org.apache.jackrabbit.spi.commons
Class AbstractReadableRepositoryService

java.lang.Object
  org.apache.jackrabbit.spi.commons.AbstractRepositoryService
      org.apache.jackrabbit.spi.commons.AbstractReadableRepositoryService

All Implemented Interfaces:

RepositoryService

public abstract class AbstractReadableRepositoryService
extends AbstractRepositoryService

AbstractReadableRepositoryService provides an abstract base class where all methods that attempt to write throw an UnsupportedRepositoryOperationException. This class useful for repository service implementation that only provide read access to the underlying content.

Field Summary

protected String	defaulWsp The name of the default workspace
protected static Set<String>	WRITE_ACTIONS
protected List<String>	wspNames The list of workspaces that this repository service exposes.

Fields inherited from class org.apache.jackrabbit.spi.commons.AbstractRepositoryService

descriptors, namespaces, nodeTypeDefs, rootNodeDefinition

Constructor Summary

AbstractReadableRepositoryService(Map<String,QValue[]> descriptors, Map<String,String> namespaces, Reader cnd, List<String> wspNames, String defaultWsp)
Creates a new AbstractReadableRepositoryService.

Method Summary

protected void	checkWorkspace(String workspaceName) Checks whether the workspaceName is valid.
protected SessionInfo	createSessionInfo(Credentials credentials, String workspaceName) Creates a session info instance for the given credentials and workspaceName.
ItemInfoCache	getItemInfoCache(SessionInfo sessionInfo) Returns a ItemInfoCache for the given SessionInfo.
NodeInfo	getNodeInfo(SessionInfo sessionInfo, NodeId nodeId) This default implementation returns the first item returned by the call to RepositoryService.getItemInfos(SessionInfo, NodeId).
String[]	getWorkspaceNames(SessionInfo sessionInfo) This default implementation first calls AbstractRepositoryService.checkSessionInfo(SessionInfo) with the sessionInfo, then returns the workspaces that were passed to the constructor of this repository service.
boolean	isGranted(SessionInfo sessionInfo, ItemId itemId, String[] actions) This default implementation first calls AbstractRepositoryService.checkSessionInfo(SessionInfo) with the sessionInfo, then returns false if the any of the actions are in WRITE_ACTIONS; otherwise returns true.

Methods inherited from class org.apache.jackrabbit.spi.commons.AbstractRepositoryService

addVersionLabel, checkCredentials, checkin, checkout, checkout, checkpoint, checkpoint, checkQueryStatement, checkSessionInfo, clone, copy, createActivity, createBatch, createConfiguration, createEventFilter, createRootNodeDefinition, createSessionInfo, createSubscription, createWorkspace, deleteWorkspace, dispose, dispose, executeQuery, getEvents, getEvents, getIdFactory, getLockInfo, getNameFactory, getNamespacePrefix, getNamespaceURI, getNodeDefinition, getPathFactory, getPropertyDefinition, getQNodeTypeDefinitions, getQNodeTypeDefinitions, getQValueFactory, getRegisteredNamespaces, getRepositoryDescriptors, getSupportedQueryLanguages, impersonate, importXml, lock, lock, merge, merge, mergeActivity, move, obtain, obtain, refreshLock, registerNamespace, registerNodeTypes, removeActivity, removeVersion, removeVersionLabel, resolveMergeConflict, restore, restore, submit, unlock, unregisterNamespace, unregisterNodeTypes, update, updateEventFilters

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jackrabbit.spi.RepositoryService

getChildInfos, getItemInfos, getPropertyInfo, getReferences

Field Detail

WRITE_ACTIONS

protected static final Set<String> WRITE_ACTIONS

wspNames

protected final List<String> wspNames

The list of workspaces that this repository service exposes.

defaulWsp

protected final String defaulWsp

The name of the default workspace

Constructor Detail

AbstractReadableRepositoryService

public AbstractReadableRepositoryService(Map<String,QValue[]> descriptors,
                                         Map<String,String> namespaces,
                                         Reader cnd,
                                         List<String> wspNames,
                                         String defaultWsp)
                                  throws RepositoryException,
                                         ParseException,
                                         IllegalArgumentException

Creates a new AbstractReadableRepositoryService.

