How to deal with time in Java program?

It is very common that when you install a program, there is a bar showing the progress of the installation. My question is how to build such a bar in my Java GUI?
Also, I would like to insert an underlying clock, recording the time spent in running the program, and return the value to the user.
Could anyone tell me how to achieve those? Thanks in advance!

It is very common that when you install a program,
there is a bar showing the progress of the
installation. My question is how to build such a bar
in my Java GUI? JProgressBar. There's a tutorial.
Also, I would like to insert an underlying clock,
recording the time spent in running the program, and
return the value to the user. System.currentTimeMillis()

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Refer this thread :
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Hi
I want to know, how to change system time through java program.
give me a idia with example.
Thanks

There isn't any core Java API for this. Use JNI or call an external process with Runtime.exec().
~

How to deal with time zone while upgrading the database?

Hi,
How to deal with time zone while upgrading the database?
Thanks
Edited by: user12135020 on Jul 4, 2011 3:06 AM

Hello,
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Hi, got the same problem, have stuck for all day on this and yield no progress.
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How to deal with generated programs in eCATT SAPGUI recording?

Hi experts and professionals,
I am trying to automate testing of our solutions by eCATTs and so far i have not been able to find solution for following problem.
Whole test scenario is very simple:
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Create DAP on InfoProvider
Archive InfoProvider
Check InfoProvider data (query, lookup, listcube,...) again
Compare results from step 1. and 4. (must match)
Reload archived data
Check InfoProvider data (query, lookup, listcube,...) again
Compare results from step 1. and 7. (must match)
As you can see, one of the required test steps is to check InfoProvider's data in transaction LISTCUBE.
But transaction LISTCUBE generates its program "name" every time it is executed and
I am struggling to find a way how to deal with these generated programs in eCATT SAPGUI recording.
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Error description from eCATT log:
Screen Check Error: Expected Transaction: LISTCUBE, Actual Transaction: LISTCUBE.
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Expected Screen Number: 1000, Actual Screen Number: 1000.
There Is Probably an Error in SAPGUI recording.
ExceptionClass:CX_ECATT_APL_CAPTURE ExceptionId:SCREEN_CHECK_ERROR
RaisingClass:CL_APL_ECATT_LINE_INTERPRETER Include:CL_APL_ECATT_LINE_INTERPRETER=CM00J Line:443
Is there any way how to avoid program check in eCATT script?
Anything that would help me to find solution will be greatly appreciated.
Best Regards,
Igor

Dear Igor,
Your issue is caused by the "screen check" which eCATT processes here.
In General this screen check is a very usefull activity, since is ensures that only those screens are processed by automation, which initially where recorded. This should ensure as much as possible to invoke only intended activities.
Remember, that the driver of the screen flow is still the automated transaction program ( but not the test tool). So application logic decides which screen is send next.
Using screen check the test tool tries to ensure that menu items and buttons and other activities are only automated when the tool "believes" to work on the intended screen.
For generic test scripts and often in context of generated programs the screen check might hurt a bit.
To overcome this, one might try to make the check dynamic (as Sheetal suggests correctly).
If here the name of program cannot be determined for any reason, one can use another method and do following:
- Change the value of ProcessedScreen-Active to 'R'
This will disable/skip the screen-check for this ProcessedScreen.
Sure the solution includes a certain risk, since not checking the correct screen to appear might lead to automation of actions with not desired impact.
Maybe this can improve your solution.
Kind Regards
Jens

How to deal with java integrity??

Hi everyone,
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asker wrote:
I've been using C++ before
But in Java, TOOOO many keywords Really? C++ has 63 keywords:
asm
auto
bool
break
case
catch
char
class
const
const_cast
continue
default
delete
do
double
dynamic_cast
else
enum
explicit
export
extern
false
float
for
friend
goto
if
inline
int
long
mutable
namespace
new
operator
private
protected
public
register
reinterpret_cast
return
short
signed
sizeof
static
static_cast
struct
switch
template
this
throw
true
try
typedef
typeid
typename
union
unsigned
using
virtual
void
volatile
wchar_t
while   while Java has 52, 2 of which (goto and const) are not used:
abstract
assert
boolean
break
byte
case
catch
char
class
const
continue
continue
default
do
double
else
enum
extends
final
finally
float
for
for
goto
if
implements
import
instanceof
int
interface
long
native
new
package
private
protected
public
return
short
static
strictfp
super
switch
synchronized
this
throw
throws
transient
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void
volatile
while

