org.apache.sling.jcr.base
Class AbstractSlingRepository2

java.lang.Object
  org.apache.sling.jcr.base.AbstractSlingRepository2

All Implemented Interfaces:

javax.jcr.Repository, org.apache.sling.jcr.api.SlingRepository

public abstract class AbstractSlingRepository2
extends Object
implements org.apache.sling.jcr.api.SlingRepository

The AbstractSlingRepository2 is an abstract implementation of the SlingRepository version 2.2 interface (phasing loginAdministrative(String) out in favor of loginService(String, String)) which provides default support for attached repositories as well as namespace mapping support by wrapping sessions with namespace support (see getNamespaceAwareSession(Session)).

Implementations of the SlingRepository interface may wish to extend this class to benefit from default implementations of most methods.

To be able to know the calling bundle to implement the loginService(String, String) method the bundle using the repository service has to be provided in the constructor.

The premise of this abstract class is that an instance of an implementation of this abstract class is handed out to each consumer of the SlingRepository service. Each instance is generally based on the same delegated repository instance and also makes use of a single system wide namespace session support.

Since:

API version 2.3 (bundle version 2.3)

See Also:

AbstractSlingRepositoryManager

Field Summary

Fields inherited from interface javax.jcr.Repository

IDENTIFIER_STABILITY, IDENTIFIER_STABILITY_INDEFINITE_DURATION, IDENTIFIER_STABILITY_METHOD_DURATION, IDENTIFIER_STABILITY_SAVE_DURATION, IDENTIFIER_STABILITY_SESSION_DURATION, LEVEL_1_SUPPORTED, LEVEL_2_SUPPORTED, NODE_TYPE_MANAGEMENT_AUTOCREATED_DEFINITIONS_SUPPORTED, NODE_TYPE_MANAGEMENT_INHERITANCE, NODE_TYPE_MANAGEMENT_INHERITANCE_MINIMAL, NODE_TYPE_MANAGEMENT_INHERITANCE_MULTIPLE, NODE_TYPE_MANAGEMENT_INHERITANCE_SINGLE, NODE_TYPE_MANAGEMENT_MULTIPLE_BINARY_PROPERTIES_SUPPORTED, NODE_TYPE_MANAGEMENT_MULTIVALUED_PROPERTIES_SUPPORTED, NODE_TYPE_MANAGEMENT_ORDERABLE_CHILD_NODES_SUPPORTED, NODE_TYPE_MANAGEMENT_OVERRIDES_SUPPORTED, NODE_TYPE_MANAGEMENT_PRIMARY_ITEM_NAME_SUPPORTED, NODE_TYPE_MANAGEMENT_PROPERTY_TYPES, NODE_TYPE_MANAGEMENT_RESIDUAL_DEFINITIONS_SUPPORTED, NODE_TYPE_MANAGEMENT_SAME_NAME_SIBLINGS_SUPPORTED, NODE_TYPE_MANAGEMENT_UPDATE_IN_USE_SUPORTED, NODE_TYPE_MANAGEMENT_VALUE_CONSTRAINTS_SUPPORTED, OPTION_ACCESS_CONTROL_SUPPORTED, OPTION_ACTIVITIES_SUPPORTED, OPTION_BASELINES_SUPPORTED, OPTION_JOURNALED_OBSERVATION_SUPPORTED, OPTION_LIFECYCLE_SUPPORTED, OPTION_LOCKING_SUPPORTED, OPTION_NODE_AND_PROPERTY_WITH_SAME_NAME_SUPPORTED, OPTION_NODE_TYPE_MANAGEMENT_SUPPORTED, OPTION_OBSERVATION_SUPPORTED, OPTION_QUERY_SQL_SUPPORTED, OPTION_RETENTION_SUPPORTED, OPTION_SHAREABLE_NODES_SUPPORTED, OPTION_SIMPLE_VERSIONING_SUPPORTED, OPTION_TRANSACTIONS_SUPPORTED, OPTION_UNFILED_CONTENT_SUPPORTED, OPTION_UPDATE_MIXIN_NODE_TYPES_SUPPORTED, OPTION_UPDATE_PRIMARY_NODE_TYPE_SUPPORTED, OPTION_VERSIONING_SUPPORTED, OPTION_WORKSPACE_MANAGEMENT_SUPPORTED, OPTION_XML_EXPORT_SUPPORTED, OPTION_XML_IMPORT_SUPPORTED, QUERY_FULL_TEXT_SEARCH_SUPPORTED, QUERY_JOINS, QUERY_JOINS_INNER, QUERY_JOINS_INNER_OUTER, QUERY_JOINS_NONE, QUERY_LANGUAGES, QUERY_STORED_QUERIES_SUPPORTED, QUERY_XPATH_DOC_ORDER, QUERY_XPATH_POS_INDEX, REP_NAME_DESC, REP_VENDOR_DESC, REP_VENDOR_URL_DESC, REP_VERSION_DESC, SPEC_NAME_DESC, SPEC_VERSION_DESC, WRITE_SUPPORTED

