Utils | SomeUtils -

 by   SolveBugs Java Version: Current License: No License

kandi X-RAY | Utils Summary

kandi X-RAY | Utils Summary

Utils is a Java library. Utils has no bugs, it has no vulnerabilities and it has low support. However Utils build file is not available. You can download it from GitHub.


            kandi-support Support

              Utils has a low active ecosystem.
              It has 17 star(s) with 16 fork(s). There are 2 watchers for this library.
              It had no major release in the last 6 months.
              Utils has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Utils is current.

            kandi-Quality Quality

              Utils has 0 bugs and 0 code smells.

            kandi-Security Security

              Utils has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              Utils code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              Utils does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              Utils releases are not available. You will need to build from source code and install.
              Utils has no build file. You will be need to create the build yourself to build the component from source.
              Utils saves you 14 person hours of effort in developing the same functionality from scratch.
              It has 41 lines of code, 3 functions and 1 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed Utils and discovered the below as its top functions. This is intended to give you an instant insight into Utils implemented functionality, and help decide if they suit your requirements.
            • Raise the given text
            Get all kandi verified functions for this library.

            Utils Key Features

            No Key Features are available at this moment for Utils.

            Utils Examples and Code Snippets

            Cleanup the utils .
            javadot img1Lines of Code : 5dot img1License : Permissive (MIT License)
            copy iconCopy
            	void cleanup() {
            		System.out.println("Cleanup the utensils");
            		System.out.println("Switch off the microwave");

            Community Discussions


            How could I mock a connection in apollo with graphQL to test in jest?
            Asked 2021-Jun-15 at 20:47

            I'm trying to somehow test a hooked file that uses an Apollo client connection entry and GraphQL:

            See the error:



            Answered 2021-Jun-15 at 20:47

            I finally found the solution to the problem:

            Source https://stackoverflow.com/questions/67944184


            Django says field does not exist when it does exist
            Asked 2021-Jun-15 at 20:06

            So I created a poll model in my Django app. I'm going thorugh the polling app tutorial posted on the Django website, however, I'm using a remote MySQL database rather than a SQLite database.



            Answered 2021-Jun-15 at 20:06

            I'm thinking the suspect is an unsuccessful migration. Let's undo it and try again

            Source https://stackoverflow.com/questions/67992523


            How to call mirage server before application starts in StencilJS
            Asked 2021-Jun-15 at 14:02

            I am working on a StencilJS project where I have to use MirageJS to make fake API data.

            How to call server before StencilJS application loads. In react we can call makeServer() in the index.ts file, but in the stencil, we don't have such a file.

            How can we call this to start the mirage server, Please can someone suggest the correct way.

            Below is my server.ts file mirage/server.ts



            Answered 2021-Jun-15 at 14:02

            I'm not familiar with MirageJS so I might be off, but can you use globalScript (https://stenciljs.com/docs/config) and then run your Mirage server there?

            Source https://stackoverflow.com/questions/67985711


            Django : bulk upload with confirmation
            Asked 2021-Jun-15 at 13:37

            Yet another question about the style and the good practices. The code, that I will show, works and do the functionality. But I'd like to know is it ok as solution or may be it's just too ugly?

            As the question is a little bit obscure, I will give some points at the end.

            So, the use case.

            I have a site with the items. There is a functionality to add the item by user. Now I'd like a functionality to add several items via a csv-file.

            How should it works?

            1. User go to special upload page.
            2. User choose a csv-file, click upload.
            3. Then he is redirected to the page that show the content of csv-file (as a table).
            4. If it's ok for user, he clicks "yes" (button with "confirm_items_upload" value) and the items from file are added to database (if they are ok).

            I saw already examples for bulk upload for django, and they seem pretty clear. But I don't find an example with an intermediary "verify-confirm" page. So how I did it :

            1. in views.py : view for upload csv-file page


            Answered 2021-May-28 at 09:27

            a) Even if obviously it could be better, is this solution is acceptable or not at all ?

            I think it has some problems you want to address, but the general idea of using the filesystem and storing just filenames can be acceptable, depending on how many users you need to serve and what guarantees regarding data consistency and concurrent accesses you want to make.

