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The server side part of OpenMRS in-line localization tool should be designed as simple and sophishicated service, which can be easily accessed from client side part via dynamic AJAX requests. It will be built on top of custommessages module API. 



Note! The conception, given below, is true as for saving/exporting and as for committing translations. Basically, committing functionality will come later and currently it is beyond the scope of the project. 


  1. When user (let's say Translator PC #1-1) does any in-line translations on any pages, he can immediately store all outputs, made him so far. In this case, client side component of in-page localization tool will post new changeset to local OpenMRS server instance #1
  2. This server, having corresponding handler, will save new translations into message properties file; 
  3. In case of successfully saving of new changeset, the person, who makes translations, will be notified with corresponding message that says: "Thank you! Your translations have been succesfully saved to local server, but was not committed to the main server yet. If you want to commit them ..."
  4. Then, translator can choose to commit local changes. Local server #1 instance, which receives commit requests, will check the connection with master OpenMRS server instance. If the connection can be established, it will make something like svn diff of message properties files on both local and master servers. After creating the diff, local server #1 will respond this diff in user-friendly format to Translator PC #1-1 client. Client may review it, correct any conflicts and approve commit operation. In fact, local server #1 will send approved diff to master OpenMRS server instance, which will try to apply received changeset. In case of succeed, master sends corresponding aknowledge to local server and person, who made these translations, will be notified with success message.


Technically, the server side of in-page localization tool will add corresponding DWR service into custommessages module. DWR service will be responsible for AJAX requests handling. It will be implemented with using of existing org.openmrs.module.custommessage.service.CustomMessageService service class. To implement the conception explained in previous section this DWR based service should have corresponding method: