Bug 137176 It takes unacceptable long time to render a report
Description: Get the attached report design, preview in report designer. It takes unacceptable long time to render a report, and users could not get the output finally. Even during the rending, the computer could not do anything else.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
/**
	 * Separator that connects the query parameter values.
	 */
	public static final String PARAMETER_SEPARATOR = "&"; 
	/**
	 * The character to start the query string in the url.
	 */
	public static final String QUERY_CHAR = "?"; 
	/**
	 * Equals operator.
	 */
	public static final String EQUALS_OPERATOR = "="; 
	/**
	 * Suffix of report document.
	 */
	public static final String SUFFIX_REPORT_DOCUMENT = ".rptdocument"; 
	/**
	 * File package name to store the documents.
	 */
	protected static final String DOCUMENTS_DIR = "Documents";
	/**
	 * Report working folder.
	 */
	public static String workingFolder = null;
	/**
	 * Current web application locale.
	 */
	protected static Locale webAppLocale = null;
	/**
	 * Flag indicating that if user can only access the file in working folder.