How to deal with deadlock on wwv_flow_data table when http server times out

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Hello Shmoove,
I saw your reply here and you probably understand the problems the HTTP 100 response may cause.
I am trying to send image that was taken by getSnapshot. The problem is that the server respond with this HTTP 100 message.
I suspect that the reason that my server doesn't recognize the file that I'm sending from J2me is that the "server to client" response to the 100 message comes after the second message of (see what the TCPIP viewer shows down here):
POST /up01/up02.aspx HTTP/1.1
Content-Type: multipart/form-data; boundary=xxxxyyyyzzz
Connection: Keep-Alive
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User-Agent: UNTRUSTED/1.0
Host: szekely.dnsalias.com:80
Transfer-Encoding: chunked
400: Client to Server (126 bytes)
78
--xxxxyyyyzzz
Content-Disposition: form-data; name="pic"; filename="david.jpg"
Content-Type: application/octet-stream
400: Connected to Server
400: Server to Client (112 bytes)
HTTP/1.1 100 Continue
Server: Microsoft-IIS/5.1
Date: Wed, 23 Mar 2005 00:47:02 GMT
X-Powered-By: ASP.NET
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How to deal with credentials for external applications using a Java Client/

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However, I don't know if my approach is good and I would like you to share your experiences or how to deal with this.
Regards

You can use Credential Store Framework to store the credentials securely in the weblogic server instead of hardcoding in the java class.
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- provides an API for storage, retrieval, and maintenance of credentials in different back-end repositories
Check the documentation on CSF API -
http://docs.oracle.com/cd/E29505_01/core.1111/e10043/devcsf.htm
Major Steps -
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Help--How can I open only one java program at one time?

How can I open only one java program(same program) in Windows at one time?

In Java 1.5, you can use the JVM's own monitoring APIs to examine what other JVMs are running on the system, and what applications they're running.
It's general and powerful, but complex. The socket/file/whatever approach is cleaner, and probably more suited to your usage.
Don't bother trying to use the Windows task manager for this sort of thing. You have to write messy native code, and it isn't reliable after all that anyway.

How to deal with visession in IVI-C driver program ?

a ViSession is an identifier that corresponds to a session.
My instrument is a remote internet device . i can call VISA library to implement
communication between labwindows and my remote internet device.In this case , what is meaning of Visession
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ViSession is necessary as part of a larger picture and fills an important role in good architecture. Intrument handles (stored as the ViSession type) are necessary for large projects, which may require commanding multiple instruments.
There is no function to call which can get or set a ViSession value, similar to the way other attributes are set with driver functions. The ViSession intrument handle is created and returned to the application when an instrument is initialized; it represents a connection with one particular instrument.
This allows users to have multiple instruments connected, which can be controlled programmatically with one application. Then, the application can quickly specify which instrument it would like to send a command, just by sending one instrument handle or another.
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Instrument Driver/IVI PSE
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How to deal with OpenCL grey out issue.

