Package org.alfresco.repo.virtual.ref

Class VirtualProtocol

java.lang.Object

org.alfresco.repo.virtual.ref.Protocol

org.alfresco.repo.virtual.ref.VirtualProtocol

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

VanillaProtocol

public class VirtualProtocol
extends Protocol

A protocol for encoding virtual artefacts.
Virtual artefacts are generated using a virtual folder templateindicated by the main Reference resource.
The virtual folder template defines a hierarchical structure of virtual nodes.
The template path (see getTemplatePath(Reference)) indicates a path in this structure.
Virtual folders templates can be applied on actual repository nodes (see getActualNodeLocation(Reference)) which should be passed as parameters to the virtual folder template.
The protocol implementation also handles virtual protocol Reference creation and template path navigation.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	ACTUAL_NODE_LOCATION_PARAM_INDEX	Actual node Parameter index.
static Character	CLASS_TEMPLATE_PATH_TOKEN	Classpath system path token.
static Character	NODE_TEMPLATE_PATH_TOKEN	Repository node path system path token.
static int	TEMPLATE_PATH_PARAM_INDEX	Template path Parameter index.

Fields inherited from class org.alfresco.repo.virtual.ref.Protocol

DEFAULT_ENCODING, name

Constructor Summary

Constructors

Constructor	Description
VirtualProtocol()
VirtualProtocol(String name)

Method Summary

Modifier and Type	Method	Description
protected Resource	createSystemPathResource(String templateSysPath)	Deprecated. In future system paths will be replaced with actual resources or string encoded references
<R> R	dispatch(ProtocolMethod<R> method, Reference reference)	ProtocolMethod double-dispatch/visitor protocol type selector.
RepositoryLocation	getActualNodeLocation(Reference reference)
String	getTemplatePath(Reference reference)
Reference	newReference(String templateSysPath, String templatePath, NodeRef actualNodeRef)	Deprecated. In future system paths will be replaced with actual resources or string encoded references
Reference	newReference(Encoding encoding, Resource templateResource, String templatePath, Resource actualNodeResource, List<Parameter> extraParameters)
Reference	newReference(Resource templateResource, String templatePath, NodeRef actualNodeRef, List<Parameter> extraParameters)
Reference	newReference(NodeRef templateNodeRef, String templatePath, NodeRef actualNodeRef)
Reference	replaceTemplatePath(Reference reference, String path)

Methods inherited from class org.alfresco.repo.virtual.ref.Protocol

addParameter, addParameter, getParameter, propagateNodeRefMutations, replaceParameter, replaceParameter, toString

Methods inherited from class java.lang.Object

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

Field Detail

ACTUAL_NODE_LOCATION_PARAM_INDEX

public static final int ACTUAL_NODE_LOCATION_PARAM_INDEX

Actual node Parameter index.

See Also:

Constant Field Values

TEMPLATE_PATH_PARAM_INDEX

public static final int TEMPLATE_PATH_PARAM_INDEX

Template path Parameter index.

See Also:

Constant Field Values

NODE_TEMPLATE_PATH_TOKEN

public static final Character NODE_TEMPLATE_PATH_TOKEN

Repository node path system path token.

CLASS_TEMPLATE_PATH_TOKEN

public static final Character CLASS_TEMPLATE_PATH_TOKEN

Classpath system path token.

Constructor Detail

VirtualProtocol

public VirtualProtocol()

VirtualProtocol

public VirtualProtocol(String name)

Method Detail

dispatch

public <R> R dispatch(ProtocolMethod<R> method,
                      Reference reference)
               throws ProtocolMethodException

Description copied from class: Protocol

ProtocolMethod double-dispatch/visitor protocol type selector. Subclasses should override this method to select the appropriate type bound method.
This particular implementation calls the default ProtocolMethod.execute(Protocol, Reference) default method implementation.

Overrides:

dispatch in class Protocol

Returns:

the value returned by the type bond method

Throws:

ProtocolMethodException

getTemplatePath

public String getTemplatePath(Reference reference)

Parameters:

reference -

Returns:

the inner template path referenced by the given Reference

See Also:

TEMPLATE_PATH_PARAM_INDEX

replaceTemplatePath

public Reference replaceTemplatePath(Reference reference,
                                     String path)

Parameters:

reference -

path -

Returns:

a Reference copy of the given reference parameter with the template path set to the given path parameter value

See Also:

TEMPLATE_PATH_PARAM_INDEX

getActualNodeLocation

public RepositoryLocation getActualNodeLocation(Reference reference)

Parameters:

reference -

Returns:

the repository location of the actual node that the virtual template should be applied on

See Also:

ACTUAL_NODE_LOCATION_PARAM_INDEX

newReference

public Reference newReference(NodeRef templateNodeRef,
                              String templatePath,
                              NodeRef actualNodeRef)

Parameters:

templateNodeRef - NodeRef of the template content holding repository node

templatePath -

actualNodeRef -

Returns:

a new virtual protocol Reference with the given virtual protocol reference elements

newReference

public Reference newReference(Resource templateResource,
                              String templatePath,
                              NodeRef actualNodeRef,
                              List<Parameter> extraParameters)

Parameters:

templateResource - template content holding resource

templatePath -

actualNodeRef -

Returns:

a new virtual protocol Reference with the given virtual protocol reference elements

newReference

public Reference newReference(Encoding encoding,
                              Resource templateResource,
                              String templatePath,
                              Resource actualNodeResource,
                              List<Parameter> extraParameters)

newReference

public Reference newReference(String templateSysPath,
                              String templatePath,
                              NodeRef actualNodeRef)
                       throws ProtocolMethodException

Deprecated.

In future system paths will be replaced with actual resources or string encoded references

Creates a resource based on the given template system-path that is used in creating a new virtual protocol reference.

Parameters:

templateSysPath - a template-system-path for the template holding content
Template-system-paths are classpaths paths or repository paths prefixed with CLASS_TEMPLATE_PATH_TOKEN or NODE_TEMPLATE_PATH_TOKEN respectively.

templatePath -

actualNodeRef -

Returns:

a new virtual protocol Reference with the given virtual protocol reference elements

Throws:

ProtocolMethodException

createSystemPathResource

protected Resource createSystemPathResource(String templateSysPath)

Deprecated.

In future system paths will be replaced with actual resources or string encoded references

System path resource factory method.

Parameters:

templateSysPath - a classpath or a repository path prefixed with CLASS_TEMPLATE_PATH_TOKEN or NODE_TEMPLATE_PATH_TOKEN respectively.

Returns:

a ClassPathResource or a RepositoryResource for the given system path