Package cern.cmw

Provides common classes that are used by different CMW packages.

See:
Description

Interface Summary

DataTags

An interface defining the tags which are used in Data containers to identify the nature of the information stored.

Class Summary

Config	This class maintains a set of the configuration properties that can be used to customize the CMW behaviour.
Data	Allows clients and servers to exchange values whose types are not fixed at compile time.
DataCodec	This utility class allows to convert Data objects to byte arrays and reconstruct them from the binary representation.
DataEntry	Objects of this class serve as containers that can hold a value of different types.
Logger	Defines a general API for message logging and allows to connect it to a system specific logging facility.
LoggerFactory	A factory for the Logger objects.
LogLevel	Defines a set of standard logging levels that can be used to control logging output.
SLEquipData

Exception Summary

AccessDenied	Indicates a specific RBAC-related exception thrown when a user with specified credentials is not authorized to perform a given access.
BadParameter	Indicates that an illegal or inappropriate argument has been passed to a method.
BadToken	Indicates a specific RBAC-related exception thrown when an RBAC token is malformed or it's signature could not be successfully verified
CmwException	The common superclass for a number of exceptions that can be thrown by CMW.
InternalException	Thrown to indicate an internal error in the controls middleware.
IOError	Indicates an error in the low level I/O software/firmware/hardware used in the device servers.
LostUpdates	Exception used to inform subscribed clients about the number of lost updates.
NoConnection	Thrown to indicate that a remote device could not be contacted (for example, because the device server is down).
NoPermission	Indicates access denial to some of the properties issued from Role Based Access Control.
TimeOut	This exception is thrown when an operation on a device does not terminate within the specified time limit.
TokenExpired	Indicates a specific RBAC-related exception thrown when an RBAC token has expired.
TypeMismatch	Thrown by "extract" methods of the Data and DataEntry class to indicate that the actual type of the contained data does not correspond to the expected type.

Error Summary

CmwInternalError

Signals a severe internal error in the controls middleware.

Package cern.cmw Description

Provides common classes that are used by different CMW packages.