Delivery | This project was generated with Angular CLI version | Generator Utils library
kandi X-RAY | Delivery Summary
kandi X-RAY | Delivery Summary
This project was generated with Angular CLI version 8.2.2.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Delivery
Delivery Key Features
Delivery Examples and Code Snippets
Lines of Code : 6License : Permissive (MIT License)
Copyfunction Shipping() {
this.name = 'shipping';
this.next = function() {
return new Delivered();
};
} function Delivered() {
this.name = 'delivered';
this.next = function() {
return this;
};
} public void deliver() {
if (isDeliverable()) {
PizzaDeliverySystemConfiguration.getInstance().getDeliveryStrategy().deliver(this);
this.setStatus(PizzaStatusEnum.DELIVERED);
}
} Community Discussions
Trending Discussions on Delivery
QUESTION
we received a crash on Firebase for a kotlin method:
...ANSWER
Answered 2022-Apr-12 at 11:53Shouldn't the exception be thrown way before getting to the constructor call for DeliveryMethod?
Within Kotlin, it's not possible for a non-null parameter to be given a null value at runtime accidentally (because the code wouldn't have compiled in the first place). However, this can happen if the value is passed from Java. This is why the Kotlin compiler tries to protect you from Java's null unsafety by generating null-checks at the beginning of some methods (with the intrinsic checkNotNullParameter you're seeing fail here).
However, there is no point in doing that in private or suspend methods since they can only be called from Kotlin (usually), and it would add some overhead that might not be acceptable in performance-sensitive code. That is why these checks are only generated for non-suspend public/protected/internal methods (because their goal is to prevent misuse from Java).
This is why, if you manage to call addSingleDMInAd with a null argument, it doesn't fail with this error. That said, it would be interesting to see how you're getting the null here, because usually the checks at the public API surface are enough. Is some reflection or unsafe cast involved here?
EDIT: with the addition of the calling code, this clears up the problem. You're calling a method that takes a List from Java, with a list that contains nulls. Unfortunately Kotlin only checks the parameters themselves (in this case, it checks that the list itself is not null), it doesn't iterate your list to check for nulls inside. This is why it didn't fail at the public API surface in this case.
Also, the way your model is setup is quite strange. It seems the lateinit is lying because depending on which constructor is used, the properties may actually not be set at all. It would be safer to mark them as nullable to account for when users of that class don't set the value of these properties. Doing this, you won't even need all secondary constructors, and you can just use default values:
QUESTION
I am using a managed RabbitMQ cluster through AWS Amazon-MQ. If the consumers finish their work quickly then everything is working fine. However, depending on few scenarios few consumers are taking more than 30 mins to complete the processing. In that scenarios, RabbitMQ deletes the consumer and makes the same messages visible again in the queue. Becasue of this another consumer picks it up and starts processing. It is happing in the loop. Therefore the same transaction is getting executed again and I am loosing the consumer as well. I am not using any AcknowledgeMode so I believe it's AUTO by default and it has 30 mins limit. Is there any way to increase the Delivery Acknowledgement Timeout for AUTO mode? Or please let me know if anyone has any other solutions for this.
...ANSWER
Answered 2021-Sep-02 at 13:29This is the response from AWS support.
From my understanding, I see that your workload is currently affected by the consumer_timeout parameter that was introduced in v3.8.15. We have had a number of reach outs due to this, unfortunately, the service team has confirmed that while they can manually edit the rabbitmq.conf, this will be overwritten on the next reboot or failover and thus is not a recommended solution. This will also mean that all security patching on the brokers where a manual change is applied, will have to be paused. Currently, the service does not support custom user configurations for RabbitMQ from this configuration file, but have confirmed they are looking to address this in future, however, is not able to an ETA on when this will available.
From the RabbitMQ github, it seems this was added for quorum queues in v3.8.15 (https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.8.15 ), but seems to apply to all consumers (https://github.com/rabbitmq/rabbitmq-server/pull/2990 ).
