Using MessageDigest Class to check if a File was changed

Hello,
i want to write an application which times out at a Certain date.
I would like to store this date in a seperate File and each time the apllication starts, it has to check first if the File has been manipulated or Changed.
So, how can I remind what the original message digest is

no idea

Similar Messages

[svn] 3918: apparently I needed to check it that file was being copied in other places! This should fix the build .

Revision: 3918
Author: [email protected]
Date: 2008-10-27 16:52:01 -0700 (Mon, 27 Oct 2008)
Log Message:
apparently I needed to check it that file was being copied in other places! This should fix the build.
Modified Paths:
flex/sdk/branches/3.2.0/build.xml

in the future, buy this, this is what the Pros use:
for drops, accidents, spills, loss, or theft, purchase a TYPE of insurance called "inland marine insurance"
roughly $30 per year for a device(s) with 0 deductible, used same for over 20 years, same insurance the pros use on their portable devices.
very cheap, very useful insurance, most people dont know about same.
http://en.wikipedia.org/wiki/Inland_marine_insurance

Help using scanner class to count chars in file

Hi all, I am learning Java right now and ran into a problem. I need to use the Scanner class to accurately count the number of chars in a file including the line feed chars 10&13.
This what I have and it currently reports a 201 byte file as having 194 chars:
     File file = new File(plainFile);
     Scanner inputFile = new Scanner(file);
     numberOfChars = 0;
     String line;
     //count characters in file
     while (inputFile.hasNextLine())
          line = inputFile.nextLine();
          numberOfChars += line.length();
I know there are other ways using BufferedReader, etc but I have to use Scanner class to do this.
Thanks in advance!

raichle wrote:
Wow guys, thanks for the help! I've got a RTFMWell, what's wrong to have a look at the API docs for the Scanner class?
and directions that go against the specs I said.Is that so strange to suggest a better option? What if I ask a carpenter "how do I build a table with a my stapler?". Should I give the man an attitude if he tells me I'd better use a saw and hammer?
I'm also aware that it "eats" those chars and obviously looking for a way around that.
I've looked through the java docs, but as I said, I'm new to this and they're difficult to understand. The class I am auditing req's that this be done using Scanner, but I don't see why you demand an explanation.
Can anybody give me some constructive help?Get lost?

Please help to find out whether a file was changed

Dear all,
I have a directory with different files, each file can be changed, how can I trigger the changes in a file and promt the user to update the document.
Something like out sync.
I think it could be a thred, which check the size of the file each five seconds for example. But I have seen programms, which did it immediately, as the used a hook or something like that, without any delay.
What is the common approach in java for this case?
Thanks in advance.

If I will use this method, should I put it in thread?
Or there is a better method to check for changes?Using multithreading or not has nothing to do with "checking whether a file has been modified." You need to break down your problem into small, independent pieces.
* You want to know if a file has been modified. We briefly discussed that.
* You want to perform some task every five seconds. This has NOTHING to do with the above. You perform a periodic task using java.util.Timer and TimerTask.
Since those two things are completely independent of each other, get each one working on its own, without regard for the other. THEN, and only then, combine them into "check for file modification every 5 seconds."

Quicktime File Was Changed From MPEG-4 to nothing?

Hey folks,
So I did a couple interviews this past week, and the recording's files seemed to have been somehow modified, and lost the bulk of the recordings.
Here's the file info now:
So it says the file was modified last night, which doesn't make sense because I wasn't on the computer then. And now the size of the file is tiny compared to what it should be.
Does anyone know if there's a way to revert the file to what it was before? Thanks!

And 12:57 PM is the middle of the day (I.e., 57 minutes after high noon.)