First off, I'm not native english speaker.
I have Nvidia GeForce 550 Ti video card, and its support OpenCL v1.1.
I'm also face a "random" OpenCL grey out issue like other people here, but I found the "issue" and how to deal with.
open a command windows (using WinKey + R, and type cmd <enter>)
type "cd C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)" <enter>
type "sniffer_gpu" <enter> -->> to check your GPU has OpenCL in Photoshop?
When GPU is in power-saving mode (core running in 51Mhz, using MSI Afterburner monitor), I running sniffer_gpu, got this report
C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)>sniffer_gpu
Device: 0000000000328D68 has video RAM(MB): 1023
Vendor string:    NVIDIA Corporation
Renderer string: GeForce GTX 550 Ti/PCIe/SSE2
Version string:   3.0.0
OpenGL version as determined by Extensionator...
OpenGL Version 3.0
Has NPOT support: TRUE
Has Framebuffer Object Extension support: TRUE
OpenGL ok
Return code: 1
C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)>
No OpenCL support
Then, I switch GPU back to normal status (core running at 900Mhz)
C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)>sniffer_gpu
Device: 00000000001F8D68 has video RAM(MB): 1023
Vendor string:    NVIDIA Corporation
Renderer string: GeForce GTX 550 Ti/PCIe/SSE2
Version string:   3.0.0
OpenGL version as determined by Extensionator...
OpenGL Version 3.0
Has NPOT support: TRUE
Has Framebuffer Object Extension support: TRUE
OpenGL ok
OpenCL ok, version=1.1 CUDA 4.2.1
Return code: 3
C:\Program Files\Adobe\Adobe Photoshop CS6 (64 Bit)>
OpenCL support !!
Nowadays, most of new GPUs were support power-saving, but when sniffer_gpu running at GPU power-saving state, the OpenCL computing report maybe "time-out", cause the detector "guess" the GPU does not support OpenCL. This is why many people says "OpenCL" sometimes work, sometimes grey-out.
I hope this bug can be fixed, or at least people can understand how to "enable OpenCL everytime when you launch photoshop".
Bye.

Do check the following link
http://blogs.oracle.com/soabpm/2010/01/soa_suite_11g_weblogictransact.html

How to deal with "Error 1001. The specified service already exists" when install a service using installer package?

Hi everybody,
I wrote a "Class Library" project which is a service using Visual Stodio 2008 recently, then tried to use a Visual Studio 2008
Setup Project to install it.
Here is what I did for the "Class Library":
1. Finish the program.cs, Service.cs
2. Add Installer
3. Change the serviceInstaller so that "StartType" to be Aotumatic
4. Change the ServiceProcessInstaller2 so that "Account" to be LocalSystem
5.
6. Click in F5 (Start Debugging)
Here is what I did for the Setup Project:
1. Add the exe file built from the "Class Library" project to the Application Folder
2. On the Custom Action Editor, add the exe file from 1 to Install and Commit
3. Change the property of the project so that "RemovePreviousVersion" to be true
4. Click on F6(Build Solution)
Then I tried to run the msi file from the built of the Setup Project. Because I modified the two projects serveral times, I uninstalled the Class Library using "Control Panel->Add or Remove Programs" before I reinstall. Two things I notived:
1. After unstall, the registry was not cleaned up about the installed program
2. After several rounds install/uninstall, I got "Error 1001. The specified service already exists"
My questions are:
1. How to cleanup the registry when uninstall a program?
2. How to deal with the "Error 1001. The specified service already exists"?
3. Did I do anytbing wrong with the "Class Library" or the "Setup Project"?
Thanks a lot!
Helen

Hi Simon, not a problem!
I spent some more time on this and here are few more notes:
it is called Major Upgrade, when you are installing new version of the product upon a previous one and
MSI supports 2 strategies:
Strategy 1. Install a new version and uninstall previous one. (Install a new version right upon previously installed version (file merging is performed based on dll version number) and the delete previously
installed files)
Strategy 2. Uninstall previous version and install a new one (Delete all previous files and install from scratch new files.)
From the first look it seems that 1st strategy is weird and buggy. But, remember, MSI is great because it's transactional!!! That means that if once some of the phases (Installation, Uninstallation, Rollback, Comit) fails, your machine
will be reverted to the previous state and it'll be still functional.
Let's consider both strategies:
Consider you have installed product_v1.msi and you want to install product_v2.msi.
Strategy 1
1. MSI engine copies files from Product_v1 directory to TEMP directory
2. MSI engine merges files based on the assembly version (between v1 and v2)
3. Once merging is completed successfully it removes files in TEMP (RemoveExistingProducts action triggers it) and you got product_v2 installed, otherwise if it fails MSI engine revert machine to V1 and copies previous files from TEMP.
Strategy 2
1. MSI engine tottaly removes all files from v1.
2. MSI engine installs v2 files and if something goes wrong you cannot revert back, because RemoveExistingProducts allready worked out and MSI doesn't have files to revert machine back
I recommend to everybody to use Strategy 1 and leverage MSI transaction functionality. And you can set this strategies by defining sequence of RemoveExistingProducts action. See more info
here. So, I think it's not even a bug in VS as I said in the upper post it is default recommened behaviour.
AND, you got "Error 1001. The specified service already exists"
because if we follow Strategy 1 MSI engine tries to install Windows Service on top of the existing service and OF COURSE it fails MSI engine (StopServices, DeleteServices actions are executed before actual
installation and they look at ServiceControl table). In order to stop service first and delete them you have to fill ServiceContol table of the MSI (and then StopServices, DeleteServices actions will recognize what to they have to stop
and delete), like this:
*clip*clip*clip*
' see http://msdn.microsoft.com/en-us/library/windows/desktop/aa371634(v=vs.85).aspx for more info
' Update the Service Entry to stop and delete service while uninstalling
query = "INSERT INTO ServiceControl (ServiceControl, Name, Event, Arguments, Wait, Component_) VALUES ('MAD_Service', 'Service name', '160', '', '1', '"
+ componentName + "')"
Set view = database.OpenView(query)
: CheckError
view.Execute : CheckError
' Update the Service Entry to stop and delete service while installing
query = "INSERT INTO ServiceControl (ServiceControl, Name, Event, Arguments, Wait, Component_) VALUES ('MAD2_Service', 'Service name', '10', '', '1', '"
+ componentName + "')"
Set view = database.OpenView(query)
: CheckError
view.Execute : CheckError
*clip*clip*clip*
We can uninstall service first by following Strategy 2, but then we lose transactional support.
So, Simon did I encourage you to change your code a bit?:)
And, btw, if you don't want to change the strategy, please don't rely on SequenceID in MSI table, it can be change, you have to get the at the runtime.
Hope it will help to everybody!
See also more advanced explanation of how MSI works
here.
Truly yours, Marat

