Class TagFileProcessor

java.lang.Object

org.apache.jasper.compiler.TagFileProcessor

public class TagFileProcessor
extends Object

1. Processes and extracts the directive info in a tag file. 2. Compiles and loads tag files used in a JSP file.

Author:

Kin-man Chung

Constructor Summary

Constructors

Constructor	Description
TagFileProcessor()

Method Summary

Modifier and Type	Method	Description
void	loadTagFiles(Compiler compiler, Node.Nodes page)	Implements a phase of the translation that compiles (if necessary) the tag files used in a JSP files.
static TagInfo	parseTagFileDirectives(ParserController pc, String name, String path, Jar jar, TagLibraryInfo tagLibInfo)	Parses the tag file, and collects information on the directives included in it.
void	removeProtoTypeFiles(String classFileName)	Removed the java and class files for the tag prototype generated from the current compilation.

Methods inherited from class java.lang.Object

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

Constructor Details

TagFileProcessor

public TagFileProcessor()

Method Details

parseTagFileDirectives

public static TagInfo parseTagFileDirectives(ParserController pc,
 String name,
 String path,
 Jar jar,
 TagLibraryInfo tagLibInfo)
                                      throws JasperException

Parses the tag file, and collects information on the directives included in it. The method is used to obtain the info on the tag file, when the handler that it represents is referenced. The tag file is not compiled here.

Parameters:

pc - the current ParserController used in this compilation

name - the tag name as specified in the TLD

path - the path for the tagfile

jar - the Jar resource containing the tag file

tagLibInfo - the TagLibraryInfo object associated with this TagInfo

Returns:

a TagInfo object assembled from the directives in the tag file.

Throws:

JasperException - If an error occurs during parsing

loadTagFiles

public void loadTagFiles(Compiler compiler,
 Node.Nodes page)
                  throws JasperException

Implements a phase of the translation that compiles (if necessary) the tag files used in a JSP files. The directives in the tag files are assumed to have been processed and encapsulated as TagFileInfo in the CustomTag nodes.

Parameters:

compiler - Compiler to use to compile tag files

page - The page from to scan for tag files to compile

Throws:

JasperException - If an error occurs during the scan or compilation

removeProtoTypeFiles

public void removeProtoTypeFiles(String classFileName)

Removed the java and class files for the tag prototype generated from the current compilation.

Parameters:

classFileName - If non-null, remove only the class file with this name.