Package org.apache.jasper.runtime

Class PageContextImpl

  • public class PageContextImpl
extends javax.servlet.jsp.PageContext
    Implementation of the PageContext class from the JSP spec.

    • Constructor Summary

      Constructors 
      Constructor Description
      PageContextImpl​(javax.servlet.jsp.JspFactory factory)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private void _initialize​(javax.servlet.Servlet servlet, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.String errorPageURL, boolean needsSession, int bufferSize, boolean autoFlush)  
      private java.lang.Object doFindAttribute​(java.lang.String name)  
      private java.lang.Object doGetAttribute​(java.lang.String name)  
      private java.lang.Object doGetAttribute​(java.lang.String name, int scope)  
      private java.util.Enumeration<java.lang.String> doGetAttributeNamesInScope​(int scope)  
      private int doGetAttributeScope​(java.lang.String name)  
      private void doHandlePageException​(java.lang.Throwable t)  
      private void doRemoveAttribute​(java.lang.String name)  
      private void doRemoveAttribute​(java.lang.String name, int scope)  
      private void doSetAttribute​(java.lang.String name, java.lang.Object attribute)  
      private void doSetAttribute​(java.lang.String name, java.lang.Object o, int scope)  
      static java.lang.Object evaluateExpression​(java.lang.String expression, java.lang.Class expectedType, javax.servlet.jsp.PageContext pageContext, ProtectedFunctionMapper functionMap)
      Evaluates an EL expression
      java.lang.Object findAttribute​(java.lang.String name)  
      void forward​(java.lang.String relativeUrlPath)  
      private java.lang.String getAbsolutePathRelativeToContext​(java.lang.String relativeUrlPath)  
      java.lang.Object getAttribute​(java.lang.String name)  
      java.lang.Object getAttribute​(java.lang.String name, int scope)  
      java.util.Enumeration<java.lang.String> getAttributeNamesInScope​(int scope)  
      int getAttributesScope​(java.lang.String name)  
      javax.el.ELContext getELContext()  
      private javax.el.ELResolver getELResolver()  
      java.lang.Exception getException()
      Returns the exception associated with this page context, if any.
      javax.servlet.jsp.el.ExpressionEvaluator getExpressionEvaluator()
      Provides programmatic access to the ExpressionEvaluator.
      private static javax.el.ExpressionFactory getExpressionFactory​(javax.servlet.jsp.PageContext pageContext)  
      (package private) JspApplicationContextImpl getJspApplicationContext()  
      static javax.el.MethodExpression getMethodExpression​(java.lang.String expression, javax.servlet.jsp.PageContext pageContext, javax.el.FunctionMapper functionMap, java.lang.Class expectedType, java.lang.Class[] paramTypes)  
      javax.servlet.jsp.JspWriter getOut()  
      java.lang.Object getPage()  
      javax.servlet.ServletRequest getRequest()  
      javax.servlet.ServletResponse getResponse()  
      javax.servlet.Servlet getServlet()  
      javax.servlet.ServletConfig getServletConfig()  
      javax.servlet.ServletContext getServletContext()  
      javax.servlet.http.HttpSession getSession()  
      static javax.el.ValueExpression getValueExpression​(java.lang.String expression, javax.servlet.jsp.PageContext pageContext, java.lang.Class expectedType, javax.el.FunctionMapper functionMap)  
      javax.servlet.jsp.el.VariableResolver getVariableResolver()  
      void handlePageException​(java.lang.Exception ex)  
      void handlePageException​(java.lang.Throwable t)  
      void include​(java.lang.String relativeUrlPath)  
      void include​(java.lang.String relativeUrlPath, boolean flush)  
      void initialize​(javax.servlet.Servlet servlet, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.String errorPageURL, boolean needsSession, int bufferSize, boolean autoFlush)  
      private void initializePageScopeNameTable()  
      javax.servlet.jsp.JspWriter popBody()  
      javax.servlet.jsp.tagext.BodyContent pushBody()  
      javax.servlet.jsp.JspWriter pushBody​(java.io.Writer writer)  
      void release()  
      void removeAttribute​(java.lang.String name)  
      void removeAttribute​(java.lang.String name, int scope)  
      void setAttribute​(java.lang.String name, java.lang.Object attribute)  
      void setAttribute​(java.lang.String name, java.lang.Object o, int scope)  
      static void setMethodVariable​(javax.servlet.jsp.PageContext pageContext, java.lang.String variable, javax.el.MethodExpression expression)  
      static void setValueVariable​(javax.servlet.jsp.PageContext pageContext, java.lang.String variable, javax.el.ValueExpression expression)  

