Re: [libvirt] [libvirt-users] Help needed in simulating libvirt

On 09/10/2013 12:03 PM, Arun Viswanath wrote: > Hi All, > I'm need to simulate libvirt API's say to mock the libvirt API > responses. (Actually I need to simulate qemu API's response). Because of my > project needs I need to write this simulated libvirt server in Java. I > believe the simulated libvirt can be written as java RPC which should > capable to receive the client RPC request calls and by dispatcher we can > dispatch to the simulated java functions. I searched for .x file to be used > for generating server stubs but unfortunately .x files like > "remote_protocol.x", "virnetprotocol.x", "qemu_protocol.x" and > "lxc_monitor_protocol.x" are not containing any procedure for libvirt API's > that exposed. Please let me know which files will have these exposed > procedures and how can I use it in java, Rather than trying to write your own RPC handler, have you considered using the existing libvirt-java bindings and just targetting the test:/// URI connection? This will give you a fairly reliable exposure to the libvirt APIs, without actually needing a working qemu. The .x files implement the driver API; so also does the test driver. Basically, src/libvirt.c is the public API, which then delegates to the appropriate driver based on what URI you connected to; if the URI is remote (as qemu:/// and all other stateful drivers are), then libvirt.so passes it to src/remote/remote_driver.c to be bundled up into RPC calls which mirror the semantics of the public API. If you want to install your own mock driver, it may be easier to build a new URI and implement the same C interface as the test driver (see src/test/test_driver.c) than it is to implement your own RPC parser. > > Also I'm not sure how to implement the ssl layer support for the > libvirt server in java. I need to write a java server in such a way that > python client should capable to create a connection with uri > "qemu+tls://systemip:port?no_tty=1". Also with the created connection > object it should able to call the libvirt API's like getCapabilities, etc. Again, instead of trying to write your own RPC server, I'd instead focus on utilizing the existing test:/// driver as your point of mocked calls. As this is mostly development-related, I've set the reply-to to libvir-list (we can drop libvirt-users from the rest of this thread). -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org