omero.gateway

Class Gateway

java.lang.Object

omero.gateway.Gateway

All Implemented Interfaces:

java.lang.AutoCloseable

public class Gateway
extends java.lang.Object
implements java.lang.AutoCloseable

A Gateway for simplifying access to an OMERO server

Since:

5.1

Author:

Dominik Lindner d.lindner@dundee.ac.uk

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROP_CONNECTOR_CLOSED Property to indicate that a Connector has been closed
static java.lang.String	PROP_CONNECTOR_CREATED Property to indicate that a Connector has been created
static java.lang.String	PROP_FACILITY_CLOSED Property to indicate that a Facility has been closed
static java.lang.String	PROP_FACILITY_CREATED Property to indicate that a Facility has been created
static java.lang.String	PROP_IMPORTSTORE_CLOSED Property to indicate that an import store has been closed
static java.lang.String	PROP_IMPORTSTORE_CREATED Property to indicate that an import store has been created
static java.lang.String	PROP_RENDERINGENGINE_CLOSED Property to indicate that a rendering engine has been closed
static java.lang.String	PROP_RENDERINGENGINE_CREATED Property to indicate that a rendering engine has been created
static java.lang.String	PROP_SESSION_CLOSED Property to indicate that a session has been closed
static java.lang.String	PROP_SESSION_CREATED Property to indicate that a session has been created
static java.lang.String	PROP_STATEFUL_SERVICE_CLOSED Property to indicate that a stateful service has been closed
static java.lang.String	PROP_STATEFUL_SERVICE_CREATED Property to indicate that a stateful service has been created
static java.lang.String	PROP_STATELESS_SERVICE_CREATED Property to indicate that a stateless service has been created

Constructor Summary

Constructors

Constructor and Description
Gateway(Logger log) Creates a new Gateway instance
Gateway(Logger log, CacheService cacheService) Creates a new Gateway instance
Gateway(Logger log, CacheService cacheService, java.util.concurrent.ExecutorService executorService, boolean executorShutdownOnDisconnect) Creates a new Gateway instance

