Hi Gayan, > Can you please describe how do you achieve this?
I think you are asking that how I implemented a way to wait for API call completion. There are three types of operations in GCE. 1. Global operations [1] 2. Region operations [2] 3. Zone operations [3] Therefore every time we do a API call, one of these operation objects will be created in IaaS side. That operation has an attribute called status. If status is DONE, operation is completed. So I periodically polled that operation object from IaaS in order to check whether the operation has been completed or not. I implemented three methods for this in GCEOperations.java class. a. waitForGlobalOperationCompletion(String operationName) b. waitForRegionOperationCompletion(String operationName) c. waitForZoneOperationCompletion(String operationName) > Once you implement the listening to topology events for configuring the > GCE LB, shall we have a Google hangout for this? I'm happy to have a hangout for this. I think I'll be able to complete that task within this week. I'll let you know once I'm done. [1]. https://cloud.google.com/compute/docs/reference/latest/globalOperations [2]. https://cloud.google.com/compute/docs/reference/latest/regionOperations [3]. https://cloud.google.com/compute/docs/reference/latest/zoneOperations On Tue, Jun 16, 2015 at 11:36 AM, Gayan Gunarathne <gay...@wso2.com> wrote: > > Hi Asanka, > > On Tue, Jun 16, 2015 at 4:27 AM, Asanka Sanjaya Herath <angal...@gmail.com > > wrote: > >> Hi, >> >> In last week I was working on following tasks. >> >> 1. Implementing a way to wait for API call completion >> > > Can you please describe how do you achieve this? > > >> 2. Getting the instance ID(The member ID in IaaS side) and adding the >> instance to target pool >> >> Now I think the basic functionality of the extension is completed. I >> tested it with a sample PHP application which is deployed using Stratos and >> I was able to access the application through the GCE load balancer >> IP(Corresponding forwarding rule IP). >> > > Great.Nice to hear that. > > >> Here I'm listing TO DOs according to my opinion. >> >> 1. Implement the reload() method >> 2. Implement the stop() method >> 3. Adding a firewall rule >> 4. Add validation checks >> 5. Statistics publishing to CEP >> 6. Exception handling >> 7. Testing >> 8. Discuss and implementing a better way to start the load balancer(Stand >> alone mode or in application sign up process). >> 9. Standardize the code >> >> Any comment is highly appreciated. >> >> Github repo: >> >> https://github.com/asankasanjaya/stratos/tree/master/extensions/load-balancer/gce-extension >> >> Good progress so far. Once you implement the listening to topology > events for configuring the GCE LB, shall we have a Google hangout for this? > > > -- >> Thanks, >> Regards, >> ASH >> > > > > -- > > Gayan Gunarathne > Technical Lead, WSO2 Inc. (http://wso2.com) > Committer & PMC Member, Apache Stratos > email : gay...@wso2.com | mobile : +94 766819985 > > > > > > -- Thanks, Regards, ASH
