Package org.apache.wiki.providers

Class VersioningFileProvider

java.lang.Object

org.apache.wiki.providers.AbstractFileProvider

org.apache.wiki.providers.VersioningFileProvider

All Implemented Interfaces:

PageProvider, WikiProvider

public class VersioningFileProvider
extends AbstractFileProvider

Provides a simple directory based repository for Wiki pages. Pages are held in a directory structure:

    Main.txt
    Foobar.txt
    OLD/
       Main/
          1.txt
          2.txt
          page.properties
       Foobar/
          page.properties
  

In this case, "Main" has three versions, and "Foobar" just one version.

The properties file contains the necessary metainformation (such as author) information of the page. DO NOT MESS WITH IT!

All files have ".txt" appended to make life easier for those who insist on using Windows or other software which makes assumptions on the files contents based on its name.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wiki.providers.AbstractFileProvider

AbstractFileProvider.WikiFileFilter

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	PAGEDIR	Name of the directory where the old versions are stored.
static java.lang.String	PROPERTYFILE	Name of the property file which stores the metadata.

Fields inherited from class org.apache.wiki.providers.AbstractFileProvider

DEFAULT_ENCODING, DEFAULT_MAX_PROPKEYLENGTH, DEFAULT_MAX_PROPLIMIT, DEFAULT_MAX_PROPVALUELENGTH, FILE_EXT, m_encoding, m_engine, MAX_PROPKEYLENGTH, MAX_PROPLIMIT, MAX_PROPVALUELENGTH, PROP_CUSTOMPROP_MAXKEYLENGTH, PROP_CUSTOMPROP_MAXLIMIT, PROP_CUSTOMPROP_MAXVALUELENGTH, PROP_PAGEDIR

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

LATEST_VERSION

Constructor Summary

Constructors

Constructor	Description
VersioningFileProvider()

Method Summary

Modifier and Type	Method	Description
void	deletePage(java.lang.String page)	Removes the relevant page directory under "OLD" -directory as well, but does not remove any extra subdirectories from it.
void	deleteVersion(java.lang.String page, int version)	Deleting versions has never really worked, JSPWiki assumes that version histories are "not gappy".
java.util.Collection<Page>	getAllPages()
Page	getPageInfo(java.lang.String page, int version)	Always returns the latest version, since FileSystemProvider does not support versioning.
java.lang.String	getPageText(java.lang.String page, int version)	This implementation just returns the current version, as filesystem does not provide versioning information for now.
java.lang.String	getProviderInfo()
java.util.List<Page>	getVersionHistory(java.lang.String page)	The FileSystemProvider provides only one version.
void	initialize(Engine engine, java.util.Properties properties)
void	movePage(java.lang.String from, java.lang.String to)
boolean	pageExists(java.lang.String pageName, int version)
void	putPageText(Page page, java.lang.String text)

Methods inherited from class org.apache.wiki.providers.AbstractFileProvider

addCustomProperties, findPage, findPages, getAllChangedSince, getCustomProperties, getPageCount, mangleName, pageExists, setCustomProperties, unmangleName, validateCustomPageProperties

Methods inherited from class java.lang.Object

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

Field Detail

PAGEDIR

public static final java.lang.String PAGEDIR

Name of the directory where the old versions are stored.

See Also:

Constant Field Values

PROPERTYFILE

public static final java.lang.String PROPERTYFILE

Name of the property file which stores the metadata.

See Also:

Constant Field Values

Constructor Detail

VersioningFileProvider

public VersioningFileProvider()

Method Detail

initialize

public void initialize(Engine engine,
                       java.util.Properties properties)
                throws NoRequiredPropertyException,
                       java.io.IOException

Specified by:

initialize in interface WikiProvider

Overrides:

initialize in class AbstractFileProvider

Throws:

java.io.FileNotFoundException - If the specified page directory does not exist.

java.io.IOException - In case the specified page directory is a file, not a directory.

NoRequiredPropertyException

getPageText

public java.lang.String getPageText(java.lang.String page,
                                    int version)
                             throws ProviderException

This implementation just returns the current version, as filesystem does not provide versioning information for now.

Specified by:

getPageText in interface PageProvider

Overrides:

getPageText in class AbstractFileProvider

Throws:

ProviderException

putPageText

public void putPageText(Page page,
                        java.lang.String text)
                 throws ProviderException

Specified by:

putPageText in interface PageProvider

Overrides:

putPageText in class AbstractFileProvider

Throws:

ProviderException

getPageInfo

public Page getPageInfo(java.lang.String page,
                        int version)
                 throws ProviderException

Always returns the latest version, since FileSystemProvider does not support versioning.

Specified by:

getPageInfo in interface PageProvider

Overrides:

getPageInfo in class AbstractFileProvider

Throws:

ProviderException

pageExists

public boolean pageExists(java.lang.String pageName,
                          int version)

Specified by:

pageExists in interface PageProvider

Overrides:

pageExists in class AbstractFileProvider

getVersionHistory

public java.util.List<Page> getVersionHistory(java.lang.String page)
                                       throws ProviderException

The FileSystemProvider provides only one version.

Specified by:

getVersionHistory in interface PageProvider

Overrides:

getVersionHistory in class AbstractFileProvider

Throws:

ProviderException

deletePage

public void deletePage(java.lang.String page)
                throws ProviderException

Removes the relevant page directory under "OLD" -directory as well, but does not remove any extra subdirectories from it. It will only touch those files that it thinks to be WikiPages.

Specified by:

deletePage in interface PageProvider

Overrides:

deletePage in class AbstractFileProvider

Parameters:

page -

Throws:

ProviderException

deleteVersion

public void deleteVersion(java.lang.String page,
                          int version)
                   throws ProviderException

Deleting versions has never really worked, JSPWiki assumes that version histories are "not gappy". Using deleteVersion() is definitely not recommended.

Specified by:

deleteVersion in interface PageProvider

Overrides:

deleteVersion in class AbstractFileProvider

Throws:

ProviderException

getAllPages

public java.util.Collection<Page> getAllPages()
                                       throws ProviderException

Specified by:

getAllPages in interface PageProvider

Overrides:

getAllPages in class AbstractFileProvider

Throws:

ProviderException

getProviderInfo

public java.lang.String getProviderInfo()

Specified by:

getProviderInfo in interface WikiProvider

Overrides:

getProviderInfo in class AbstractFileProvider

movePage

public void movePage(java.lang.String from,
                     java.lang.String to)