Method Summary

Modifier and Type	Method and Description
void	addPropertyChangeListener(java.beans.PropertyChangeListener listener) Adds a PropertyChangeListener
java.lang.Boolean	canCreate(SecurityContext ctx) Get the read-only status of the server.
void	close()
void	closeConnector(SecurityContext ctx) Close a connector for a certain SecurityContext
void	closeImport(SecurityContext ctx, java.lang.String userName) Close Import for a certain user
void	closeService(SecurityContext ctx, omero.api.StatefulServiceInterfacePrx svc) Close a service
ExperimenterData	connect(LoginCredentials c) Connect to the server
omero.api.RawPixelsStorePrx	createPixelsStore(SecurityContext ctx) Create a RawPixelsStorePrx
omero.api.ThumbnailStorePrx	createThumbnailStore(SecurityContext ctx) Create a ThumbnailStorePrx
void	disconnect() Disconnects from the server
omero.api.IAdminPrx	getAdminService(SecurityContext ctx) Returns the IAdminPrx service.
omero.api.IAdminPrx	getAdminService(SecurityContext ctx, boolean secure) Returns the IAdminPrx service.
CacheService	getCacheService() Provides access to the CacheService
omero.api.IConfigPrx	getConfigService(SecurityContext ctx) Returns the IConfigPrx service.
omero.gateway.Connector	getConnector(SecurityContext ctx) Get a connector for a certain SecurityContext
omero.gateway.Connector	getConnector(SecurityContext ctx, boolean recreate, boolean permitNull) Returns the connector corresponding to the passed context.
omero.api.ExporterPrx	getExporterService(SecurityContext ctx) Returns the ExporterPrx service.
<T extends Facility> T	getFacility(java.lang.Class<T> type) Get a Facility to perform further operations with the server
OMEROMetadataStoreClient	getImportStore(SecurityContext ctx) Creates or recycles the import store.
OMEROMetadataStoreClient	getImportStore(SecurityContext ctx, java.lang.String userName) Creates or recycles the import store.
ExperimenterData	getLoggedInUser() Get the currently logged in user
Logger	getLogger() Provides access to the Logger
omero.api.IMetadataPrx	getMetadataService(SecurityContext ctx) Returns the IMetadataPrx service.
omero.api.IPixelsPrx	getPixelsService(SecurityContext ctx) Returns the IPixelsPrx service.
omero.api.RawPixelsStorePrx	getPixelsStore(SecurityContext ctx) Returns the RawPixelsStorePrx service.
omero.api.IContainerPrx	getPojosService(SecurityContext ctx) Returns the IContainerPrx service.
omero.api.IProjectionPrx	getProjectionService(SecurityContext ctx) Returns the IProjectionPrx service.
java.beans.PropertyChangeListener[]	getPropertyChangeListeners() Get the PropertyChangeListeners
omero.api.IQueryPrx	getQueryService(SecurityContext ctx) Returns the IQueryPrx service.
omero.api.RawFileStorePrx	getRawFileService(SecurityContext ctx) Returns the RawFileStorePrx service.
java.util.Map<SecurityContext,java.util.Set<java.lang.Long>>	getRenderingEngines() Returns the rendering engines to re-activate.
omero.api.RenderingEnginePrx	getRenderingService(SecurityContext ctx, long pixelsID) Returns the Rendering service.
omero.api.IRenderingSettingsPrx	getRenderingSettingsService(SecurityContext ctx) Returns the IRenderingSettingsPrx service.
omero.api.IRepositoryInfoPrx	getRepositoryService(SecurityContext ctx) Returns the IRepositoryInfoPrx service.
omero.api.IRoiPrx	getROIService(SecurityContext ctx) Returns the IRoiPrx service.
omero.api.IScriptPrx	getScriptService(SecurityContext ctx) Returns the IScriptPrx service.
omero.api.SearchPrx	getSearchService(SecurityContext ctx) Returns the SearchPrx service.
java.lang.String	getServerVersion() Get the version of the server the Gateway is connected to
java.lang.String	getSessionId(ExperimenterData user) Get the ID of the current session
omero.grid.SharedResourcesPrx	getSharedResources(SecurityContext ctx) Returns the SharedResourcesPrx service.
omero.api.ThumbnailStorePrx	getThumbnailService(SecurityContext ctx) Returns the ThumbnailStorePrx service.
omero.api.ITypesPrx	getTypesService(SecurityContext ctx) Returns the ITypesPrx service.
omero.api.IUpdatePrx	getUpdateService(SecurityContext ctx) Returns the IUpdatePrx service.
omero.api.IUpdatePrx	getUpdateService(SecurityContext ctx, java.lang.String userName) Returns the IUpdatePrx service.
ExperimenterData	getUserDetails(SecurityContext ctx, java.lang.String name) Get the user details of a certain user
boolean	isAlive(SecurityContext ctx) Checks if there is a Connector for a particular SecurityContext
boolean	isConnected() Check if the Gateway is still connected to the server
boolean	isNetworkUp(boolean useCachedValue) Checks if the network interface is up.
boolean	joinSession() Tries to rejoin the session.
void	removePropertyChangeListener(java.beans.PropertyChangeListener listener) Removes a PropertyChangeListener
ProcessCallbackI	runScript(SecurityContext ctx, long scriptID, java.util.Map<java.lang.String,omero.RType> parameters) Run a script on the server
void	shutDownDerivedConnector(SecurityContext ctx) Shuts down the connectors created while creating/importing data for other users.
void	shutdownRenderingEngine(SecurityContext ctx, long pixelsID) Shuts down the rendering engine
<T> java.util.concurrent.Future<T>	submit(java.util.concurrent.Callable<T> task) Submits an async task
CmdCallbackI	submit(SecurityContext ctx, java.util.List<omero.cmd.Request> commands, SecurityContext target) Executes the commands.
CmdCallbackI	submit(SecurityContext ctx, omero.cmd.Request cmd) Directly submit a Request to the server

Methods inherited from class java.lang.Object

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

Field Detail

PROP_CONNECTOR_CREATED

public static final java.lang.String PROP_CONNECTOR_CREATED

Property to indicate that a Connector has been created

See Also:

Constant Field Values

PROP_CONNECTOR_CLOSED

public static final java.lang.String PROP_CONNECTOR_CLOSED

Property to indicate that a Connector has been closed

See Also:

Constant Field Values

PROP_SESSION_CREATED

public static final java.lang.String PROP_SESSION_CREATED

Property to indicate that a session has been created

See Also:

Constant Field Values

PROP_SESSION_CLOSED

public static final java.lang.String PROP_SESSION_CLOSED

Property to indicate that a session has been closed

See Also:

Constant Field Values

PROP_FACILITY_CREATED

public static final java.lang.String PROP_FACILITY_CREATED

Property to indicate that a Facility has been created

See Also:

Constant Field Values

PROP_FACILITY_CLOSED

public static final java.lang.String PROP_FACILITY_CLOSED

Property to indicate that a Facility has been closed

See Also:

Constant Field Values

PROP_IMPORTSTORE_CREATED

public static final java.lang.String PROP_IMPORTSTORE_CREATED

Property to indicate that an import store has been created

See Also:

