Bug 214204 Only document content in document folder should be removed.[0601]
Description: Only document related content in document folder should be removed. Build number:2.3.0.v20080103 Steps to reproduce: 1. Deploy BIRT. 2. Edit web.xml to set BIRT_VIEWER_DOCUMENT_FOLDER to your local path and there are content inside the path. 3. Start server and click View Example to preview sample report. Expected result: Only content created by viewer should be removed in specified document folder. Actual result: All contents are deleted despite whether they are related with BIRT. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
return false;
				}
			}
		}
		
		return dir.delete( );
	}
	/**
	 * Get report parameter by given name.
	 * 
	 * @param request
	 *            http request
	 * @param name
	 *            parameter name
	 * @param defaultValue
	 *            default parameter value
	 * @return parameter value
	 */
	public static String getReportParameter( HttpServletRequest request,
			String name, String defaultValue )
	{
		assert request != null && name != null;
		String value = getParameter( request, name );
		if ( value == null || value.length( ) <= 0 ) 
		
		{
			value = ""; 
		}
		Map paramMap = request.getParameterMap( );
		String ISOName = toISOString( name );