I have a problem with my vm on Google cloud.
I try to start a vm in java but i dont know how can I start a vm from an image. I mean how can I set to source image.
my code is:
Instance instance = new Instance();
compute.machineTypes();
String machine = "https://www.googleapis.com/compute/v1/projects/myproject/zones/us-central1-a/machineTypes/g1-small";
instance.setMachineType(machine);
String name = "newinstance";
instance.setName(name);
List<NetworkInterface> networkInterfaces = new ArrayList<NetworkInterface>();
NetworkInterface iface = new NetworkInterface();
iface.setName("eth0");
iface.setNetwork("https://www.googleapis.com/compute/v1/projects/myproject/global/networks/default");
networkInterfaces.add(iface);
instance.setNetworkInterfaces(networkInterfaces);
Disk disk = new Disk();
disk.setSizeGb(10L);
disk.setName("mydisk");
Compute.Disks.Insert insDisk = compute.disks().insert(projectId, zoneName, disk);
insDisk.execute();
AttachedDisk diskToInsert = new AttachedDisk();
diskToInsert.setBoot(true);
diskToInsert.setType("PERSISTENT");
diskToInsert.setMode("READ_WRITE");
diskToInsert.setDeviceName("newinstancedisk");
diskToInsert.setSource("https://www.googleapis.com/compute/v1/projects/myproject/zones/us-central1-a/disks/" + disk.getName());
List<AttachedDisk> listOfDisks = new ArrayList<AttachedDisk>();
listOfDisks.add(diskToInsert);
instance.setDisks(listOfDisks);
Compute.Instances.Insert ins = compute.instances().insert(projectId, zoneName, instance);
Operation op = ins.execute();
System.out.println(op.toPrettyString());
System.out.println(instance.toPrettyString());
You need to use the option 'disks[].initializeParams.sourceImage' where you can provide the full URL to the image used to create the root disk.
Take a look at these links instances, starting an instance in the API and startin an instance from an image and Instances. In the last link you can see the value you can provide for disks[].initializeParams.
Related
I am using smack on the client-side. I tried to search registered users on the client-side because before creating a new user I want to know that the id is registered on server or not if not then create the user either log in the user but ejabberd server crashed with the error. Here are the crash logs of ejabberd server.
Failed to process iq:
#iq{
id = <<"Hh6AJ-28">>,type = set,lang = <<"en">>,
from =
#jid{
user = <<"admin">>,server = <<"faiqkhan-virtualbox">>,
resource = <<"92526029764259513741138">>,luser = <<"admin">>,
lserver = <<"faiqkhan-virtualbox">>,
lresource = <<"92526029764259513741138">>},
to =
#jid{
user = <<>>,server = <<"vjud.faiqkhan-virtualbox">>,resource = <<>>,
luser = <<>>,lserver = <<"vjud.faiqkhan-virtualbox">>,lresource = <<>>},
sub_els =
[#xmlel{
name = <<"query">>,
attrs = [{<<"xmlns">>,<<"jabber:iq:search">>}],
children =
[#xmlel{
name = <<"x">>,
attrs = [{<<"xmlns">>,<<"jabber:x:data">>},{<<"type">>,<<"submit">>}],
children =
[#xmlel{
name = <<"field">>,
attrs = [{<<"var">>,<<"user">>},{<<"type">>,<<"text-single">>}],
children =
[#xmlel{
name = <<"value">>,attrs = [],
children = [{xmlcdata,<<"wasiq#faiqkhan-virtualbox">>}]}]}]}]}],
meta = #{ip => {0,0,0,0,0,65535,49320,11092}}}
exception error: {module_not_loaded,mod_vcard_mnesia,
<<"faiqkhan-virtualbox">>}
in function gen_mod:get_module_opts/2 (src/gen_mod.erl, line 338)
in call from gen_mod:get_module_opt/3 (src/gen_mod.erl, line 318)
in call from mod_vcard_mnesia:filter_fields/3 (src/mod_vcard_mnesia.erl, line 200)
in call from mod_vcard_mnesia:search/4 (src/mod_vcard_mnesia.erl, line 78)
in call from mod_vcard:search_result/4 (src/mod_vcard.erl, line 479)
in call from mod_vcard:process_search/1 (src/mod_vcard.erl, line 264)
in call from gen_iq_handler:process_iq/3 (src/gen_iq_handler.erl, line 131)
in call from gen_iq_handler:process_iq/4 (src/gen_iq_handler.erl, line 109)
I used the following code to get a registered user from the client-side:
InetAddress address = InetAddress.getByName(HOST);
DomainBareJid serviceName = JidCreate.domainBareFrom("faiqkhan-VirtualBox"); XMPPTCPConnectionConfiguration.Builder builder = XMPPTCPConnectionConfiguration.builder();
builder.setPort(PORT);
builder.setSendPresence(true);
builder.setHostAddress(address);
builder.setServiceName(serviceName);
builder.setUsernameAndPassword("admin", "123456");
builder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
XMPPTCPConnection connection = new XMPPTCPConnection(builder.build());
try {
connection.connect();
connection.login("admin", "123456");
Logger.showError("21560-connection created to: " + connection.getHost());
Roster roster = Roster.getInstanceFor(connection);
Set<RosterEntry> entities = roster.getEntries();
UserSearchManager search = new UserSearchManager(connection);
DomainBareJid s = JidCreate.domainBareFrom("vjud.".concat("faiqkhan-VirtualBox"));
Form searchForm = search.getSearchForm(s);
Form answerForm = searchForm.createAnswerForm();
answerForm.setAnswer("user", "wasiq#faiqkhan-virtualbox");
ReportedData data = search.getSearchResults(answerForm, s);
if (data.getRows() != null) {
for (ReportedData.Row row : data.getRows()) {
for (CharSequence value : row.getValues("jid")) {
Log.i("Iteartor values......", " " + value);
}
}
}
} catch (SmackException | IOException | XMPPException | InterruptedException e) {
Logger.showError("21560-error on account creation: " + e.getMessage());
}
Server crashed on ReportedData data = search.getSearchResults(answerForm, s); line of code.
