// This JavaScript asks for a start and ending date with text dialog boxes.

// It is  a proof of concept if dialogs could be used out of JavaScript within transformations.

// This could be a base for discussion if a general input step dialog should be created.

// It runs within Spoon, Pan and launched by the "Test script" button within the JavaScript editor.

// @author Jens Bleuel

// @since 2006-07-11

// to get the "Test script" button at the editor working correctly we need the existing Display / Shell

var display;

var displayHasToBeDisposed=false;

var shell=null;

try {

display=Packages.org.eclipse.swt.widgets.Display.getCurrent();

shell=display.getActiveShell();

} catch(e) {

// if it runs in batch mode (Pan or preview mode) no Display is available, so we have to create one

display=new Packages.org.eclipse.swt.widgets.Display();

displayHasToBeDisposed=true;

shell=new Packages.org.eclipse.swt.widgets.Shell(display);

}

// if we run in Pan we need to load the properties:

if(!Packages.org.pentaho.di.ui.core.PropsUI.isInitialized()) {

Packages.org.pentaho.di.ui.core.PropsUI.init(display,2); //2=TYPE_PROPERTIES_PAN

}

var dateDefaultFrom=DateFromProposal.getString().substr(0,10);//only the date and not the time

var dialogDateFrom=newPackages.org.pentaho.di.ui.core.dialog.EnterTextDialog(shell,"Date from", "Please enter the beginning date", dateDefaultFrom);

var dateFromAsString=dialogDateFrom.open();

if(dateFromAsString!=null&& dateFromAsString.length()>0) {

var dateDefaultTo=DateToProposal.getString().substr(0,10);//only the date and not the time;

var dialogDateTo=newPackages.org.pentaho.di.ui.core.dialog.EnterTextDialog(shell,"Date to", "Please enter the ending date", dateDefaultTo);

var dateToAsString=dialogDateTo.open();

if(dateToAsString!=null&& dateToAsString.length()>0) {

// here you could check or change formats a.s.o

} else {

// stop transformation when user cancels

throw new Packages.java.lang.RuntimeException("Input canceled by the user.");

}

} else {

// stop transformation when user cancels

throw new Packages.java.lang.RuntimeException("Input canceled by the user.");

}

if(displayHasToBeDisposed) {

display.dispose();

}

DateFromProposal@DateToProposal@dateFromAsString@dateToAsString

2006/01/01 00:00:00.000@2006/12/31 00:00:00.000@2014/01/02@2014/12/31

// C:\temp\LIM_kettle\ST18.PROTOKL.TENOPROD_2006*07_21_00_09

// rightstr(16)，截取右边16个字符

var dat = DIR.Clone().rightstr(16).str2dat("yyyy*MM_dd_HH_mm");

DIR@@@dat

C:\temp\LIM_kettle\ST18.PROTOKL.TENOPROD_2006*07_21_00_09@@@2006/07/21 00:09:00.000

var strArray = File.getString().split("/");//数组

var last = strArray[strArray.length-1];//数组中的最后一个即文件名

File@@@@last

C:/Test/file.txt@@@@file.txt

java; //不写木发现影响，仅限本例

//16进制->10

var nummerke = Packages.java.lang.Integer.valueOf(Hex.getString(), 16).intValue();

//Alert(nummerke);

Hex;nummerke

DEAD; 0057005

var first = amountField.Clone().substr(0,1).getString();

var amount = amountField.Clone().substr(1).str2num("###.00",".").getNumber();

if (first.equals("D"))

{

amount = -amount;

}

amountField@@@first@@@amount

C100.00  @@@C@@@00100.00

D100.00  @@@D@@@-00100.00