public void SaveLedger( Ledger ledger )
{
ledger.ValidateReferentialIntegrity();
// Ensure that identifiers match appropriately before saving.
ValidateIdentifierLinks( ledger );
/*
// TODO: Remove this after testing
ledger.RecurringTransactions.Clear();
RecurringTransaction r = new RecurringTransaction();
r.StartingDate = new DateTime( 2007, 10, 15 );
r.EndingDate = DateTime.MaxValue;
r.Date = new DateTime( 2007, 10, 15 );
r.Amount = 129.69M;
r.Description = "Ameriprise Financial";
r.Memo = "Life insurance payment";
r.LineItems.Add( new LineItemCredit( ledger.GetAccount( "Suntrust" ), r.Amount ) );
r.LineItems.Add( new LineItemDebit( ledger.GetAccount( "Expenses" ), r.Amount ) );
r.AddMonths = 1;
ledger.RecurringTransactions.Add( r );
*/
StreamWriter writer = File.CreateText( filename );
try
{
XmlTextWriter xmlWriter = new XmlTextWriter( writer );
try
{
xmlWriter.WriteStartDocument();
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteStartElement( "Ledger" );
xmlWriter.WriteAttributeString( "xmlns", "http://www.uvteksoftware.com/xsd/UvMoneyLedger.xsd" );
xmlWriter.WriteAttributeString( "Version", "1.2" );
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteElementString( "MergeDate", ledger.MergeDate.ToString() );
xmlWriter.WriteWhitespace( Environment.NewLine );
// Write accounts
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteStartElement( "Accounts" );
xmlWriter.WriteWhitespace( Environment.NewLine );
foreach( Account account in ledger.Accounts )
{
SerializeAccount( xmlWriter, account );
xmlWriter.WriteWhitespace( Environment.NewLine );
}
xmlWriter.WriteEndElement(); // </Accounts>
xmlWriter.WriteWhitespace( Environment.NewLine );
// Write recurring transactions
if( ledger.RecurringTransactions.Count > 0 )
{
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteStartElement( "RecurringTransactions" );
xmlWriter.WriteWhitespace( Environment.NewLine );
foreach( RecurringTransaction retrans in ledger.RecurringTransactions )
{
SerializeRecurringTransaction( xmlWriter, retrans );
xmlWriter.WriteWhitespace( Environment.NewLine );
}
xmlWriter.WriteEndElement(); // </RecurringTransactions>
xmlWriter.WriteWhitespace( Environment.NewLine );
}
// Write transactions
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteStartElement( "Transactions" );
xmlWriter.WriteWhitespace( Environment.NewLine );
foreach( Transaction trans in ledger.Transactions )
{
// Do not serialize auto-generated transactions
if( !( trans is MissingTransaction ) )
{
trans.Validate();
SerializeTransaction( xmlWriter, trans );
xmlWriter.WriteWhitespace( Environment.NewLine );
}
}
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteComment( "Insert new transactions here." );
xmlWriter.WriteWhitespace( Environment.NewLine );
// Write out a transaction template
StringBuilder sb = new StringBuilder();
sb.Append( Environment.NewLine );
sb.Append( "<Transaction>" );
sb.Append( Environment.NewLine );
sb.Append( "<Date></Date>" );
sb.Append( Environment.NewLine );
sb.Append( "<Number></Number>" );
sb.Append( Environment.NewLine );
sb.Append( "<Amount>0.00</Amount>" );
sb.Append( Environment.NewLine );
sb.Append( "<Description>Payee</Description>" );
sb.Append( Environment.NewLine );
sb.Append( "<Memo></Memo>" );
sb.Append( Environment.NewLine );
sb.Append( "<LineItems>" );
sb.Append( Environment.NewLine );
sb.Append( "<Credit Account=\"\" />" );
sb.Append( Environment.NewLine );
sb.Append( "<Debit Account=\"Expenses\" Category=\"\" />" );
sb.Append( Environment.NewLine );
sb.Append( "</LineItems>" );
sb.Append( Environment.NewLine );
sb.Append( "</Transaction>" );
sb.Append( Environment.NewLine );