How different Web Services can use a class which parses an XML file

I am using RAD6.1 for developing and deploying web services.As I am using 15 web Services which uses a common class which is used to parse an XML file.As this XML file should be parsed only once and should be used by all the web services.I have made this common class as Singleton but it works as singleton for only one webservice and for other web service again it is parsing the xml file.I want to parse this xml file only once and used by all the web services.In my case tis file is parsed 15 times for 15 web services, but it should be parse donly once and used by all 15 services.Please give me the solution.
Thanks and Regards
Sayeeduzzaman

Hello,
the 15 Webservices should have a static attribute which contains the xml:
private static String xml;
then initialise the xml like this:
if (xml == null)
xml = parseIt();
else
//do nothing, XML already initialised!
}

When a user emails a form using a button, the spaces in the file name change to %20. How can I keep the spaces?

The button is using javascript. I know I could use underscores and hyphens, but spaces would be best. All I see is how you can't use spaces in URLs, but this is a file name, so I don't understand why it converts it to %20.

You cannot. the "%20" indicates the hexadecimal (base 16) character number for a space.

My file was changed from psd to "5 file" and won't open

Hi,
I just spent 2+ hours woking on a difficult mask, saving as I worked.
I left for dinner and closed down photoshop.
When I returned I couldn't open my file. This message appeared: could not complete your request because it is not the right kind of document
The file is no longer a psd is a "5 file".
Any suggestions to what happened to my file and how can I get ps to open it?
Thanks,
Alison

AlisonKaMail wrote:
Hi,
I just spent 2+ hours woking on a difficult mask, saving as I worked.
I left for dinner and closed down photoshop.
When I returned I couldn't open my file. This message appeared: could not complete your request because it is not the right kind of document
The file is no longer a psd is a "5 file".
Any suggestions to what happened to my file and how can I get ps to open it?
Thanks,
Alison
It sounds like you have Windows set to hide the extension of common file types, which means that a photoshop file called Pix03.psd will show up in Windows Explorer and in file open/save dialogs as Pix03 with the file type Photoshop file. This is not desirable because it means you don't know what your files are actually named. It also makes it harder to fix situations like this.
I would strongly suggest that you open Windows Explorer (My Computer icon, or WindowsStart+E), then go to Tools > Folder Options > View and UNcheck "Hide extensions for known file types."
Once you've done that, you will see your file names as Pix03.psd (the ".psd" is the "extension" that you need to see). In Windows Explorer, or a File Open dialog with the criteria set to All Files (*.*), find the file you are having trouble with. It will have a .5 extension, like Pix03.5. Click on it once, wait a second, and click again. This will let you rename it. All that you need to change is the extension, so click at the end, backspace over the "5" and replace it with "psd". That should make your photoshop file openable in Photoshop again.

Add jar files and use those classes at the runtime

Hi All,
I need to add some jar files at the runtime depends on which the user selects where the jar file is located and i need to import those classes in other class for some functionalities . I could add jar files by using the URLClassLoader and Class.forName("myjar.myclassname") is also succeeded and i have no clue how to use those classes with in the jar file as i couldn't import those classes also in the source because the jar files are being added at the runtime(This leads to class not found exception at the compile time).
I had found a complicated way of using those classes after being added at the run time as below.
   Class clazz = Class.forName(myClass);
            final Method method = clazz.getDeclaredMethod(requiredMethod, new Class[]{URL.class});
            final Object returned = method.invoke(clazz.newInstance(), new Object[]{request}); but, its really pain to use in this way in all the places.
Does any of you have simpler suggestions on how to achieve this?
Thanks,
Venky.

Thanks jschell. Yes, you are right. I had found that using reflection API is the only way to load classes at the run time. But according to our application using reflection makes the application little complex, so while start of the application or during other modifications, i am overwriting my jar file to the latest one using FileChannel class as below
      FileChannel ic = new FileInputStream("new.jar").getChannel();
      FileChannel oc = new FileOutputStream("old.jar").getChannel();
      ic.transferTo(0, ic.size(), oc);
      ic.close();
      oc.close();After this code is executed, our application totally uses the new jar file.It is little fast than using reflection. Is this a good idea?

Avoiding attributes when using transform class

Hi,
One more help pls!!!!!
When I use transform class and create an XML file, it creates with attributes for the nodes.
For exapmle,
<MessageOwner type="type" name="name">
How do I avoid this type and name attributes?????
Thanx and Regards,
Gayathri.

create a XSL that will not output the attibutes.