How to deal with 0...n or 1...n mappings?

Hi all,
I'm relatively new to BPM. I've already made several processes that are working fine. However, I'm now stuck because, for the life of me, I'm not able to understand how to deal with data mappings of nodes of a cardinality greater than 1...1.
I'm used to dealing with 0...n inputs of Web Services in Webdynpro Java and CAF Application services, using java code... but I just don't get how to deal with these in a BPM data mapping scenario.
Let's say you have a Web Service whose input is a node called "Employee", where you can add n Employee objects, like this:
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      LastName: String
How do you:
1- map a 0...n context node from a Web Dynpro or Web Service output, already containing several employees, into this Employee 0...n WS input node?
2- map a 0...n context node from a Web Dynpro or Web Service output, containing NO employees, into this Employee 0...n WS input node, without getting an error and the BPM crashing because it says the employee element is not found?
Hopefully someone can help me with this, because I'm about to go the way of calling the web service n times, one employee at a time, instead of one time with a Employee object with n registries in it.
Thanks!

Hi Abhijeet,
i think i should have mentioned this earlier. My Employee node is inside another node. So, the actual input structure of the WS is this:
InputValues (1...1)
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      FirstName: String
      LastName: String
This scenario works OK in BPM when mapping a 0..n node using deep copy as Jocelyn explained, but I still doesn't work if I want to pass an empty (not null) Employees array.
If I go to the WS Navigator and run this WS with the following parameters, it runs ok (I get an output message saying no employee was selected, which is how it should work):
InputValues - "Is null" checkbox not activated.
   Employees - "Skip" checkbox not activated
      FirstName - "Skip" checkbox activated
      LastName - "Skip" checkbox activated
However, if instead of activating the checkbox of, say, "FirstName", I enter a "" value, I get an error from the WS saying that's not a vaild first name, which is also how it should work.
In java code, I would just pass an empty InputValues object to the WS, but I'm not sure how to do this in a BPM without it being considered null, and without having to set on of its String-child values to "".
Do you know how to achieve this?

How to deal with the barcode?

i'm developing a file storage system in java, there're two barcode on each file(one is pdf417, the other one is code128) , but now ,there's a problem confused me :
i use the barcode scanner to scan the file and get images of these files from the scanner , but i have no idea how to deal with these images,
i need the barcode information on the images, and i know there're some java components can help me to read the barcode from images , for example : BarcodeReader from Barcode Library, but these components were too expensive for me , is there any other way can solve this problem?

yes, look for a cheaper component...
Or write your own...
Or save up until you can afford the more expensive ones...

How to deal with time in Java program?

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