/// <summary>
///
/// </summary>
/// <param name="qualifierReferenceID">the ID of the resource represented by the qualifier (null if not necessary);</param>
/// <param name="type">one of the statically configured qualifierTypes registered with the Service Broker; the qualifier type is used to check type compatibility between function and qualifier in grants</param>
/// <param name="name">A semantically meaningful string describing the purpose of the qualifier</param>
/// <param name="parentQualifierID">the ID of a previously created Qualifier to serve as the parent of the Qualifier being added; the parentID locates the new Qualifier in the hierarchy; additional parents may be added by the AddQualifier-Parent() method</param>
/// <returns>the ID of the new qualifier if it is successfully created, null otherwise</returns>
public static int AddQualifier( int qualifierReferenceID, int type, string name, int parentQualifierID )
{
Qualifier q = new Qualifier();
q.qualifierReferenceID = qualifierReferenceID;
q.qualifierType = type;
q.qualifierName = name;
bool qualifierReferenceIDValid = false;
int qualifierID = -1;
ProcessAgentDB db = new ProcessAgentDB();
ProcessAgent agent = null;
//need to check whether the qualifierReferenceID for a particular qualifierType
//actually exists before it is added to the table
switch (type)
{
// LabServerfo
// Replace with case for all processAgent types an use exits for the combination of ID & type
case Qualifier.labServerQualifierTypeID:
{
agent = db.GetProcessAgent(qualifierReferenceID);
if(agent != null && ((agent.type.Equals(ProcessAgentType.BATCH_LAB_SERVER))
||(agent.type.Equals(ProcessAgentType.LAB_SERVER)))){
qualifierReferenceIDValid = true;
}
break;
}
//LabClient
case Qualifier.serviceBrokerQualifierTypeID:
{
agent = db.GetProcessAgent(qualifierReferenceID);
if (agent != null && ((agent.type.Equals(ProcessAgentType.SERVICE_BROKER))
||(agent.type.Equals(ProcessAgentType.BATCH_SERVICE_BROKER))
|| (agent.type.Equals(ProcessAgentType.REMOTE_SERVICE_BROKER))))
{
qualifierReferenceIDValid = true;
}
break;
}
case Qualifier.labSchedulingQualifierTypeID:
{
agent = db.GetProcessAgent(qualifierReferenceID);
if (agent != null && agent.type.Equals(ProcessAgentType.LAB_SCHEDULING_SERVER))
{
qualifierReferenceIDValid = true;
}
break;
}
case Qualifier.userSchedulingQualifierTypeID:
{
agent = db.GetProcessAgent(qualifierReferenceID);
if (agent != null && agent.type.Equals(ProcessAgentType.SCHEDULING_SERVER))
{
qualifierReferenceIDValid = true;
}
break;
}
case Qualifier.storageServerQualifierTypeID:
{
agent = db.GetProcessAgent(qualifierReferenceID);
if (agent != null && agent.type.Equals(ProcessAgentType.EXPERIMENT_STORAGE_SERVER))
{
qualifierReferenceIDValid = true;
}
break;
}
case Qualifier.labClientQualifierTypeID:
{
int[] labClientIDs = InternalAdminDB.SelectLabClientIDs();
foreach (int labClientID in labClientIDs)
{
if (labClientID == qualifierReferenceID)
{
qualifierReferenceIDValid = true;
break;
}
}
break;
}
//Group
case Qualifier.groupQualifierTypeID:
{
int[] groupIDs = InternalAdminDB.SelectGroupIDs();
foreach(int groupID in groupIDs)
{
if(groupID == qualifierReferenceID)
{
qualifierReferenceIDValid = true;
break;
}
}
break;
}
//Experiment Collection
case Qualifier.experimentCollectionQualifierTypeID:
{
int[] groupIDs = InternalAdminDB.SelectGroupIDs();
foreach(int groupID in groupIDs)
{
if(groupID == qualifierReferenceID)
{
qualifierReferenceIDValid = true;
break;
}
}
break;
}
//Experiment
case Qualifier.experimentQualifierTypeID:
{
Criterion c = new Criterion("experiment_id","=",qualifierReferenceID.ToString());
if (InternalDataDB.SelectExperimentIDs(new Criterion[] { c }).Length > 0)
qualifierReferenceIDValid = true;
break;
}
// Resource Mapping
case Qualifier.resourceMappingQualifierTypeID:
{
BrokerDB brokerDb = new BrokerDB();
ResourceMapping mapping = brokerDb.GetResourceMapping(qualifierReferenceID);
if (mapping != null)
qualifierReferenceIDValid = true;
break;
}
}
if(qualifierReferenceIDValid)
{
try
{
qualifierID = InternalAuthorizationDB.InsertQualifier(q);
if(qualifierID != -1)
{
InternalAuthorizationDB.InsertQualifierHierarchy(qualifierID,parentQualifierID);
}
}
catch(Exception ex)
{
throw;
}
}
return qualifierID;
}