isvjtrend.java

此文件为OPC Client IsVJTrend源代码,在VJ++开发环境下调试

/////////////////////////////////////////////////////////////////////////////
//
//  OPC Trend VJ Client: ISVjTrend.java
//                       (Source File)
//
/////////////////////////////////////////////////////////////////////////////
//
//          Author: Raphael Imhof
//    Initial Date: 11/04/98
//       $Workfile: ISVjTrend.Java $
//       $Revision: 1 $
//           $Date: 7/27/99 5:09p $
//   Target System: Microsoft Windows NT 4.0
//     Environment: Visual J++ 6.0 / OPC DataAccess 2.0
//         Remarks:
//
/////////////////////////////////////////////////////////////////////////////
//
//     Description: implementation of the main form class.
//
//
/////////////////////////////////////////////////////////////////////////////
//
//  History of Changes     (Please remove very old comments and blank lines!)
//            $Log: /IDK/OPCServer/clients/VJ++/ISVjTrend/ISVjTrend.Java $
// 
// 1     7/27/99 5:09p Imhof
// 
// 1     7/27/99 4:39p Imhof
// 
// 1     7/27/99 4:33p Imhof
// 
// 6     1/20/99 3:17p Imhof
// Updated header
//
//
//  $Nokeywords:$ (To avoid useless search while checking in.)
/////////////////////////////////////////////////////////////////////////////
//  Copyright (C) 1999, Siemens Building Technologies, Inc. Landis Division
//
//  SIEMENS BUILDING TECHNOLOGIES, INC. IS PROVIDING THE FOLLOWING EXAMPLES
//  OF CODE AS SAMPLE ONLY.
//  SIEMENS BUILDING TECHNOLOGIES, INC. MAKES NO REPRESENTATIONS OR WARRANTIES
//  OF ANY KIND WITH RESPECT TO THE VALIDTY OF THE CODES OR DESIRED RESULTS
//  AND DISCLAIMS ALL SUCH REPRESENTATIONS AND WARRANTIES, INCLUDING FOR EXAMPLE,
//  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//  SIEMENS BUILIDNG TECHNOLOGIES, INC. DOES NOT REPRESENT OR WARRANT THAT
//  THE FOLLOWING CODE SAMPLES ARE ACCURATE, VALID, COMPLETE OR CURRENT.
//
/////////////////////////////////////////////////////////////////////////////

import com.ms.wfc.app.*;
import com.ms.wfc.core.*;
import com.ms.wfc.ui.*;
import com.ms.wfc.io.*;

import com.ms.com.*;
import java.util.Date;
import java.text.*;
import java.util.TimeZone;
import java.util.Locale;


/**
 * @author: Application Wizard
 * @version: 1.0
 * This class can take a variable number of parameters on the command
 * line. Program execution begins with the main() method. The class
 * constructor is not invoked unless an object of type 'ISVjTrend'
 * created in the main() method.
 */ 

public class ISVjTrend extends Form
{
	private String m_sFileName = new String("");
	private boolean m_bIsDirty = false;
	private Server server;
	
	private void doOpen(Object sender, Event e)
	{
		// Open
		if(server.IsConnected())
		{		
			if(server.SelectTag())
			{
				//options dialog (for samples)
				int	iSamples = 20;
				OptionsDlg fOptions = new OptionsDlg();
				fOptions.SetSamples(iSamples);
				
				if(fOptions.showDialog() == DialogResult.OK)
				{
					//clear views
					TrendGraphView.setRowCount((short)1);
					TrendListView.removeAllItems();
			
					iSamples = fOptions.GetSamples();
					
					SafeArray Values = new SafeArray(Variant.VariantVariant, iSamples + Server.vbArrayOffset); //out
					SafeArray Errors = new SafeArray(Variant.VariantInt , iSamples + Server.vbArrayOffset);//out
					Variant Qualities  = new Variant(); //out
					Variant TimeStamps  = new Variant(); //out
				
					m_sFileName = server.GetTagName();
				
					if(server.ReadTrend(iSamples, Values, Errors, Qualities, TimeStamps))
					{
						//update list and graph
						TrendGraphView.setColumnCount((short)1);
						TrendGraphView.setRowCount((short)iSamples);
	
						for(int i = 0; i < iSamples; i++)
						{						
							boolean			bAlarm;
							boolean			bNotValid;
							boolean			bDataLoss;
							long			wQuality;
							long			wPriority;
							String			sPriority;
							String[]		SubItems = new String[4];
					            
