com.googlecode.htmlcompressor.compressor

Class XmlCompressor

java.lang.Object

com.googlecode.htmlcompressor.compressor.XmlCompressor

All Implemented Interfaces:

Compressor

public class XmlCompressor
extends Object
implements Compressor

Class that compresses given XML source by removing comments, extra spaces and line breaks while preserving content within CDATA blocks.

Author:

Sergiy Kovalchuk

Field Summary

Fields

Modifier and Type	Field and Description
protected static Pattern	cdataPattern The Constant cdataPattern.
protected static Pattern	commentPattern The Constant commentPattern.
protected static Pattern	intertagPattern The Constant intertagPattern.
protected static Pattern	multispacePattern The Constant multispacePattern.
protected static Pattern	tagEndSpacePattern The Constant tagEndSpacePattern.
protected static Pattern	tagPropertyPattern The Constant tagPropertyPattern.
protected static String	tempCdataBlock The Constant tempCdataBlock.
protected static Pattern	tempCdataPattern The Constant tempCdataPattern.

Constructor Summary

Constructors

Constructor and Description
XmlCompressor()

Method Summary

Modifier and Type	Method and Description
String	compress(String xml) The main method that compresses given XML source and returns compressed result.
boolean	isEnabled() Returns true if compression is enabled.
boolean	isRemoveComments() Returns true if all XML comments will be removed.
boolean	isRemoveIntertagSpaces() Returns true if all inter-tag whitespace characters will be removed.
protected String	preserveBlocks(String xml, List<String> cdataBlocks) Preserve blocks.
protected String	processXml(String xml) Process xml.
protected String	removeComments(String xml) Removes the comments.
protected String	removeIntertagSpaces(String xml) Removes the intertag spaces.
protected String	removeSpacesInsideTags(String xml) Removes the spaces inside tags.
protected String	returnBlocks(String xml, List<String> cdataBlocks) Return blocks.
void	setEnabled(boolean enabled) If set to false all compression will be bypassed.
void	setRemoveComments(boolean removeComments) If set to true all XML comments will be removed.
void	setRemoveIntertagSpaces(boolean removeIntertagSpaces) If set to true all inter-tag whitespace characters will be removed.

Methods inherited from class java.lang.Object

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

Field Detail

tempCdataBlock

protected static final String tempCdataBlock

The Constant tempCdataBlock.

See Also:

Constant Field Values

cdataPattern

protected static final Pattern cdataPattern

The Constant cdataPattern.

commentPattern

protected static final Pattern commentPattern

The Constant commentPattern.

intertagPattern

protected static final Pattern intertagPattern

The Constant intertagPattern.

tagEndSpacePattern

protected static final Pattern tagEndSpacePattern

The Constant tagEndSpacePattern.

multispacePattern

protected static final Pattern multispacePattern

The Constant multispacePattern.

tagPropertyPattern

protected static final Pattern tagPropertyPattern

The Constant tagPropertyPattern.

tempCdataPattern

protected static final Pattern tempCdataPattern

The Constant tempCdataPattern.

Constructor Detail

XmlCompressor

public XmlCompressor()

Method Detail

compress

public String compress(String xml)

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

Specified by:

compress in interface Compressor

Parameters:

xml - XML content to compress

Returns:

compressed content.

preserveBlocks

protected String preserveBlocks(String xml,
                                List<String> cdataBlocks)

Preserve blocks.

Parameters:

xml - the xml

cdataBlocks - the cdata blocks

Returns:

the string

returnBlocks

protected String returnBlocks(String xml,
                              List<String> cdataBlocks)

Return blocks.

Parameters:

xml - the xml

cdataBlocks - the cdata blocks

Returns:

the string

processXml

protected String processXml(String xml)

Process xml.

Parameters:

xml - the xml

Returns:

the string

removeSpacesInsideTags

protected String removeSpacesInsideTags(String xml)

Removes the spaces inside tags.

Parameters:

xml - the xml

Returns:

the string

removeIntertagSpaces

protected String removeIntertagSpaces(String xml)

Removes the intertag spaces.

Parameters:

xml - the xml

Returns:

the string

removeComments

protected String removeComments(String xml)

Removes the comments.

Parameters:

xml - the xml

Returns:

the string

isEnabled

public boolean isEnabled()

Returns true if compression is enabled.

Returns:

true if compression is enabled.

setEnabled

public void setEnabled(boolean enabled)

If set to false all compression will be bypassed. Might be useful for testing purposes. Default is true.

Parameters:

enabled - set false to bypass all compression

isRemoveComments

public boolean isRemoveComments()

Returns true if all XML comments will be removed.

Returns:

true if all XML comments will be removed

setRemoveComments

public void setRemoveComments(boolean removeComments)

If set to true all XML comments will be removed. Default is true.

Parameters:

removeComments - set true to remove all XML comments

isRemoveIntertagSpaces

public boolean isRemoveIntertagSpaces()

Returns true if all inter-tag whitespace characters will be removed.

Returns:

true if all inter-tag whitespace characters will be removed.

setRemoveIntertagSpaces

public void setRemoveIntertagSpaces(boolean removeIntertagSpaces)

If set to true all inter-tag whitespace characters will be removed. Default is true.

Parameters:

removeIntertagSpaces - set true to remove all inter-tag whitespace characters