Need Help to locate a file on a FTP server using MediaLocator class

Hi Friends,
This is Venkat. Iam currently working on a Multimedia J2EE web project. Iam working on a requirement to
show Thumbnail view for uploaded media. For this i have downloaded a standalone code from the following site.
http://www.exactfutures.com/index02.htm.
This code converts frames of a media files to jpg images which i can use them to show as Thumbnails.
The code takes file name which is present in project folder as parameter. But in my web project iam using a FTP server to store my media files.
The above code uses Java Media Framework along with another API Fobs4JMF. The media file name is passed to MediaLocator class constructor which is located in the project folder. Iam talking about a standalone application here.
But my project is a J2EE web application.
Now my problem is that, how can i refer a file which is located on a external FTP server and pass it to MediaLocator or some other class.
Say the ftp file URL is mms://wm.testuser.net/12365741/testvideo.wmv
Guys hope you are clear abt my problem. Please help me ASAP.
Below is the part of code
     * Constructor
     public vid2jpg(String path) {
          MediaLocator ml;
          String args = path;
          if ((ml = new MediaLocator(args)) == null) {
               System.out.println("Cannot build media locator from: " + args);
          if (!open(ml)) {
               System.out.println("Failed to open media source");
     * Given a MediaLocator, create a processor and start
     private boolean open(MediaLocator ml) {
          System.out.println("Create processor for: " + ml);
          try {
               p = Manager.createProcessor(ml);
          } catch (Exception e) {
               System.out.println("Failed to create a processor from the given media source: " + e);
               return false;
          p.addControllerListener(this);
          // Put the Processor into configured state.
          p.configure();
          if (!waitForState(p.Configured)) {
               System.out.println("Failed to configure the processor.");
               return false;
          // Get the raw output from the Processor.
          p.setContentDescriptor(new ContentDescriptor(ContentDescriptor.RAW));
Thanks in Advance for your time.
Venkat
Edited by: VenkataGuru on Jul 23, 2008 5:30 PM

Hi Mani,
Below is code that ran successfully on a cRIO-9002. It looks much the same as yours, please double-check the formatting of your string controls. If things still do not work, let's look at the cRIO more closely.
Message Edited by Pie56694 on 06-30-2008 09:45 AM
Attachments:
FTPDELE3.jpg ‏28 KB
FTPDELE.jpg ‏24 KB
FTPDELE2.jpg ‏18 KB

(Cisco Historical Reporting / HRC ) All available connections to database server are in use by other client machines. Please try again later and check the log file for error 5054

Hi All,
I am getting an error message "All available connections to database server are in use by other client machines. Please try again later and check the log file for error 5054" when trying to log into HRC (This user has the reporting capabilities) . I checked the log files this is what i found out
The log file stated that there were ongoing connections of HRC with the CCX (I am sure there isn't any active login to HRC)
|| When you tried to login the following error was being displayed because the maximum number of connections were reached for the server . We can see that a total number of 5 connections have been configured . ||
1: 6/20/2014 9:13:49 AM %CHC-LOG_SUBFAC-3-UNK:Current number of connections (5) from historical Clients/Scheduler to 'CRA_DATABASE' database exceeded the maximum number of possible connections (5).Check with your administrator about changing this limit on server (wfengine.properties), however this might impact server performance.
|| Below we can see all 5 connections being used up . ||
2: 6/20/2014 9:13:49 AM %CHC-LOG_SUBFAC-3-UNK:[DB Connections From Clients (count=5)]|[(#1) 'username'='uccxhrc','hostname'='3SK5FS1.ucsfmedicalcenter.org']|[(#2) 'username'='uccxhrc','hostname'='PFS-HHXDGX1.ucsfmedicalcenter.org']|[(#3) 'username'='uccxhrc','hostname'='PFS-HHXDGX1.ucsfmedicalcenter.org']|[(#4) 'username'='uccxhrc','hostname'='PFS-HHXDGX1.ucsfmedicalcenter.org']|[(#5) 'username'='uccxhrc','hostname'='47BMMM1.ucsfmedicalcenter.org']
|| Once the maximum number of connection was reached it threw an error . ||
3: 6/20/2014 9:13:49 AM %CHC-LOG_SUBFAC-3-UNK:Number of max connection to 'CRA_DATABASE' database was reached! Connection could not be established.
4: 6/20/2014 9:13:49 AM %CHC-LOG_SUBFAC-3-UNK:Database connection to 'CRA_DATABASE' failed due to (All available connections to database server are in use by other client machines. Please try again later and check the log file for error 5054.)
Current exact UCCX Version 9.0.2.11001-24
Current CUCM Version 8.6.2.23900-10
Business impact Not Critical
Exact error message All available connections to database server are in use by other client machines. Please try again later and check the log file for error 5054
What is the OS version of the PC you are running and is it physical machine or virtual machine that is running the HRC client ..
OS Version Windows 7 Home Premium 64 bit and it’s a physical machine.
. The Max DB Connections for Report Client Sessions is set to 5 for each servers (There are two servers). The no of HR Sessions is set to 10.
I wanted to know if there is a way to find the HRC sessions active now and terminate the one or more or all of that sessions from the server end ?

