dropwizard | damn simple library for building production | REST library
kandi X-RAY | dropwizard Summary
kandi X-RAY | dropwizard Summary
A damn simple library for building production-ready RESTful web services.
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Top functions reviewed by kandi - BETA
- Configure the ssl context factory .
- Creates an HTTP client .
- Expect this object to be used as a JSON object .
- Add override .
- Builds the appender .
- Configure loggers .
- Build SetUIDListener .
- Performs authentication .
- Gets the converter .
- Create ssl context factory .
dropwizard Key Features
dropwizard Examples and Code Snippets
Community Discussions
Trending Discussions on dropwizard
QUESTION
This is using Dropwizard's logging with Yaml file and some java.
I wanted to add an instance field in the Dropwizard filename, so that the logs can go handle multiple instances. This was not too difficult. I build a FileAppenderFactory and on buildAppender I just getCurrentLogFilename(), modify it for the instance number, and then setIt. Ditto for the archived name. All well and good.
The problem was when I wanted to add a second file appender (for metrics).
So before I had
...ANSWER
Answered 2022-Mar-24 at 15:24The answer is complex.
For the additive appender (above) the ObjectMapper that is used to do it is created in DiscoverableSubtypeResolver and not in the base deserializer. So you cannot register your factory programatically, but must instead add it to the META-INF\services\io.dropwizard.logging.AppenderFactory file (which you will need to copy from the dropwizard jar and then add your factory).
That will at least get your factory hit (although there are other dropwizard problems that you may encounter, but they are beyond the scope of this question).
QUESTION
In my application config i have defined the following properties:
...ANSWER
Answered 2022-Feb-16 at 13:12Acording to this answer: https://stackoverflow.com/a/51236918/16651073 tomcat falls back to default logging if it can resolve the location
Can you try to save the properties without the spaces.
Like this:
logging.file.name=application.logs
QUESTION
I am writing my first web-application as practice learning different frameworks. Please forgive me if I make any very obvious mistakes as I am new to this.
I am using Dropwizard and Kotlin to write the backend of my application. I am running 2 docker containers: one with the application.jar file and another with a PostgreSQL database. As I am learning the process and individual frameworks step-by-step, I am writing certain code snippets to help me work out what is actually happening.
I am using Hibernate as my ORM to map my Kotlin objects to the database. I tried creating a random object using a @POST method in my resources class, as shown below.
...ANSWER
Answered 2022-Feb-14 at 08:41This makes sense - if you invoke your method directly then you are just executing your method's code - the annotation doesn't cause any extra behaviour.
The way frameworks like Spring and JAX-RS work is that on startup, the code that actually handles http requests is given a reference not to your class but to a dynamically generated subclass (this is what cglib is for) - if you hit a breakpoint in your method you will see that the object is not an instance of your class but something with a generated name.
The subclass overrides your method to decorate it with additional code - in this case to create the Session. This wrapper code is commonly defined in aspects with join points based on the annotation, and cglib pulls that aspect code into the compiled subclass. (if the annotated method is on an interface then a Java dynamic proxy is used rather than cglib and it just implements the interface rather than having to extend a class).
You can indeed call your post from curl - try something like curl -X POST localhost:8080/the_path -H 'Content-type:application/json' -d '{"question":"answer"}'
QUESTION
I have a Dropwizard application that queries an external REST API using a Jersey client and mapping the data with Jackson. GET requests work alright (including object mapping), but PUT resquests fail with error 500 and when I check the REST API server logs, it shows the following:
...ANSWER
Answered 2022-Feb-10 at 14:07I solved the issue by disabling gzip in the Jersey client from the config file (yml):
QUESTION
I have a YML file for configuration that includes the dropwizard logging, like so:
...ANSWER
Answered 2022-Feb-01 at 19:52For some reason I had to add the following setup method
QUESTION
We recently updated the deployment of a dropwizard service deployed using Docker and Kubernetes.
It was working correctly before, the readiness probe was yielding a healthcheck ping to internal cluster IP getting 200s. Since we updated the healthcheck pings are resulting in a 301 and the service is considered down.
I've noticed that the healthcheck is now Default kubernetes L7 Loadbalancing health check for NEG. (port is set to 80) where it was previously Default kubernetes L7 Loadbalancing health check. where the port was configurable.
The kube file is deployed via CircleCI but the readiness probe is:
...ANSWER
Answered 2022-Feb-01 at 06:06Issue is now resolved. After GKE version was updated it is now creating a NEG healthcheck by default. We disabled this by adding below annotation to service deployment file.
metadata: annotations: cloud.google.com/neg: '{"ingress":false}'
QUESTION
I'm trying to collect metrics with DropWizard metrics library and export them through JMX.