Unfortunately, RabbitMQ itself does not support downgrades (https://www.rabbitmq.com/upgrade.html ) Thus the recommended workaround and safest action form the service team, as of now is to create a new broker on an older version (3.8.11) and set auto minor version upgrade to false, so that it wont be upgraded. Then export the configuration from the existing RabbitMQ instance and import it into new instance and use this instance going forward.
QUESTION
I have added validator in TextField but validator is not working while submitting data. Save button saves the data with null value.
...ANSWER
Answered 2022-Mar-09 at 17:16The only possible reason is because of _addressType it's initial value is null
since it's a String? variable so if the user didn't select a "Delivery Slot"
the result of it after saving would be null,
what you need to do, it to check the value of _addressType if it's null or not then proceed to saving the form because your form doesn't check it if it's null or not.
QUESTION
I just switched from ForkPool to gevent with concurrency (5) as the pool method for Celery workers running in Kubernetes pods. After the switch I've been getting a non recoverable erro in the worker:
amqp.exceptions.PreconditionFailed: (0, 0): (406) PRECONDITION_FAILED - delivery acknowledgement on channel 1 timed out. Timeout value used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more
The broker logs gives basically the same message:
2021-11-01 22:26:17.251 [warning] <0.18574.1> Consumer None4 on channel 1 has timed out waiting for delivery acknowledgement. Timeout used: 1800000 ms. This timeout value can be configured, see consumers doc guide to learn more
I have the CELERY_ACK_LATE set up, but was not familiar with the necessity to set a timeout for the acknowledgement period. And that never happened before using processes. Tasks can be fairly long (60-120 seconds sometimes), but I can't find a specific setting to allow that.
I've read in another post in other forum a user who set the timeout on the broker configuration to a huge number (like 24 hours), and was also having the same problem, so that makes me think there may be something else related to the issue.
Any ideas or suggestions on how to make worker more resilient?
...ANSWER
Answered 2022-Mar-05 at 01:40For future reference, it seems that the new RabbitMQ versions (+3.8) introduced a tight default for consumer_timeout (15min I think).
The solution I found (that has also been added to Celery docs not long ago here) was to just add a large number for the consumer_timeout in RabbitMQ.
In this question, someone mentions setting consumer_timeout to false, in a way that using a large number is not needed, but apparently there's some specifics regarding the format of the configuration for that to work.
I'm running RabbitMQ in k8s and just done something like:
QUESTION
I have a problem using the storage to persist the user login data .
the scenario like that : after login , I clear the app and try to reopen it again , sometimes it open and sometimes it's freezes on the splash screen. this only happen in the release mode .
I tried to remove every package until I found the problem with using the storage after login. so I if I not login nothing freezes .
I used get_storage and shared_preferences and secured_storage packages but nothing changed . flutter 2.10.2.
tested on real device
also this the the used packages
...ANSWER
Answered 2022-Feb-23 at 09:06Take you real device and connect it to you pc via cable and install release version of you app
Go-to terminal and run
flutter logsto see what's going onIn some cases, may be permissions are reason. You need to specify them
(don't relax because of default permissions set)
QUESTION
I'm creating a custom dynamic form using Material UI https://mui.com/ library as the component for my React Js app.
Here is the initial state of the dynamic form component.
As we can see that the dynamic form component starts only with one delivery point form. We could add another delivery point form by clicking the "Add Delivery" button. Here is the example after clicking the "Add Delivery" button.
The problem is: the first form and the second form have the same values (if there are more than 1 form) after we gave input to one of the first or second forms as seen in the screenshot below. This is not the condition I want.
But the rest (third, fourth, and so on) forms are unique as seen in the screenshot below. This is the condition I want.
Here is the simple working code:
DeliveryPoint.jsx
...ANSWER
Answered 2022-Feb-25 at 09:40You are mutating the state in your handleFormObjectChange and handleDatePickerChange handlers.