            I would consider the uploaded file temporary data that may be lost on system failure. If you want to provide any guarantees of not losing the data, you want to store it in a database instead of on the filesystem.

            b) I pass 'uploaded_file' from one view to another using "request.session" is it a good practice? Is there another way to do it without using GET variables?

            There are up- and downsides to using request.session.

            • attackers can not change the filename and thus retrieve data of other users. This is also the reason why you should not use a GET parameter here: If you used one, attackers could simpy change that parameter and get access to files of other users.
            • users can upload a file, go and do other stuff, and later come back to actually import the file, however:
            • if users end their session, you lose the filename. Also, users can not upload the file on one device, change to another device, and then go on with the import, since the other device will have a different session.

            The last point correlates with the leftover files problem: If you lose your information about which files are still needed, it makes cleaning up harder (although, in theory, you can retrieve which files are still needed from the session store).

            If it is a problem that sessions might end or change because users clear their cookies or change devices, you could consider adding the filename to the UserProfile in the database. This way, it is not bound to sessions.

            c) At first my wish was to avoid to save the csv-file. But I could not figure out how to do it? Reading all the file to request.session seems not a good idea for me. Is there some possibility to upload the file into memory in Django?

            You want to store state. The go-to ways of storing state are the database or a session store. You could load the whole CSVFile and put it into the database as text. Whether this is acceptable depends on your databases ability to handle large, unstructured data. Traditional databases were not originally built for that, however, most of them can handle small binary files pretty well nowadays. A database could give you advantages like ACID guarantees where concurrent writes to the same file on the file system will likely break the file. See this discussion on the dba stackexchange

            Your database likely has documentation on the topic, e.g. there is this page about binary data in postgres.

            d) If I have to use the tmp-file. How should I handle the situation if user abandon upload at the middle (for example, he sees the confirmation page, but does not click "yes" and decide to re-write his file). How to remove the tmp-file?

            Some ideas:

            • Limit the count of uploaded files per user to one by design. Currently, your filename is based on a timestamp. This breaks if two users simultaneously decide to upload a file: They will both get the same timestamp, and the file on disk may be corrupted. If you instead use the user's primary key, this guarantees that you have at most one file per user. If they later upload another file, their old file will be overwritten. If your user count is small enough that you can store one leftover file per user, you don't need additional cleaning. However, if the same user simultaneusly uploads two files, this still breaks.
            • Use a unique identifier, like a UUID, and delete the old stored file whenever the user uploads a new file. This requires you to still have the old filename, so session storage can not be used with this. You will still always have the last file of the user in the filesystem.
            • Use a unique identifier for the filename and set some arbitrary maximum storage duration. Set up a cronjob or similar that regularly goes through the files and deletes all files that have been stored longer than your specified maximum duration. If a user uploads a file, but does not do the actual import soon enough, their data is deleted, and they would have to do the upload again. Here, your code has to handle the case that the file with the stored filename does not exist anymore (and may even be deleted while you are reading the file).

            You probably want to limit your server to one file stored per user so that attackers can not fill your filesystem.

            e) Small additional question : what kind of checks there are in Django about uploaded file? For example, how could I check that the file is at least a text-file? Should I do it?

            You definitely want to set up some maximum file size for the file, as described e.g. here. You could limit the allowed file extensions, but that would only be a usability thing. Attackers could also give you garbage data with any accepted extension.

            Keep in mind: If you only store the csv as text data that you load and parse everytime a certain view is accessed, this can be an easy way for attackers to exhaust your servers, giving them an easy DoS attack.

            Overall, it depends on what guarantees you want to make, how many users you have and how trustworthy they are. If users might be malicious, you want to keep all possible kinds of data extraction and resource exhaustion attacks in mind. The filesystem will not scale out (at least not as easily as a database).

            I know of a similar setup in a project where only a handful of priviliged users are allowed to upload stuff, and we can tolerate deletion of all temporary files on failure. Users will simply have to reupload their files. This works fine.

