Package edu.mit.simile.butterfly

Class LinkRewriter

java.lang.Object

java.io.Writer

java.io.PrintWriter

edu.mit.simile.butterfly.LinkRewriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class LinkRewriter
extends PrintWriter

This is a special PrintWriter that is capable of incrementally looking for strings of the form "[#name#]" and replace the module "name" with the URL where the named module is actually mounted. This allows modules to be agnostic to where their dependencies are mount, making it easier to reuse modules across different web applications. NOTE: great care has been taken in making sure that this writer is incremental, meaning that works by minimizing the amount of buffering that it needs to operate. This is because we don't want such rewriting to be an impact for the perceived performance of responses.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LinkRewriter.State

Field Summary

Fields inherited from class java.io.PrintWriter

out

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor	Description
LinkRewriter(PrintWriter writer, ButterflyModule module)
LinkRewriter(PrintWriter writer, ButterflyModule module, String baseURL)

Method Summary

Modifier and Type	Method	Description
void	write(char[] buf)
void	write(char[] buf, int off, int len)
void	write(int c)
void	write(String s)
void	write(String s, int off, int len)

Methods inherited from class java.io.PrintWriter

append, append, append, checkError, clearError, close, flush, format, format, print, print, print, print, print, print, print, print, print, printf, printf, println, println, println, println, println, println, println, println, println, println, setError

Methods inherited from class java.io.Writer

nullWriter

Methods inherited from class java.lang.Object

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

Constructor Detail

LinkRewriter

public LinkRewriter(PrintWriter writer,
                    ButterflyModule module)

LinkRewriter

public LinkRewriter(PrintWriter writer,
                    ButterflyModule module,
                    String baseURL)

Method Detail

write

public void write(char[] buf,
                  int off,
                  int len)

Overrides:

write in class PrintWriter

write

public void write(char[] buf)

Overrides:

write in class PrintWriter

write

public void write(String s)

Overrides:

write in class PrintWriter

write

public void write(String s,
                  int off,
                  int len)

Overrides:

write in class PrintWriter

write

public void write(int c)

Overrides:

write in class PrintWriter