							SafeArray quality = Qualities.toSafeArray();
							
							wQuality = quality.getInt(i + Server.vbArrayOffset);
							if((wQuality & 0x4000) > 0)
								bDataLoss = true;
							else
								bDataLoss = false;
           
							if((wQuality & 0x2000) > 0)
							    bAlarm = true;
							else
							    bAlarm = false;
							    
							if((wQuality & 0x8000) > 0)
							    bNotValid = true;
							else
							    bNotValid = false;                        
							
							if(!bNotValid)
							{
								//time stamp handling
								
								SafeArray time = TimeStamps.toSafeArray();
								Date TimeOfValue = new Date(time.getString(i + Server.vbArrayOffset));
								TimeOfValue.setMinutes(TimeOfValue.getMinutes() - TimeOfValue.getTimezoneOffset());
								String sTimeOfValue = new String();
							
								DateFormat formatter = new SimpleDateFormat("M/dd/yy HH:mm:ss");
								formatter.setTimeZone(TimeZone.getDefault());
								sTimeOfValue = formatter.format(TimeOfValue);
								
								//graph
								TrendGraphView.setRow((short)(i+1));
								TrendGraphView.setData(Values.getString(i + Server.vbArrayOffset));								
								TrendGraphView.setRowLabel(sTimeOfValue); 
								
								//list
								SubItems[0] = Values.getString(i + Server.vbArrayOffset);
								
								wPriority = wQuality & 0x0F00; //retrieve the priority bits
								wPriority = wPriority >> 8;
					   
								switch((int)wPriority)
								{   
									case 0:
									    sPriority = "NONE";
										break;
									case 1:
									    sPriority = "PDL";
										break;
									case 2:
									    sPriority = "EMER";
										break;
									case 3:
									    sPriority = "SMOKE";
										break;
									case 4:
									    sPriority = "OPER";
										break;
									case 5:
									    sPriority = "TECOVRD";
										break;									
									case 6:
									    sPriority = "HOST_2";
										break;
									case 7:
									    sPriority = "HOST_3";
										break;
									case 8:
									    sPriority = "HOST_4";
										break;
									case 9:
									    sPriority = "HOST_5";
										break;
									case 10:
									    sPriority = "HOST_6";
										break;
									case 12-15:
									    sPriority = "NONE";
										break;
									case 11:
									    sPriority = "UNKNOWN";
										break;
									default:
									    sPriority = "UNKNOWN";
										break;
								}
								
								SubItems[1] = sPriority; //Priority
					        
								if(bAlarm) //Alarm
								    SubItems[2] = "Yes";
								else
								    SubItems[2] = "No";
								            
								if(bDataLoss) //Dataloss
								    SubItems[3] = "Yes";
								else
								    SubItems[3] = "No";
					               
								TrendListView.addItem(sTimeOfValue, 1, SubItems);
								
							} //end if not valid
						} //end for
					} //end if readtrend
				} //end if options
			} //end if selecttag
		} //end if connect
		else
		{
			MessageBox.show("You must first connect to an OPC server!", "IsVjTrend");	
		}
	} //end func

	
	public void doPaste(Object sender, Event e)
	{
		// Paste
		try 
		{	
			DataObject myDObj = new DataObject (Clipboard.getDataObject ());
			//...
		}
		catch (Exception ecx)
		{
		}
	}

	public void doCopy(Object sender, Event e)
	{
		// Copy
	}

	public void doCut(Object sender, Event e)
	{
		// Cut
	}
	
	public void exitMenu_click(Object sender, Event e)
	{
		// Exit		
		Application.exit();
	}

	private void aboutMenu_click(Object sender, Event e)
	{
		About myAbout = new About();
		myAbout.showDialog ();
	}

	private void toolBar_buttonClick(Object source, ToolBarButtonClickEvent e)
	{
		if (e.button == openToolBarButton) {	
			// Open
			doOpen(source,e);
		}
		else if (e.button == ConnecttoolBarButton) {	
			// Connect
			menuConnect_click(source,e);
		}
		else if (e.button == DisconnecttoolBarButton) {	
			// Disconnect
			menuDisconnect_click(source,e);
		}
		else  {	
			; //nop
		}
}

	public ISVjTrend()
	{
			super();

		//Required for Visual J++ Form Designer support
		initForm();		

		//TODO: Add any constructor code after initForm call