public ArrayList GetNewReceivedContextMessages()
{
ArrayList lstMessages = new ArrayList();
OdbcDataReader dr = null;
try
{
// Only Recommendation request messages should be the "new" messages in the
// context messages received, all other messages can be handled when received and
// thus should be put in the context messages received table marked as read (not new msg)
StringBuilder strQueryBuilder = new StringBuilder();
strQueryBuilder.Append(" SELECT ");
strQueryBuilder.Append(Constants.CTXMSG_TYPE);
strQueryBuilder.Append(",");
strQueryBuilder.Append(Constants.CTXMSG);
strQueryBuilder.Append(" FROM ");
strQueryBuilder.Append(Constants.CONTEXT_MSGS_RECEIVED_TABLENAME);
strQueryBuilder.Append(" WHERE ");
strQueryBuilder.Append(Constants.NEWMSG);
strQueryBuilder.Append("=");
strQueryBuilder.Append(1);
strQueryBuilder.Append(" ORDER BY ");
strQueryBuilder.Append(Constants.CREATEDATE);
strQueryBuilder.Append(" ASC ");
dr = QueryService.ExecuteReader(this.DBConnect, strQueryBuilder.ToString());
if (dr == null)
{
throw new Exception("Null data reader returned from query");
}
// Scroll thru list returned
while (dr.Read())
{
// Get the context message type
enuContextMsgType type = (enuContextMsgType)enuContextMsgType.Parse(typeof(enuContextMsgType), (string)dr[Constants.CTXMSG_TYPE], true);
string strCtxMsg = (string)dr[Constants.CTXMSG];
ContextMsg ctxMsg = this.RecreateContextMsgFromXml(strCtxMsg, type);
if (ctxMsg != null)
{
lstMessages.Add(ctxMsg);
}
}
}
catch (Exception /*e*/)
{
}
finally
{
if (dr != null)
{
dr.Close();
}
}
return(lstMessages);
}
private ContextMsg RecreateContextMsgFromXml(string strCtxMsg, enuContextMsgType type)
{
if (strCtxMsg == null || strCtxMsg.Length == 0)
{
throw new ArgumentException("Invalid Xml", "strCtxMsg");
}
ContextMsg ctxMsg = null;
try
{
switch (type)
{
case enuContextMsgType.InfoAgentJoined:
case enuContextMsgType.InfoAgentLeft: ctxMsg = InfoAgentCtxMsg.FromXml(strCtxMsg);
break;
case enuContextMsgType.MeetingEnded:
case enuContextMsgType.MeetingResumed:
case enuContextMsgType.MeetingSuspended: ctxMsg = MeetingStatusCtxMsg.FromXml(strCtxMsg);
break;
case enuContextMsgType.RecommendationRequest: ctxMsg = RecommendationRequestCtxMsg.FromXml(strCtxMsg);
break;
case enuContextMsgType.ResourceRecalled:
case enuContextMsgType.ResourceShared: ctxMsg = ResourceCtxMsg.FromXml(strCtxMsg);
break;
}
}
catch (Exception /*e*/)
{
}
return(ctxMsg);
}
public ContextMsg GetContextMsgSent(string strMeetingID, string strCtxMsgID, string strContactID)
{
// Quick error checks
if (strMeetingID == null || strMeetingID.Length == 0)
{
throw new ArgumentException("Invalid meeting ID", "strMeetingID");
}
if (strCtxMsgID == null || strCtxMsgID.Length == 0)
{
throw new ArgumentException("Invalid context message ID", "strCtxMsgID");
}
if (strContactID == null || strContactID.Length == 0)
{
throw new ArgumentException("Invalid contact ID", "strContactID");
}
OdbcDataReader dr = null;
ContextMsg ctxMsg = null;
try
{
StringBuilder strQueryBuilder = new StringBuilder();
strQueryBuilder.Append(" SELECT ");
strQueryBuilder.Append(Constants.CTXMSG);
strQueryBuilder.Append(",");
strQueryBuilder.Append(Constants.CTXMSG_TYPE);
strQueryBuilder.Append(" FROM ");
strQueryBuilder.Append(Constants.CONTEXT_MSGS_SENT_TABLENAME);
strQueryBuilder.Append(" WHERE ");
strQueryBuilder.Append(Constants.MTG_ID);
strQueryBuilder.Append("=");
strQueryBuilder.Append("'" + QueryService.MakeQuotesafe(strMeetingID) + "'");
strQueryBuilder.Append(" AND ");
strQueryBuilder.Append(Constants.CTXMSG_ID);
strQueryBuilder.Append("=");
strQueryBuilder.Append("'" + QueryService.MakeQuotesafe(strCtxMsgID) + "'");
strQueryBuilder.Append(" AND ");
strQueryBuilder.Append(Constants.CONTACT_ID);
strQueryBuilder.Append("=");
strQueryBuilder.Append("'" + QueryService.MakeQuotesafe(strContactID) + "'");
dr = QueryService.ExecuteReader(this.DBConnect, strQueryBuilder.ToString());
if (dr == null)
{
throw new Exception("Null data reader returned from query");
}
// Advance data reader to first record
if (dr.Read())
{
enuContextMsgType type = (enuContextMsgType)enuContextMsgType.Parse(typeof(enuContextMsgType), (string)dr[Constants.CTXMSG_TYPE], true);
string strCtxMsg = (string)dr[Constants.CTXMSG];
ctxMsg = this.RecreateContextMsgFromXml(strCtxMsg, type);
}
}
catch (Exception /*e*/)
{
}
finally
{
if (dr != null)
{
dr.Close();
}
}
return(ctxMsg);
}
