org.apache.wiki.diff

Class ExternalDiffProvider

java.lang.Object

org.apache.wiki.diff.ExternalDiffProvider

All Implemented Interfaces:

WikiProvider, DiffProvider

public class ExternalDiffProvider
extends Object
implements DiffProvider

This DiffProvider allows external command line tools to be used to generate the diff.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.wiki.diff.DiffProvider

DiffProvider.NullDiffProvider

Field Summary

Fields

Modifier and Type	Field and Description
static String	PROP_DIFFCOMMAND Determines the command to be used for 'diff'.

Fields inherited from interface org.apache.wiki.api.providers.WikiProvider

LATEST_VERSION

Constructor Summary

Constructors

Constructor and Description
ExternalDiffProvider() Creates a new ExternalDiffProvider.

Method Summary

Modifier and Type	Method and Description
String	getProviderInfo()
void	initialize(Engine engine, Properties properties)
String	makeDiffHtml(Context ctx, String p1, String p2) Makes the diff by calling "diff" program.

Methods inherited from class java.lang.Object

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

Field Detail

PROP_DIFFCOMMAND

public static final String PROP_DIFFCOMMAND

Determines the command to be used for 'diff'. This program must be able to output diffs in the unified format. For example 'diff -u %s1 %s2'.

See Also:

Constant Field Values

Constructor Detail

ExternalDiffProvider

public ExternalDiffProvider()

Creates a new ExternalDiffProvider.

Method Detail

getProviderInfo

public String getProviderInfo()

Specified by:

getProviderInfo in interface WikiProvider

See Also:

{@inheritDoc}

initialize

public void initialize(Engine engine,
                       Properties properties)
                throws NoRequiredPropertyException,
                       IOException

Specified by:

initialize in interface WikiProvider

Throws:

NoRequiredPropertyException

IOException

See Also:

WikiProvider.initialize(org.apache.wiki.api.core.Engine, java.util.Properties)

makeDiffHtml

public String makeDiffHtml(Context ctx,
                           String p1,
                           String p2)

Makes the diff by calling "diff" program. The return string is to be XHTML compliant ready to display html. No further processing of this text will be done by the wiki engine.

Specified by:

makeDiffHtml in interface DiffProvider

Parameters:

ctx - The Wiki Context

p1 - the old text

p2 - the new text

Returns:

An XHTML diff.