/// <summary>The value of the field as a String, or null. If null, the Reader value,
/// binary value, or TokenStream value is used. Exactly one of StringValue(),
/// ReaderValue(), GetBinaryValue(), and TokenStreamValue() must be set.
/// </summary>
public override string StringValue(IState state)
{
Enclosing_Instance.EnsureOpen();
if (internalIsBinary)
{
return(null);
}
if (fieldsData == null)
{
IndexInput localFieldsStream = GetFieldStream(state);
try
{
localFieldsStream.Seek(pointer, state);
if (isCompressed)
{
var b = new byte[toRead];
localFieldsStream.ReadBytes(b, 0, b.Length, state);
fieldsData =
System.Text.Encoding.GetEncoding("UTF-8").GetString(Enclosing_Instance.Uncompress(b));
}
else
{
if (Enclosing_Instance.format >= FieldsWriter.FORMAT_VERSION_UTF8_LENGTH_IN_BYTES)
{
var bytes = new byte[toRead];
localFieldsStream.ReadBytes(bytes, 0, toRead, state);
fieldsData = System.Text.Encoding.GetEncoding("UTF-8").GetString(bytes);
}
else
{
//read in chars b/c we already know the length we need to read
var chars = new char[toRead];
localFieldsStream.ReadChars(chars, 0, toRead, state);
fieldsData = new System.String(chars);
}
}
}
catch (System.IO.IOException e)
{
throw new FieldReaderException(e);
}
}
return((System.String)fieldsData);
}
public override byte[] GetBinaryValue(byte[] result)
{
Enclosing_Instance.EnsureOpen();
if (internalIsBinary)
{
if (fieldsData == null)
{
// Allocate new buffer if result is null or too small
byte[] b;
if (result == null || result.Length < toRead)
{
b = new byte[toRead];
}
else
{
b = result;
}
IndexInput localFieldsStream = GetFieldStream();
// Throw this IOException since IndexReader.document does so anyway, so probably not that big of a change for people
// since they are already handling this exception when getting the document
try
{
localFieldsStream.Seek(pointer);
localFieldsStream.ReadBytes(b, 0, toRead);
fieldsData = isCompressed ? Enclosing_Instance.Uncompress(b) : b;
}
catch (IOException e)
{
throw new FieldReaderException(e);
}
internalbinaryOffset = 0;
internalBinaryLength = toRead;
}
return((byte[])fieldsData);
}
return(null);
}