Constructor Summary

protected

AbstractSlingRepository2(AbstractSlingRepositoryManager manager, org.osgi.framework.Bundle usingBundle) Sets up this abstract SlingRepository implementation.

Method Summary

protected abstract javax.jcr.Session	createAdministrativeSession(String workspace) Creates an administrative session to access the indicated workspace.
protected javax.jcr.Session	createServiceSession(String serviceUserName, String workspace) Creates a service-session for the service's serviceUserName by impersonating the user from an administrative session.
String	getDefaultWorkspace() Returns the default workspace to login to if any of the login and createSession methods is called without an explicit workspace name.
String	getDescriptor(String name)
String[]	getDescriptorKeys()
javax.jcr.Value	getDescriptorValue(String key)
javax.jcr.Value[]	getDescriptorValues(String key)
protected javax.jcr.Session	getNamespaceAwareSession(javax.jcr.Session session) Wraps the given session with support for name spaces defined by bundles deployed in the OSGi framework.
protected javax.jcr.Repository	getRepository() Returns the actual repository to which all JCR Repository interface methods implemented by this class are delegated.
protected AbstractSlingRepositoryManager	getSlingRepositoryManager()
boolean	isSingleValueDescriptor(String key)
boolean	isStandardDescriptor(String key)
javax.jcr.Session	login() Same as calling login(null, null).
javax.jcr.Session	login(javax.jcr.Credentials credentials) Same as calling login(credentials, null).
javax.jcr.Session	login(javax.jcr.Credentials credentials, String workspace) Logs into the repository at the given workspace with the given credentials and returns a namespace aware session by calling getNamespaceAwareSession(Session) with the session returned from the repository..
javax.jcr.Session	login(String workspace) Same as calling login(null, workspace).
javax.jcr.Session	loginAdministrative(String workspace) Login as an administrative user.
javax.jcr.Session	loginService(String subServiceName, String workspace) Actual implementation of the loginService(String, String) method taking into account the bundle calling this method.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSlingRepository2

protected AbstractSlingRepository2(AbstractSlingRepositoryManager manager,
                                   org.osgi.framework.Bundle usingBundle)

Sets up this abstract SlingRepository implementation.

Parameters:

manager - The AbstractSlingRepositoryManager controlling this instance as well as the actual JCR repository instance used by this.

usingBundle - The bundle using this instance. This is used by the loginService(String, String) method, which will not be able to login if this parameter is null

Method Detail

getSlingRepositoryManager

protected final AbstractSlingRepositoryManager getSlingRepositoryManager()

Returns:

The AbstractSlingRepositoryManager controlling this instances

getRepository

protected final javax.jcr.Repository getRepository()

Returns the actual repository to which all JCR Repository interface methods implemented by this class are delegated.

