org.apache.jackrabbit.webdav.jcr

Class EventJournalResourceImpl

java.lang.Object

org.apache.jackrabbit.webdav.jcr.EventJournalResourceImpl

All Implemented Interfaces:

DavResource, SearchResource, TransactionResource, DeltaVResource

public class EventJournalResourceImpl
extends Object

Implements a JCR EventJournal in terms of an RFC 4287 Atom feed.

Each feed entry represents either a single event, or, if the repository supports the Event.PERSIST event, an event bundle. The actual event data is sent in the Atom <content> element and uses the same XML serialization as the one used for subscriptions.

Skipping is implemented by specifying the desired time offset (represented as hexadecimal long in ms since the epoch) disguised as ETag in the HTTP "If-None-Match" header field.

The generated feed may not be complete; the total number of events is limited in order not to overload the client.

Furthermore, the number of events is limited by going up to 2000 ms into the future (based on the request time). This is supposed to limit the wait time for the client).

Field Summary

Fields

Modifier and Type	Field and Description
static String	EVENTMEDIATYPE
protected boolean	initedProps
protected DavPropertyNameSet	names
protected DavPropertySet	properties
static String	RELURIFROMWORKSPACE
protected SupportedLock	supportedLock
protected SupportedReportSetProperty	supportedReports

Fields inherited from interface org.apache.jackrabbit.webdav.transaction.TransactionResource

METHODS

Fields inherited from interface org.apache.jackrabbit.webdav.version.DeltaVResource

METHODS, METHODS_INCL_MKWORKSPACE

Fields inherited from interface org.apache.jackrabbit.webdav.search.SearchResource

METHODS

Method Summary

Modifier and Type	Method and Description
void	addLockManager(LockManager lockMgr) Add an external LockManager to this resource.
void	addMember(DavResource resource, InputContext inputContext) Add the given resource as an internal member to this resource.
void	addWorkspace(DavResource workspace) The JCR api does not provide methods to create new workspaces.
MultiStatusResponse	alterProperties(List<? extends PropEntry> changeList) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED
void	copy(DavResource destination, boolean shallow) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED
protected DavResource	createResourceFromLocator(DavResourceLocator loc) Create a new DavResource from the given locator.
boolean	exists() Returns true if this webdav resource represents an existing repository item.
DavResource	getCollection() Retrieve the resource this resource is internal member of.
String	getComplianceClass() Returns a string listing the compliance classes for this resource as it is required for the DAV response header.
protected String	getCreationDate() Returns the creation date which is used for the DavPropertyName.CREATIONDATE property.
protected String	getCreatorDisplayName() Returns the display name of the creator which is used for the protected DeltaVConstants.CREATOR_DISPLAYNAME property.
String	getDisplayName() Returns the display name of this resource.
DavResourceFactory	getFactory() Return the DavResourceFactory that created this resource.
String	getHref() Returns the absolute href of this resource as returned in the multistatus response body.
DavResourceLocator	getLocator() Returns the locator object for this webdav resource, which encapsulates the information for building the complete 'href'.
protected DavResourceLocator	getLocatorFromItem(Item repositoryItem) Build a new DavResourceLocator from the given repository item.
protected DavResourceLocator	getLocatorFromItemPath(String itemPath) Build a DavResourceLocator from the given itemPath path.
ActiveLock	getLock(Type type, Scope scope) Return the lock present on this webdav resource or null if the resource is either not locked or not lockable at all.
ActiveLock[]	getLocks() Returns an array of all locks applied to the given resource.
DavResourceIterator	getMembers() Returns an iterator over all internal members.
long	getModificationTime() Return the time of the last modification or -1 if the modification time could not be retrieved.
OptionsResponse	getOptionResponse(OptionsInfo optionsInfo) Retrieves the information requested in the OPTIONS request body and returns the corresponding values.
DavPropertySet	getProperties() Returns all webdav properties present on this resource that will be return upon a DavConstants.PROPFIND_ALL_PROP request.
DavProperty<?>	getProperty(DavPropertyName name) Return the webdav property with the specified name.
DavPropertyName[]	getPropertyNames() Returns an array of all property names available on this resource.
QueryGrammerSet	getQueryGrammerSet() Returns the protected DAV:supported-method-set property which is defined mandatory by RTF 3253.
DavResource[]	getReferenceResources(DavPropertyName hrefPropertyName) Return an array of DavResource objects that are referenced by the property with the specified name.
Report	getReport(ReportInfo reportInfo) Runs the report specified by the given ReportInfo.
protected Session	getRepositorySession() Shortcut for getSession().getRepositorySession()
String	getResourcePath() Returns the path of the underlying repository item or the item to be created (PUT/MKCOL).
DavSession	getSession() Retrieve the DavSession associated with this resource.
String	getSupportedMethods() Returns a comma separated list of all METHODS supported by the given resource.
String	getTransactionId() The TransactionId or null according to the value of the corresponding request header field.
protected String	getWorkspaceHref() Retrieve the href of the workspace the current session belongs to.
boolean	hasLock(Type type, Scope scope) Returns true if this resource has a lock applied with the given type and scope.
void	init(TxLockManager txMgr, String transactionId) Initializes the TransactionResource.
protected void	initLockSupport() Define the set of locks supported by this resource.
protected void	initProperties() Fill the set of default properties
protected void	initPropertyNames() Property names common to all resources.
protected void	initSupportedReports() Define the set of reports supported by this resource.
boolean	isCollection() Returns true if this webdav resource has the resourcetype 'collection'.
boolean	isLockable(Type type, Scope scope) Returns true, if the SupportedLock property contains an entry with the given type and scope.
ActiveLock	lock(LockInfo reqLockInfo) Lock this webdav resource with the information retrieve from the request and return the resulting lockdiscovery object.
void	move(DavResource destination) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED
ActiveLock	refreshLock(LockInfo info, String lockToken) Only transaction lock may be available on this resource.
void	removeMember(DavResource member) Removes the specified member from this resource.
void	removeProperty(DavPropertyName propertyName) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED
MultiStatus	search(SearchInfo sInfo) Runs a search with the language and query defined in the SearchInfo object specified and returns a MultiStatus object listing the results.
void	setProperty(DavProperty<?> property) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED
void	spool(OutputContext outputContext) Spools the resource properties and ev.
void	unlock(String lockToken) Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED since only transaction locks may be present on this resource, that need to be released by calling TransactionResource.unlock(String, org.apache.jackrabbit.webdav.transaction.TransactionInfo).
void	unlock(String lockToken, TransactionInfo tInfo) Overloads the unlock method of the DavResource interface.

