Store | Kotlin Library for Async Data Loading and Caching | Reactive Programming library
kandi X-RAY | Store Summary
kandi X-RAY | Store Summary
A Store is responsible for managing a particular data request. When you create an implementation of a Store, you provide it with a Fetcher, a function that defines how data will be fetched over network. You can also define how your Store will cache data in-memory and on-disk. Since Store returns your data as a Flow, threading is a breeze! Once a Store is built, it handles the logic around data flow, allowing your views to use the best data source and ensuring that the newest data is always available for later offline use. Store leverages multiple request throttling to prevent excessive calls to the network and disk cache. By utilizing Store, you eliminate the possibility of flooding your network with the same request while adding two layers of caching (memory and disk) as well as ability to add disk as a source of truth where you can modify the disk directly without going through Store (works best with databases that can provide observables sources like Jetpack Room, SQLDelight or Realm).
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Store
Store Key Features
Store Examples and Code Snippets
Lines of Code : 67License : Non-SPDX (Apache License 2.0)
Copydef gather_ops_or_named_saveables(self):
"""Looks up or creates SaveableObjects which don't have cached ops.
Returns:
A tuple of (
existing_restore_ops: list,
named_saveables: dict,
python_positions: list, def put(self, key, vals, indices=None, name=None):
"""Create an op that stores the (key, vals) pair in the staging area.
Incomplete puts are possible, preferably using a dictionary for vals
as the appropriate dtypes and shapes can be inf def as_default(self):
try:
if not self._used_once:
# If an outer eager VariableStore was explicitly created and set by
# the first time this template store was used (even if not at
# constructor time) then pick up th tokens: [
'abc',
'def',
'ghi',
]
...
//send multicast
...
success.responses: [
{
//success response
},
{
error: {
errorInfo: {
code: 'messaging/registration-token-not-registered',
},
},
},
{
//success /**
* @NL80211_BSS_BEACON_IES: binary attribute containing the raw
* information
*/
Сapabilities Information: 0x0431
.... .... .... ...1 = ESS capabilities: Transmitter is an AP
.... .... ..implementation "io.reactivex.rxjava2:rxjava:2.2.8"
testImplementation "org.junit.jupiter:junit-jupiter-api:5.7.0"
testImplementation "org.junit.jupiter:junit-jupiter-params:5.7.0"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.7shell> cat hosts.yml
all:
hosts:
a-address:
type: anycast
read_username: read
read_password: xxxxx
write_username: write
write_password: xxxx
queues:
- queue_name: a-queue1
que$ minikube start
😄 minikube v1.11.0 on Darwin 10.15.5
✨ Using the hyperkit driver based on existing profile
👍 Starting control plane node minikube in cluster minikube
🔄 Restarting existing hyperkit VM for "minikube" ...
🐳 Preparinimport { of, merge, NEVER } from 'rxjs';
import { share, exhaustMap, debounceTime, takeUntil } from 'rxjs/operators';
const firstAfterInactiveFor = (ms) => (source) => {
// Multicast the source since we need to subscribe to it twiINFO [org.apache.activemq.artemis.core.server] AMQ221080: Deploying address STATUS_LOG.V01 supporting [ANYCAST]
INFO [org.apache.activemq.artemis.core.server] AMQ221003: Deploying ANYCAST queue STATUS_LOG.V01 on address STATUS_LOG.V01
INCommunity Discussions
Trending Discussions on Store
QUESTION
I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs
...ANSWER
Answered 2022-Mar-16 at 07:01First, this error message is indeed expected on Jan. 11th, 2022.
See "Improving Git protocol security on GitHub".
January 11, 2022 Final brownout.
This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
This will help clients discover any lingering use of older keys or old URLs.
Second, check your package.json dependencies for any git:// URL, as in this example, fixed in this PR.
As noted by Jörg W Mittag:
For GitHub Actions:There was a 4-month warning.
The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".
Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.
The permanent shutdown is not until March 15th.
As in actions/checkout issue 14, you can add as a first step:
QUESTION
I am trying to do a regular import in Google Colab.
This import worked up until now.
If I try:
ANSWER
Answered 2021-Oct-15 at 21:11Found the problem.
I was installing pandas_profiling, and this package updated pyyaml to version 6.0 which is not compatible with the current way Google Colab imports packages.
So just reverting back to pyyaml version 5.4.1 solved the problem.
For more information check versions of pyyaml here.
