When breaking down a large spring file into smaller config files, we sometimes incorrectly import the same file twice. While it is not a problem most of the times, it becomes a problem when you have namespace handler and autoproxies involved. In many cases there are InstanceAlreadyExistsException's and double proxying. Is there a way that I can force that a file with a name is loaded once and only once. If there is no existing way, could someone point me to a starting place from where I can propose a patch that can do this?
Thanks in advance!
A colleague of mine pointed out that there was something that was proposed in SPR-1142 that does exactly this.
Related
I am wondering if it is possible to accomplish the following, given some context and example.
I have files in "Server\Share\Folder\File##.ext"
Sometimes the "File##.ext" can be "File01.ext" through "File20.ext", and other times it may be "File01.ext" through "File40.ext"
Sometimes there are less of these files, sometimes there are more.
I want a batch file to take the files from "Server\Share\Folder\File##.ext" and move them to "Server\Share\OtherFolder\File##.ext". I know I can accomplish this easily with:
copy /y "Server\Share\Folder\File01.ext" "Server\Share\OtherFolder\File01.ext"
Then just add another line for each extra "File02.ext, File03.ext, etc., but I am wondering if it is possible to make it so that any file that resembles "File##.ext" can be included, so that no matter how many ## I have, it always works without issue.
Thanks in advance for any and all advice!
EDIT
Someone mentioned using Wildcards, but my question with that is - lets say those files are File01.ext through File05.ext, will it match what it finds to the newly moved file? Like will it find File01 from File?? on the source and Make it File01 from File?? at the destination?
You can accomplish this task with a FORloop program in batch-file.
You can also loop through the Commands using : and variable name.
Combining these two would help you get what you want.
We can help you with Ideas and little bit of the coding. But the Efforts must be done by you. So U can learn programming better
I am a novice Go lang programmer,trying to learn Go lang features.I wanted to split a large csv file into multiple files in GO lang, each file containing the header.How do i do this? I have searched everywhere but couldnt get the right solution.Any help in this regard will be greatly appreciated.
Also please suggest me a good book for reference.
Thanking You
Depending on your shell fu this problem might be better suited for common shell utilities but you specifically mentioned go.
Let's think through the problem.
How big is this csv file? Are we talking 100 lines or is it 5G ?
If it's smallish I typically use this:
http://golang.org/pkg/io/ioutil/#ReadFile
However, this package also exists:
http://golang.org/pkg/encoding/csv/
Regardless - let's return to the abstraction of the problem. You have a header (which is the first line) and then the rest of the document.
So what we probably want to do (if ignoring csv for the moment) is to read in our file.
Then we want to split the file body by all the newlines in it.
You can use this to do so:
http://golang.org/pkg/strings/#Split
You didn't mention but do you know how many files you want to split by or would you rather split by the line count or byte count? What's the actual limitation here?
Generally it's not going to be file count but if we pretend it is we simply want to divide our line count by our expected file count to give lines/file.
Now we can take slices of the appropriate size and write the file back out via:
http://golang.org/pkg/io/ioutil/#WriteFile
A trick I use sometime to help think me threw these things is to write down our mission statement.
"I want to split a large csv file into multiple files in go"
Then I start breaking that up into pieces but take the divide/conquer approach - don't try to solve the entire problem in one go - just break it up to where you can think about it.
Also - make gratiutious use of pseudo-code until you can comfortably write the real code itself. Sometimes it helps to just write a short comment inline with how you think the code should flow and then get it down to the smallest portion that you can code and work from there.
By the way - many of the golang.org packages have example links where you can literally run in your browser the example code and cut/paste that to your own local environment.
Also, I know I'll catch some haters with this - but as for books - imo - you are going to learn a lot faster just by trying to get things working rather than reading. Action trumps passivity always. Don't be afraid to fail.
Here is a package that might help. You can set a necessary chunk size in bytes and a file will be split on an appropriate amount of chunks.
Is there posibility to override files form.xhtml and model.xml (and template.xml) without compiling Orbeon sources ? I want to add field to form metedata, and I don't know, is it sufficient to add properly files to resource/orbeon/builder/form in my exploded .war file.
regards
Yes.
(That must have been the shortest answer I got a chance to post here!)
To expand on this a little bit, if you want to override Form Builder's form.xhtml, you can place your version in WEB-INF/resources/forms/orbeon/builder/form/form.xhtml. And of course, if there is any way to avoid this, you might want to consider it, as custom changes make it harder to upgrade, and can become quite a nuisance.
Instead of putting all the i18n resources into a single message file, I want to divide them into several files. Anybody can kindly tell me how can I do that? because the documentation of Play doesn't give me any idea.
Use the Messages Module, really nice for this purpose.
You can't on Play. Anyway, why would you need to do that? Makes harder to find where the keys for I18N are. If it's for "visual" purposes, just use comments (##) to create sections in the file.
I've created a php file called pagebase.php that I'm quite proud of. It contains a class that created the whole html file for me from input such as css links and js links.
In any case, this file is several hundred lines long, as it includes several helper functions such as cleanHTML() that removes all whitespace from the html code then, in layman's terms, makes the source look pritty.
I have decided to use this pagebase in all my projects, particularly in all my internal projects. I also plan to add and expand to the pagebase file quite a lot. So what I'm wondering is if it's possible to set the allow_url_include option to on, but just on this one single file.
If I got my theory right, that would allow me to include() that file from any server and get the pagebase class.
So what I'm wondering is if it's possible to set the allow_url_include option to on, but just on this one single file.
No, as far as I'm aware this is not possible.
What you are planning to do sounds like a bad idea anyway, though. An include that gets loaded over the web on every request is awful for performance.
You should keep local copies of your library, and use a update script (or version control system) to keep versions up to date.
That is a bad practice.
You should put this file along with the project that needs it and locally include() it.
10 years and still no good solutions? Use this first one with allow_url_fopen for any convenient solution for your PHP file to allow the use of the php.ini brackets.
Replace allow_url_fopen in my example with allow_url_include to address the question.
This will surely be stated as a minor problem in future PHP. Especially if things aren't set up right with at least options are enabled globally. And this only works if there are no global php.ini rules.
Number 1 and 0 in code is either on and off.
<?php
echo ini_get('allow_url_fopen');
if (!ini_get('allow_url_fopen')) {
ini_set('allow_url_fopen', '1');
}
echo ini_get('allow_url_fopen');
Your code of use of either fopen() or copy() in between the code. Even some curl_init() might work.
echo ini_get('allow_url_fopen');
if (!ini_get('allow_url_fopen')) {
ini_set('allow_url_fopen', '0');
}
echo ini_get('allow_url_fopen');
}
?>
This also works for several other php.ini rules. I believe that this proof would be a security issue in many PHP codes further into the future. Surely a good thing to monitor in plugins in the further future or now for anti-malware signature. At least use the right global settings from now.