Field Detail

• CHUNKSIZE

  public static final int CHUNKSIZE

  See Also:

  Constant Field Values

Constructor Detail

• JspUtil

  public JspUtil()

Method Detail

• getExprInXml

  public static String getExprInXml(String expression)

  Takes a potential expression and converts it into XML form.

  Parameters:

  expression - The expression to convert

  Returns:

  XML view

• checkScope

  public static void checkScope(String scope,
                org.apache.jasper.compiler.Node n,
                ErrorDispatcher err)
                         throws JasperException

  Checks to see if the given scope is valid.

  Parameters:

  scope - The scope to be checked

  n - The Node containing the 'scope' attribute whose value is to be checked

  err - error dispatcher

  Throws:

  JasperException - if scope is not null and different from "page", "request", "session", and "application"

• checkAttributes

  public static void checkAttributes(String typeOfTag,
                     org.apache.jasper.compiler.Node n,
                     JspUtil.ValidAttribute[] validAttributes,
                     ErrorDispatcher err)
                              throws JasperException

  Checks if all mandatory attributes are present and if all attributes present have valid names. Checks attributes specified as XML-style attributes as well as attributes specified using the jsp:attribute standard action.

  Parameters:

  typeOfTag - The tag type

  n - The corresponding node

  validAttributes - The array with the valid attributes

  err - Dispatcher for errors

  Throws:

  JasperException - An error occurred

• escapeXml

  public static String escapeXml(String s)

  Escape the 5 entities defined by XML.

  Parameters:

  s - String to escape

  Returns:

  XML escaped string

• replace

  public static String replace(String name,
               char replace,
               String with)

  Replaces any occurrences of the character replace with the string with.

  Parameters:

  name - String in which character is to be replaced

  replace - The character to replace

  with - The string with which the character is to be replaced

  Returns:

  The supplied string with all instances of replace replaced with with

• booleanValue

  public static boolean booleanValue(String s)

  Convert a String value to 'boolean'. Besides the standard conversions done by Boolean.parseBoolean(s), the value "yes" (ignore case) is also converted to 'true'. If 's' is null, then 'false' is returned.

  Parameters:

  s - the string to be converted

  Returns:

  the boolean value associated with the string s

• toClass

  public static Class<?> toClass(String type,
                 ClassLoader loader)
                          throws ClassNotFoundException

  Returns the Class object associated with the class or interface with the given string name.

  The Class object is determined by passing the given string name to the Class.forName() method, unless the given string name represents a primitive type, in which case it is converted to a Class object by appending ".class" to it (e.g., "int.class").

  Parameters:

  type - The class name, array or primitive type

  loader - The class loader

  Returns:

  the loaded class

  Throws:

  ClassNotFoundException - Loading class failed

• interpreterCall

  public static String interpreterCall(boolean isTagFile,
                       String expression,
                       Class<?> expectedType,
                       String fnmapvar,
                       boolean XmlEscape)

  Produces a String representing a call to the EL interpreter.

  Parameters:

  isTagFile - true if the file is a tag file rather than a JSP

  expression - a String containing zero or more "${}" expressions

  expectedType - the expected type of the interpreted result

  fnmapvar - Variable pointing to a function map.

  XmlEscape - True if the result should do XML escaping

  Returns:

  a String representing a call to the EL interpreter.