            Source https://stackoverflow.com/questions/67686096


            Merge map properties to Java POJO
            Asked 2021-Jun-15 at 13:09

            I'd like to implement UPDATE (method PUT) operation for REST api. From front-end application my controller method expects map of values, for example:



            Answered 2021-Jun-15 at 13:09

            You can convert your User object to a Map and work as follow:

            • convert User to a Map original object
            • add all items to from userForm to original
            • convert the original to a User class
            • do what you need with the updated user

            Basically the code is something like that:

            Source https://stackoverflow.com/questions/67986505


            How to properly use Executer In Room Android
            Asked 2021-Jun-15 at 11:44

            So I am relatively new to programming, and I have been working on this task app, where I want to save the data such as task name and more, given by the user. I am trying to accomplish this using Room. Now, initially, when I tried to do it, the app would crash since I was doing everything on the main thread probably. So, after a little research, I came to AsyncTask, but that is outdated. Now finally I have come across the Executer. I created a class for it, but I am a little unsure as to how I can implement it in my app. This is what I did :

            Entity Class :



            Answered 2021-Jun-14 at 12:03

            First make a Repository class and make an instance of your DAO

            Source https://stackoverflow.com/questions/67966494


            UndeclaredThrowableException for custom Exceptions
            Asked 2021-Jun-15 at 10:54

            I'm currently working on a project running a jboss backend server (server-ear:ear exploded artefact) and a java gui (java 11) as frontend.

            The backend contains a java service bean which accesses a database server and throws a custom exception (extends exceptions), if the variable is not found. The GUI catches the custom exceptions with a try and catch block.

            The code is build and run inside of Intellij + Maven.

            If i try to execute the code following arrow pops up at runtime:



            Answered 2021-Jun-15 at 10:54

            So for anyone interested what the problem was:

            Since we are using a custom logger (ServiceLoggingInvocationHandler) which try catched the exceptions of an invoke method, the catched exceptions were already wrapped with an invocation exception and were not the original exceptions. To solve the problem we needed to unwrap the exceptions again before forwarding them.

            Since the logger was only used in debugging mode and only when specified the problem was only occurring for me.

            Source https://stackoverflow.com/questions/67701079


            Gradle Multi-Project Build with JaCoCo Code Coverage fails when using Spring Boot
            Asked 2021-Jun-15 at 08:06


            Answered 2021-Jun-01 at 20:54

            Just do that and you will be fine (all external classes will be excluded):

            Source https://stackoverflow.com/questions/66265413


            How to test SetTimeout function calld in VUE Created HOOK? using Vue utils - JEST
            Asked 2021-Jun-15 at 07:31

            Hello i have alert component which has flag isVisible, this flag is becoming true when component is created, and also in created HOOK i have setTimeout which starts if component receives DESTROY boolean prop



            Answered 2021-Jun-15 at 07:31

            Your need to use fake timers here. After all imports call jest.useFakeTimers(). Then in test after mounting the component call jest.runTimersToTime(2500). And after that you can do your assertions. Test example:

            Source https://stackoverflow.com/questions/67981140


            How to transfer data from old database to new modified database in django?
            Asked 2021-Jun-15 at 07:00

            I have old django project and new django project. I created dump file from database of old django. And also I made changes in tables and created new tables.

            Now I want to load that dump file to my new django app. I am facing errors when I firstly migrate then restore data or firstly restore then migrate.. When I do migration first, it says tables already exist.

            When I do restore first , it says django.db.utils.ProgrammingError: relation "django_content_type" already exists I use migrate --fake error goes but new tables are not created in database.

            I spent 3-4 days but could not succeed.

            Please, help me if you can.

            PS: my database is postgresql



            Answered 2021-Jun-15 at 07:00

            This is not straightforward and will need some manual interventions and it depends on what do you want to do in the future

            • If the tables that already exist in the database have a stable design and won't be changed or you can do the changes manually using SQL statements then set managed = False to the models' meta, this will make Django skip making migrations for those models

            • If you want to keep the power of migration in the new project for all models then this will more complex

              1. Delete all your migrations
              2. You need to make your models equivalent to your database, you can set managed=False for new models like Users
              3. Run python manage.py makemigrations, this will create the structure of the initial database.
              4. Fake running the migrations python manage.py migrate --fake
              5. Dump the records of django_migrations table
              6. Create a new empty migration (with --empty) and add the SQL statements of the django_migrations table to it using migrations.RunSQL()
              7. now fake again so you skip that new migration.
              8. Now you are ready to use migrations as usual.

            When installing new database, you will just need to run python manage.py migrate

            Source https://stackoverflow.com/questions/67980803

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install Utils

            You can download it from GitHub.
            You can use Utils like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Utils component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .


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