Package org.apache.jasper.runtime

Class JspRuntimeLibrary

  • public class JspRuntimeLibrary
extends Object
    Bunch of util methods that are used by code generated for useBean, getProperty and setProperty. The __begin, __end stuff is there so that the JSP engine can actually parse this file and inline them if people don't want runtime dependencies on this class. However, I'm not sure if that works so well right now. It got forgotten at some point. -akv
    Author:
    Mandar Raje, Shawn Bayern

    • Constructor Detail

      • JspRuntimeLibrary

        public JspRuntimeLibrary()

    • Method Detail

      • getThrowable

        public static Throwable getThrowable​(javax.servlet.ServletRequest request)
        Returns the value of the javax.servlet.error.exception request attribute value, if present, otherwise the value of the javax.servlet.jsp.jspException request attribute value. This method is called at the beginning of the generated servlet code for a JSP error page, when the "exception" implicit scripting language variable is initialized.

      • coerceToBoolean

        public static boolean coerceToBoolean​(String s)

      • coerceToByte

        public static byte coerceToByte​(String s)

      • coerceToChar

        public static char coerceToChar​(String s)

      • coerceToDouble

        public static double coerceToDouble​(String s)

      • coerceToFloat

        public static float coerceToFloat​(String s)

      • coerceToInt

        public static int coerceToInt​(String s)

      • coerceToShort

        public static short coerceToShort​(String s)

      • coerceToLong

        public static long coerceToLong​(String s)

      • coerce

        public static <T> T coerce​(String s,
                           Class<T> target)

      • toString

        public static String toString​(byte b)

      • toString

        public static String toString​(boolean b)

      • toString

        public static String toString​(short s)

      • toString

        public static String toString​(int i)

      • toString

        public static String toString​(float f)

      • toString

        public static String toString​(long l)

      • toString

        public static String toString​(double d)

      • toString

        public static String toString​(char c)

      • createTypedArray

        public static void createTypedArray​(String propertyName,
                                    Object bean,
                                    Method method,
                                    String[] values,
                                    Class t,
                                    Class propertyEditorClass)
                             throws JasperException
        Create a typed array. This is a special case where params are passed through the request and the property is indexed.
        Throws:
        JasperException

      • escapeQueryString

        public static String escapeQueryString​(String unescString)
        Escape special shell characters.
        Parameters:
        unescString - The string to shell-escape
        Returns:
        The escaped shell string.

      • handleSetPropertyExpression

        public static void handleSetPropertyExpression​(Object bean,
                                               String prop,
                                               String expression,
                                               javax.servlet.jsp.PageContext pageContext,
                                               ProtectedFunctionMapper functionMapper)
                                        throws JasperException
        Use proprietaryEvaluate public static void handleSetPropertyExpression(Object bean, String prop, String expression, PageContext pageContext, VariableResolver variableResolver, FunctionMapper functionMapper ) throws JasperException { try { Method method = getWriteMethod(bean.getClass(), prop); method.invoke(bean, new Object[] { pageContext.getExpressionEvaluator().evaluate( expression, method.getParameterTypes()[0], variableResolver, functionMapper, null ) }); } catch (Exception ex) { throw new JasperException(ex); } }
        Throws:
        JasperException

      • getContextRelativePath

        public static String getContextRelativePath​(javax.servlet.ServletRequest request,
                                            String relativePath)
        Convert a possibly relative resource path into a context-relative resource path that starts with a '/'.
        Parameters:
        request - The servlet request we are processing
        relativePath - The possibly relative resource path

      • include

        public static void include​(javax.servlet.ServletRequest request,
                           javax.servlet.ServletResponse response,
                           String relativePath,
                           javax.servlet.jsp.JspWriter out,
                           boolean flush)
                    throws IOException,
                           javax.servlet.ServletException
        Perform a RequestDispatcher.include() operation, with optional flushing of the response beforehand.
        Parameters:
        request - The servlet request we are processing
        response - The servlet response we are processing
        relativePath - The relative path of the resource to be included
        out - The Writer to whom we are currently writing
        flush - Should we flush before the include is processed?
        Throws:
        IOException - if thrown by the included servlet
        javax.servlet.ServletException - if thrown by the included servlet