org.apache.catalina.ssi
Class SSIProcessor

java.lang.Object
  org.apache.catalina.ssi.SSIProcessor

public class SSIProcessor
extends java.lang.Object

The entry point to SSI processing. This class does the actual parsing, delegating to the SSIMediator, SSICommand, and SSIExternalResolver as necessary[

Version:

$Revision: 1237 $, $Date: 2009-11-03 02:55:48 +0100 (Tue, 03 Nov 2009) $

Author:

Dan Sandberg, David Becker

Field Summary

protected static int	BUFFER_SIZE
protected static java.lang.String	COMMAND_END The end pattern
protected static java.lang.String	COMMAND_START The start pattern
protected java.util.HashMap	commands
protected int	debug
protected SSIExternalResolver	ssiExternalResolver

Constructor Summary

SSIProcessor(SSIExternalResolver ssiExternalResolver, int debug)

Method Summary

protected void	addBuiltinCommands()
void	addCommand(java.lang.String name, SSICommand command)
protected boolean	charCmp(java.lang.String buf, int index, java.lang.String command)
protected boolean	isQuote(char c)
protected boolean	isSpace(char c)
protected java.lang.String[]	parseParamNames(java.lang.StringBuilder cmd, int start) Parse a StringBuilder and take out the param type token.
protected java.lang.String[]	parseParamValues(java.lang.StringBuilder cmd, int start, int count) Parse a StringBuilder and take out the param token.
long	process(java.io.Reader reader, long lastModifiedDate, java.io.PrintWriter writer) Process a file with server-side commands, reading from reader and writing the processed version to writer.

Methods inherited from class java.lang.Object

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

Field Detail

COMMAND_START

protected static final java.lang.String COMMAND_START

The start pattern

See Also:

Constant Field Values

COMMAND_END

protected static final java.lang.String COMMAND_END

The end pattern

See Also:

Constant Field Values

BUFFER_SIZE

protected static final int BUFFER_SIZE

See Also:

Constant Field Values

ssiExternalResolver

protected SSIExternalResolver ssiExternalResolver

commands

protected java.util.HashMap commands

debug

protected int debug

Constructor Detail

SSIProcessor

public SSIProcessor(SSIExternalResolver ssiExternalResolver,
                    int debug)

Method Detail

addBuiltinCommands

protected void addBuiltinCommands()

addCommand

public void addCommand(java.lang.String name,
                       SSICommand command)

process

public long process(java.io.Reader reader,
                    long lastModifiedDate,
                    java.io.PrintWriter writer)
             throws java.io.IOException

Process a file with server-side commands, reading from reader and writing the processed version to writer. NOTE: We really should be doing this in a streaming way rather than converting it to an array first.

Parameters:

reader - the reader to read the file containing SSIs from

writer - the writer to write the file with the SSIs processed.

Returns:

the most current modified date resulting from any SSI commands

Throws:

java.io.IOException - when things go horribly awry. Should be unlikely since the SSICommand usually catches 'normal' IOExceptions.

parseParamNames

protected java.lang.String[] parseParamNames(java.lang.StringBuilder cmd,
                                             int start)

Parse a StringBuilder and take out the param type token. Called from requestHandler

Parameters:

cmd - a value of type 'StringBuilder'

Returns:

a value of type 'String[]'

parseParamValues

protected java.lang.String[] parseParamValues(java.lang.StringBuilder cmd,
                                              int start,
                                              int count)

Parse a StringBuilder and take out the param token. Called from requestHandler

Parameters:

cmd - a value of type 'StringBuilder'

Returns:

a value of type 'String[]'

charCmp

protected boolean charCmp(java.lang.String buf,
                          int index,
                          java.lang.String command)

isSpace

protected boolean isSpace(char c)

isQuote

protected boolean isQuote(char c)