QUESTION
I'm trying to validate huge amount of data using Laravel LazyCollection, I test the code with 15 thousands rows each contains 9 columns to be validated.
The scenario is user upload the excel file, then convert it to array, after that the validation of data begins
The Controller :
...ANSWER
Answered 2022-Jan-27 at 17:25Since you have already loaded the entire contents of the spreadsheet into the $validatedFile variable, why make a LazyCollection object? Their only purpose is to save memory by not loading large data sets into memory. Your validation rules using closures can also be cleaned up. This isn't just a cosmetic change: in_array() is notoriously slow.
QUESTION
I am trying to make a simple food delivery system by using data structures. I hold the Neighborhood names in an ArrayList and I hold the Delivery Count, Food Name and it's count in GenericList. I drew the schematic and attached the photo.
I coded the program which prints the "Hood Name and it's delivery count" my code and my outputs are here:
...ANSWER
Answered 2021-Dec-30 at 01:57I would use Lists of objects to define your data structure. And then LINQ to query, manipulate, etc. I think it will be more flexible and give you closer to what you want. Something like this:
QUESTION
So, I am trying to create a tick box that has this action:
- The chkAll box , once been ticked, all other check boxes will also ticked.
- When this action happens, a button will appear.
Then, another action I am trying to achieve is, if two or more checkboxes (not included the chkAll box is ticked, the same button will appear too. This button is like a zip file button, so, only if more than one check box is ticked, it will appear (enabled to be used).
Currently the error I am facing is, 1.the chkAll check box needs to double click only then, the button appear.
2.And when I unclicked the chkAll check box, the button does disappear, but the other chckboxes are still ticked, which they suppose to be unticked too.
3.And when more than 1 check boxes are ticked, the button does not appear.
I am new to php, jquery, so will really appreciate any guidance from you. Thank you.
...ANSWER
Answered 2021-Dec-15 at 04:19QUESTION
We are having difficulties choosing a load balancing solution (Load Balancer, Application Gateway, Traffic Manager, Front Door) for IIS websites on Azure VMs. The simple use case when there are 2 identical sites is covered well – just use Azure Load Balancer or Application Gateway. However, in cases when we would like to update websites and test those updates, we encounter limitation of load balancing solutions.
For example, if we would like to update IIS websites on VM1 and test those updates, the strategy would be:
- Point a load balancer to VM2.
- Update IIS website on VM1
- Test the changes
- If all tests are passed then point the load balancer to VM1 only, while we update VM2.
- Point the load balancer to both VMs
We would like to know what is the best solution for directing traffic to only one VM. So far, we only see one option – removing a VM from backend address pool then returning it back and repeating the process for other VMs. Surely, there must be a better way to direct 100% of traffic to only one (or to specific VMs), right?
Update:
We ended up blocking the connection between VMs and Load Balancer by creating Network Security Group rule with Deny action on Service Tag Load Balancer. Once we want that particular VM to be accessible again we switch the NSG rule from Deny to Allow.
The downside of this approach is that it takes 1-3 minutes for the changes to take an effect. Continuous Delivery with Azure Load Balancer
If anybody can think of a faster (or instantaneous) solution for this, please let me know.
...ANSWER
Answered 2021-Nov-02 at 21:22Without any Azure specifics, the usual pattern is to point a load balancer to a /status endpoint of your process, and to design the endpoint behavior according to your needs, eg:
- When a service is first deployed its status is 'pending"
- When you deem it healthy, eg all tests pass, do a POST /status to update it
- The service then returns status 'ok'
Meanwhile the load balancer polls the /status endpoint every minute and knows to mark down / exclude forwarding for any servers not in the 'ok' state.
Some load balancers / gateways may work best with HTTP status codes whereas others may be able to read response text from the status endpoint. Pretty much all of them will support this general behavior though - you should not need an expensive solution.
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