You found a bug in ejabberd:
It was already fixed in 2018 in
https://github.com/processone/ejabberd/commit/1be21126342d503205798605725ba5ceef9de42b
but the bug got reintroduced in 2019 in
https://github.com/processone/ejabberd/commit/a02cff0e780bb735531594c4ece81e8628f79782#diff-71f613241ed580c3e5dad2b4526503f2R12
and I've now applied a temporary fix in
https://github.com/processone/ejabberd/commit/92913389a51ddc564f11e0712b0d82fca8c9aecb
But even if that bug is fixed, the feature you want to use probably doesn't help: a user must set his vCard in order for his account to be provided in vJud search. In other words, vJUD searches in stored vCards, not in registered accounts. If I register an account but don't set a vCard, then vJUD will not find it.
before creating a new user I want to know that the id is registered on server or not
And why don't you simply attempt to register the account first?
On the other hand, if you would like to check in advance if an account is available for registration or not (like some web registration sites do, to allow the user modify the username until one is available), then I think XMPP doesn't provide that possibility for security reasons: it is not allowed to know if an account exists or not.
A solution for that would be to use the check_account ejabberd command
https://docs.ejabberd.im/developer/ejabberd-api/admin-api/#check-account
executing it with some frontend, like ejabberdctl, ReST or XMLRPC
https://docs.ejabberd.im/admin/guide/managing/#ejabberd-commands
$ ejabberdctl check_account user1 localhost
$ ejabberdctl check_account user6666 localhost
Error: false
~ 1
I need to get the co-ordinates of matched image within the actualImage so that I can perform operations on it. However, I tried below two approaches,but both doesn't seem to work:
Approach 1:
Using below, I'm able to find a match but co-ordinates returned are just the width & height of image to be matched(which I already know). I want to get the position of the same within actual image.
BufferedImage actualImg = ImageIO.read(new File("C:/Images/SrcImg.PNG"));
ImageTarget actualTgt = new ImageTarget(actualImg);
BufferedImage searchImg = ImageIO.read(new File("C:/Images/TgtImg.PNG"));
ImageTarget searchTgt = new ImageTarget(searchImg);
ScreenRegion scrReg = new StaticImageScreenRegion(actualTgt.getImage());
ScreenRegion resReg = scrReg.find(searchTgt);
ScreenLocation center = resReg.getCenter();
System.out.println(":getElementFromImage: x_loc,y_loc =["+center.getX()+","+center.getY()+"]");
Approach 2:
In below code I tried with sikulix Finder. However, with this src.hasNext() returned true BUT src.next() threw nullpointer exception.Not sure what is the problem here:
Finder src = new Finder("C:/Images/SrcImg.PNG");
Pattern pat = new Pattern("C:/Images/TgtImg.PNG").similar(0.5);
src.find(pat);
Match m;
while( src.hasNext())
m = src.next();
src.destroy();
java.lang.NullPointerException
at org.sikuli.script.Finder.next(Finder.java:484)
at com.work.ImageFinder.main(ImageFinder.java:38)
I already spent good amount of time to make this work. Any help would be much appreciated.
Thanks!
It works fine after passing the Region to Finder like below:
Finder src = new Finder("C:/Images/SrcImg.PNG", new Region(0,0,<width>,<height>))
Pattern pat = new Pattern("C:/Images/TgtImg.PNG").similar(0.5);
src.find(pat);
Match m;
while( src.hasNext())
m = src.next();
src.destroy();
More details can be found below link:
Is it possible to use Sikuli to assert that images are the same in GUI-less mode?
I need current display resolution. How can i get this? I know about Window.Current.Bounds, but application can worked in windows mode.
what do you mean VisibleBounds is not working on Deskptop?
