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Re: [om2m-dev] rename to a container instance
Hello Feifei & hua,

1) Hua, what you said is only true when sending a plain text contentInstance representation.

2) It is possible to set a specific contentInstance ID. You should send a contentInstance representation instead of plain text.

Example:
POST 127.0.0.1:8080/om2m/nscl/applications/MY_SENSOR/containers/DATA/contentInstances
<om2m:contentInstance xmlns:om2m="http://uri.etsi.org/m2m" xmlns:xmime="http://www.w3.org/2005/05/xmlmime" om2m:id="SPECIFIC_ID">
    <om2m:content xmime:contentType="application/xml">PG9iaj4KICA8aW50IG5hbWU9ImRhdGEiIHZhbD0iMjciLz4KICA8aW50IG5hbWU9InVuaXQiIHZhbD0iY2Vsc3VzIi8+Cjwvb2JqPgoK</om2m:content>
</om2m:contentInstance>

PS: here, the content should be base-64 encoded.

3) We are using "SecureRandom" library to generate UUID composed of 9 numbers for contentInstance within the same container.
More details here: http://docs.oracle.com/javase/6/docs/api/java/security/SecureRandom.html
Did you noticed the creation of two contentInstances with the same ID ?

Mahdi


Le 11/08/2014 11:30, hua.xu@xxxxxxxxxx a écrit :

Hello, Feifei :

I am afraid that you can not define the name (id) when you send the file. I have tried this, the result is that even if you have specified a ID for this CI, OM2M will ignore it.

I hope this answers your question.

 

 

De : om2m-dev-bounces@xxxxxxxxxxx [mailto:om2m-dev-bounces@xxxxxxxxxxx] De la part de LIU Feifei
Envoyé : lundi 11 août 2014 11:26
À : om2m-dev@xxxxxxxxxxx
Objet : [om2m-dev] rename to a container instance

 

Hello,

 

I have a question of the name of the container instance. The OM2M NSCL seems to give a random name to each container instance, like: CI0652144. That may cause a problem for identifying every file in the same container.

 

I’d like to know if I can give the name of the file when I send it in order to identify every file from the name by a “GET” request. If not, do we have a method to get a file no matter when it was created even if it has a random name?

 

 

Thank you for your answer!

 

 

BRs,

LIU Feifei

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