How to check if a file is open

I have a file (Test.doc) that is currently opened in my WindowsXP OS.
How can I check from my java code if the file is opened or not? Is there any posibility?

http://forum.java.sun.com/thread.jspa?threadID=5197544&messageID=9781245

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opens it up in MS Excel.
Now a user checks out a CSV file and the same user clicks on the CSV file, the file is opening in notepad! If other users clicks on the same checked out file (checked out by the first user) it opens up in Excel for them. I've tried the 'Edit in Microsoft
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How can I force a checked out CSV file to open in MS Excel?
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1. Highlight one of the images and press cmd+i (or right click and select "Get info")
2. Click the dropdown menu and select Photoshop (you might have to click "Other..." to find it.
3. Then click "Change All" button below.
You're going to have to do this with every different TYPE of image (e.g. jpeg, tiff etc) but once you've covered all the types you won't have the problem again.
Hope this helps!

How can I check if a file is opened?

Hello,
I have a problem:
I want to check if a file is existing or not, and if it exists, I want to check if it is opened.
The following actions should be taken:
1. File exists => no error message, everything's ok
2. File does not exist => NO error message, create the file later
3. File exists but it is opened => notify user (Ok message)
4. path does not exist => notify user (Ok message)
How can I do that? I have problems to check if the file is opened.
This is what I have done until now:
Johannes
LabVIEW 7.1 (!)
Greetings Johannes
Using LabVIEW 7.1 and 2009 recently

The error checking method is probably the best, most efficient, and cleanest way to do this (only one case structure needed). But here is a somewhat more "rube goldberg" way that does do the job thinking somewhat linearly. If the directory doesn't exist, then the file won't exist. If the file doesn't exist, then it can't be open. So first you check if the directory exists, if it does, check if the file exists, if it does check if it's open. Not a fan of these nested case structures really, but it is a way to do it.
Message Edited by for(imstuck) on 10-29-2009 07:56 AM
CLA, LabVIEW Versions 2010-2013
Attachments:
file_stuff.PNG ‏10 KB

How to check Whether the File is in Progress or used by some other resource

Hi All,
I am retrieving a file from the FTP server using Apache commons FTP.
I need to check whether the file is fully retrieved or in progress.
for now i can able to use the file which is partially retrieved. it is not throwing any file sharing exception or i am unable to find whether it is in progress.
How to check whether the file is in progress ? or The file is accessed by some other resource ?
Pls Help me.
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Hi Vamsi,
Explicitly such kind of requirement has not been catered and i dont think you would face a problem because any application that is writing to a file will open the file in the read only mode to any other simultaneous applications so i think your concerns although valid are already taken care off .
In the remote case you still face a problem then as a work around. Tell the FTP administrator to set the property to maximum connections that can be made to ftp as one. I wonder if you have heard of the concept of FTP handle , basically the above workaround is based on that concept itself. This way only one application will be able to write.
The file adapter will wait for its turn and then write the files.
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Edited by: joel trinidade on Jun 26, 2009 11:06 AM

To check whether a file is open or not.

Hi,
I am using proc_listpidspath() to check whether a file is open or not by some application.
It works in Leopard but not in Tiger.
Can anyone suggest some function or solution so that i can check whether a file is open or not in Tiger.
thanks.

PersianKamran wrote:
if i create a file
File f = new File("path");
f.createNewFile();
Now i have created this file.. but i havent wrote any thing to it.. how can i determine that whether this file is empty or not..[Read the fine manual|http://java.sun.com/javase/6/docs/api/java/io/File.html#createNewFile()]
Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist. The check for the existence of the file and the creation of the file if it does not exist are a single operation that is atomic with respect to all other filesystem activities that might affect the file.
Returns:
true if the named file does not exist and was successfully created; false if the named file already exists So if it returns true, then the file is created and empty.
Secondly, once i write some thing to file.. how can erase all the data from file ?deleting it will get erase the file and return you to the state you started from.
Iif you don't want to create a new file, don't use the createNewFile() method and use the new FileOutputStream/close approach rather than the createNewFile()/delete() pair as already described in this thread.

What determines how a PDF or EPS file is opened??????

Hi I was wondering if anyone can tell, what determines how a PDF or EPS is opened in Photoshop.
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I always thought that how the file was created determines the initial settings in which photoshop displays in that little dialogue box. (for example, if I open an illustrator eps file that I created in photoshop, it always prompts the correct settings (300dpi, CMYK) I click open and it works great.
But when I open a PDF in photoshop it always displays the color mode as RGB, not cmyk. Which i find odd, because I know there is no RGB color space in the PDF.
Today something weird happend, I created an Ad in Indesign, every image I am certain was 300 dpi, and the rest are vectors. Exported it to PDF with high resolution settings, but when I opened it up in Photoshop, the settins dialogue box promted it as 72dpi, which again I find odd because I know each image is 300, the rest are vectors, and I know the PDF preset to which I exported it creates high res images.
Does anyone know what determines how a PDF or eps file is opened in Photoshop and why photoshop is rendering a PDF in which I am certain is hi res, to a low res?
Thanks for any help. Kevin

>Hi I was wondering if anyone can tell, what determines how a PDF or
>EPS is opened in Photoshop.
Nothing, really. EPS provides this info openly in its header, but it is not always right, so PS cannot even assume it would be correct to use that info. For PDF it's a different story. PDF is a container format that can contain any number of items in mixed resolutions and colorspaces, hence PS cannot assume anything. Likewise, you can have multiple pages, links, multimedia content, all of which may influence the result upon display or rasterization...
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How to check & unzip zip file using java, I have
ve some files which are pkzip or some other zip I
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How do you have a file automatically open in mail, like a Constant Contact email?

