/// <summary>
/// Helper function to return a property id while making sure it's valid (+ trace)
/// </summary>
public static PropertyID GetPropertyID(IHeaderParser parser, Stream headerStream)
{
Byte propertyID = headerStream.ReadByteThrow();
if (propertyID > (Byte)PropertyID.kDummy)
{
throw new SevenZipException(parser.GetType().Name + $": Unknown property ID = {propertyID}.");
}
Trace.TraceInformation(parser.GetType().Name + $": Property ID = {(PropertyID)propertyID}");
return((PropertyID)propertyID);
}
/// <summary>
/// Helper function to read and ensure a specific PropertyID is next in header stream
/// </summary>
public static void ExpectPropertyID(IHeaderParser parser, Stream headerStream, PropertyID propertyID)
{
if (GetPropertyID(parser, headerStream) != propertyID)
{
throw new SevenZipException(parser.GetType().Name + $": Expected property ID = {propertyID}.");
}
}
/// <summary>
/// Add a header parser.
/// </summary>
/// <param name="parser">Parser to use</param>
/// <param name="name">Header name</param>
/// <param name="shortName">Compact header name; or <see cref="char.MinValue"/> if not specified.</param>
public void AddParser(IHeaderParser parser, string name, char shortName)
{
if (string.IsNullOrEmpty(name))
throw new ArgumentException("name may not be null or empty.", "name");
name = name.ToLower();
shortName = char.ToLower(shortName);
lock (_headerParsers)
{
if (_headerParsers.ContainsKey(name))
_logger.Info("Changing parser '" + name + "' from " +
_headerParsers[name].GetType().FullName + " to " + parser.GetType().FullName);
_headerParsers[name] = parser;
}
lock (_shortNameParsers)
_shortNameParsers[shortName] = parser;
}
/// <summary>
/// Add a header parser.
/// </summary>
/// <param name="parser">Parser to use</param>
/// <param name="name">Header name</param>
/// <param name="shortName">Compact header name; or <see cref="char.MinValue"/> if not specified.</param>
public void AddParser(IHeaderParser parser, string name, char shortName)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("name may not be null or empty.", "name");
}
name = name.ToLower();
shortName = char.ToLower(shortName);
lock (_headerParsers)
{
if (_headerParsers.ContainsKey(name))
{
_logger.Info("Changing parser '" + name + "' from " +
_headerParsers[name].GetType().FullName + " to " + parser.GetType().FullName);
}
_headerParsers[name] = parser;
}
lock (_shortNameParsers)
_shortNameParsers[shortName] = parser;
}