Returns:

The delegated repository.

getDefaultWorkspace

public final String getDefaultWorkspace()

Returns the default workspace to login to if any of the login and createSession methods is called without an explicit workspace name.

This method may return null in which case the actual default workspace used depends on the underlying JCR Repository implementation.

Specified by:

getDefaultWorkspace in interface org.apache.sling.jcr.api.SlingRepository

getNamespaceAwareSession

protected final javax.jcr.Session getNamespaceAwareSession(javax.jcr.Session session)
                                                    throws javax.jcr.RepositoryException

Wraps the given session with support for name spaces defined by bundles deployed in the OSGi framework. See NamespaceMappingSupport for details about namespace support in Sling.

To fully support namespaces, this method must be called from each implementation of any of the login methods implemented by this class or its extensions.

Parameters:

session - The Session to wrap. This must not be null

Returns:

The wrapped session

Throws:

javax.jcr.RepositoryException - If an error occurrs wrapping the session

NullPointerException - If session is null

createAdministrativeSession

protected abstract javax.jcr.Session createAdministrativeSession(String workspace)
                                                          throws javax.jcr.RepositoryException

Creates an administrative session to access the indicated workspace.

This method is called by the loginAdministrative(String) and createServiceSession(String, String) methods.

Implementations of this method must not call getNamespaceAwareSession(Session) as this is handled by the calling method.

Parameters:

workspace - The workspace to access or null to access the default workspace

Returns:

An administrative session

Throws:

javax.jcr.RepositoryException - If a general error occurs during login

See Also:

createServiceSession(String, String), loginAdministrative(String)

createServiceSession

protected javax.jcr.Session createServiceSession(String serviceUserName,
                                                 String workspace)
                                          throws javax.jcr.RepositoryException

Creates a service-session for the service's serviceUserName by impersonating the user from an administrative session.

The administrative session is created calling createAdministrativeSession(workspace) and is logged out before this method returns.

Implementations of this class may overwrite this method with a better implementation, notably one which does not involve a temporary creation of an administrative session.

This method must not call getNamespaceAwareSession(Session) as this is handled by the calling method.

Parameters:

serviceUserName - The name of the user to create the session for

workspace - The workspace to access or null to access the default workspace

Returns:

A session for the given user

Throws:

javax.jcr.RepositoryException - If a general error occurs while creating the session

login

public javax.jcr.Session login()
                        throws javax.jcr.LoginException,
                               javax.jcr.RepositoryException

Same as calling login(null, null).

This method may be overwritten. Care must be taken to call getNamespaceAwareSession(Session) before return to the caller.

Specified by:

login in interface javax.jcr.Repository

Returns:

the result of calling login(null, null).

Throws:

javax.jcr.LoginException - If login is not possible

javax.jcr.RepositoryException - If another error occurrs during login

See Also:

login(Credentials, String), getNamespaceAwareSession(Session)

login

public javax.jcr.Session login(javax.jcr.Credentials credentials)
                        throws javax.jcr.LoginException,
                               javax.jcr.RepositoryException

Same as calling login(credentials, null).

This method may be overwritten. Care must be taken to call getNamespaceAwareSession(Session) before return to the caller.

Specified by:

login in interface javax.jcr.Repository

Parameters:

credentials - The Credentials to use to login.

Returns:

the result of calling login(credentials, null).

Throws:

javax.jcr.LoginException - If login is not possible

javax.jcr.RepositoryException - If another error occurrs during login

See Also:

login(Credentials, String), getNamespaceAwareSession(Session)

login

public javax.jcr.Session login(String workspace)
                        throws javax.jcr.LoginException,
                               javax.jcr.NoSuchWorkspaceException,
                               javax.jcr.RepositoryException

Same as calling login(null, workspace).

This method may be overwritten. Care must be taken to call getNamespaceAwareSession(Session) before return to the caller.

