public static UriScheme find(string scheme, bool check)
{
// check cache
lock (m_cache)
{
UriScheme cached = (UriScheme)m_cache[scheme];
if (cached != null)
{
return(cached);
}
}
try
{
// lookup scheme type (avoid building index for common types)
Type t = null;
if (scheme == "fan")
{
t = Sys.FanSchemeType;
}
if (scheme == "file")
{
t = Sys.FileSchemeType;
}
if (t == null)
{
string qname = (string)Env.cur().index("sys.uriScheme." + scheme).first();
if (qname == null)
{
throw UnresolvedErr.make().val;
}
t = Type.find(qname);
}
// allocate instance
UriScheme s = (UriScheme)t.make();
s.m_scheme = scheme;
// add to cache
lock (m_cache)
{
UriScheme cached = (UriScheme)m_cache[scheme];
if (cached != null)
{
return(cached);
}
m_cache[scheme] = s;
}
return(s);
}
catch (UnresolvedErr.Val) {}
catch (System.Exception e) { Err.dumpStack(e); }
if (!check)
{
return(null);
}
throw UnresolvedErr.make("Unknown scheme: " + scheme).val;
}
public static void make_(UriScheme self)
{
}
public static void make_(UriScheme self)
{
}