Parameters:

descriptors - the repository descriptors. Maps descriptor keys to descriptor values.

namespaces - the namespaces. Maps namespace prefixes to namespace URIs.

cnd - a reader on the compact node type definition.

wspNames - a list of workspace names.

defaultWsp - name of the default workspace

Throws:

RepositoryException - if the namespace mappings are invalid.

ParseException - if an error occurs while parsing the CND.

IllegalArgumentException - if defaultWsp is null

Method Detail

checkWorkspace

protected void checkWorkspace(String workspaceName)
                       throws NoSuchWorkspaceException

Checks whether the workspaceName is valid.

Overrides:

checkWorkspace in class AbstractRepositoryService

Parameters:

workspaceName - name of the workspace to check

Throws:

NoSuchWorkspaceException - if workspaceName is neither in the list of workspace nor null (i.e. default workspace).

createSessionInfo

protected SessionInfo createSessionInfo(Credentials credentials,
                                        String workspaceName)
                                 throws RepositoryException

Description copied from class: AbstractRepositoryService

Creates a session info instance for the given credentials and workspaceName. This default implementation creates a SessionInfoImpl instance and sets the userId and workspaceName. The user userId is null or the userId from credentials if it is of type SimpleCredentials.

Overrides:

createSessionInfo in class AbstractRepositoryService

Parameters:

credentials - the credentials.

workspaceName - the name of the workspace to access or null for the default workspace.

Returns:

a session info instance for the given credentials and workspaceName.

Throws:

RepositoryException

getItemInfoCache

public ItemInfoCache getItemInfoCache(SessionInfo sessionInfo)

Description copied from interface: RepositoryService

Returns a ItemInfoCache for the given SessionInfo.

Parameters:

sessionInfo -

Returns:

a new instance of ItemInfoCacheImpl

getNodeInfo

public NodeInfo getNodeInfo(SessionInfo sessionInfo,
                            NodeId nodeId)
                     throws ItemNotFoundException,
                            RepositoryException

This default implementation returns the first item returned by the call to RepositoryService.getItemInfos(SessionInfo, NodeId). The underlying assumption here is that the implementation and the persistence layer are optimized for batch reading. That is, a call to getItemInfos is no more expensive than retrieving the single NodeInfo only. If this assumption does not hold, subclasses should override this method.

Returns:

The NodeInfo for the node identified by the given id.

Throws:

ItemNotFoundException

RepositoryException

See Also:

Session.getItem(String), Node.getNode(String), VersionHistory.getAllVersions(), VersionHistory.getVersion(String), VersionHistory.getVersionByLabel(String), VersionHistory.getRootVersion(), Node.getBaseVersion(), Node.getVersionHistory(), Version.getContainingHistory()

getWorkspaceNames

public String[] getWorkspaceNames(SessionInfo sessionInfo)
                           throws RepositoryException

This default implementation first calls AbstractRepositoryService.checkSessionInfo(SessionInfo) with the sessionInfo, then returns the workspaces that were passed to the constructor of this repository service.

Returns:

An array of workspace names.

Throws:

RepositoryException

See Also:

Workspace.getAccessibleWorkspaceNames(), Workspace.getName()

isGranted

public boolean isGranted(SessionInfo sessionInfo,
                         ItemId itemId,
                         String[] actions)
                  throws RepositoryException

This default implementation first calls AbstractRepositoryService.checkSessionInfo(SessionInfo) with the sessionInfo, then returns false if the any of the actions are in WRITE_ACTIONS; otherwise returns true.

Returns:

true if the session with the given SessionInfo has the specified rights for the given item.

Throws:

RepositoryException

See Also:

Session.checkPermission(String, String)