Package com.iizix.js.build.html

Class YuiJavaScriptCompressor

java.lang.Object

com.iizix.js.build.html.YuiJavaScriptCompressor

All Implemented Interfaces:

Compressor

public class YuiJavaScriptCompressor
extends java.lang.Object
implements Compressor

Basic JavaScript compressor implementation using Yahoo YUI Compressor that could be used by HtmlCompressor for inline JavaScript compression.

Author:

Sergiy Kovalchuk

See Also:

HtmlCompressor.setJavaScriptCompressor(Compressor), Yahoo YUI Compressor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	YuiJavaScriptCompressor.DefaultErrorReporter	Default ErrorReporter implementation that uses System.err stream for error reporting.

Constructor Summary

Constructors

Constructor	Description
YuiJavaScriptCompressor()

Method Summary

Modifier and Type	Method	Description
java.lang.String	compress(java.lang.String source)	The main method that compresses the given source and returns a compressed result.
org.mozilla.javascript.ErrorReporter	getErrorReporter()	Returns ErrorReporter used by YUI Compressor to log error messages during JavasSript compression
int	getLineBreak()	Returns number of symbols per line Yahoo YUI Compressor will use during JavaScript compression.
boolean	isDisableOptimizations()	Returns true if Yahoo YUI Compressor will disable all the built-in micro optimizations during JavaScript compression.
boolean	isNoMunge()	Returns true if Yahoo YUI Compressor will only minify javascript without obfuscating local symbols.
boolean	isPreserveAllSemiColons()	Returns true if Yahoo YUI Compressor will preserve unnecessary semicolons during JavaScript compression.
void	setDisableOptimizations(boolean disableOptimizations)	Tells Yahoo YUI Compressor to disable all the built-in micro optimizations during JavaScript compression.
void	setErrorReporter(org.mozilla.javascript.ErrorReporter errorReporter)	Sets ErrorReporter that YUI Compressor will use for reporting errors during JavaScript compression.
void	setLineBreak(int lineBreak)	Tells Yahoo YUI Compressor to break lines after the specified number of symbols during JavaScript compression.
void	setNoMunge(boolean noMunge)	Tells Yahoo YUI Compressor to only minify javascript without obfuscating local symbols.
void	setPreserveAllSemiColons(boolean preserveAllSemiColons)	Tells Yahoo YUI Compressor to preserve unnecessary semicolons during JavaScript compression.

Methods inherited from class java.lang.Object

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

Constructor Detail

YuiJavaScriptCompressor

public YuiJavaScriptCompressor()

Method Detail

compress

public java.lang.String compress(java.lang.String source)

Description copied from interface: Compressor

The main method that compresses the given source and returns a compressed result.

Specified by:

compress in interface Compressor

Parameters:

source - The source to compress.

Returns:

Compressed result.

isNoMunge

public boolean isNoMunge()

Returns true if Yahoo YUI Compressor will only minify javascript without obfuscating local symbols. This corresponds to --nomunge command line option.

Returns:

nomunge parameter value used for JavaScript compression.

See Also:

Yahoo YUI Compressor

setNoMunge

public void setNoMunge(boolean noMunge)

Tells Yahoo YUI Compressor to only minify javascript without obfuscating local symbols. This corresponds to --nomunge command line option. This option has effect only if JavaScript compression is enabled. Default is false.

Parameters:

noMunge - set true to enable nomunge mode

See Also:

Yahoo YUI Compressor

isPreserveAllSemiColons

public boolean isPreserveAllSemiColons()

Returns true if Yahoo YUI Compressor will preserve unnecessary semicolons during JavaScript compression. This corresponds to --preserve-semi command line option.

Returns:

preserve-semi parameter value used for JavaScript compression.

See Also:

Yahoo YUI Compressor

setPreserveAllSemiColons

public void setPreserveAllSemiColons(boolean preserveAllSemiColons)

Tells Yahoo YUI Compressor to preserve unnecessary semicolons during JavaScript compression. This corresponds to --preserve-semi command line option. This option has effect only if JavaScript compression is enabled. Default is false.

Parameters:

preserveAllSemiColons - set true to enable preserve-semi mode

See Also:

Yahoo YUI Compressor

isDisableOptimizations

public boolean isDisableOptimizations()

Returns true if Yahoo YUI Compressor will disable all the built-in micro optimizations during JavaScript compression. This corresponds to --disable-optimizations command line option.

Returns:

disable-optimizations parameter value used for JavaScript compression.

See Also:

Yahoo YUI Compressor

setDisableOptimizations

public void setDisableOptimizations(boolean disableOptimizations)

Tells Yahoo YUI Compressor to disable all the built-in micro optimizations during JavaScript compression. This corresponds to --disable-optimizations command line option. This option has effect only if JavaScript compression is enabled. Default is false.

Parameters:

disableOptimizations - set true to enable disable-optimizations mode

See Also:

Yahoo YUI Compressor

getLineBreak

public int getLineBreak()

Returns number of symbols per line Yahoo YUI Compressor will use during JavaScript compression. This corresponds to --line-break command line option.

Returns:

line-break parameter value used for JavaScript compression.

See Also:

Yahoo YUI Compressor

setLineBreak

public void setLineBreak(int lineBreak)

Tells Yahoo YUI Compressor to break lines after the specified number of symbols during JavaScript compression. This corresponds to --line-break command line option. This option has effect only if JavaScript compression is enabled. Default is -1 to disable line breaks.

Parameters:

lineBreak - set number of symbols per line

See Also:

Yahoo YUI Compressor

getErrorReporter

public org.mozilla.javascript.ErrorReporter getErrorReporter()

Returns ErrorReporter used by YUI Compressor to log error messages during JavasSript compression

Returns:

ErrorReporter used by YUI Compressor to log error messages during JavasSript compression

See Also:

Yahoo YUI Compressor, Error Reporter Interface

setErrorReporter

public void setErrorReporter(org.mozilla.javascript.ErrorReporter errorReporter)

Sets ErrorReporter that YUI Compressor will use for reporting errors during JavaScript compression. If no ErrorReporter was provided YuiJavaScriptCompressor.DefaultErrorReporter will be used which reports errors to System.err stream.

Parameters:

errorReporter - ErrorReporter that will be used by YUI Compressor

See Also:

YuiJavaScriptCompressor.DefaultErrorReporter, Yahoo YUI Compressor, ErrorReporter Interface