com.cosylab.cdb.jdal

Class WDALImpl

java.lang.Object

com.cosylab.cdb.jdal.WDALBaseImpl

com.cosylab.cdb.jdal.WDALImpl

All Implemented Interfaces:

Recoverer

public class WDALImpl
extends WDALBaseImpl

Implementation of Writable Data Access Layer (WDAL) interface. Enables adding, removing and modifying nodes in ConfigurationDataBase (CDB). Nodes are xml files organized in directories so that directory has a xml file named exactly as directory. For example node /alma/LAMP1 is valid CDB node if there is file /alma/LAMP1/LAMP1.xml. It is implemented as wraper around DAL.

Author:

dvitas

Field Summary

Fields inherited from class com.cosylab.cdb.jdal.WDALBaseImpl

dalImpl, logger

Constructor Summary

Constructors

Constructor and Description
WDALImpl(java.lang.String[] args, org.omg.CORBA.ORB orb, org.omg.PortableServer.POA poa, java.util.logging.Logger logger) Constructor as it is for DAL

Method Summary

Modifier and Type	Method and Description
void	add_node(java.lang.String curl, java.lang.String xml) Adds a new node specified by curl to the CDB initially filed with
WDAO	get_WDAO_Servant(java.lang.String curl)
java.io.File	getNodeFile(java.lang.String curl) Returns File object for given curl
boolean	nodeExists(java.lang.String curl) Returns true if node specified with curl exists
void	remove_node(java.lang.String curl) Removes node identified by curl by deleting its file and directory if empty.
void	saveChanges(java.lang.String curl, java.util.Map propertyMap) Save changes given by map to the node identified by curl
void	set_DAO(java.lang.String curl, java.lang.String xml) Change content of a node identified by curl so given xml is scanned for differences which are applied.
void	validateXML(java.lang.String xml) Check that everything conforms to the schema in given xml.

Methods inherited from class com.cosylab.cdb.jdal.WDALBaseImpl

add_change_listener, clear_cache_all, clear_cache, configuration_name, get_DAO_Servant, get_DAO, get_default_logLevels, get_logger_names, get_logLevels, list_daos, list_nodes, listen_for_changes, recoverClients, refresh_logging_config, remove_change_listener, set_default_logLevels, set_logLevels, shutdown, shutdownEmbeddedWDALImpl

Methods inherited from class java.lang.Object

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

Constructor Detail

WDALImpl

public WDALImpl(java.lang.String[] args,
                org.omg.CORBA.ORB orb,
                org.omg.PortableServer.POA poa,
                java.util.logging.Logger logger)

Constructor as it is for DAL

Parameters:

args -

orb -

poa -

Method Detail

get_WDAO_Servant

public WDAO get_WDAO_Servant(java.lang.String curl)
                      throws CDBXMLErrorEx

Throws:

CDBXMLErrorEx

add_node

public void add_node(java.lang.String curl,
                     java.lang.String xml)
              throws CDBRecordAlreadyExistsEx,
                     CDBXMLErrorEx,
                     CDBExceptionEx

Adds a new node specified by curl to the CDB initially filed with

Parameters:

curl - uri for the CDB node

xml -

Throws:

CDBRecordAlreadyExistsEx

CDBXMLErrorEx

CDBExceptionEx

remove_node

public void remove_node(java.lang.String curl)
                 throws CDBRecordDoesNotExistEx,
                        CDBRecordIsReadOnlyEx

Removes node identified by curl by deleting its file and directory if empty.

Parameters:

curl - uri for the CDB node

Throws:

CDBRecordDoesNotExistEx

CDBRecordIsReadOnlyEx

set_DAO

public void set_DAO(java.lang.String curl,
                    java.lang.String xml)
             throws CDBRecordDoesNotExistEx,
                    CDBFieldDoesNotExistEx,
                    CDBRecordIsReadOnlyEx,
                    CDBXMLErrorEx,
                    CDBExceptionEx

Change content of a node identified by curl so given xml is scanned for differences which are applied. This function can be invoked with full expanded version of the existing xml with some changes or it can be invoked by small xml with only changes to be applied. For example to change parameter 'Timeot' in Manager we can pass as xml

and new value will be saved in the xml file.

Parameters:

curl - uri for the CDB node

xml -

Throws:

CDBRecordDoesNotExistEx

CDBFieldDoesNotExistEx

CDBRecordIsReadOnlyEx

CDBXMLErrorEx

CDBExceptionEx

nodeExists

public boolean nodeExists(java.lang.String curl)

Returns true if node specified with curl exists

Parameters:

curl - uri of the CDB node

Returns:

true if node exists false otherwise

getNodeFile

public java.io.File getNodeFile(java.lang.String curl)

Returns File object for given curl

Parameters:

curl - uri of the CDB node

Returns:

File object for CDB node

saveChanges

public void saveChanges(java.lang.String curl,
                        java.util.Map propertyMap)
                 throws AcsJCDBXMLErrorEx,
                        AcsJCDBExceptionEx,
                        AcsJCDBFieldDoesNotExistEx

Save changes given by map to the node identified by curl

Parameters:

curl -

propertyMap -

Throws:

CDBXMLErrorEx

CDBExceptionEx

CDBFieldDoesNotExistEx

AcsJCDBXMLErrorEx

AcsJCDBExceptionEx

AcsJCDBFieldDoesNotExistEx

validateXML

public void validateXML(java.lang.String xml)
                 throws AcsJCDBXMLErrorEx

Check that everything conforms to the schema in given xml. This check will be done by parser used in DAL.

Parameters:

xml -

Throws:

AcsJCDBXMLErrorEx