Bug 207250 Check blank value for datetime type parameter from url.[0002][0705]
Description: Check blank value for datetime type parameter from url. Build number:2.3.0.v20071023 Steps to reproduce: 1. New a datetime parameter mydt,listbox, tick off isRequired. 2. Preview in external browser and add "&dt=" in url, press enter. Expected result: Error message to indicate blank value isn't allowed for this parameter. Actual result: No error message and blank value is accepted. I tried to new a jsp and use <birt:paramDef> to pass the blank value and the blank value is accepted,too. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/DataUtil.java
import org.eclipse.birt.report.engine.api.IScalarParameterDefn;
import org.eclipse.birt.report.exception.ViewerValidationException;
import org.eclipse.birt.report.model.api.elements.DesignChoiceConstants;
import org.eclipse.birt.report.model.api.metadata.ValidationValueException;
import org.eclipse.birt.report.model.api.util.ParameterValidationUtil;
import org.eclipse.birt.report.resource.BirtResources;
import org.eclipse.birt.report.resource.ResourceConstants;
/**
 * Provides data convert and format services
 * 
 */
public class DataUtil
{
	/**
	 * Convert Object to String
	 * 
	 * @param object
	 * @return String
	 */
	public static String getString( Object object )
	{
		if ( object == null )
			return null;
		return object.toString( );
	}
	/**
	 * Returns trim string, not null
	 * 
	 * @param str
	 * @return