Constant Field Values

PROP_IMPORTSTORE_CLOSED

public static final java.lang.String PROP_IMPORTSTORE_CLOSED

Property to indicate that an import store has been closed

See Also:

Constant Field Values

PROP_RENDERINGENGINE_CREATED

public static final java.lang.String PROP_RENDERINGENGINE_CREATED

Property to indicate that a rendering engine has been created

See Also:

Constant Field Values

PROP_RENDERINGENGINE_CLOSED

public static final java.lang.String PROP_RENDERINGENGINE_CLOSED

Property to indicate that a rendering engine has been closed

See Also:

Constant Field Values

PROP_STATEFUL_SERVICE_CREATED

public static final java.lang.String PROP_STATEFUL_SERVICE_CREATED

Property to indicate that a stateful service has been created

See Also:

Constant Field Values

PROP_STATEFUL_SERVICE_CLOSED

public static final java.lang.String PROP_STATEFUL_SERVICE_CLOSED

Property to indicate that a stateful service has been closed

See Also:

Constant Field Values

PROP_STATELESS_SERVICE_CREATED

public static final java.lang.String PROP_STATELESS_SERVICE_CREATED

Property to indicate that a stateless service has been created

See Also:

Constant Field Values

Constructor Detail

Gateway

public Gateway(Logger log)

Creates a new Gateway instance

Parameters:

log - A Logger

Gateway

public Gateway(Logger log,
               CacheService cacheService)

Creates a new Gateway instance

Parameters:

log - A Logger

cacheService - A CacheService, can be null

Gateway

public Gateway(Logger log,
               CacheService cacheService,
               java.util.concurrent.ExecutorService executorService,
               boolean executorShutdownOnDisconnect)

Creates a new Gateway instance

Parameters:

log - A Logger

cacheService - A CacheService, can be null

executorService - A ExecutorService for handling asynchronous tasks, can be null (in which case the Java built-in cached thread pool will be used)

executorShutdownOnDisconnect - Flag to indicate that executor threads should be shutdown on disconnect (only taken into account if an ExecutorService was provided; the default cached thread pool will be shut down by default)

Method Detail

submit

public <T> java.util.concurrent.Future<T> submit(java.util.concurrent.Callable<T> task)

Submits an async task

Parameters:

task - The task

Returns:

The callback reference

connect

public ExperimenterData connect(LoginCredentials c)
                         throws DSOutOfServiceException

Connect to the server

Parameters:

c - The LoginCredentials

Returns:

The ExperimenterData who is logged in

Throws:

DSOutOfServiceException - If the connection can't be established

getLoggedInUser

public ExperimenterData getLoggedInUser()

Get the currently logged in user

Returns:

See above.

disconnect

public void disconnect()

Disconnects from the server

joinSession

public boolean joinSession()

Tries to rejoin the session.

Returns:

See above.

isConnected

public boolean isConnected()

Check if the Gateway is still connected to the server

Returns:

See above.

getSessionId

public java.lang.String getSessionId(ExperimenterData user)
                              throws DSOutOfServiceException

Get the ID of the current session

Parameters:

user - The user to get the session ID for

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

getServerVersion

public java.lang.String getServerVersion()
                                  throws DSOutOfServiceException

Get the version of the server the Gateway is connected to

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

getFacility

public <T extends Facility> T getFacility(java.lang.Class<T> type)
                                   throws java.util.concurrent.ExecutionException

Get a Facility to perform further operations with the server

Parameters:

type - The kind of Facility to request

Returns:

See above

Throws:

java.util.concurrent.ExecutionException - If the Facility can't be retrieved or instantiated

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)

Adds a PropertyChangeListener

Parameters:

listener - The listener

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)

Removes a PropertyChangeListener

Parameters:

listener - The listener

getPropertyChangeListeners

public java.beans.PropertyChangeListener[] getPropertyChangeListeners()

Get the PropertyChangeListeners

Returns:

See above

submit

public CmdCallbackI submit(SecurityContext ctx,
                           java.util.List<omero.cmd.Request> commands,
                           SecurityContext target)
                    throws java.lang.Throwable

Executes the commands.

Parameters:

ctx - The SecurityContext

commands - The commands to execute.

target - The target context is any.

Returns:

See above.

