库

// DatabaseMonitorDlg.cpp : implementation file
//

#include "stdafx.h"
#include "DatabaseMonitor.h"
#include "DatabaseMonitorDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDatabaseMonitorDlg dialog

CDatabaseMonitorDlg::CDatabaseMonitorDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDatabaseMonitorDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDatabaseMonitorDlg)
	m_csLogFileSize = _T("");
	m_csCAvailableSize = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_pConnection = NULL;
	m_bFirst = true;
	m_iMonitorInterval = 3600*1000;
}

void CDatabaseMonitorDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDatabaseMonitorDlg)
	DDX_Text(pDX, IDC_STATIC_LOG_FILE_SIZE, m_csLogFileSize);
	DDX_Text(pDX, IDC_STATIC_C_AVAILABLE_SIZE, m_csCAvailableSize);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDatabaseMonitorDlg, CDialog)
	//{{AFX_MSG_MAP(CDatabaseMonitorDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_BN_CLICKED(ID_SHRINK, OnShrink)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDatabaseMonitorDlg message handlers

BOOL CDatabaseMonitorDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	HKEY hKey;
	if(ERROR_SUCCESS==RegCreateKey(HKEY_LOCAL_MACHINE,"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\",&hKey))
	{
		char szBuf[1000];
		strcpy(szBuf, "C:\\thunder\\washing\\Washingsvr\\DatabaseMonitor.exe"); 
 
		// Add the name to the EventMessageFile subkey. 
 
		if (RegSetValueEx(hKey,             // subkey handle 
				"WashingDatabaseMonitor",       // value name 
				0,                        // must be zero 
				REG_EXPAND_SZ,            // value type 
				(LPBYTE) szBuf,           // pointer to value data 
				strlen(szBuf) + 1))       // length of value data 
		{
			TRACE("Error\n");
		}		
		RegCloseKey(hKey);
	}

	if(ConnectDB()==FALSE)
		return FALSE;
	SetTimer(UINT(this),m_iMonitorInterval, NULL);
	SetDBOption();
	GetInfo();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CDatabaseMonitorDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CDatabaseMonitorDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CDatabaseMonitorDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

BOOL CDatabaseMonitorDlg::ConnectDB()
{
//_chdrive
	char szServerIP[64];
	char szDBName[32];
	char szUser[32];
	char szPwd[32];
	memset(szServerIP, 0, sizeof(szServerIP));
	memset(szDBName, 0, sizeof(szDBName));
	memset(szUser, 0, sizeof(szUser));
	memset(szPwd, 0, sizeof(szPwd));
	
	char szIniFile[MAX_PATH];	
	strcpy(szIniFile, "C:\\Thunder\\Thunder.ini");	
	
//	GetPrivateProfileString(_T("MainServer"), _T("DataBaseServerIp"), "127.0.0.1", 
//		szServerIP, sizeof(szServerIP), szIniFile);
	strcpy(szServerIP,"127.0.0.1");
//	strcpy(szServerIP,"192.168.0.160");
	GetPrivateProfileString(_T("Washing"), _T("DataBaseName"), "Washing", 
		szDBName, sizeof(szDBName), szIniFile);
	GetPrivateProfileString(_T("Washing"), _T("UserName"), "sa", 
		szUser, sizeof(szUser), szIniFile);
	GetPrivateProfileString(_T("Washing"), _T("PassWord"), "", 
		szPwd, sizeof(szPwd), szIniFile);

	CString strCon = "";
	CString strTemp = "";
	
	strTemp.Format("Provider=sqloledb;Data Source=%s", szServerIP);
	strCon +=strTemp;
	
	strTemp.Format(";Initial Catalog=%s",szDBName);
	strCon +=strTemp;	
	
	strTemp.Format("; user id = %s",szUser);
	strCon +=strTemp;
	
	strTemp.Format("; password = %s",szPwd);
	strCon +=strTemp;

	try
	{
		m_pConnection.CreateInstance( __uuidof(Connection) );	 
		m_pConnection->Open(strCon.GetBuffer(0), "", "", adConnectUnspecified);
	}
	catch(...)
	{
		AfxMessageBox("无法连接数据库。");
		OnCancel();
		return FALSE;
	}
	
	return TRUE;
}

void CDatabaseMonitorDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	if(AfxMessageBox("确认退出吗?", MB_YESNO) ==IDYES)
	{
		KillTimer(UINT(this));
		CDialog::OnCancel();
	}
}

CDatabaseMonitorDlg::~CDatabaseMonitorDlg()
{
	if(m_pConnection)
	{
		m_pConnection.Release();
	}
}

void CDatabaseMonitorDlg::OnTimer(UINT nIDEvent) 
{
	if(m_bFirst)
		m_bFirst = false;
	GetInfo();
	CDialog::OnTimer(nIDEvent);
}

void CDatabaseMonitorDlg::OnShrink() 
{
	if(atoi(m_csLogFileSize) < 1000)
	{
		AfxMessageBox("日志文件小于1G，没有必要压缩日志文件。");	
		return;
	}

	m_csHint = "真的要压缩数据库吗？\n必须在停止营业后压缩。";
	ShrinkDB();
}

bool CDatabaseMonitorDlg::BackupDatabase()
{
	_CommandPtr pCmd		= NULL;
	_ParameterPtr pPrm		= NULL;	
	FieldPtr pTmp;
	try
	{
		long iReturn, iLogFileSize = 0, iMainFileSize = 0;
	//	iReturn = GetFirstLongField("SELECT TOP 1 [size] * (8192/1024) / 1024 FROM SYSFILES WHERE [name] = 'karaok_log'", &iLogFileSize);
	//	iReturn = GetFirstLongField("SELECT TOP 1 [size] * (8192/1024) / 1024 FROM SYSFILES WHERE [name] = 'karaok'", &iMainFileSize);
		iReturn = GetFirstLongField("SELECT TOP 1 [size] * (8192/1024) / 1024 FROM SYSFILES WHERE [name] = 'washing_log'", &iLogFileSize);