xmlWriter.WriteComment( sb.ToString() );
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteEndElement(); // </Transactions>
xmlWriter.WriteWhitespace( Environment.NewLine );
OnlineTransactionStorageXml ostorage = new OnlineTransactionStorageXml();
// Write online transactions that are missing from the ledger
if( ledger.MissingTransactions.Count > 0 )
{
xmlWriter.WriteStartElement( "MissingOnlineTransactions" );
xmlWriter.WriteWhitespace( Environment.NewLine );
foreach( OnlineTransaction otrans in ledger.MissingTransactions )
{
ostorage.SerializeTransaction( xmlWriter, otrans );
xmlWriter.WriteWhitespace( Environment.NewLine );
}
xmlWriter.WriteEndElement(); // </MissingOnlineTransactions>
xmlWriter.WriteWhitespace( Environment.NewLine );
}
xmlWriter.WriteEndElement(); // </Ledger>
xmlWriter.WriteWhitespace( Environment.NewLine );
xmlWriter.WriteEndDocument();
}
finally
{
xmlWriter.Close();
}
}
finally
{
writer.Close();
}
}
public Ledger LoadLedger()
{
Ledger ledger = new Ledger();
FileInfo fi = new FileInfo( filename );
if( !fi.Exists ) return ledger;
OnlineTransactionStorageXml ostorage = new OnlineTransactionStorageXml();
Version version = new Version( 1, 0 );
// I'm not precisely sure why I chose to parse the XML manually
// instead of using XmlSerializer.
// I guess I just didn't want to markup my classes with Xml tags.
StreamReader reader = File.OpenText( filename );
try
{
XmlTextReader xmlReader = new XmlTextReader( reader );
try
{
while( xmlReader.Read() )
{
switch( xmlReader.NodeType )
{
case XmlNodeType.Element:
switch( xmlReader.Name )
{
case "MergeDate":
ledger.MergeDate = DateTime.Parse( xmlReader.ReadString() );
break;
case "Ledger":
version = new Version( xmlReader.GetAttribute( "Version" ) );
break;
case "Accounts":
break;
case "Account":
Account account = DeserializeAccount( xmlReader, version );
account.Ledger = ledger;
// Verify that we are not adding any duplicate Ids or Names
Account testAccount = ledger.FindAccount( account.Id );
if( testAccount != null )
throw new ApplicationException( "There is already an account with Id " + account.Id );
testAccount = ledger.FindAccount( account.Name );
if( testAccount != null )
throw new ApplicationException( "There is already an account named " + account.Name );
// Passed validation, add the account
ledger.Accounts.Add( account );
break;
case "Transactions":
break;
case "Transaction":
Transaction trans = DeserializeTransaction( xmlReader, version, ledger );
// Migrate from deprecated versions
trans.Migrate( version );
// Validate the transaction
trans.Validate();
if( trans.Id != 0 )
{
// Ensure no other transactions with the same Id are in the ledger
Transaction testTrans = ledger.GetTransaction( trans.Id );
if( testTrans != null )
throw new ApplicationException( "There is already a transaction with Id " + trans.Id );
}
ledger.AddTransaction( trans );
break;
case "MissingOnlineTransactions":
break;
case "OnlineTransaction":
OnlineTransaction otrans = ostorage.DeserializeTransaction( xmlReader, version );
ledger.MissingTransactions.Add( otrans );
break;
case "RecurringTransactions":
break;
case "RecurringTransaction":
RecurringTransaction rtrans = DeserializeRecurringTransaction( xmlReader, version, ledger );
ledger.RecurringTransactions.Add( rtrans );
break;
}
break;
}
}
}
finally
{
xmlReader.Close();
}
}
finally
{
reader.Close();
}
AssignTransactionIdentifiers( ledger );
AssignLineItemIdentifiers( ledger );
ValidateIdentifierLinks( ledger );
ledger.ValidateReferentialIntegrity();
// Set load date so we can determine if data in memory is stale
ledger.LoadDate = DateTime.Now;
return ledger;
}
