private void readSettingsFrame(
ChannelHandlerContext ctx, ByteBuf payload, Http2FrameListener listener)
throws Http2Exception {
if (flags.ack()) {
listener.onSettingsAckRead(ctx);
} else {
int numSettings = payloadLength / SETTING_ENTRY_LENGTH;
Http2Settings settings = new Http2Settings();
for (int index = 0; index < numSettings; ++index) {
char id = (char) payload.readUnsignedShort();
long value = payload.readUnsignedInt();
try {
settings.put(id, Long.valueOf(value));
} catch (IllegalArgumentException e) {
switch (id) {
case SETTINGS_MAX_FRAME_SIZE:
throw connectionError(FRAME_SIZE_ERROR, e, e.getMessage());
case SETTINGS_INITIAL_WINDOW_SIZE:
throw connectionError(FLOW_CONTROL_ERROR, e, e.getMessage());
default:
throw connectionError(PROTOCOL_ERROR, e, e.getMessage());
}
}
}
listener.onSettingsRead(ctx, settings);
}
}