I tried in my win10 UWP program, it works fine. I can get my desktop resotion like below:
var bounds = ApplicationView.GetForCurrentView().VisibleBounds;
var scaleFactor = DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel;
var size = new Size(bounds.Width * scaleFactor, bounds.Height * scaleFactor);
Besides, if you are using DX in store app, you can create an IDXGIFactory object and use it to enumerate the available adapters. Then call IDXGIOutput::GetDisplayModeList to retrieve an array of DXGI_MODE_DESC structures and the number of elements in the array. Each DXGI_MODE_DESC structure represents a valid display mode for the output. e.g.：
UINT numModes = 0;
DXGI_MODE_DESC* displayModes = NULL;
DXGI_FORMAT format = DXGI_FORMAT_R32G32B32A32_FLOAT;
// Get the number of elements
hr = pOutput->GetDisplayModeList( format, 0, &numModes, NULL);
displayModes = new DXGI_MODE_DESC[numModes];
// Get the list
hr = pOutput->GetDisplayModeList( format, 0, &numModes, displayModes);
Please let me know if you need further information.
I am new to programming and F# is my first language.
Here are the relevant parts of my code:
let internal saveJsonToFile<'t> (someObject:'t) (filePath: string) =
use fileStream = new FileStream(filePath, FileMode.OpenOrCreate)
(new DataContractJsonSerializer(typeof<'t>)).WriteObject(fileStream, someObject)
let dummyFighter1 = { id = 1; name = "Dummy1"; location = "Here"; nationality = "Somalia"; heightInMeters = 2.0; weightInKgs = 220.0; weightClass = "Too fat"}
let dummyFighter2 = { id = 2; name = "Dummy2"; location = "There"; nationality = "Afghanistan"; heightInMeters = 1.8; weightInKgs = 80.0; weightClass = "Just Nice"}
let filePath = #"G:\User\Fighters.json"
saveJsonToFile dummyFighter1 filePath
saveJsonToFile dummyFighter2 filePath
When I run "saveJsonToFile dummyFighter1 filePath", the information is successfully saved. My problem is this: Once I run "saveJsonToFile dummyFighter2 filePath", it immediately replaces all the contents that are already in the file, i.e., all the information about dummyFighter1.
What changes should I make so that information about dummyFighter2 is appended to the file, instead of replacing information about dummyFighter1?
Change the way you open a file setting FileMode.OpenOrCreate to FileMode.Append. Append means "create or append" :
use fileStream = new FileStream(filePath, FileMode.Append)
From MSDN (https://msdn.microsoft.com/fr-fr/library/system.io.filemode%28v=vs.110%29.aspx) :
FileMode.Append opens the file if it exists and seeks to the end of the file, or
creates a new file. This requires FileIOPermissionAccess.Append
permission. FileMode.Append can be used only in conjunction with
FileAccess.Write. Trying to seek to a position before the end of the
file throws an IOException exception, and any attempt to read fails
and throws a NotSupportedException exception.
There seems to be a problem with how the maxHistory argument is implemented.
I roll over multiple times withing the time interval (every minute
here), creating the following files : (maxHistory = 3)
trace.log (active file)
trace-2013-03-13-16.14.0.log.zip
trace-2013-03-13-16.13.0.log.zip
trace-2013-03-13-16.12.2.log.zip
trace-2013-03-13-16.12.1.log.zip
trace-2013-03-13-16.12.0.log.zip
The nex time rollover occurs, the 16.13.0.log.zip file is removed, and
not the oldest ones (12.{0,1,2} as I would have expected. Is this
intended behaviour ?
public static Logger createTimeAndSizeRollingLogger(String fileBase, String maxSize, int maxHistory, String resolutionPattern) {
LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<ILoggingEvent>();
appender.setContext(loggerContext);
appender.setFile(fileBase + ".log");
TimeBasedRollingPolicy<ILoggingEvent> timePolicy = new TimeBasedRollingPolicy<ILoggingEvent>();
timePolicy.setFileNamePattern(fileBase + "_%d{" + resolutionPattern + "}-%i.log.zip");
timePolicy.setContext(loggerContext);
timePolicy.setMaxHistory(maxHistory);
timePolicy.setParent(appender);
appender.setRollingPolicy(timePolicy);
SizeAndTimeBasedFNATP<ILoggingEvent> rollingPolicy = new SizeAndTimeBasedFNATP<ILoggingEvent>();
rollingPolicy.setMaxFileSize(maxSize);
rollingPolicy.setTimeBasedRollingPolicy(timePolicy);
rollingPolicy.setContext(loggerContext);
timePolicy.setTimeBasedFileNamingAndTriggeringPolicy(rollingPolicy);
timePolicy.start();
rollingPolicy.start();
PatternLayoutEncoder encoder = new PatternLayoutEncoder();
encoder.setContext(loggerContext);
encoder.setPattern("%msg%n");
encoder.start();
appender.setEncoder(encoder);
appender.start();
Logger logger = loggerContext.getLogger(fileBase);
logger.setLevel(Level.TRACE);
logger.addAppender(appender);
StatusPrinter.print(loggerContext);
return logger;
}
THis seems to be fixed in the lastest 1.1.0 SNAPSHOT
http://jira.qos.ch/browse/LOGBACK-162
This is a known issue. MaxHistory will not work with SizeAndTimeBasedFNATP.
You can check it here
You will find many people saying that it is solved, but it is not. If you want to fix it you can edit SizeAndTimeBasedFNATP.java which is located inside logback-core. You can see it here . Inside isTriggeringEvent is the place to add the code in my opinion.