Throws:

java.lang.Throwable - If an error occurred

submit

public CmdCallbackI submit(SecurityContext ctx,
                           omero.cmd.Request cmd)
                    throws java.lang.Throwable

Directly submit a Request to the server

Parameters:

ctx - The SecurityContext

cmd - The Request to submit

Returns:

A callback reference, CmdCallbackI

Throws:

java.lang.Throwable - If an error occurred

closeImport

public void closeImport(SecurityContext ctx,
                        java.lang.String userName)

Close Import for a certain user

Parameters:

ctx - The SecurityContext

userName - The name of the user which import should be closed

runScript

public ProcessCallbackI runScript(SecurityContext ctx,
                                  long scriptID,
                                  java.util.Map<java.lang.String,omero.RType> parameters)
                           throws DSOutOfServiceException,
                                  omero.ServerError

Run a script on the server

Parameters:

ctx - The SecurityContext

scriptID - The ID of the script

parameters - Parameters for the script

Returns:

A callback reference, ProcessCallbackI

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

omero.ServerError - If an error in the script execution occurred

getLogger

public Logger getLogger()

Provides access to the Logger

Returns:

See above

getCacheService

public CacheService getCacheService()

Provides access to the CacheService

Returns:

See above

getSharedResources

public omero.grid.SharedResourcesPrx getSharedResources(SecurityContext ctx)
                                                 throws DSOutOfServiceException

Returns the SharedResourcesPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getRenderingSettingsService

public omero.api.IRenderingSettingsPrx getRenderingSettingsService(SecurityContext ctx)
                                                            throws DSOutOfServiceException

Returns the IRenderingSettingsPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getRepositoryService

public omero.api.IRepositoryInfoPrx getRepositoryService(SecurityContext ctx)
                                                  throws DSOutOfServiceException

Returns the IRepositoryInfoPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getScriptService

public omero.api.IScriptPrx getScriptService(SecurityContext ctx)
                                      throws DSOutOfServiceException

Returns the IScriptPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getPojosService

public omero.api.IContainerPrx getPojosService(SecurityContext ctx)
                                        throws DSOutOfServiceException

Returns the IContainerPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getQueryService

public omero.api.IQueryPrx getQueryService(SecurityContext ctx)
                                    throws DSOutOfServiceException

Returns the IQueryPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getUpdateService

public omero.api.IUpdatePrx getUpdateService(SecurityContext ctx)
                                      throws DSOutOfServiceException

Returns the IUpdatePrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getUpdateService

public omero.api.IUpdatePrx getUpdateService(SecurityContext ctx,
                                             java.lang.String userName)
                                      throws DSOutOfServiceException

Returns the IUpdatePrx service.

Parameters:

ctx - The SecurityContext

userName - The username

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getMetadataService

public omero.api.IMetadataPrx getMetadataService(SecurityContext ctx)
                                          throws DSOutOfServiceException

Returns the IMetadataPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getROIService

public omero.api.IRoiPrx getROIService(SecurityContext ctx)
                                throws DSOutOfServiceException

Returns the IRoiPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getConfigService

public omero.api.IConfigPrx getConfigService(SecurityContext ctx)
                                      throws DSOutOfServiceException

Returns the IConfigPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getThumbnailService

public omero.api.ThumbnailStorePrx getThumbnailService(SecurityContext ctx)
                                                throws DSOutOfServiceException

Returns the ThumbnailStorePrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getExporterService

public omero.api.ExporterPrx getExporterService(SecurityContext ctx)
                                         throws DSOutOfServiceException

Returns the ExporterPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getRawFileService

public omero.api.RawFileStorePrx getRawFileService(SecurityContext ctx)
                                            throws DSOutOfServiceException

Returns the RawFileStorePrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getPixelsStore

public omero.api.RawPixelsStorePrx getPixelsStore(SecurityContext ctx)
                                           throws DSOutOfServiceException

Returns the RawPixelsStorePrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getPixelsService

public omero.api.IPixelsPrx getPixelsService(SecurityContext ctx)
                                      throws DSOutOfServiceException

Returns the IPixelsPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getSearchService

public omero.api.SearchPrx getSearchService(SecurityContext ctx)
                                     throws DSOutOfServiceException

Returns the SearchPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getProjectionService

public omero.api.IProjectionPrx getProjectionService(SecurityContext ctx)
                                              throws DSOutOfServiceException

Returns the IProjectionPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getAdminService

public omero.api.IAdminPrx getAdminService(SecurityContext ctx)
                                    throws DSOutOfServiceException

Returns the IAdminPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getAdminService

public omero.api.IAdminPrx getAdminService(SecurityContext ctx,
                                           boolean secure)
                                    throws DSOutOfServiceException

Returns the IAdminPrx service.

Parameters:

ctx - The SecurityContext

secure - Pass true to have a secure admin service, false otherwise.

