July 12, 2019 Vignesh Sathiyanantham

Recently we faced an issue in our product Nimesa Cloud Data protection, our QA Director raised a bug that Nimesa is listing two networks during Virtual Machine clone but while editing the VM in vSphere web client he was getting only one network. When I checked in the vSphere web client I can see one network as Uplink port group but in the manage object browser two networks are listed and there is no difference between them to identify that as an uplink port group and ignore while listing in the clone after scratching my head and wondered “ But…

July 8, 2019 Vignesh Sathiyanantham

Java 8 has Collectors.joining() and its overloads. It also has String.join.Using a Stream and a Collector Function<String,String> addQuotes = s -> “\”” + s + “\””; String result = listOfStrings.stream() .map(addQuotes) .collect(Collectors.joining(“, “)); String result = listOfStrings.stream() .map(s -> “\”” + s + “\””) .collect(Collectors.joining(“, “)); String result = listOfString.isEmpty() ? “” : “\”” + String.join(“\”, \””, listOfStrings) + “\””; Happy Coding!

May 10, 2018 Vignesh Sathiyanantham

With vSphere 6.7 web services SOAP API  includes the creation date of a Virtual Machine and will be persisted with the life-cycle of the VM itself. You can get it from Virtual Machine -> Config -> createDate. Earlier to 6.7, we can track the VM Creation Time using EventManager. We should create an EventFilterSpec to filter the events by Virtual Machine creation or deployed, Registered or Cloned Events. new String[]{“VmCreatedEvent”, “VmBeingDeployedEvent”, “VmRegisteredEvent”, “VmClonedEvent”} Get Virtual Machine Creation Time earlier to vSphere 6.7 Java https://gist.github.com/asvignesh/fd97f4cbc41ac55e5b289c3424c0f09a vSphere Power CLI https://gist.github.com/asvignesh/327169f8456bbd613eebfad3d9768fa8

April 10, 2018 Vignesh Sathiyanantham

To fetch the querystring parameters in Controller we usually use request().queryString() Map<String, String[]> queryString = request().queryString(); If we have multiple query-string keys and want to use a POJO to use query-string instead of parsing everything in Controller we can use QueryStringBindable If you have take a look in your project you will see just simple parameters as argument ( Path argument ) in your GET method controller, In order to use Java POJO as input for query string i implements QueryStringBindable<T> in my POJO Here is my sample POJO and my controller method https://gist.github.com/asvignesh/911ff1b6dd4b96a5368e9d113a6591d0 Added a entry in routes, GET…

August 8, 2015 Vignesh Sathiyanantham

I’ve been developing an automation scripts to provision and expand VMFS Datastore. Expand not Extent… I increased the storage volume size and need to increase the size of VMFS datastore without affording the downtime Here is the VIjava / YAVI Java code for expanding the datastore   https://gist.github.com/cd02090562b8cf2ee0e3   [amazon_link asins=’B002SSBD8A’ template=’ProductLink’ store=’asvignesh-21′ marketplace=’IN’ link_id=’2f839008-c0c9-11e7-a460-f1aec9ea1733′]

May 28, 2015 Vignesh Sathiyanantham 2Comment

When i was working on a WIX, i encountered some issue in installing the application  (REST based webservice), my service is not started and later identified that the port number which i set in the application is already used by another application To identify whether the port is in use, i used the Socket Class in Java, which is an endpoint for communication between two machines but i used for local machine to validate specified port public Socket(String host, int port) throws UnknownHostException, IOException https://gist.github.com/c830a8f4c94fa17d68a8 if the host is null it will set the host as loopback address