internal String LoadString(int pos)
{
BCLDebug.Assert(_store != null, "ResourceReader is closed!");
_store.BaseStream.Seek(_dataSectionOffset+pos, SeekOrigin.Begin);
String s = null;
int typeIndex = _store.Read7BitEncodedInt();
if (_version == 1) {
if (typeIndex == -1)
return null;
if (FindType(typeIndex) != typeof(String))
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_ResourceNotString_Type", FindType(typeIndex).GetType().FullName));
s = _store.ReadString();
}
else {
ResourceTypeCode typeCode = (ResourceTypeCode) typeIndex;
if (typeCode != ResourceTypeCode.String && typeCode != ResourceTypeCode.Null) {
String typeString;
if (typeCode < ResourceTypeCode.StartOfUserTypes)
typeString = typeCode.ToString();
else
typeString = FindType(typeCode - ResourceTypeCode.StartOfUserTypes).FullName;
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_ResourceNotString_Type", typeString));
}
if (typeCode == ResourceTypeCode.String) // ignore Null
s = _store.ReadString();
}
BCLDebug.Log("RESMGRFILEFORMAT", "LoadString("+pos.ToString("x", CultureInfo.InvariantCulture)+" returned "+(s==null ? "[a null string]" : s));
return s;
}
private object GetObject(string key, bool ignoreCase, bool isString)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (Reader == null || _resCache == null)
{
throw new ObjectDisposedException(null, SR.ObjectDisposed_ResourceSet);
}
object value = null;
ResourceLocator resLocation;
lock (Reader)
{
if (Reader == null)
{
throw new ObjectDisposedException(null, SR.ObjectDisposed_ResourceSet);
}
if (_defaultReader != null)
{
// Find the offset within the data section
int dataPos = -1;
if (_resCache.TryGetValue(key, out resLocation))
{
value = resLocation.Value;
dataPos = resLocation.DataPosition;
}
if (dataPos == -1 && value == null)
{
dataPos = _defaultReader.FindPosForResource(key);
}
if (dataPos != -1 && value == null)
{
Debug.Assert(dataPos >= 0, "data section offset cannot be negative!");
// Normally calling LoadString or LoadObject requires
// taking a lock. Note that in this case, we took a
// lock on the entire RuntimeResourceSet, which is
// sufficient since we never pass this ResourceReader
// to anyone else.
ResourceTypeCode typeCode;
if (isString)
{
value = _defaultReader.LoadString(dataPos);
typeCode = ResourceTypeCode.String;
}
else
{
value = _defaultReader.LoadObject(dataPos, out typeCode);
}
resLocation = new ResourceLocator(dataPos, (ResourceLocator.CanCache(typeCode)) ? value : null);
lock (_resCache)
{
_resCache[key] = resLocation;
}
}
if (value != null || !ignoreCase)
{
return(value); // may be null
}
} // if (_defaultReader != null)
// At this point, we either don't have our default resource reader
// or we haven't found the particular resource we're looking for
// and may have to search for it in a case-insensitive way.
if (!_haveReadFromReader)
{
// If necessary, init our case insensitive hash table.
if (ignoreCase && _caseInsensitiveTable == null)
{
_caseInsensitiveTable = new Dictionary <string, ResourceLocator>(StringComparer.OrdinalIgnoreCase);
}
if (_defaultReader == null)
{
IDictionaryEnumerator en = Reader.GetEnumerator();
while (en.MoveNext())
{
DictionaryEntry entry = en.Entry;
string readKey = (string)entry.Key;
ResourceLocator resLoc = new ResourceLocator(-1, entry.Value);
_resCache.Add(readKey, resLoc);
if (ignoreCase)
{
_caseInsensitiveTable.Add(readKey, resLoc);
}
}
// Only close the reader if it is NOT our default one,
// since we need it around to resolve ResourceLocators.
if (!ignoreCase)
{
Reader.Close();
}
}
else
{
Debug.Assert(ignoreCase, "This should only happen for case-insensitive lookups");
ResourceReader.ResourceEnumerator en = _defaultReader.GetEnumeratorInternal();
while (en.MoveNext())
{
// Note: Always ask for the resource key before the data position.
string currentKey = (string)en.Key;
int dataPos = en.DataPosition;
ResourceLocator resLoc = new ResourceLocator(dataPos, null);
_caseInsensitiveTable.Add(currentKey, resLoc);
}
}
_haveReadFromReader = true;
}
object obj = null;
bool found = false;
bool keyInWrongCase = false;
if (_defaultReader != null)
{
if (_resCache.TryGetValue(key, out resLocation))
{
found = true;
obj = ResolveResourceLocator(resLocation, key, _resCache, keyInWrongCase);
}
}
if (!found && ignoreCase)
{
if (_caseInsensitiveTable.TryGetValue(key, out resLocation))
{
found = true;
keyInWrongCase = true;
obj = ResolveResourceLocator(resLocation, key, _resCache, keyInWrongCase);
}
}
return(obj);
} // lock(Reader)
}
