/// <summary>
/// Releases any resources held by an open reader.
/// </summary>
/// <param name="writer">The writer of the value.</param>
protected override void CloseWriter( ITextWriter writer )
{
var valueNode = new DataStoreTextValue(this.currentValueNodeName, this.textWriter.ToString());
this.currentValueNodeName = null;
this.textWriter.Clear();
this.AddChild(valueNode);
}
/// <summary>
/// Creates a new empty file, and opens it for writing.
/// </summary>
/// <param name="dataStorePath">The data store path specifying the file to open.</param>
/// <param name="overwriteIfExists"><c>true</c> to overwrite the file in case it already exists (like <see cref="System.IO.FileMode.Create"/>); or <c>false</c> to throw an exception (like <see cref="System.IO.FileMode.CreateNew"/>).</param>
/// <returns>An <see cref="ITextWriter"/> representing the file opened.</returns>
public ITextWriter CreateNewText( string dataStorePath, bool overwriteIfExists )
{
try
{
if( dataStorePath.NullOrEmpty()
|| !DataStore.IsValidPath(dataStorePath) )
throw new ArgumentException("Invalid data store path!").StoreFileLine();
lock( this.syncLock )
{
// create parent
var parentNodes = this.GetOrCreateParentNodes(dataStorePath);
// get or create value
var textValue = this.GetNodeAt(dataStorePath) as IDataStoreTextValue;
if( textValue.NullReference() )
{
textValue = new DataStoreTextValue(DataStore.GetNodeName(dataStorePath), Substring.Empty);
this.SetValueForExistingParent(parentNodes, textValue);
}
return new DataStoreTextValueWriter(textValue);
}
}
catch( Exception ex )
{
ex.Store("dataStorePath", dataStorePath);
ex.Store("overwriteIfExists", overwriteIfExists);
throw;
}
}
