How to run Java samples from VMware SDK on Ubuntu 10.04

There are subtle differences in all Linux platforms and when I got to run VMware SDK Java samples on Ubuntu 10.04 I found there is something that is worth to share in addition to my first post about it.

First of all, there are very convenient “default” packages for JRE and JDK that have openjdk-6-jre and openjdk-6-jdk:

apt-get install default-jre defalt-jdk

Of course that means a different value for JAVAHOME:

export JAVAHOME=/usr/bin/openjdk-6/

Second, in my first post I did not describe how to get and store VMware server certificates.

If you follow the Setup Guild then you have to connect to a VMware server by SSH or use the vClient. But you can get the certificate from the Firefox browser: when connecting to a VMware server and asked to confirm the certificate, there is a button to export it. This allows to save the certificate locally and then add it to the keystore:

keytool -import -file XXX.XX.XX.XX.XX.cer -alias XXX.XX.XX.XX.XX \
-keystore vmware.keystore VMKEYSTORE=~/vmware-certs/vmware.keystore

Also the tofrodos package has different name for the dos2unix utility, it is called fromdos now:

apt-get install tofrodos
cd %SDKHOME%\samples\Axis\java
fromdos *.sh

Unfortunately the axis binaries I still had to download manually.

How to Assign Task Description

In one of comments the following code did not set a task description (shown in vSphere Client in Details column):

LocalizableMessage lm = new LocalizableMessage(); 
lm.setMessage(“Hello World”); 

The problem is in missing key property of the newly created LocalizableMessage: it must be assigned from the task itself.

This is how it’s supposed to be done (Java):

LocalizableMessage lm = new LocalizableMessage();
lm.setMessage(“Hello World”);

This is an example in C# (taskInfo is known value of Vim.TaskInfo type):

LocalizableMessage myDetailMessage = new Vim25Api.LocalizableMessage()
   { key = taskInfo.key, message = "my details" };
connection.Service.SetTaskDescription(taskInfo.task, myDetailMessage);

VMware Host IP Address

VMware host IP address is something of a phantom property: everybody knows it exists and use it all the time, but nobody knows where it is.

Well, this is probably because its location in the model changes depending on the host version and current network configuration.

This is how I get it.

1. For ESX systems, the system IP address is the IP address of the console, so its located at["key"].spec.ip.ipAddress

where “key” is usually the only key in that collection.

2. For ESXi systems, the system IP address is the IP address of the HostVirtualNic class instance that is associated with the Management Network:["key"].spec.ip.ipAddress

where the “key” is the key of vnic that belongs to the management network portgroup.

How to Retrieve Task Info

This is how to retrieve a task info in you have the task MOR:

ObjectContent[] objs =
   connection.ServiceContent.propertyCollector, new PropertyFilterSpec[]
      new PropertyFilterSpec()
          objectSet = new ObjectSpec[]
             { new ObjectSpec() { obj = taskMOR } },
          propSet = new PropertySpec[]
             new PropertySpec()
                all = false, allSpecified = true,
                type = "Task", pathSet = new String[] { "info" }
TaskInfo result = (TaskInfo)objs[0].propSet[0].val;

VMware APIs

Currently there are a few APIs and this post is a short summary of them.

– vSphere Web Services SDK a.k.a. VMware VI API, last version is 4.0, released May 21st, 2009.

This is a SOAP over HTTP/S protocol that exposes everything you can do on a virtual data center: configure resources, manipulate with virtual machines, retrieve events and performance metrics etc. Complex. I work with it every day.

– vCloud API, still in preview version.

RESTful web service that is kind of meta of super API for allocating an collapsing resources of VMware-software based cloud computing implementations.

– VIX API, version 1.8.1

One of the first VMware APIs I got to know. Allows simple manipulation with virtual machines. As I understand was designed for partners making agents for VMware servers console.

– vSphere Guest SDK, now in version 4. Strange, but I have always been thinking it is a brand new API.

If you code an application that for sure will be running on a virtual machine, use this API to make your product aware of it by consuming the hypervisor resource management information.

– CIM SDK (SMASH, SMI-S) latest version is here.

If you don’t know what CIM is, this SDK won’t help you, if you do, then you don’t need anybody to tell you what you use it for.

– Also there are Chargeback, vNetwork, SNMP MIB, VDDK and little more that is of a special interest of a very special kind of people who I doubt ever read this blog.

Good summary document at VMware web site.

How to run Java samples from VMware SDK

VMware SDK a.k.a. vSphere Web Services SDK 4.0 comes with Java and C# samples. This is what it took me to get them running on Ubuntu 8.10.

1. Download the SDK from into a separate directory:

> mkdir vi-sdk-4.0.0-161137

2. Install Java and Axis:

> apt-get install sun-java5-bin sun-java5-demo sun-java5-doc \
sun-java5-fonts sun-java5-jdk sun-java5-jre sun-java5-plugin \
> wget
> tar xzf axis-bin-1_4.tar.gz
> ln -s /home/dmitri/projects/vi-sdk-4.0.0-161137/SDK/ visdk

3. Setup environment variables:

export AXISHOME=~/apps/apache/axis/
export JAVAHOME=~/apps/java/jdk1.5.0_19/
export SDKHOME=~/apps/visdk/
export WBEMHOME=${SDKHOME}samples/Axis/java/lib/wbem.jar
export PATH

4. Build the samples following the Setup Guide

> cd %SDKHOME%\samples\Axis\java
> ./

5. Run the samples:

>./ com.vmware.samples.general.SimpleClient --url \
--username admin --password password

6. Pat yourself on the back.