org.opencms.file.wrapper
Class A_CmsResourceWrapper

java.lang.Object
  org.opencms.file.wrapper.A_CmsResourceWrapper

All Implemented Interfaces:

I_CmsResourceWrapper

Direct Known Subclasses:

A_CmsResourceExtensionWrapper, CmsResourceWrapperPropertyFile, CmsResourceWrapperSystemFolder, CmsResourceWrapperXmlPage

public abstract class A_CmsResourceWrapper
extends java.lang.Object
implements I_CmsResourceWrapper

Default abstract implementation of the interface I_CmsResourceWrapper.

This class returns for all methods that the action is not handled by the resource wrapper.

Subclasses can only implement those methods where they want to change the default behaviour.

Since:

6.5.6

Version:

$Revision: 1.9 $

Author:

Peter Bonrad

Field Summary

protected boolean

m_isWrappedResource Is handled by this resource wrapper.

Constructor Summary

A_CmsResourceWrapper()

Method Summary

java.util.List	addResourcesToFolder(CmsObject cms, java.lang.String resourcename, CmsResourceFilter filter) Here it is possible to add additional (virtual) child resources to those already existing in the VFS.
boolean	copyResource(CmsObject cms, java.lang.String source, java.lang.String destination, CmsResource.CmsResourceCopyMode siblingMode) Copies a resource.
CmsResource	createResource(CmsObject cms, java.lang.String resourcename, int type, byte[] content, java.util.List properties) Creates a new resource of the given resource type with the provided content and properties.
boolean	deleteResource(CmsObject cms, java.lang.String resourcename, CmsResource.CmsResourceDeleteMode siblingMode) Deletes a resource given its name.
CmsLock	getLock(CmsObject cms, CmsResource resource) Returns the lock for the resource.
boolean	lockResource(CmsObject cms, java.lang.String resourcename) Locks a resource.
boolean	moveResource(CmsObject cms, java.lang.String source, java.lang.String destination) Moves a resource to the given destination.
CmsFile	readFile(CmsObject cms, java.lang.String resourcename, CmsResourceFilter filter) Reads a file resource (including it's binary content) from the VFS, using the specified resource filter.
CmsResource	readResource(CmsObject cms, java.lang.String resourcename, CmsResourceFilter filter) Reads a resource from the VFS, using the specified resource filter.
java.lang.String	restoreLink(CmsObject cms, java.lang.String uri) Returns the link to a existing resource in the VFS for the uri.
java.lang.String	rewriteLink(CmsObject cms, CmsResource res) Returns the link how it is for the resource after using this resource wrapper.
boolean	unlockResource(CmsObject cms, java.lang.String resourcename) Unlocks a resource.
CmsResource	wrapResource(CmsObject cms, CmsResource resource) Changes the given resource based on the implementation of this wrapper.
CmsFile	writeFile(CmsObject cms, CmsFile resource) Writes a resource, including it's content.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opencms.file.wrapper.I_CmsResourceWrapper

isWrappedResource

Field Detail

m_isWrappedResource

protected boolean m_isWrappedResource

Is handled by this resource wrapper.

Constructor Detail

A_CmsResourceWrapper

public A_CmsResourceWrapper()

Method Detail

addResourcesToFolder

public java.util.List addResourcesToFolder(CmsObject cms,
                                           java.lang.String resourcename,
                                           CmsResourceFilter filter)
                                    throws CmsException

Description copied from interface: I_CmsResourceWrapper

Here it is possible to add additional (virtual) child resources to those already existing in the VFS.

Specified by:

addResourcesToFolder in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resourcename - the full path of the resource where to add the child resources for

filter - the resource filter to use

Returns:

a list of all additionaly child CmsResources

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.addResourcesToFolder(org.opencms.file.CmsObject, java.lang.String, org.opencms.file.CmsResourceFilter)

copyResource

public boolean copyResource(CmsObject cms,
                            java.lang.String source,
                            java.lang.String destination,
                            CmsResource.CmsResourceCopyMode siblingMode)
                     throws CmsException,
                            CmsIllegalArgumentException

Description copied from interface: I_CmsResourceWrapper

Copies a resource.

First should be a check if the source and/or the destination are handled by this resource wrapper.

It is possible that the path in the source or in the destination are virtual paths and so has to be translated into valid paths existing in the VFS to copy the resource.