      • Methods inherited from class javax.servlet.jsp.PageContext

        getErrorData

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • log

        private static java.util.logging.Logger log

      • depth

        private int depth

      • servlet

        private javax.servlet.Servlet servlet

      • config

        private javax.servlet.ServletConfig config

      • context

        private javax.servlet.ServletContext context

      • factory

        private javax.servlet.jsp.JspFactory factory

      • needsSession

        private boolean needsSession

      • errorPageURL

        private java.lang.String errorPageURL

      • bufferSize

        private int bufferSize

      • elResolver

        private javax.el.ELResolver elResolver

      • elContext

        private javax.el.ELContext elContext

      • attributes

        private java.util.HashMap<java.lang.String,​java.lang.Object> attributes

      • isNametableInitialized

        private boolean isNametableInitialized

      • request

        private javax.servlet.ServletRequest request

      • response

        private javax.servlet.ServletResponse response

      • session

        private javax.servlet.http.HttpSession session

      • out

        private javax.servlet.jsp.JspWriter out

    • Constructor Detail

      • PageContextImpl

        PageContextImpl​(javax.servlet.jsp.JspFactory factory)

    • Method Detail

      • initialize

        public void initialize​(javax.servlet.Servlet servlet,
                       javax.servlet.ServletRequest request,
                       javax.servlet.ServletResponse response,
                       java.lang.String errorPageURL,
                       boolean needsSession,
                       int bufferSize,
                       boolean autoFlush)
                throws java.io.IOException
        Specified by:
        initialize in class javax.servlet.jsp.PageContext
        Throws:
        java.io.IOException

      • _initialize

        private void _initialize​(javax.servlet.Servlet servlet,
                         javax.servlet.ServletRequest request,
                         javax.servlet.ServletResponse response,
                         java.lang.String errorPageURL,
                         boolean needsSession,
                         int bufferSize,
                         boolean autoFlush)
                  throws java.io.IOException
        Throws:
        java.io.IOException

      • initializePageScopeNameTable

        private void initializePageScopeNameTable()

      • release

        public void release()
        Specified by:
        release in class javax.servlet.jsp.PageContext

      • getAttribute

        public java.lang.Object getAttribute​(java.lang.String name)
        Specified by:
        getAttribute in class javax.servlet.jsp.JspContext

      • doGetAttribute

        private java.lang.Object doGetAttribute​(java.lang.String name)

      • getAttribute

        public java.lang.Object getAttribute​(java.lang.String name,
                                     int scope)
        Specified by:
        getAttribute in class javax.servlet.jsp.JspContext

      • doGetAttribute

        private java.lang.Object doGetAttribute​(java.lang.String name,
                                        int scope)

      • setAttribute

        public void setAttribute​(java.lang.String name,
                         java.lang.Object attribute)
        Specified by:
        setAttribute in class javax.servlet.jsp.JspContext

      • doSetAttribute

        private void doSetAttribute​(java.lang.String name,
                            java.lang.Object attribute)

      • setAttribute

        public void setAttribute​(java.lang.String name,
                         java.lang.Object o,
                         int scope)
        Specified by:
        setAttribute in class javax.servlet.jsp.JspContext

      • doSetAttribute

        private void doSetAttribute​(java.lang.String name,
                            java.lang.Object o,
                            int scope)

      • removeAttribute

        public void removeAttribute​(java.lang.String name,
                            int scope)
        Specified by:
        removeAttribute in class javax.servlet.jsp.JspContext

      • doRemoveAttribute

        private void doRemoveAttribute​(java.lang.String name,
                               int scope)

      • getAttributesScope

        public int getAttributesScope​(java.lang.String name)
        Specified by:
        getAttributesScope in class javax.servlet.jsp.JspContext

      • doGetAttributeScope

        private int doGetAttributeScope​(java.lang.String name)

      • findAttribute

        public java.lang.Object findAttribute​(java.lang.String name)
        Specified by:
        findAttribute in class javax.servlet.jsp.JspContext

      • doFindAttribute

        private java.lang.Object doFindAttribute​(java.lang.String name)

      • getAttributeNamesInScope

        public java.util.Enumeration<java.lang.String> getAttributeNamesInScope​(int scope)
        Specified by:
        getAttributeNamesInScope in class javax.servlet.jsp.JspContext

      • doGetAttributeNamesInScope

        private java.util.Enumeration<java.lang.String> doGetAttributeNamesInScope​(int scope)

      • removeAttribute

        public void removeAttribute​(java.lang.String name)
        Specified by:
        removeAttribute in class javax.servlet.jsp.JspContext

      • doRemoveAttribute

        private void doRemoveAttribute​(java.lang.String name)

      • getOut

        public javax.servlet.jsp.JspWriter getOut()
        Specified by:
        getOut in class javax.servlet.jsp.JspContext

      • getSession

        public javax.servlet.http.HttpSession getSession()
        Specified by:
        getSession in class javax.servlet.jsp.PageContext

      • getServlet

        public javax.servlet.Servlet getServlet()

      • getServletConfig

        public javax.servlet.ServletConfig getServletConfig()
        Specified by:
        getServletConfig in class javax.servlet.jsp.PageContext

      • getServletContext

        public javax.servlet.ServletContext getServletContext()
        Specified by:
        getServletContext in class javax.servlet.jsp.PageContext

      • getRequest

        public javax.servlet.ServletRequest getRequest()
        Specified by:
        getRequest in class javax.servlet.jsp.PageContext

      • getResponse

        public javax.servlet.ServletResponse getResponse()
        Specified by:
        getResponse in class javax.servlet.jsp.PageContext

      • getException

        public java.lang.Exception getException()
        Returns the exception associated with this page context, if any. Added wrapping for Throwables to avoid ClassCastException (see Bugzilla 31171 for details).
        Specified by:
        getException in class javax.servlet.jsp.PageContext
        Returns:
        The Exception associated with this page context, if any.

