[protobuf] how make an DynamicMessage to known message?

[qtom zheng]

i do like following, and id does success;

ListFieldDescriptor fieldlist = 
 dynamicmsg.getDescriptorForType().getFields();
 Protocal.Builder buildermsg = Protocal.newBuilder();
 for(FieldDescriptor fieldDp : fieldlist){
 buildermsg.setField(fieldDp,  dynamicmsg .getField(fieldDp));
 }
 Protocal head = buildermsg.build();

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[protobuf] how to createmessage by messagename

[qtom zheng]

 public static Message createMessage(String messageName) {
 FileDescriptor dps = Addressbook.getDescriptor();
 System.out.println(dps.getPackage());
 Descriptor dp = dps.findMessageTypeByName(messageName);

...
 return null;

}


by the messageName   I have got the Descriptor dp;
then i want to generated message by Descriptor dp;
but i don't know how to do, any one can tell me?

thanks!!!

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