Methods inherited from class java.lang.Object

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

Field Detail

RELURIFROMWORKSPACE

public static final String RELURIFROMWORKSPACE

See Also:

Constant Field Values

EVENTMEDIATYPE

public static final String EVENTMEDIATYPE

See Also:

Constant Field Values

initedProps

protected boolean initedProps

properties

protected DavPropertySet properties

names

protected DavPropertyNameSet names

supportedLock

protected SupportedLock supportedLock

supportedReports

protected SupportedReportSetProperty supportedReports

Method Detail

getSupportedMethods

public String getSupportedMethods()

Description copied from interface: DavResource

Returns a comma separated list of all METHODS supported by the given resource.

Returns:

METHODS supported by this resource.

exists

public boolean exists()

Description copied from interface: DavResource

Returns true if this webdav resource represents an existing repository item.

Returns:

true, if the resource represents an existing repository item.

isCollection

public boolean isCollection()

Description copied from interface: DavResource

Returns true if this webdav resource has the resourcetype 'collection'.

Returns:

true if the resource represents a collection resource.

getDisplayName

public String getDisplayName()

Description copied from interface: DavResource

Returns the display name of this resource.

Returns:

display name.

getModificationTime

public long getModificationTime()

Description copied from interface: DavResource

Return the time of the last modification or -1 if the modification time could not be retrieved.

Returns:

time of last modification or -1.

spool

public void spool(OutputContext outputContext)
           throws IOException

Description copied from interface: DavResource

Spools the resource properties and ev. content to the specified context (e.g. to respond to a 'GET' or 'HEAD' request). The context could e.g. wrap the servlet response.

Parameters:

outputContext - The output context.

Throws:

IOException - If an error occurs.

getCollection

public DavResource getCollection()

Description copied from interface: DavResource

Retrieve the resource this resource is internal member of.

Returns:

resource this resource is an internal member of. In case this resource is the root null is returned.

addMember

public void addMember(DavResource resource,
                      InputContext inputContext)
               throws DavException

Description copied from interface: DavResource

Add the given resource as an internal member to this resource.

Parameters:

resource - DavResource to be added as internal member.

inputContext - Context providing the properties and content for the internal member to be created or replaced.

Throws:

DavException

getMembers

public DavResourceIterator getMembers()

Description copied from interface: DavResource

Returns an iterator over all internal members.

Returns:

a DavResourceIterator over all internal members.

removeMember

public void removeMember(DavResource member)
                  throws DavException

Description copied from interface: DavResource

Removes the specified member from this resource.

Throws:

DavException

initLockSupport

protected void initLockSupport()

Define the set of locks supported by this resource.

