public static void handleOutgoingHL7MessageToBroker(string hl7Input,
Communication databaseCommunication,
HL7Broker.Model.Socket socket)
{
Dictionary <int, int> databaseTableRelationDictionary
= new Dictionary <int, int>();
Configuration masterConfig = socket.masterConfiguration;
List <Credential> credentials = masterConfig.credentials;
List <DatabaseTable> databaseTables = masterConfig.databaseTables;
List <DatabaseInstance> databaseInstances = masterConfig.databaseInstances;
List <ColumnSet> columnSets = masterConfig.columnSets;
List <DatabaseTableRelation> relations = masterConfig.databaseTableRelations;
// this identity is used for multiple inserts
int identityNo = -1;
// text
string baseCommandText = BLANK;
string tableName = BLANK;
// these will help build the custom query
List <string> columns = new List <string>();
List <string> columnValues = new List <string>();
// get message
HL7Message hl7Message = socket.getHL7Message();
// get configurations for the database comminucation
DatabaseInstance databaseInstance
= ConfigurationUtility.GetDatabaseInstance(databaseCommunication, databaseInstances);
// credential
Credential credential
= ConfigurationUtility.GetDatabseCredential(databaseInstance, credentials);
// build the connection string
string connectionString = DAOUtility.GetConnectionString(credential,
databaseInstance, true);
// build database query to insert data into tables based on configuration
using (SqlConnection connection = new SqlConnection(connectionString))
{
try
{
List <DatabaseTable> configDatabaseTables
= ConfigurationUtility.GetDatabaseTables(databaseInstance, databaseTables);
// pick up all the tables for the config
configDatabaseTables.ForEach(delegate(DatabaseTable tableConfig)
{
// empty the db value
string dbValue = BLANK;
// reset variables
baseCommandText = BLANK;
// empty the stores
columns.Clear();
columnValues.Clear();
SqlCommand command = new SqlCommand();
// set the database table
DatabaseTable table = tableConfig;
List <ColumnSet> configDatabaseColumns
= ConfigurationUtility.GetColumnSets(table, columnSets);
// set the table name
tableName = table.name;
// for each column, get the column name
configDatabaseColumns.ForEach(delegate(ColumnSet configColumn)
{
// set the column
ColumnSet column = configColumn;
// get the data type to use
SqlDbType sqlDbType = DAOUtility.GetSqlDataType(column.columnDataType);
// if it's 0, there must be some special condition here, such as a primary key or handling a specific data type
if (column.messageGroupInstanceId == ZERO &&
column.columnDataType == INTEGER_TYPE)
{
// if the source table does have a relationship, then we need to get it
if (relations.Count(x => x.sourceDatabaseTableId == table.id) > ZERO)
{
if (column.isPrimaryKey)
{
// do something here
int keyValue = -1;
// get the target table based on the source table
int targetTableId = relations.Find(r => r.sourceDatabaseTableId ==
table.id).targetDatabaseTableId;
// get the identity
databaseTableRelationDictionary.TryGetValue(targetTableId, out keyValue);
// set the keyvalue to the db value
dbValue = keyValue.ToString();
}
else
{
// Throw Error - there is an issue if the column value is of interger type but no
// key is assoicated it it.
}
}
}
// if this isn't bound to a column and it's of type text - then it should ALWAYS be an HL7 Message
else if (column.messageGroupInstanceId == ZERO &&
column.columnDataType == TEXT_TYPE)
{
// apply hl7 message
dbValue = hl7Input;
}
// database column is of current date type, so we set the value to the current date time
else if (column.messageGroupInstanceId == ZERO &&
column.columnDataType == DATE_TYPE)
{
// set the value to the current date time
dbValue = DateTime.Now.ToString();
}
// search for it by hl7 position
else
{
// init a message group instance
MessageGroupInstance messageGroupInstance = new MessageGroupInstance()
{
id = column.messageGroupInstanceId
};
// get the message position for this specific column
List <Configuration> configMessagePoisition
= ConfigurationDAO.GetMessagePosition(messageGroupInstance);
// get the coordinates for the message item
string messageCoordinates = HL7MessageUtility.getItemCoordinates(configMessagePoisition);
// get segment string type
string columnSegment = configMessagePoisition[ZERO_ELEMENT].segmentType.name;
// get the value for the database inside of the value position
string hl7Value = HL7MessageUtility.getValueByPosition(
hl7Message,
HL7MessageUtility.getSegmentType(columnSegment),
messageCoordinates);
// generate the value
dbValue = (!String.IsNullOrEmpty(hl7Value) ? hl7Value : DBNull.Value.ToString());
}
// initialize for each new table
baseCommandText
= DAOUtility.GetBaseQuery(DAOUtility.SERVICE_QUERY_TYPE.INSERT);
// add to columns statement
columns.Add(column.name);
// add to values statement
columnValues.Add(AT_SIGN + column.name);
// set the command string
command.Parameters.Add(AT_SIGN + column.name, sqlDbType);
// set the values
command.Parameters[AT_SIGN + column.name].Value = dbValue;
});
// open the connection
connection.Open();
// grab command text
command.CommandText = DAOUtility.GetStatement(DAOUtility.SERVICE_QUERY_TYPE.INSERT,
baseCommandText,
tableName,
columns,
columnValues);
// make new transaction to allow roll back
SqlTransaction transaction = connection.BeginTransaction();
// initialize the connection
command.Connection = connection;
// initialize the transaction
command.Transaction = transaction;
// handle the database insert for message header instance
handleDatabaseTableCaller(connection,
command,
transaction,
hl7Message,
table,
hl7Input,
socket,
out identityNo);
DatabaseTableRelation databaseTableRelation
= ConfigurationUtility.GetDatabaseRelation(table, relations);
if (databaseTableRelation == null)
{
// override object
databaseTableRelation = new DatabaseTableRelation()
{
id = 0
};
}
// if the "database table has dependencies" - store the relation id w/ the table id
if (databaseTableRelation.id != ZERO)
{
// or in better terms - has a dependency that this ide requires
if (databaseTableRelation.requiresIdentity)
{
// add to the dictionary if it does require depdents
databaseTableRelationDictionary.Add(table.id, identityNo);
}
else
{
// reset if it doesn't need it
identityNo = NEG_ONE;
}
}
});
}
catch (SqlException sqlex)
{
ErrorLogger.LogError(sqlex, "handleOutgoingHL7MessageToBroker()", hl7Input);
connection.Close();
}
}
}