On Google Cloud Engine it's easy to export these metrics with JMX plugin for Stackdriver (https://cloud.google.com/monitoring/agent/plugins/jvm#configuring)
However I need to do similar thing using Cloud Run, is there a known way to do that?
Thanks!
...ANSWER
Answered 2021-Dec-29 at 21:24I'm unfamiliar with JMX but familiar with GCP including Cloud Run.
I've implemented something similar(ish) using Prometheus (and Cloud Endpoints for app security), multiplexing the app and metrics on 8080.
IIUC the monitoring agent (based on collectd):
- collects metrics uses a predefined port
- ships these to Cloud Monitoring (formerly Stackdriver)
As you know, Cloud Run is container-based and only permits a single port (8080
).
I suspect it would be messy (and likely not supported by Google) to try to bundle the agent in the app's container but that the agent would be able to call home (Cloud Monitoring) though still, though perhaps with some IAM tweaking.
It would be great if Cloud Run permitted multiple containers per service
Potentially, you can multiplex JMX and your app traffic over 8080.
It would be great if Cloud Run permitted multiple ports per service
Then, your regular users could access the app and the monitoring agent (running elsewhere) could ping the JMX metrics on the same service port and ship these to Cloud Monitoring.
You'd need to be more mindful of security. You can craft JWTs to authenticate to Cloud Run though these are more "prickly" with Cloud Run because each service requires a specific JWT using the service's endpoint to form its audience.
You'd likely want to prohibit authenticated app users from capturing your JMX metrics too.
I'm assuming there's no restriction on routing JMX traffic through Google's frontend to Cloud Run services.
QUESTION
I am very new to apache spark and I just have to fetch a table from cassandra database, Below I have appended the data to debug the situation, Please help and thanks in advance. Cassandra Node:192.168.56.10 Spark Node: 192.168.56.10
Cassandra Table to be fetched: dev.device {keyspace.table_name}
Access pyspark with connection to cassandra:
...ANSWER
Answered 2021-Dec-27 at 11:08You can't use connector compiled for Scala 2.11 with Spark 3.2.0 that is compiled with Scala 2.12. You need to use appropriate version - right now it's 3.1.0 with coordinates com.datastax.spark:spark-cassandra-connector_2.12:3.1.0
P.S. Please note that although basic functionality will work, more advanced functionality won't work until the SPARKC-670 is fixed (see this PR)
QUESTION
I've done quite a bit of digging and research on implementations of client side per-tenant encryption but am a bit stumped on how I should proceed with our application. For some background we've got a dropwizard
application that has many custom DAOs that stores information in our postgres
database using jooq
. There are many tables, custom functions, and custom user defined data types for our database. Our requirement is that some sensitive data for our customers needs to be encrypted (certain columns in the database tables). The data is partitioned by rows per tenant.
I understand I've got two options of where to put the encryption of the data.
- In our application
- In our
postgres
database
Here's what I've found when exploring the two options above:
While putting the encryption in our application was my original plan having to edit every DAO will likely cause many problems and take an obscene amount of time.
So I've looked at the alternative of having the database handle the encryption using pgcrypto with column-side encryption. However, like a mentioned earlier because of all of our custom data types for columns I'm not able to store any encrypted data for these custom data type columns since the encrypted data is returned as a bytea
. Pruning docs and other stack overflow posts I was not able to find a solution to this other than changing the data type of these columns to accept bytea vs their custom types which I'd like to avoid if possible.
After this I'm a bit stumped on how best to proceed next as both options I've laid out here would take a large chunk of time and possibly break a lot of our app.
Some other ideas I've had:
- I've looked into
jooq
orliquibase
doing the encryption but couldn't find anything there. - Instead of updating the data types of columns just create a new encrypted version of the database and use views for plaintext representations of tables.
My big question: Given the background information here, are there any suggestions or alternatives to implement client side encryption? (With being the least disruptive to our current architecture)
Thanks! :)
...ANSWER
Answered 2021-Sep-15 at 06:32You can easily use a jOOQ Converter
that implements your encryption/decryption transparently on all desired columns, if you attach it to those columns using the code generator.
Example:
QUESTION
my pom.xml file:
...ANSWER
Answered 2021-Sep-15 at 03:45You have told Maven that your project is only a POM artifact (which doesn't have code or need jars):
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Install dropwizard
You can use dropwizard 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 dropwizard 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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