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org.apache.jasper.runtime
Class JspRuntimeLibrary

java.lang.Object
  extended by org.apache.jasper.runtime.JspRuntimeLibrary

public class JspRuntimeLibrary
extends java.lang.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

Nested Class Summary
protected static class JspRuntimeLibrary.PrivilegedIntrospectHelper
           
 
Constructor Summary
JspRuntimeLibrary()
           
 
Method Summary
static java.lang.Object coerce(java.lang.String s, java.lang.Class target)
           
static boolean coerceToBoolean(java.lang.String s)
           
static byte coerceToByte(java.lang.String s)
           
static char coerceToChar(java.lang.String s)
           
static double coerceToDouble(java.lang.String s)
           
static float coerceToFloat(java.lang.String s)
           
static int coerceToInt(java.lang.String s)
           
static long coerceToLong(java.lang.String s)
           
static short coerceToShort(java.lang.String s)
           
static java.lang.Object convert(java.lang.String propertyName, java.lang.String s, java.lang.Class t, java.lang.Class propertyEditorClass)
           
static void createTypedArray(java.lang.String propertyName, java.lang.Object bean, java.lang.reflect.Method method, java.lang.String[] values, java.lang.Class t, java.lang.Class propertyEditorClass)
          Create a typed array.
static java.lang.String decode(java.lang.String encoded)
          Decode an URL formatted string.
static java.lang.String escapeQueryString(java.lang.String unescString)
          Escape special shell characters.
static java.lang.String getContextRelativePath(javax.servlet.ServletRequest request, java.lang.String relativePath)
          Convert a possibly relative resource path into a context-relative resource path that starts with a '/'.
static java.lang.reflect.Method getReadMethod(java.lang.Class beanClass, java.lang.String prop)
           
static java.lang.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.
static java.lang.Object getValueFromBeanInfoPropertyEditor(java.lang.Class attrClass, java.lang.String attrName, java.lang.String attrValue, java.lang.Class propertyEditorClass)
           
static java.lang.Object getValueFromPropertyEditorManager(java.lang.Class attrClass, java.lang.String attrName, java.lang.String attrValue)
           
static java.lang.reflect.Method getWriteMethod(java.lang.Class beanClass, java.lang.String prop)
           
static java.lang.Object handleGetProperty(java.lang.Object o, java.lang.String prop)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, boolean value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, byte value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, char value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, double value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, float value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, int value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, long value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, java.lang.Object value)
           
static void handleSetProperty(java.lang.Object bean, java.lang.String prop, short value)
           
static void handleSetPropertyExpression(java.lang.Object bean, java.lang.String prop, java.lang.String expression, javax.servlet.jsp.PageContext pageContext, ProtectedFunctionMapper functionMapper)
          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); } }
static void include(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.String relativePath, javax.servlet.jsp.JspWriter out, boolean flush)
          Perform a RequestDispatcher.include() operation, with optional flushing of the response beforehand.
static void introspect(java.lang.Object bean, javax.servlet.ServletRequest request)
           
static void introspecthelper(java.lang.Object bean, java.lang.String prop, java.lang.String value, javax.servlet.ServletRequest request, java.lang.String param, boolean ignoreMethodNF)
           
static java.lang.String toString(boolean b)
           
static java.lang.String toString(byte b)
           
static java.lang.String toString(char c)
           
static java.lang.String toString(double d)
           
static java.lang.String toString(float f)
           
static java.lang.String toString(int i)
           
static java.lang.String toString(long l)
           
static java.lang.String toString(java.lang.Object o)
           
static java.lang.String toString(short s)
           
static java.lang.String URLEncode(java.lang.String s, java.lang.String enc)
          URL encodes a string, based on the supplied character encoding.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JspRuntimeLibrary

public JspRuntimeLibrary()
Method Detail

getThrowable

public static java.lang.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(java.lang.String s)

coerceToByte

public static byte coerceToByte(java.lang.String s)

coerceToChar

public static char coerceToChar(java.lang.String s)

coerceToDouble

public static double coerceToDouble(java.lang.String s)

coerceToFloat

public static float coerceToFloat(java.lang.String s)

coerceToInt

public static int coerceToInt(java.lang.String s)

coerceToShort

public static short coerceToShort(java.lang.String s)