Specified by:

login in interface javax.jcr.Repository

Parameters:

workspace - The workspace to access or null to access the default workspace

Returns:

the result of calling login(null, workspace).

Throws:

javax.jcr.LoginException - If login is not possible

javax.jcr.RepositoryException - If another error occurrs during login

javax.jcr.NoSuchWorkspaceException

See Also:

login(Credentials, String), getNamespaceAwareSession(Session)

login

public javax.jcr.Session login(javax.jcr.Credentials credentials,
                               String workspace)
                        throws javax.jcr.LoginException,
                               javax.jcr.NoSuchWorkspaceException,
                               javax.jcr.RepositoryException

Logs into the repository at the given workspace with the given credentials and returns a namespace aware session by calling getNamespaceAwareSession(Session) with the session returned from the repository..

This method logs in as a guest if null credentials are provided. The method may be overwritten to implement a different behaviour as indicated by the JCR specification for this method to use external mechanisms to login instead of leveraging provided credentials. An implementation overwriting this method must also call getNamespaceAwareSession(Session) before returning the session to the caller.

This method may be overwritten. Care must be taken to call getNamespaceAwareSession(Session) before return to the caller.

Specified by:

login in interface javax.jcr.Repository

Parameters:

credentials - The Credentials to use to login. If this is null JCR GuestCredentials are used to login.

workspace - The workspace to access or null to access the default workspace

Throws:

javax.jcr.LoginException - If login is not possible

javax.jcr.NoSuchWorkspaceException - if the desired workspace is not available

javax.jcr.RepositoryException - If another error occurrs during login

See Also:

getNamespaceAwareSession(Session)

loginService

public final javax.jcr.Session loginService(String subServiceName,
                                            String workspace)
                                     throws javax.jcr.LoginException,
                                            javax.jcr.RepositoryException

Actual implementation of the loginService(String, String) method taking into account the bundle calling this method.

This method uses the ServiceUserMapper service to map the named service to a user and then calls the createServiceSession(String, String) method actually create a session for that user.

Specified by:

loginService in interface org.apache.sling.jcr.api.SlingRepository

Parameters:

subServiceName - An optional subService identifier (may be null)

workspace - The workspace to access or null to access the default workspace

Returns:

A session authenticated with the service user

Throws:

javax.jcr.LoginException - if the service name cannot be derived or if logging is as the user to which the service name maps is not allowed

javax.jcr.RepositoryException - If a general error occurs while creating the session

loginAdministrative

public final javax.jcr.Session loginAdministrative(String workspace)
                                            throws javax.jcr.RepositoryException

Login as an administrative user. This method is deprecated and its use can be completely disabled by setting disableLoginAdministrative to true.

This implementation cannot be overwritten but, unless disabled, forwards to the createAdministrativeSession(String) method.

Specified by:

loginAdministrative in interface org.apache.sling.jcr.api.SlingRepository

Parameters:

workspace - The workspace to access or null to access the default workspace

Returns:

An administrative session

Throws:

javax.jcr.RepositoryException - If the login fails or has been disabled

getDescriptor

public String getDescriptor(String name)

Specified by:

getDescriptor in interface javax.jcr.Repository

getDescriptorKeys

public String[] getDescriptorKeys()

Specified by:

getDescriptorKeys in interface javax.jcr.Repository

getDescriptorValue

public javax.jcr.Value getDescriptorValue(String key)

Specified by:

getDescriptorValue in interface javax.jcr.Repository

getDescriptorValues

public javax.jcr.Value[] getDescriptorValues(String key)

Specified by:

getDescriptorValues in interface javax.jcr.Repository

isSingleValueDescriptor

public boolean isSingleValueDescriptor(String key)

Specified by:

isSingleValueDescriptor in interface javax.jcr.Repository

isStandardDescriptor

public boolean isStandardDescriptor(String key)

Specified by:

isStandardDescriptor in interface javax.jcr.Repository