      • getPage

        public java.lang.Object getPage()
        Specified by:
        getPage in class javax.servlet.jsp.PageContext

      • getAbsolutePathRelativeToContext

        private final java.lang.String getAbsolutePathRelativeToContext​(java.lang.String relativeUrlPath)

      • include

        public void include​(java.lang.String relativeUrlPath)
             throws javax.servlet.ServletException,
                    java.io.IOException
        Specified by:
        include in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        java.io.IOException

      • include

        public void include​(java.lang.String relativeUrlPath,
                    boolean flush)
             throws javax.servlet.ServletException,
                    java.io.IOException
        Specified by:
        include in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        java.io.IOException

      • getVariableResolver

        public javax.servlet.jsp.el.VariableResolver getVariableResolver()
        Specified by:
        getVariableResolver in class javax.servlet.jsp.JspContext

      • getELResolver

        private javax.el.ELResolver getELResolver()

      • getELContext

        public javax.el.ELContext getELContext()
        Specified by:
        getELContext in class javax.servlet.jsp.JspContext

      • forward

        public void forward​(java.lang.String relativeUrlPath)
             throws javax.servlet.ServletException,
                    java.io.IOException
        Specified by:
        forward in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        java.io.IOException

      • pushBody

        public javax.servlet.jsp.tagext.BodyContent pushBody()
        Overrides:
        pushBody in class javax.servlet.jsp.PageContext

      • pushBody

        public javax.servlet.jsp.JspWriter pushBody​(java.io.Writer writer)
        Overrides:
        pushBody in class javax.servlet.jsp.JspContext

      • popBody

        public javax.servlet.jsp.JspWriter popBody()
        Overrides:
        popBody in class javax.servlet.jsp.JspContext

      • getExpressionEvaluator

        public javax.servlet.jsp.el.ExpressionEvaluator getExpressionEvaluator()
        Provides programmatic access to the ExpressionEvaluator. The JSP Container must return a valid instance of an ExpressionEvaluator that can parse EL expressions.
        Specified by:
        getExpressionEvaluator in class javax.servlet.jsp.JspContext

      • handlePageException

        public void handlePageException​(java.lang.Exception ex)
                         throws java.io.IOException,
                                javax.servlet.ServletException
        Specified by:
        handlePageException in class javax.servlet.jsp.PageContext
        Throws:
        java.io.IOException
        javax.servlet.ServletException

      • handlePageException

        public void handlePageException​(java.lang.Throwable t)
                         throws java.io.IOException,
                                javax.servlet.ServletException
        Specified by:
        handlePageException in class javax.servlet.jsp.PageContext
        Throws:
        java.io.IOException
        javax.servlet.ServletException

      • doHandlePageException

        private void doHandlePageException​(java.lang.Throwable t)
                            throws java.io.IOException,
                                   javax.servlet.ServletException
        Throws:
        java.io.IOException
        javax.servlet.ServletException

      • getExpressionFactory

        private static javax.el.ExpressionFactory getExpressionFactory​(javax.servlet.jsp.PageContext pageContext)

      • evaluateExpression

        public static java.lang.Object evaluateExpression​(java.lang.String expression,
                                                  java.lang.Class expectedType,
                                                  javax.servlet.jsp.PageContext pageContext,
                                                  ProtectedFunctionMapper functionMap)
                                           throws javax.el.ELException
        Evaluates an EL expression
        Parameters:
        expression - The expression to be evaluated
        expectedType - The expected resulting type
        pageContext - The page context
        functionMap - Maps prefix and name to Method
        Returns:
        The result of the evaluation
        Throws:
        javax.el.ELException

      • getValueExpression

        public static javax.el.ValueExpression getValueExpression​(java.lang.String expression,
                                                          javax.servlet.jsp.PageContext pageContext,
                                                          java.lang.Class expectedType,
                                                          javax.el.FunctionMapper functionMap)

      • getMethodExpression

        public static javax.el.MethodExpression getMethodExpression​(java.lang.String expression,
                                                            javax.servlet.jsp.PageContext pageContext,
                                                            javax.el.FunctionMapper functionMap,
                                                            java.lang.Class expectedType,
                                                            java.lang.Class[] paramTypes)

      • setValueVariable

        public static void setValueVariable​(javax.servlet.jsp.PageContext pageContext,
                                    java.lang.String variable,
                                    javax.el.ValueExpression expression)

      • setMethodVariable

        public static void setMethodVariable​(javax.servlet.jsp.PageContext pageContext,
                                     java.lang.String variable,
                                     javax.el.MethodExpression expression)