See this issue and formal answers in GitHub
##################################################################
For reverting back to pyyaml version 5.4.1 in your code, add the next line at the end of your packages installations:
QUESTION
I am having problems with npx create-react-app involving global installs. My confusion arises because as far as I'm aware the create-react-app package is not installed on my machine.
Some Details:
I start a react project (with typescript template) as I have previously and recently done on this same machine a number of times:
npx create-react-app --template typescript .
I get this prompt from the terminal
Need to install the following packages: create-react-app Ok to proceed? (y)
I press y to confirm it's okay to proceed. (If I press n, the process terminates with the following error: npm ERR! canceled.) The terminal then displays the following message
ANSWER
Answered 2021-Dec-21 at 14:45You can try to locate the installed version by running:
QUESTION
Just today, whenever I run terraform apply, I see an error something like this: Can't configure a value for "lifecycle_rule": its value will be decided automatically based on the result of applying this configuration.
It was working yesterday.
Following is the command I run: terraform init && terraform apply
Following is the list of initialized provider plugins:
...ANSWER
Answered 2022-Feb-15 at 13:49Terraform AWS Provider is upgraded to version 4.0.0 which is published on 10 February 2022.
Major changes in the release include:
- Version 4.0.0 of the AWS Provider introduces significant changes to the aws_s3_bucket resource.
- Version 4.0.0 of the AWS Provider will be the last major version to support EC2-Classic resources as AWS plans to fully retire EC2-Classic Networking. See the AWS News Blog for additional details.
- Version 4.0.0 and 4.x.x versions of the AWS Provider will be the last versions compatible with Terraform 0.12-0.15.
The reason for this change by Terraform is as follows: To help distribute the management of S3 bucket settings via independent resources, various arguments and attributes in the aws_s3_bucket resource have become read-only. Configurations dependent on these arguments should be updated to use the corresponding aws_s3_bucket_* resource. Once updated, new aws_s3_bucket_* resources should be imported into Terraform state.
So, I updated my code accordingly by following the guide here: Terraform AWS Provider Version 4 Upgrade Guide | S3 Bucket Refactor
The new working code looks like this:
QUESTION
We are using command prompt c:\gcloud app deploy app.yaml, but get the following error:
ANSWER
Answered 2022-Jan-06 at 09:24Your setuptools version is likely to be yanked:
https://pypi.org/project/setuptools/60.3.0/
Not sure how to fix that without a working pip though.
QUESTION
I'm learning about different memory orders.
I have this code, which works and passes GCC's and Clang's thread sanitizers:
...ANSWER
Answered 2022-Jan-04 at 16:06The thread sanitizer currently doesn't support std::atomic_thread_fence. (GCC and Clang use the same thread sanitizer, so it applies to both.)
GCC 12 (currently trunk) warns about it:
QUESTION
The standard defines several 'happens before' relations that extend the good old 'sequenced before' over multiple threads:
[intro.races]11 An evaluation A simply happens before an evaluation B if either
(11.1) — A is sequenced before B, or
(11.2) — A synchronizes with B, or
(11.3) — A simply happens before X and X simply happens before B.[Note 10: In the absence of consume operations, the happens before and simply happens before relations are identical. — end note]
12 An evaluation A strongly happens before an evaluation D if, either
(12.1) — A is sequenced before D, or
(12.2) — A synchronizes with D, and both A and D are sequentially consistent atomic operations ([atomics.order]), or
(12.3) — there are evaluations B and C such that A is sequenced before B, B simply happens before C, and C is sequenced before D, or
(12.4) — there is an evaluation B such that A strongly happens before B, and B strongly happens before D.[Note 11: Informally, if A strongly happens before B, then A appears to be evaluated before B in all contexts. Strongly happens before excludes consume operations. — end note]
(bold mine)
The difference between the two seems very subtle. 'Strongly happens before' is never true for matching pairs or release-acquire operations (unless both are seq-cst), but it still respects release-acquire syncronization in a way, since operations sequenced before a release 'strongly happen before' the operations sequenced after the matching acquire.
Why does this difference matter?
'Strongly happens before' was introduced in C++20, and pre-C++20, 'simply happens before' used to be called 'strongly happens before'. Why was it introduced?
[atomics.order]/4 says that the total order of all seq-cst operations is consistent with 'strongly happens before'.
Does it mean that it's not consistent with 'simply happens before'? If so, why not?