Specified by:

copyResource in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

source - the name of the resource to copy

destination - the name of the copy destination with complete path

siblingMode - indicates how to handle siblings during copy

Returns:

true if the copy action was handled by this resource wrapper otherwise false

Throws:

CmsException - if something goes wrong

CmsIllegalArgumentException - if the destination argument is null or of length 0

See Also:

I_CmsResourceWrapper.copyResource(org.opencms.file.CmsObject, java.lang.String, java.lang.String, org.opencms.file.CmsResource.CmsResourceCopyMode)

createResource

public CmsResource createResource(CmsObject cms,
                                  java.lang.String resourcename,
                                  int type,
                                  byte[] content,
                                  java.util.List properties)
                           throws CmsException,
                                  CmsIllegalArgumentException

Description copied from interface: I_CmsResourceWrapper

Creates a new resource of the given resource type with the provided content and properties.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to create the resource.

Specified by:

createResource in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

resourcename - the name of the resource to create (full path)

type - the type of the resource to create

content - the content for the new resource

properties - the properties for the new resource

Returns:

the created resource or null if not handled by this resource wrapper

Throws:

CmsException - if something goes wrong

CmsIllegalArgumentException - if the source argument is null or of length 0

See Also:

I_CmsResourceWrapper.createResource(org.opencms.file.CmsObject, java.lang.String, int, byte[], java.util.List)

deleteResource

public boolean deleteResource(CmsObject cms,
                              java.lang.String resourcename,
                              CmsResource.CmsResourceDeleteMode siblingMode)
                       throws CmsException

Description copied from interface: I_CmsResourceWrapper

Deletes a resource given its name.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to delete the resource.

Specified by:

deleteResource in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

resourcename - the name of the resource to delete

siblingMode - indicates how to handle siblings of the deleted resource

Returns:

true if the delete action was handled by this resource wrapper otherwise false

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.deleteResource(org.opencms.file.CmsObject, java.lang.String, org.opencms.file.CmsResource.CmsResourceDeleteMode)

getLock

public CmsLock getLock(CmsObject cms,
                       CmsResource resource)
                throws CmsException

Description copied from interface: I_CmsResourceWrapper

Returns the lock for the resource.

First should be a check if the resource is handled by this resource wrapper.

It is possible that the path in the resource is a virtual path and so has to be translated into a valid path existing in the VFS to get the lock for the resource.

Specified by:

getLock in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

resource - the resource to check the lock for

Returns:

the lock state of the resource or null if the action couldn't be handled by this resource wrapper

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.getLock(org.opencms.file.CmsObject, org.opencms.file.CmsResource)

lockResource

public boolean lockResource(CmsObject cms,
                            java.lang.String resourcename)
                     throws CmsException

Description copied from interface: I_CmsResourceWrapper

Locks a resource.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to lock the resource.

Specified by:

lockResource in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resourcename - the name of the resource to lock (full path)

Returns:

true if this request could be handled by this wrapper or false if not

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.lockResource(CmsObject, String)

moveResource

public boolean moveResource(CmsObject cms,
                            java.lang.String source,
                            java.lang.String destination)
                     throws CmsException,
                            CmsIllegalArgumentException

Description copied from interface: I_CmsResourceWrapper

Moves a resource to the given destination.

First should be a check if the source and/or the destination are handled by this resource wrapper.

It is possible that the path in the source or in the destination are virtual paths and so has to be translated into valid paths existing in the VFS to move the resource.

Specified by:

moveResource in interface I_CmsResourceWrapper

Parameters:

cms - the current cms context

source - the name of the resource to move

destination - the destination resource name

Returns:

true if the move action was handled by this resource wrapper otherwise false

Throws:

CmsException - if something goes wrong

CmsIllegalArgumentException - if the source argument is null or of length 0

See Also:

I_CmsResourceWrapper.moveResource(org.opencms.file.CmsObject, java.lang.String, java.lang.String)

readFile

public CmsFile readFile(CmsObject cms,
                        java.lang.String resourcename,
                        CmsResourceFilter filter)
                 throws CmsException

Description copied from interface: I_CmsResourceWrapper

Reads a file resource (including it's binary content) from the VFS, using the specified resource filter.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to read the resource.