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getImportStore

public OMEROMetadataStoreClient getImportStore(SecurityContext ctx)
                                        throws DSOutOfServiceException

Creates or recycles the import store.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getImportStore

public OMEROMetadataStoreClient getImportStore(SecurityContext ctx,
                                               java.lang.String userName)
                                        throws DSOutOfServiceException

Creates or recycles the import store.

Parameters:

ctx - The SecurityContext

userName - The username

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

getRenderingService

public omero.api.RenderingEnginePrx getRenderingService(SecurityContext ctx,
                                                        long pixelsID)
                                                 throws DSOutOfServiceException,
                                                        omero.ServerError

Returns the Rendering service.

Parameters:

ctx - The SecurityContext

pixelsID - The pixels ID

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

omero.ServerError - Thrown if the service cannot be initialized.

getUserDetails

public ExperimenterData getUserDetails(SecurityContext ctx,
                                       java.lang.String name)
                                throws DSOutOfServiceException

Get the user details of a certain user

Parameters:

ctx - The SecurityContext

name - The name of the user

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

isNetworkUp

public boolean isNetworkUp(boolean useCachedValue)

Checks if the network interface is up.

Parameters:

useCachedValue - Uses the result of the last check instead of really performing the test if the last check is not older than 5 sec

Returns:

See above

getConnector

public omero.gateway.Connector getConnector(SecurityContext ctx)
                                     throws DSOutOfServiceException

Get a connector for a certain SecurityContext

Parameters:

ctx - The SecurityContext

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

closeConnector

public void closeConnector(SecurityContext ctx)

Close a connector for a certain SecurityContext

Parameters:

ctx - The SecurityContext

closeService

public void closeService(SecurityContext ctx,
                         omero.api.StatefulServiceInterfacePrx svc)

Close a service

Parameters:

ctx - The SecurityContext

svc - The service to close

createPixelsStore

public omero.api.RawPixelsStorePrx createPixelsStore(SecurityContext ctx)
                                              throws DSOutOfServiceException

Create a RawPixelsStorePrx

Parameters:

ctx - The SecurityContext

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

createThumbnailStore

public omero.api.ThumbnailStorePrx createThumbnailStore(SecurityContext ctx)
                                                 throws DSOutOfServiceException

Create a ThumbnailStorePrx

Parameters:

ctx - The SecurityContext

Returns:

See above

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

isAlive

public boolean isAlive(SecurityContext ctx)
                throws DSOutOfServiceException

Checks if there is a Connector for a particular SecurityContext

Parameters:

ctx - The SecurityContext

Returns:

true if there is one, false otherwise

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

getConnector

public omero.gateway.Connector getConnector(SecurityContext ctx,
                                            boolean recreate,
                                            boolean permitNull)
                                     throws DSOutOfServiceException

Returns the connector corresponding to the passed context.

Parameters:

ctx - The security context.

recreate - whether or not to allow the recreation of the Connector. A DSOutOfServiceException is thrown if this is set to false and no Connector is available.

permitNull - whether or not to throw a DSOutOfServiceException if no Connector is available by the end of the execution.

Returns:

See above.

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

shutDownDerivedConnector

public void shutDownDerivedConnector(SecurityContext ctx)
                              throws DSOutOfServiceException

Shuts down the connectors created while creating/importing data for other users.

Parameters:

ctx - The SecurityContext

Throws:

DSOutOfServiceException - If the connection is broken, or not logged in

getRenderingEngines

public java.util.Map<SecurityContext,java.util.Set<java.lang.Long>> getRenderingEngines()

Returns the rendering engines to re-activate.

Returns:

See above.

shutdownRenderingEngine

public void shutdownRenderingEngine(SecurityContext ctx,
                                    long pixelsID)

Shuts down the rendering engine

Parameters:

ctx - The SecurityContext

pixelsID - The pixels id

getTypesService

public omero.api.ITypesPrx getTypesService(SecurityContext ctx)
                                    throws DSOutOfServiceException

Returns the ITypesPrx service.

Parameters:

ctx - The SecurityContext

Returns:

See above.

Throws:

DSOutOfServiceException - Thrown if the service cannot be initialized.

canCreate

public java.lang.Boolean canCreate(SecurityContext ctx)
                            throws DSOutOfServiceException

Get the read-only status of the server. Warning: This is experimental API that is subject to change.

Parameters:

ctx - the SecurityContext to use for the query

Returns:

true if the server is wholly in read-write mode, false if the server is wholly in read-only mode, otherwise null

Throws:

DSOutOfServiceException - if the status query failed

close

public void close()
           throws java.lang.Exception

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.lang.Exception