• coerceToPrimitiveBoolean

  public static String coerceToPrimitiveBoolean(String s,
                                boolean isNamedAttribute)

• coerceToBoolean

  public static String coerceToBoolean(String s,
                       boolean isNamedAttribute)

• coerceToPrimitiveByte

  public static String coerceToPrimitiveByte(String s,
                             boolean isNamedAttribute)

• coerceToByte

  public static String coerceToByte(String s,
                    boolean isNamedAttribute)

• coerceToChar

  public static String coerceToChar(String s,
                    boolean isNamedAttribute)

• coerceToCharacter

  public static String coerceToCharacter(String s,
                         boolean isNamedAttribute)

• coerceToPrimitiveDouble

  public static String coerceToPrimitiveDouble(String s,
                               boolean isNamedAttribute)

• coerceToDouble

  public static String coerceToDouble(String s,
                      boolean isNamedAttribute)

• coerceToPrimitiveFloat

  public static String coerceToPrimitiveFloat(String s,
                              boolean isNamedAttribute)

• coerceToFloat

  public static String coerceToFloat(String s,
                     boolean isNamedAttribute)

• coerceToInt

  public static String coerceToInt(String s,
                   boolean isNamedAttribute)

• coerceToInteger

  public static String coerceToInteger(String s,
                       boolean isNamedAttribute)

• coerceToPrimitiveShort

  public static String coerceToPrimitiveShort(String s,
                              boolean isNamedAttribute)

• coerceToShort

  public static String coerceToShort(String s,
                     boolean isNamedAttribute)

• coerceToPrimitiveLong

  public static String coerceToPrimitiveLong(String s,
                             boolean isNamedAttribute)

• coerceToLong

  public static String coerceToLong(String s,
                    boolean isNamedAttribute)

• getInputStream

  public static InputStream getInputStream(String fname,
                           JarFile jarFile,
                           JspCompilationContext ctxt,
                           ErrorDispatcher err)
                                    throws JasperException,
                                           IOException

  Throws:

  JasperException

  IOException

• getTagHandlerClassName

  public static String getTagHandlerClassName(String path,
                              String urn,
                              ErrorDispatcher err)
                                       throws JasperException

  Gets the fully-qualified class name of the tag handler corresponding to the given tag file path.

  Parameters:

  path - Tag file path

  urn - The tag identifier

  err - Error dispatcher

  Returns:

  Fully-qualified class name of the tag handler corresponding to the given tag file path

  Throws:

  JasperException - Failed to generate a class name for the tag

• makeJavaPackage

  public static final String makeJavaPackage(String path)

  Converts the given path to a Java package or fully-qualified class name

  Parameters:

  path - Path to convert

  Returns:

  Java package corresponding to the given path

• makeJavaIdentifier

  public static final String makeJavaIdentifier(String identifier)

  Converts the given identifier to a legal Java identifier

  Parameters:

  identifier - Identifier to convert

  Returns:

  Legal Java identifier corresponding to the given identifier

• makeJavaIdentifierForAttribute

  public static final String makeJavaIdentifierForAttribute(String identifier)

  Converts the given identifier to a legal Java identifier to be used for JSP Tag file attribute names.

  Parameters:

  identifier - Identifier to convert

  Returns:

  Legal Java identifier corresponding to the given identifier

• mangleChar

  public static final String mangleChar(char ch)

  Mangle the specified character to create a legal Java class name.

  Parameters:

  ch - The character

  Returns:

  the replacement character as a string

• isJavaKeyword

  public static boolean isJavaKeyword(String key)

  Test whether the argument is a Java keyword.

  Parameters:

  key - The name

  Returns:

  true if the name is a java identifier

• isJavaIdentifier

  public static boolean isJavaIdentifier(String key)

• toJavaSourceTypeFromTld

  public static String toJavaSourceTypeFromTld(String type)

  Handles taking input from TLDs 'java.lang.Object' -> 'java.lang.Object.class' 'int' -> 'int.class' 'void' -> 'Void.TYPE' 'int[]' -> 'int[].class'

  Parameters:

  type - The type from the TLD

  Returns:

  the Java type

• toJavaSourceType

  public static String toJavaSourceType(String type)

  Class.getName() return arrays in the form "[[[<et>", where et, the element type can be one of ZBCDFIJS or L<classname>;. It is converted into forms that can be understood by javac.

  Parameters:

  type - the type to convert

  Returns:

  the equivalent type in Java sources