See Also:

SupportedLock

getWorkspaceHref

protected String getWorkspaceHref()

Retrieve the href of the workspace the current session belongs to.

Returns:

href of the workspace

getComplianceClass

public String getComplianceClass()

Returns a string listing the compliance classes for this resource as it is required for the DAV response header. This includes DAV 1, 2 which is supported by all derived classes as well as a subset of the classes defined by DeltaV: version-control, version-history, checkout-in-place, label, merge, update and workspace.
Those compliance classes are added as required by RFC3253 since all all resources in the jcr-server support at least the reporting and some basic versioning functionality.

Specified by:

getComplianceClass in interface DavResource

Returns:

string listing the compliance classes.

See Also:

DavResource.getComplianceClass()

getLocator

public DavResourceLocator getLocator()

Description copied from interface: DavResource

Returns the locator object for this webdav resource, which encapsulates the information for building the complete 'href'.

Specified by:

getLocator in interface DavResource

Returns:

the locator for this resource.

See Also:

DavResource.getLocator()

getResourcePath

public String getResourcePath()

Returns the path of the underlying repository item or the item to be created (PUT/MKCOL). If the resource exists but does not represent a repository item null is returned.

Specified by:

getResourcePath in interface DavResource

Returns:

path of the underlying repository item.

See Also:

DavResource.getResourcePath(), DavResourceLocator.getResourcePath()

getHref

public String getHref()

Description copied from interface: DavResource

Returns the absolute href of this resource as returned in the multistatus response body.

Specified by:

getHref in interface DavResource

Returns:

href

See Also:

DavResource.getHref(), DavResourceLocator.getHref(boolean)

getPropertyNames

public DavPropertyName[] getPropertyNames()

Description copied from interface: DavResource

Returns an array of all property names available on this resource.

Specified by:

getPropertyNames in interface DavResource

Returns:

an array of property names.

See Also:

DavResource.getPropertyNames()

getProperty

public DavProperty<?> getProperty(DavPropertyName name)

Description copied from interface: DavResource

Return the webdav property with the specified name.

Specified by:

getProperty in interface DavResource

Parameters:

name - name of the webdav property

Returns:

the DavProperty with the given name or null if the property does not exist.

See Also:

DavResource.getProperty(org.apache.jackrabbit.webdav.property.DavPropertyName)

getProperties

public DavPropertySet getProperties()

Description copied from interface: DavResource

Returns all webdav properties present on this resource that will be return upon a DavConstants.PROPFIND_ALL_PROP request. The implementation may in addition expose other (protected or calculated) properties which should be marked accordingly (see also DavProperty.isInvisibleInAllprop().

Specified by:

getProperties in interface DavResource

Returns:

a DavPropertySet containing at least all properties of this resource that are exposed in 'allprop' PROPFIND request.

See Also:

DavResource.getProperties()

setProperty

public void setProperty(DavProperty<?> property)
                 throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

Specified by:

setProperty in interface DavResource

Parameters:

property -

Throws:

DavException - Always throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

See Also:

DavResource.setProperty(org.apache.jackrabbit.webdav.property.DavProperty)

removeProperty

public void removeProperty(DavPropertyName propertyName)
                    throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

Specified by:

removeProperty in interface DavResource

Parameters:

propertyName -

Throws:

DavException - Always throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

See Also:

DavResource.removeProperty(org.apache.jackrabbit.webdav.property.DavPropertyName)

alterProperties

public MultiStatusResponse alterProperties(List<? extends PropEntry> changeList)
                                    throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

Specified by:

alterProperties in interface DavResource

Parameters:

changeList - list containing DavPropertyName objects (for properties to be removed) and DavProperty objects (for properties to be added/set).

Returns:

multistatus response listing the status resulting from setting and/or removing the specified properties, in order to allow a detailed multistatus response.

Throws:

DavException - if an error occurred. This may be the case if the general state of the resource prevents any properties to be set or removed (e.g. due to a lock).

See Also:

DavResource.alterProperties(List)

move

public void move(DavResource destination)
          throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

Specified by:

move in interface DavResource

Parameters:

destination -

Throws:

DavException - Always throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

See Also:

DavResource.move(org.apache.jackrabbit.webdav.DavResource)

copy

public void copy(DavResource destination,
                 boolean shallow)
          throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

Specified by:

copy in interface DavResource

Parameters:

destination -

shallow -

Throws:

DavException - Always throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

See Also:

DavResource.copy(org.apache.jackrabbit.webdav.DavResource, boolean)

isLockable

public boolean isLockable(Type type,
                          Scope scope)

Returns true, if the SupportedLock property contains an entry with the given type and scope. By default resources allow for transaction lock only.