Specified by:

readFile in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resourcename - the name of the resource to read (full path)

filter - the resource filter to use while reading

Returns:

the file resource that was read or null if it could not be handled by this resource wrapper

Throws:

CmsException - if the file resource could not be read for any reason

See Also:

I_CmsResourceWrapper.readFile(org.opencms.file.CmsObject, java.lang.String, org.opencms.file.CmsResourceFilter)

readResource

public CmsResource readResource(CmsObject cms,
                                java.lang.String resourcename,
                                CmsResourceFilter filter)
                         throws CmsException

Description copied from interface: I_CmsResourceWrapper

Reads a resource from the VFS, using the specified resource filter.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to read the resource.

Specified by:

readResource in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resourcename - The name of the resource to read (full path)

filter - the resource filter to use while reading

Returns:

the resource that was read or null if it could not be handled by this resource wrapper

Throws:

CmsException - if the resource could not be read for any reason

See Also:

I_CmsResourceWrapper.readResource(org.opencms.file.CmsObject, java.lang.String, org.opencms.file.CmsResourceFilter)

restoreLink

public java.lang.String restoreLink(CmsObject cms,
                                    java.lang.String uri)

Description copied from interface: I_CmsResourceWrapper

Returns the link to a existing resource in the VFS for the uri.

Turns the virtual path into a real path to a resource in the VFS.

Specified by:

restoreLink in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

uri - the (virtual) uri to be restored

Returns:

the uri where to find the resource in the VFS or null if the wrapper is not responsible

See Also:

I_CmsResourceWrapper.restoreLink(org.opencms.file.CmsObject, java.lang.String)

rewriteLink

public java.lang.String rewriteLink(CmsObject cms,
                                    CmsResource res)

Description copied from interface: I_CmsResourceWrapper

Returns the link how it is for the resource after using this resource wrapper.

For example: in the VFS: "/sites/default/index.html" and this resource wrapper adds the extension "jsp" then link returned should be "/sites/default/index.html.jsp".

Specified by:

rewriteLink in interface I_CmsResourceWrapper

Parameters:

cms - the initialized CmsObject

res - the resource where to rewrite the path

Returns:

the rewritten path or null if the wrapper is not responsible

See Also:

I_CmsResourceWrapper.rewriteLink(CmsObject, CmsResource)

unlockResource

public boolean unlockResource(CmsObject cms,
                              java.lang.String resourcename)
                       throws CmsException

Description copied from interface: I_CmsResourceWrapper

Unlocks a resource.

First should be a check if the resourcename is handled by this resource wrapper.

It is possible that the path in the resourcename is a virtual path and so has to be translated into a valid path existing in the VFS to unlock the resource.

Specified by:

unlockResource in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resourcename - the name of the resource to unlock (full path)

Returns:

true if this request could be handled by this wrapper of false if not

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.unlockResource(CmsObject, String)

wrapResource

public CmsResource wrapResource(CmsObject cms,
                                CmsResource resource)

Description copied from interface: I_CmsResourceWrapper

Changes the given resource based on the implementation of this wrapper.

For example, some resource types like CmsResourceTypeJsp just get a .jsp extension, while other types like CmsResourceTypeXmlPage are "exploded" into a folder / file structure.

Specified by:

wrapResource in interface I_CmsResourceWrapper

Parameters:

cms - the current users OpenCms context

resource - the resource to wrap

Returns:

a wrapped CmsResource object or null to not change the resource

See Also:

I_CmsResourceWrapper.wrapResource(org.opencms.file.CmsObject, org.opencms.file.CmsResource)

writeFile

public CmsFile writeFile(CmsObject cms,
                         CmsFile resource)
                  throws CmsException

Description copied from interface: I_CmsResourceWrapper

Writes a resource, including it's content.

First should be a check if the resource is handled by this resource wrapper.

It is possible that the path in the resource is a virtual path and so has to be translated into a valid path existing in the VFS to write the resource.

Specified by:

writeFile in interface I_CmsResourceWrapper

Parameters:

cms - the current cms context

resource - the resource to apply this operation to

Returns:

the written resource or null if the action could not be handled by this resource wrapper

Throws:

CmsException - if something goes wrong

See Also:

I_CmsResourceWrapper.writeFile(org.opencms.file.CmsObject, org.opencms.file.CmsFile)