coerceToLong

public static long coerceToLong(java.lang.String s)

coerce

public static java.lang.Object coerce(java.lang.String s,
                                      java.lang.Class target)

convert

public static java.lang.Object convert(java.lang.String propertyName,
                                       java.lang.String s,
                                       java.lang.Class t,
                                       java.lang.Class propertyEditorClass)
                                throws JasperException
Throws:
JasperException

introspect

public static void introspect(java.lang.Object bean,
                              javax.servlet.ServletRequest request)
                       throws JasperException
Throws:
JasperException

introspecthelper

public static void introspecthelper(java.lang.Object bean,
                                    java.lang.String prop,
                                    java.lang.String value,
                                    javax.servlet.ServletRequest request,
                                    java.lang.String param,
                                    boolean ignoreMethodNF)
                             throws JasperException
Throws:
JasperException

toString

public static java.lang.String toString(java.lang.Object o)

toString

public static java.lang.String toString(byte b)

toString

public static java.lang.String toString(boolean b)

toString

public static java.lang.String toString(short s)

toString

public static java.lang.String toString(int i)

toString

public static java.lang.String toString(float f)

toString

public static java.lang.String toString(long l)

toString

public static java.lang.String toString(double d)

toString

public static java.lang.String toString(char c)

createTypedArray

public static void createTypedArray(java.lang.String propertyName,
                                    java.lang.Object bean,
                                    java.lang.reflect.Method method,
                                    java.lang.String[] values,
                                    java.lang.Class t,
                                    java.lang.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 java.lang.String escapeQueryString(java.lang.String unescString)
Escape special shell characters.

Parameters:
unescString - The string to shell-escape
Returns:
The escaped shell string.

decode

public static java.lang.String decode(java.lang.String encoded)
Decode an URL formatted string.

Parameters:
encoded - The string to decode.
Returns:
The decoded string.

handleGetProperty

public static java.lang.Object handleGetProperty(java.lang.Object o,
                                                 java.lang.String prop)
                                          throws JasperException
Throws:
JasperException

handleSetPropertyExpression

public static void handleSetPropertyExpression(java.lang.Object bean,
                                               java.lang.String prop,
                                               java.lang.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

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     java.lang.Object value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     int value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     short value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     long value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     double value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     float value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     char value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     byte value)
                              throws JasperException
Throws:
JasperException

handleSetProperty

public static void handleSetProperty(java.lang.Object bean,
                                     java.lang.String prop,
                                     boolean value)
                              throws JasperException
Throws:
JasperException

getWriteMethod

public static java.lang.reflect.Method getWriteMethod(java.lang.Class beanClass,
                                                      java.lang.String prop)
                                               throws JasperException
Throws:
JasperException

getReadMethod

public static java.lang.reflect.Method getReadMethod(java.lang.Class beanClass,
                                                     java.lang.String prop)
                                              throws JasperException
Throws:
JasperException

getValueFromBeanInfoPropertyEditor

public static java.lang.Object getValueFromBeanInfoPropertyEditor(java.lang.Class attrClass,
                                                                  java.lang.String attrName,
                                                                  java.lang.String attrValue,
                                                                  java.lang.Class propertyEditorClass)
                                                           throws JasperException
Throws:
JasperException

getValueFromPropertyEditorManager

public static java.lang.Object getValueFromPropertyEditorManager(java.lang.Class attrClass,
                                                                 java.lang.String attrName,
                                                                 java.lang.String attrValue)
                                                          throws JasperException
Throws:
JasperException

getContextRelativePath

public static java.lang.String getContextRelativePath(javax.servlet.ServletRequest request,
                                                      java.lang.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,
                           java.lang.String relativePath,
                           javax.servlet.jsp.JspWriter out,
                           boolean flush)
                    throws java.io.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:
java.io.IOException - if thrown by the included servlet
javax.servlet.ServletException - if thrown by the included servlet

URLEncode

public static java.lang.String URLEncode(java.lang.String s,
                                         java.lang.String enc)
URL encodes a string, based on the supplied character encoding. This performs the same function as java.next.URLEncode.encode in J2SDK1.4, and should be removed if the only platform supported is 1.4 or higher.

Parameters:
s - The String to be URL encoded.
enc - The character encoding
Returns:
The URL encoded String
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