I'm ignoring the plain 'happens before', because it differs from 'simply happens before' only in its handling of memory_order_consume, the use of which is temporarily discouraged, since apparently most (all?) major compilers treat it as memory_order_acquire.
I've already seen this Q&A, but it doesn't explain why 'strongly happens before' exists, and doesn't fully address what it means (it just states that it doesn't respect release-acquire syncronization, which isn't completely the case).
Found the proposal that introduced 'simply happens before'.
I don't fully understand it, but it explains following:
- 'Strongly happens before' is a weakened version of 'simply happens before'.
- The difference is only observable when seq-cst is mixed with aqc-rel on the same variable (I think, it means when an acquire load reads a value from a seq-cst store, or when an seq-cst load reads a value from a release store). But the exact effects of mixing the two are still unclear to me.
ANSWER
Answered 2022-Jan-02 at 18:21Here's my current understanding, which could be incomplete or incorrect. A verification would be appreciated.
C++20 renamed strongly happens before to simply happens before, and introduced a new, more relaxed definition for strongly happens before, which imposes less ordering.
Simply happens before is used to reason about the presence of data races in your code. (Actually that would be the plain 'happens before', but the two are equivalent in absence of consume operations, the use of which is discouraged by the standard, since most (all?) major compilers treat them as acquires.)
The weaker strongly happens before is used to reason about the global order of seq-cst operations.
This change was introduced in proposal P0668R5: Revising the C++ memory model, which is based on the paper Repairing Sequential Consistency in C/C++11 by Lahav et al (which I didn't fully read).
The proposal explains why the change was made. Long story short, the way most compilers implement atomics on Power and ARM architectures turned out to be non-conformant in rare edge cases, and fixing the compilers had a performance cost, so they fixed the standard instead.
The change only affects you if you mix seq-cst operations with acquire-release operations on the same atomic variable (i.e. if an acquire operation reads a value from a seq-cst store, or a seq-cst operation reads a value from a release store).
If you don't mix operations in this manner, then you're not affected (i.e. can treat simply happens before and strongly happens before as equivalent).
The gist of the change is that the synchronization between a seq-cst operation and the corresponding acquire/release operation no longer affects the position of this specific seq-cst operation in the global seq-cst order, but the synchronization itself is still there.
This makes the seq-cst order for such seq-cst operations very moot, see below.
The proposal presents following example, and I'll try to explain my understanding of it:
QUESTION
I am trying to implement firebase in my React application but it seems my version of importing is outdated. Here is my code:
...ANSWER
Answered 2021-Aug-26 at 23:53Follow the instructions in the documentation, which specifically calls out the steps for version 9:
- Install Firebase using npm:
QUESTION
Uploading an iOS app to App Store Connect with Xcode (Automatically manage signing) and received this error:
The following errors occurred while locating and generating signing assets. ...
Communication with Apple failed. You haven't been given access to cloud-managed distribution certificates. Please contact your team's Account Holder or an Admin to give you access. If you need further assistance, contact Apple Developer Program Support at https://developer.apple.com/support
I have checked:
- the cert is installed and valid
- I have access to Certificates, Identifiers & Profiles
ANSWER
Answered 2021-Oct-18 at 01:45the cert is installed and valid
That doesn't matter. New in Xcode 13, if you choose Automatic signing, Apple tries to do cloud-based signing; it doesn't even see the certificate that's on your computer.
But you do not have the cloud-based signing privilege, so it fails.
You have two choices:
Get the privilege. It is really worth it, because cloud-based signing is great! It allows you to distribute from an archive to App Store Connect without having any distribution identity or distribution certificate at all. This totally solves the problem that there's only one distribution certificate at a time.
Switch to manual signing. Now the distribution certificate on your computer will be used. You'll need explicit access to the distribution profile too, obviously; the whole export resigning will be manual. That might be simplest if you're in a hurry.
QUESTION
I have recently updated to Xcode 13.2 from the Mac App Store. While trying to fix an issue with a Swift package, I uninstalled it and now I cannot reinstall the package.
When I try to add a package from GitHub the process hangs immediately on "Preparing to validate".
I already attempted to restart Xcode, restart my mac, clean derived data, reset Swift package caches and update package versions to no avail.
...ANSWER
Answered 2021-Dec-14 at 04:14Check https://developer.apple.com/forums/thread/696504 and re-download Xcode 13.2 directly from the releases section of the Apple Developer website: https://developer.apple.com/download/release/
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