Specified by:

isLockable in interface DavResource

Parameters:

type -

scope -

Returns:

true if this resource may be locked by the given type and scope.

See Also:

DavResource.isLockable(org.apache.jackrabbit.webdav.lock.Type, org.apache.jackrabbit.webdav.lock.Scope)

hasLock

public boolean hasLock(Type type,
                       Scope scope)

Returns true if this resource has a lock applied with the given type and scope.

Specified by:

hasLock in interface DavResource

Parameters:

type -

scope -

Returns:

true if this resource has a lock applied with the given type and scope.

See Also:

DavResource.hasLock(Type, Scope)

getLock

public ActiveLock getLock(Type type,
                          Scope scope)

Description copied from interface: DavResource

Return the lock present on this webdav resource or null if the resource is either not locked or not lockable at all. Note, that a resource may have a lock that is inherited by a deep lock enforced on one of its 'parent' resources.

Specified by:

getLock in interface DavResource

Returns:

lock information of this resource or null if this resource has no lock applying it. If an error occurs while retrieving the lock information null is returned as well.

See Also:

DavResource.getLock(Type, Scope)

getLocks

public ActiveLock[] getLocks()

Description copied from interface: DavResource

Returns an array of all locks applied to the given resource.

Specified by:

getLocks in interface DavResource

Returns:

array of locks. The array is empty if there are no locks applied to this resource.

See Also:

todo improve....

lock

public ActiveLock lock(LockInfo reqLockInfo)
                throws DavException

Description copied from interface: DavResource

Lock this webdav resource with the information retrieve from the request and return the resulting lockdiscovery object.

Specified by:

lock in interface DavResource

Parameters:

reqLockInfo - lock info as retrieved from the request.

Returns:

lockdiscovery object to be returned in the response. If the lock could not be obtained a DavException is thrown.

Throws:

DavException - if the lock could not be obtained.

See Also:

DavResource.lock(org.apache.jackrabbit.webdav.lock.LockInfo)

refreshLock

public ActiveLock refreshLock(LockInfo info,
                              String lockToken)
                       throws DavException

Only transaction lock may be available on this resource.

Specified by:

refreshLock in interface DavResource

Parameters:

info -

lockToken -

Returns:

lockdiscovery object to be returned in the response body. If the lock could not be refreshed a DavException is thrown.

Throws:

DavException

See Also:

DavResource.refreshLock(org.apache.jackrabbit.webdav.lock.LockInfo, String)

unlock

public void unlock(String lockToken)
            throws DavException

Throws HttpServletResponse.SC_METHOD_NOT_ALLOWED since only transaction locks may be present on this resource, that need to be released by calling TransactionResource.unlock(String, org.apache.jackrabbit.webdav.transaction.TransactionInfo).

Specified by:

unlock in interface DavResource

Parameters:

lockToken -

Throws:

DavException - Always throws HttpServletResponse.SC_METHOD_NOT_ALLOWED

addLockManager

public void addLockManager(LockManager lockMgr)

Description copied from interface: DavResource

Add an external LockManager to this resource. This method may throw UnsupportedOperationException if the resource does handle locking itself.

Specified by:

addLockManager in interface DavResource

See Also:

DavResource.addLockManager(org.apache.jackrabbit.webdav.lock.LockManager)

getFactory

public DavResourceFactory getFactory()

Description copied from interface: DavResource

Return the DavResourceFactory that created this resource.

Specified by:

getFactory in interface DavResource

Returns:

the factory that created this resource.

See Also:

DavResource.getFactory()

getSession

public DavSession getSession()

Description copied from interface: DavResource

Retrieve the DavSession associated with this resource.

Specified by:

getSession in interface DavResource

Returns:

session object associated with this resource.

See Also:

DavResource.getSession(), DavResource.getSession()

init

public void init(TxLockManager txMgr,
                 String transactionId)

Description copied from interface: TransactionResource

Initializes the TransactionResource.

Specified by:

init in interface TransactionResource

See Also:

TransactionResource.init(TxLockManager, String)

unlock

public void unlock(String lockToken,
                   TransactionInfo tInfo)
            throws DavException

Description copied from interface: TransactionResource

Overloads the unlock method of the DavResource interface.

Specified by:

unlock in interface TransactionResource

Parameters:

lockToken - lock token as present in the request header.

tInfo - transaction info object as present in the UNLOCK request body.

