Bug 180431 Exported files from Export Report have no extension name.[0002]
Description: Exported files from Export Report have no extension name. Build number:2.2.0.v20070402 Steps to reproduce: 1. New a report. 2. Preview in Web Viewer. 3. Click Export Report. 4. Select any kind of format and click OK. 5. Save the report intead of open it. 6. Check the saved file. Expected result: If I choose PDF, the file name should be like "new_report_1.pdf" Actual result: The file name is new_report without extension name. Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
*/
	public static final String PARAM_FIT_TO_PAGE = "__fittopage";
	/**
	 * URL parameter name to indicate if pagebreak pagination only when render
	 * report as PDF.
	 */
	public static final String PARAM_PAGEBREAK_ONLY = "__pagebreakonly";
	/**
	 * Indentify the display text of select parameter
	 */
	public static final String PREFIX_DISPLAY_TEXT = "__isdisplay__"; 
	/**
	 * Indentify the parameter value is a locale string
	 */
	public static final String PREFIX_ISLOCALE = "__islocale__"; 
	/**
	 * URL parameter name to indicate the resource folder of all the report
	 * resources.
	 */
	public static final String PARAM_RESOURCE_FOLDER = "__resourceFolder"; 
	/**
	 * URL parameter name to indicate the target servlet pattern.
	 */
	public static final String PARAM_SERVLET_PATTERN = "__pattern"; 
	/**
	 * URL parameter name to indicate the target window.
	 */
	public static final String PARAM_TARGET = "__target"; 
	/**
	 * URL parameter name to indicate whether cache the parameter.