How do you have a file automatically open in mail, like a Constant Contact email?
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JavaScript: How to check if a file exists.

Hello Everybody,
Can you tell me how to check if a file exists using JavaScript and Internet Explorer.
Browsing on this website I could read about the command "f.exists()" and it was necessary to include "java.io.*".
Should I use this same command and should I include the same files? Or are there other files and other commands?
Thanks in advance.

sorry ya. there is no command to check whether a file exists using javascript. The following code says the object name and value. But it can't say whether the file exists in the harddisk or .. Javascript cannot access database and system resources. If the file exists or not can be checked through the application (ASP, CFML, ..) you are using.

How to check whether a file exist in the program folder or not?

Hi guys,
how to check whether a file exist in the program folder or not? Let is say i recieve a file name from user then i want to know if the file is there not and act on that base.
abdul

Look at the class java.io.File and the .exists() method:
http://java.sun.com/j2se/1.4/docs/api/java/io/File.html

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Hi all,
How to know whether a file is opened by its editor or not ? File may be any of the type.

There are platform-dependent commands that tell whether a file (or directory, port etc.) is used by which processes.
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.:                    9299c
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oracle    9299 9298 0 Apr25 pts/0    00:00:00 -bash
[oracle@izsak ~]$ ls -l $fn
-rw-r----- 1 oracle oinstall 111215876 Apr 25 19:05 /opt/oracle/product/AS/10g/R2/opmn/logs/OC4J~ebank~default_island~1
[oracle@izsak ~]$ fuser $fn
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How to check-in multiple files with same name having different revision num

Hi
Can anyone please tell me, how to check-in multiple files with the same name with different revision number using RIDC API.
For eg:
First I will check-in a file(TestFile.txt) into a content server with revision number 1 using RIDC API in ADF application. Then after some time, will modify the same file(TestFile.txt) and check-in again. I tried to check-in same file multiple times, however first time its checking-in correctly into server showing revision as 1, while checking-in same file again, its not giving any errror message, and also its not reflecting in server. Only one file(TestFile.txt) is reflecting in server.
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Regards
Raj
Edited by: 887680 on Mar 6, 2013 10:48 AM

Hi Srinath
Thanks for your response. Its not cloning, its like check-in file first, then check-out the file and do some editing and then again upload the same file with different revision number using RIDC. I got the solution now.
Regards
Raj

How to check a text file is already opened by another process

Hi All,
We are facing a requirement to check a simple text file that has been already opened by some other process using java programming.We are using simple file reading concepts to read the content of those text file
For eg: Let us take sample.txt in any of the system location which is manually opened and we need to check that sample.txt is opened or not using java programming.
If it is not opened by any process then only we should read that file otherwise we shouldn't.
ANY GUIDANCE WILL BE HELPFUL...
Thanks & Regards,
Rumeshbabu

Hi Christian,
Thanks. Our scenario is...
1. We have log files(in.txt) which is scheduled everyday for tracking and the scheduler will be writing the file ,it will be closed by night 11.
2.So in case if we write any java code to access that log file(using io file concept in java) we need access to that log file from our standalone java program only after night 11 0 clock.
3.So we should check a condition whether that log file has been already used by some other process.
Thanks & Regards.
Rumeshbabu

How to check whether a file is present in the UNIX directory of app. server

Hi,
        I am creating files in the UNIX directory in the application server using :
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           OPEN DATASET w_filename FOR OUTPUT IN TEXT MODE.
          LOOP AT t_output1.
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I am unable to check whether a file with the same name exists or not. How to check the duplicate state of the file.

You can use the following fm
RZL_READ_FILE
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How to check if a file is being read by another program?

Hey all,
I just have a few question for a project I am doing:
How do I check if a file is being read by another program?
How do I check how many lines it read?
How do I get Keyboard input from the user when he is using another program other than mine? Ex: Pressing Ctrl-G to take a screenshot.
How can I halt another program from reading a file when it already opened it? Ex: The other program opened a file and began reading. Now it is at line 2 and I want to make it skip 10 lines and contontinue.
Thanks,
Bluelikeu

How do I check if a file is being read by another
program?This is about the only partially sensible question you asked. But the answer is that unless you use some native code, you can't.
How do I check how many lines it read?It doesn't even make sense to ask this question. First of all, what's a "line" anyway? Files are just sequences of bytes. A "line" is only in the interpretation of those bytes, such as if it contains <cr><lf> sequences an application may choose to render the contents of those bytes as logical "lines" of string sequences. Second of all, why the heck would it matter to you how many bytes have already been read by some other process(es)?
How do I get Keyboard input from the user when he is
using another program other than mine? Ex: Pressing
Ctrl-G to take a screenshot.You want to spy on other applications? Shame on you, Mr. Spyware creator.
How can I halt another program from reading a file
when it already opened it? Ex: The other program
opened a file and began reading. Now it is at line 2
and I want to make it skip 10 lines and contontinue.Shame on you Mr. Spyware creator.

How to check if a file is open

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