fs2 | Flexible Storage System - URI-centric Middleware API | Storage library
kandi X-RAY | fs2 Summary
kandi X-RAY | fs2 Summary
there are similar technologies out there such as apache commons virtual file system (vfs) and apache jackrabbit. fs2 distinguishes itself with the following: * storage-agnostic api. client code does not know about the underlying persistence store. for example, a vfs url make look like jar:/a/b, where fs2 is simply fs2:/a/b/. * tdd friendly. use the default fs2 repo (in-memory) while developing for easy testing without minding the complexities of configuration, authentication, and details of databases/filesystem stores. then when the code is ready for prime time, simply flip a switch (ie change "mem" to "mongo"), and objects will be persisted. * lightweight dependencies. the core fs2 api code is lightweight, and for any given deployment scenario, you need only
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Top functions reviewed by kandi - BETA
- Moves a directory from one to another
- Update object metadata
- Generates a URI from a string
- Returns the children of the given node
- Create an array of object metadata snapshots
- Check if a path exists
- Create a new URI that represents the parent of the given uri
- Retrieves a list of all descendants of the given URI
- Returns a list of all descendants of the given URI
- Copy a directory
- Parses the given URI into a set of child nodes
- Sets the headers on this object
- Read the payload to bytes
- Adds a new header
- Provides a map of monomers that can be used by the core fs2
- Append a path element
- Makes sure that the given URI is a valid FS2 URI
- Parses all descendant nodes for the given uri
- Return the list of direct child nodes
- Generate the expiration date
- Convert an object to a byte array
- Creates a metadata snapshot from a bytes stream
- Create object snapshot
- Clone this object
- Initializes the filesystem
- Determine the storage provider based on the given configuration
fs2 Key Features
fs2 Examples and Code Snippets
Community Discussions
Trending Discussions on fs2
QUESTION
I'm working on a code to plot various heatmaps for different meteorological seasons. I want to look at the correlation between different renewable energy resources and demand. I created a list that I called "core_matrix" in which each integer in the list corresponds to a correlation matrix for a different season.
Currently, with the way I've set up my list and programs, I am having trouble with the titles of my subplots. When I use a list of titles in the ax.set_title... line I get an error: raise ValueError(f"Must pass 2-d input. shape={values.shape}") ValueError: Must pass 2-d input. shape=()
Could someone please help me fix this?
Below is a copy of my code:
...ANSWER
Answered 2021-May-12 at 21:07I answered my own question! Though I'm not sure why this fixed the problem or what was wrong initally.
I added
axes=axes.flatten() and I changed the line with the for loop: for i,ax in enumerate(axes):
So now the last part of my code looks like this:
QUESTION
checking into fs2 tutorial, I stumbled upon the following code
...ANSWER
Answered 2021-May-04 at 14:27It's just a convention followed by many libraries: if FooBar[K] is some typeclass, then one usually defines an apply method on the companion object, with a signature that looks somewhat like this:
QUESTION
In the app below I display 2 plots and each time I press the relative actionButton() I get them in full screen. In full screen mode a second actionButton() is displayed to escape the full screen and then it is hidden again. But I cannot make it work for 2 plots instead of one based on this.
ANSWER
Answered 2021-Apr-25 at 12:28Don't define JavaScript functions with the same names. Also don't use duplicated ids in HTML.
QUESTION
I'm trying to build content-addressable file storage. The process is straightforward: take a stream of bytes and write it to a temp location while at the same time calculating a hash of the stream contents, then once the stream is done move the fully written temp object to its final location based on that hash.
Basically like this Conduit example, but with something a little more robust than the filesystem backing it:
...ANSWER
Answered 2021-Apr-03 at 11:08You aren't really missing anything. You can share streams with Topic, e.g.:
QUESTION
I am trying to use a loop to retrieve multiple values which are present in multiple list-nested dictionaries. Unfortunately, it seems that I cannot do so unless I explicitly define which list I want to grab. Since I intend to define hundreds of these devices, I am hoping there is something that scales better.
...ANSWER
Answered 2021-Mar-25 at 00:24Either use map, e.g.
QUESTION
If I run this program from SBT shell, then cancel it, it will keep printing "hello". I have to exit SBT to make it stop. Why is that?
...ANSWER
Answered 2021-Mar-07 at 08:50As it was already mentioned in the comments, your application runs in another thread and it is never terminating since the stream is infinite, so you will have to manually terminate it when a signal like SIGTERM or SIGINT is received by the application (it's emitted whenever you hit ctrl+c to terminate the app).
You could do something like this:
- create an instance of Deferred
- Use it to trigger
interruptWhenafter any of TERM or INT signal is received.
For example:
QUESTION
I want to publish a long list of events into Kafka consuming an fs2.Stream that corresponds to a very big list of DB rows that will eventually cause an Out Of Memotry error if compiled to List.
So, let's say that I have a - very big - list of UUID keys with millions of records:
...ANSWER
Answered 2021-Feb-25 at 14:51Since you don't say what type ChunkOfKeys is, I'm going to assume it's something like Chunk[UUID]
QUESTION
I am trying to read integers from a file to an array, but when I try to read the elements of said array, I get numbers that have little to nothing to do with the numbers in the file.
...ANSWER
Answered 2021-Jan-19 at 16:48Note: int a1[s1], a2[s2]; doesn't comply with the ISO C++ standard. For details, see Why aren't variable-length arrays part of the C++ standard? If you cannot know the length of an array prior to runtime, consider using std::vector.
It is as @user4581301 says, you need to rewind the files, since std::distance() will read the files to the end.
Otherwise you will already be at the end of the files, and you won't read any data into your arrays, which means your arrays will be holding uninitialized memory.
Here is a solution:
QUESTION
Imports and implicits for the following snippets:
...ANSWER
Answered 2021-Jan-17 at 15:38Take a look what you actually defined here:
QUESTION
I have a ConfigLoader which I'm pretty sure works fine. I suspect I am not using application.conf file correctly or perhaps my directory containing the prd.env and dev.env is not in the correct place.
What I expect to happen:
I when I enter sbt run the ConfigLoader reads the application.conf file, sees there are variables within that file. Then checks if prd.env or dev.env depending on which environment it is in and then finally loads the variables. I want this so I can have a different database for dev and prd.
- I have not idea how it would find the Meta directory which contains the prd.env and dev.env (see image).
- I have no idea how it would be able to tell whether if the environment is in dev or prd.
- The goal is to now look towards deploying this app, which is why I need these environment variables to work.
I really appreciate all the help but please try and detail your answers because I am really stuck and short answers often assume I know more than I do. Thanks :)
Tech stack incase relevant:
- HTTP4S,
- CATS,
- Doobie,
- PostgreSQL
application.conf file below:
...ANSWER
Answered 2021-Jan-16 at 16:34When running via sbt run, the environment is set by the shell in which you're running sbt. Defining a dev.env file by itself does nothing.
The mechanism for setting the environment in which sbt is running will vary depending on your shell.
For example if bash is your shell (this is worth trying in other Bourne-compatible shells), prefixing the environment variables with export, e.g.:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install fs2
You can use fs2 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 fs2 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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