Throws:

DavException - if an error occurs

See Also:

TransactionResource.unlock(String, org.apache.jackrabbit.webdav.transaction.TransactionInfo)

getTransactionId

public String getTransactionId()

Description copied from interface: TransactionResource

The TransactionId or null according to the value of the corresponding request header field.

Specified by:

getTransactionId in interface TransactionResource

Returns:

TransactionId header or null

See Also:

TransactionResource.getTransactionId()

getOptionResponse

public OptionsResponse getOptionResponse(OptionsInfo optionsInfo)

Description copied from interface: DeltaVResource

Retrieves the information requested in the OPTIONS request body and returns the corresponding values.

Specified by:

getOptionResponse in interface DeltaVResource

Parameters:

optionsInfo -

Returns:

object to be used in the OPTIONS response body or null

See Also:

DeltaVResource.getOptionResponse(org.apache.jackrabbit.webdav.version.OptionsInfo)

getReport

public Report getReport(ReportInfo reportInfo)
                 throws DavException

Description copied from interface: DeltaVResource

Runs the report specified by the given ReportInfo.

Specified by:

getReport in interface DeltaVResource

Parameters:

reportInfo -

Returns:

the requested report

Throws:

DavException

See Also:

DeltaVResource.getReport(org.apache.jackrabbit.webdav.version.report.ReportInfo)

addWorkspace

public void addWorkspace(DavResource workspace)
                  throws DavException

The JCR api does not provide methods to create new workspaces. Calling addWorkspace on this resource will always fail.

Specified by:

addWorkspace in interface DeltaVResource

Parameters:

workspace -

Throws:

DavException - Always throws.

See Also:

DeltaVResource.addWorkspace(org.apache.jackrabbit.webdav.DavResource)

getReferenceResources

public DavResource[] getReferenceResources(DavPropertyName hrefPropertyName)
                                    throws DavException

Return an array of DavResource objects that are referenced by the property with the specified name.

Specified by:

getReferenceResources in interface DeltaVResource

Parameters:

hrefPropertyName -

Returns:

array of DavResources

Throws:

DavException

See Also:

DeltaVResource.getReferenceResources(org.apache.jackrabbit.webdav.property.DavPropertyName)

getQueryGrammerSet

public QueryGrammerSet getQueryGrammerSet()

Description copied from interface: SearchResource

Returns the protected DAV:supported-method-set property which is defined mandatory by RTF 3253. This method call is a shortcut for DavResource.getProperty(SearchConstants.QUERY_GRAMMER_SET).

Specified by:

getQueryGrammerSet in interface SearchResource

Returns:

See Also:

SearchResource.getQueryGrammerSet()

search

public MultiStatus search(SearchInfo sInfo)
                   throws DavException

Description copied from interface: SearchResource

Runs a search with the language and query defined in the SearchInfo object specified and returns a MultiStatus object listing the results.

Specified by:

search in interface SearchResource

Parameters:

sInfo -

Returns:

Throws:

DavException

See Also:

SearchResource.search(org.apache.jackrabbit.webdav.search.SearchInfo)

initPropertyNames

protected void initPropertyNames()

Property names common to all resources.

initProperties

protected void initProperties()

Fill the set of default properties

createResourceFromLocator

protected DavResource createResourceFromLocator(DavResourceLocator loc)
                                         throws DavException

Create a new DavResource from the given locator.

Parameters:

loc -

Returns:

new DavResource

Throws:

DavException

getLocatorFromItemPath

protected DavResourceLocator getLocatorFromItemPath(String itemPath)

Build a DavResourceLocator from the given itemPath path.

Parameters:

itemPath -

Returns:

a new DavResourceLocator

See Also:

DavLocatorFactory.createResourceLocator(String, String, String)

getLocatorFromItem

protected DavResourceLocator getLocatorFromItem(Item repositoryItem)

Build a new DavResourceLocator from the given repository item.

Parameters:

repositoryItem -

Returns:

a new locator for the specified item.

See Also:

getLocatorFromItemPath(String)

getRepositorySession

protected Session getRepositorySession()

Shortcut for getSession().getRepositorySession()

Returns:

repository session present in the AbstractResource.session.

initSupportedReports

protected void initSupportedReports()

Define the set of reports supported by this resource.

See Also:

SupportedReportSetProperty, AbstractResource.initSupportedReports()

getCreatorDisplayName

protected String getCreatorDisplayName()

Returns the display name of the creator which is used for the protected DeltaVConstants.CREATOR_DISPLAYNAME property.

Returns:

always null; subclasses may provide a regular value.

getCreationDate

protected String getCreationDate()

Returns the creation date which is used for the DavPropertyName.CREATIONDATE property.

Returns:

a dummy date; subclasses may provide a reasonable value.