We have had this "PRX5" problem with Exchange 2013 since the RTM version. We recently applied CU3, and it did not correct the problem. We have seen this problem on every Exchange 2013 we manage. They are all installations where all roles
are installed on the same Windows server, and in our case, they are all Windows virtual machines using Windows 2012 Hyper-V.
We have tried all the "this fixed it for me" solutions regarding DNS, network cards, host file entries and so forth. None of those "solutions" made any difference whatsoever. The occurrence of the temporary error PRX5 seems totally random.
About 2 out of 20 incoming mail test by Microsoft Connectivity Analyzer fail with this PRX5 error.
Most people don't ever notice the issue because remote mail servers retry the connection later. However, telephone voice mail systems that forward voice message files to email, or other such applications such as your scanner, often don't retry and
simply fail. Our phone system actually disables all further attempts to send voice mail to a particular user if the PRX5 error is returned when the email is sent by the phone system.
Is Microsoft totally oblivious to this problem?
PRX5 is a serious issue that needs an Exchange team resolution, or at least an acknowledgement that the problem actually does exist and has negative consequences for proper mail flow.
JSB

I'm using itools 2013 1115 beta and I'm using iTunes-10-6-3-25 before i was using iTunes 5-1-1 but my itools cannot transfer file to my iPhone it gives this message (unable to ascertain compatibility iTunes.) check out..... my iPhone 4 (16GB) has the lat

I'm using itools 2013 1115 beta
and I'm using iTunes-10-6-3-25
before i was using iTunes 5-1-1
and i was using iTools 2012
but my itools cannot transfer file to my iPhone it gives this message (unable to ascertain compatibility iTunes.) check out.....
my iPhone 4 (16GB) has the latest version 7.1.1
can you please tell me how to transfer files from my pc to my iPhone?

Not in a Public forum
If you have access th Beta then you should be in the Developer Forum and posting there not here

Error Message When Using a Class Files to Control Navigation

This is my first attempt at using a class file in a flash project. My intent is to keep all of my navigation elements in class file called "Navigation". However, I keep getting an error message when I publish.
I am using a button to go back to the main screen and I gave that button the instance name of "bnt_home". I have also linked that button in the library to the class "Navigation".
Here is the code:
package
    import flash.display.SimpleButton;
    public class Navigation extends SimpleButton
        public function Navigation()
            bnt_home.addEventListener(MouseEvent.MOUSE_DOWN, goNavigation);
        private function goNavigation(event:MouseEvent):void
            gotoAndPlay(1,"Main");

When I changed the code I got error (1046: Type was not found or was not a compile-time constant: MouseEvent).
package
    import flash.display.SimpleButton;
    public class Navigation extends SimpleButton
        public function Navigation()
            this.addEventListener(MouseEvent.MOUSE_DOWN, goNavigation);
        private function goNavigation(event:MouseEvent):void
            root.gotoAndPlay(1,"Main");

