JsonFormat.java 文件源码

void print(MessageOrBuilder message) throws IOException {
    if (typeConverters.containsKey(message.getDescriptorForType().getFullName()))
    {
        String msg = typeConverters.get(message.getDescriptorForType().getFullName()).convert(message);
        generator.print(msg);
        return;  
    } 

    WellKnownTypePrinter specialPrinter =
      wellKnownTypePrinters.get(message.getDescriptorForType().getFullName());
    if (specialPrinter != null) {
        specialPrinter.print(this, message);
        return;
    }

    print(message, null);
}