/// <summary>
/// Gets an XmlConfiguration using a elementName, optionally creates a new or loads an existing configuration (.xml) file using the path specified, and optionally adds it to the collection if new
/// </summary>
/// <param name="elementName">The elementName by which this collection will be accessed</param>
/// <param name="createIfNotFound">A flag indicating whether the configuration should be created if it does not exist</param>
/// <param name="path">The path to the configuration</param>
public XmlConfiguration this[string elementName, bool createIfNotFound, bool addToCollectionIfNew, string path]
{
get
{
/// try and find the configuration in the collection
XmlConfiguration configuration = this[elementName];
/// if it's not in the collection
if (configuration == null)
{
/// perhaps it does in the filesystem, if so then read it, and optionally add it to the collection
if (File.Exists(path))
{
try
{
FileStream stream = new FileStream(path, FileMode.Open, FileAccess.Read);
XmlConfigurationReader reader = new XmlConfigurationReader();
configuration = reader.Read(stream);
configuration.Path = path;
stream.Close();
if (addToCollectionIfNew)
{
this.Add(configuration);
}
return(configuration);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
/// apparently it doesnt' exist in the filesystem
if (createIfNotFound)
{
/// so create a new file
configuration = new XmlConfiguration();
configuration.Path = path;
configuration.ElementName = elementName;
/// save the blank config
Directory.CreateDirectory(path);
FileStream stream = new FileStream(path, FileMode.Create, FileAccess.Write);
XmlConfigurationWriter writer = new XmlConfigurationWriter();
writer.Write(configuration, stream, false);
stream.Close();
/// add it to the config if so instructed
if (addToCollectionIfNew)
{
this.Add(configuration);
}
}
}
return(configuration);
}
}
/// <summary>
/// Writes the contents of this configuration to a string in the format of an XmlDocument
/// </summary>
/// <returns></returns>
public string ToXml()
{
MemoryStream stream = new MemoryStream();
XmlConfigurationWriter writer = new XmlConfigurationWriter();
writer.Write(this, stream, true);
string xml = System.Text.Encoding.ASCII.GetString(stream.GetBuffer());
stream.Close();
return(xml);
}
/// <summary>
/// Gets an XmlConfiguration using a elementName, optionally creates a new or loads an existing configuration (.xml) file using the path specified, and optionally adds it to the collection if new
/// </summary>
/// <param name="elementName">The elementName by which this collection will be accessed</param>
/// <param name="createIfNotFound">A flag indicating whether the configuration should be created if it does not exist</param>
/// <param name="path">The path to the configuration</param>
public XmlConfiguration this[string elementName, bool createIfNotFound, bool addToCollectionIfNew, string path]
{
get
{
/// try and find the configuration in the collection
XmlConfiguration configuration = this[elementName];
/// if it's not in the collection
if (configuration == null)
{
/// perhaps it does in the filesystem, if so then read it, and optionally add it to the collection
if (File.Exists(path))
{
try
{
FileStream stream = new FileStream(path, FileMode.Open, FileAccess.Read);
XmlConfigurationReader reader = new XmlConfigurationReader();
configuration = reader.Read(stream);
configuration.Path = path;
stream.Close();
if (addToCollectionIfNew)
this.Add(configuration);
return configuration;
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
/// apparently it doesnt' exist in the filesystem
if (createIfNotFound)
{
/// so create a new file
configuration = new XmlConfiguration();
configuration.Path = path;
configuration.ElementName = elementName;
/// save the blank config
Directory.CreateDirectory(path);
FileStream stream = new FileStream(path, FileMode.Create, FileAccess.Write);
XmlConfigurationWriter writer = new XmlConfigurationWriter();
writer.Write(configuration, stream, false);
stream.Close();
/// add it to the config if so instructed
if (addToCollectionIfNew)
this.Add(configuration);
}
}
return configuration;
}
}
/// <summary>
/// Writes a configuration using the specified encryption engine to the specified path
/// </summary>
/// <param name="encryptionEngine">The encryption engine to use while writing the configuration, null if no encryption is desired</param>
/// <param name="configuration">The confiruration to write</param>
/// <param name="path">The path to write it to</param>
/// <returns></returns>
public static bool WriteConfiguration(FileEncryptionEngine encryptionEngine, XmlConfiguration configuration, string path)
{
Stream stream = null;
_lastException = null;
try
{
if (configuration != null)
{
if (configuration.HasUnpersistedChanges())
{
configuration.AcceptChanges();
stream = (encryptionEngine != null ? encryptionEngine.CreateEncryptorStream(path) : new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None));
XmlConfigurationWriter writer = new XmlConfigurationWriter();
writer.Write(configuration, stream, false);
configuration.SetHasUnpersistedChanges(false);
}
return true;
}
}
catch (Exception ex)
{
Log.WriteLine(ex);
_lastException = ex;
}
finally
{
if (stream != null)
stream.Close();
}
return false;
}
