private void readSettings(Handler handler, int flags, int length, int streamId)
throws IOException {
if (length % 8 != 0) throw ioException("TYPE_SETTINGS length %% 8 != 0: %s", length);
if (streamId != 0) throw ioException("TYPE_SETTINGS streamId != 0");
Settings settings = new Settings();
for (int i = 0; i < length; i += 8) {
int w1 = in.readInt();
int value = in.readInt();
// int r = (w1 & 0xff000000) >>> 24; // Reserved.
int id = w1 & 0xffffff;
settings.set(id, 0, value);
}
handler.settings(false, settings);
}
private void readSettings(Handler handler, int length, byte flags, int streamId)
throws IOException {
if (streamId != 0) throw ioException("TYPE_SETTINGS streamId != 0");
if ((flags & FLAG_ACK) != 0) {
if (length != 0) throw ioException("FRAME_SIZE_ERROR ack frame should be empty!");
handler.ackSettings();
return;
}
if (length % 6 != 0) throw ioException("TYPE_SETTINGS length %% 6 != 0: %s", length);
Settings settings = new Settings();
for (int i = 0; i < length; i += 6) {
short id = source.readShort();
int value = source.readInt();
switch (id) {
case 1: // SETTINGS_HEADER_TABLE_SIZE
break;
case 2: // SETTINGS_ENABLE_PUSH
if (value != 0 && value != 1) {
throw ioException("PROTOCOL_ERROR SETTINGS_ENABLE_PUSH != 0 or 1");
}
break;
case 3: // SETTINGS_MAX_CONCURRENT_STREAMS
id = 4; // Renumbered in draft 10.
break;
case 4: // SETTINGS_INITIAL_WINDOW_SIZE
id = 7; // Renumbered in draft 10.
if (value < 0) {
throw ioException("PROTOCOL_ERROR SETTINGS_INITIAL_WINDOW_SIZE > 2^31 - 1");
}
break;
case 5: // SETTINGS_MAX_FRAME_SIZE
if (value < INITIAL_MAX_FRAME_SIZE || value > 16777215) {
throw ioException("PROTOCOL_ERROR SETTINGS_MAX_FRAME_SIZE: %s", value);
}
break;
case 6: // SETTINGS_MAX_HEADER_LIST_SIZE
break; // Advisory only, so ignored.
default:
throw ioException("PROTOCOL_ERROR invalid settings id: %s", id);
}
settings.set(id, 0, value);
}
handler.settings(false, settings);
if (settings.getHeaderTableSize() >= 0) {
hpackReader.headerTableSizeSetting(settings.getHeaderTableSize());
}
}