///Start new transaction of module if it is possible
///<param name="aOID">Module's OID</param>
public BTransactionItem Start(string aOID)
{
if (transactions.Count == transactionsCapacity) throw new Exception ("Maximum running transactions reached!");
// get instance of module
BModuleItem module = modManager[aOID];
if (module == null) throw new Exception("Module with OID " + aOID + " not found.");
// read configuration from module
XmlNode config;
try
{
config = module.GetConfig().GetXmlNode("/beline/conf/module/configuration");
// if this is not Xml element, configuration file is bad
if (config.NodeType != XmlNodeType.Element) throw new Exception();
}
catch (Exception)
{
throw new Exception("Error in configuration file. It does't contain \"/beline/conf/module/configuration\" branch");
}
ArrayList configItems = new ArrayList(config.ChildNodes.Count);
foreach (XmlNode element in config.ChildNodes)
{
// if another child than element "bcfgitem" do not parse him
if (element.NodeType != XmlNodeType.Element || element.LocalName != "bcfgitem") continue;
BValueType hodnota = BValueType.Deserialize(element.FirstChild);
if (hodnota != null) configItems.Add(hodnota);
}
BValueType[] configArray = new BValueType[configItems.Count];
configItems.CopyTo(configArray);
// create transaction
BTransactionItem transaction = new BTransactionItem(module, configArray);
// save transaction to inner ArrayList
transactions.Add(transaction.OID, transaction);
return transaction;
}
// Return array of all transactions
public BTransactionItem[] GetAllTransactions()
{
BTransactionItem[] retval = new BTransactionItem[transactions.Count];
int i=0;
foreach (DictionaryEntry transaction in transactions)
{
retval[i++] = (BTransactionItem)transaction.Value;
}
//transactions.CopyTo(retval, 0);
return retval;
}