Using FileIOInteractionSpec Class For Moving File using File Adapter

Hi All,
I am tring to use FileIOInteractionSpec class to move a file from one location to another. The problem is that I am not able to override its properties from BPEL, here is how the FileAdapter.jca file looks like which moves the file from one location to another:
<adapter-config name="MoveFileService" adapter="File Adapter" wsdlLocation="MoveFileService.wsdl" xmlns="http://platform.integration.oracle/blocks/adapter/fw/metadata">
<connection-factory location="eis/FileAdapter"/>
<endpoint-interaction portType="MoveFile_ptt" operation="MoveFile">
<interaction-spec className="oracle.tip.adapter.file.outbound.FileReadInteractionSpec">
<property name="DeleteFile" value="true"/>
<property name="PhysicalDirectory" value="C:\FileRead"/>
<property name="FileName" value="dummy.txt"/>
</interaction-spec>
</endpoint-interaction>
*<endpoint-interaction portType="MoveFile_ptt" operation="Move">*
*<interaction-spec className="oracle.tip.adapter.file.outbound.FileIoInteractionSpec">*
*<property name="Type" value="MOVE"/>*
*<property name="SourcePhysicalDirectory" value="C:\FileRead"/>*
*<property name="SourceFileName" value="dummy.txt"/>*
*<property name="TargetPhysicalDirectory" value="C:\FileRead2"/>*
*<property name="TargetFileName" value="dummyCopy.txt"/>*
*</interaction-spec>*
*</endpoint-interaction>*
</adapter-config>
In the above code, I have hard-coded the values, and it works fine like that.
However, when I try to override these values by defining properies in BPEL invoke's tag, the values are getting passed as null.
Here is the invoke tag code, tried the following 2 combinations:
<invoke name="InvokeFileMove"
inputVariable="InvokeFileMove_MoveFile_InputVariable"
partnerLink="MoveFileService" portType="ns1:MoveFile_ptt"
operation="Move" bpelx:invokeAsDetail="no">
<bpelx:inputProperty name="jca.file.SourcePhysicalDirectory" value="C:\FileRead"/>
<bpelx:inputProperty name="jca.file.SourceFileName" value="dummy.txt"/>
<bpelx:inputProperty name="jca.file.TargetPhysicalDirectory" value="C:\FileRead2"/>
<bpelx:inputProperty name="jca.file.TargetFileName" value="dummyCopy.txt"/>
</invoke>
And
<invoke name="InvokeFileMove"
inputVariable="InvokeFileMove_MoveFile_InputVariable"
partnerLink="MoveFileService" portType="ns1:MoveFile_ptt"
operation="Move" bpelx:invokeAsDetail="no">
<bpelx:inputProperty name="SourcePhysicalDirectory" value="C:\FileRead"/>
<bpelx:inputProperty name="SourceFileName" value="dummy.txt"/>
<bpelx:inputProperty name="TargetPhysicalDirectory" value="C:\FileRead2"/>
<bpelx:inputProperty name="TargetFileName" value="dummyCopy.txt"/>
</invoke>
These four properties are not visible in Invoke -> Properties tab as well.
Could you please suggest how can I override the jca's values for FileIOInteractionSpec class?

I have successfully used this API and it works fine.
Try to use variables which contains values like "dummyCopy.txt" etc.
Here is what I used :
<bpelx:inputProperty name="jca.file.SourceDirectory"
variable="inputDirectory"/>
<bpelx:inputProperty name="jca.file.SourceFileName"
variable="inputFileName"/>
<bpelx:inputProperty name="jca.file.TargetDirectory"
variable="destinationDirectory"/>
<bpelx:inputProperty name="jca.file.TargetFileName"
variable="inputFileName"/>
Pass approppriate values into the above given variables and try.
Hopefully it should work.
Let us know, how it goes !
<Puneet/>

Using MessageDigest Class to check if a File was changed

Similar Messages

Maybe you are looking for