sdk-java | Java SDK for CloudEvents | Pub Sub library
kandi X-RAY | sdk-java Summary
kandi X-RAY | sdk-java Summary
The Java SDK for CloudEvents is a collection of Java packages to adopt CloudEvents in your Java application.
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Top functions reviewed by kandi - BETA
- Parses an expression .
- On connect request handler .
- Starts the downloader .
- Escape the given value .
- Write a context attribute .
- Serialize this object into a CloudEventContextWriter
- Convert a like LIKE pattern to a regular expression
- Sends AMQP message .
- Attempts to parse a structured or structured or binary or binary format from a stream .
- Handles a binary comparison expression .
sdk-java Key Features
sdk-java Examples and Code Snippets
Community Discussions
Trending Discussions on sdk-java
QUESTION
I am trying to POST an image with the requests module from my local client to a service (tillhub.com). Since the api documentation for posting images is missing (at least for me) some important aspects, I am trying to use the Google Chrome Dev Tools to figure out the neccessary parameters. When I upload an image directly from the dashboard, I can see that the following parameters for the header are used:
In addition that, I can see that the following form data is going to be passed:
I am trying to mimic the request from my local client with the following snippet:
...ANSWER
Answered 2021-Jun-10 at 18:54I was playing with your code block. I have removed the content-type after this question answer.
QUESTION
I'm looking at the below link which explains how to use AWS API to send emails. How would the below example work in prod environment since AWS access key ID and AWS secret access key added to the credential file would expire after some time.
https://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-using-sdk-java.html
I can see how AWS SES SMTP can be used to send emails since the credentials don't change can be saved in a file on a server but unsure how SES API in the above link can be used.
...ANSWER
Answered 2021-May-18 at 03:35Store your AWS credentials in Secrets Manager and automate the key rotation using SNS + Lambda, from there you could send the newly updated keys to your application through an endpoint.
Use this guide from the AWS Documentation as a somewhat relevant source of what you're trying to accomplish: https://docs.aws.amazon.com/prescriptive-guidance/latest/patterns/automatically-rotate-iam-user-access-keys.html
QUESTION
I am trying to use JUnit4 for testing of my project. I have tried using JUnit5 but I cannot get this working either. I am trying to test my account controller at the momemnt. This is the full stack trace of the error I am receving
...ANSWER
Answered 2021-May-05 at 11:37If read stacktrace more properly, you have this exception Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
Add hibernate dialect to your properties. Here is a question with the same exception.
QUESTION
I have recently upgraded my application to :
- Spring Boot: 2.4.4
- microsoft-graph: 3.0.0
While upgrading the application i have followed the upgrade guide.
I'm retrieving the group members using below code:
...ANSWER
Answered 2021-Mar-31 at 12:46The GraphServiceClient is being instantiated for each call. This in turns instantiates one OkHttpClient per GraphServiceClient, which in turns creates a connection pool. Because of the way connections are managed by OSes (they are kept open for a period because closing and opening a connection is a costly operation), this will lead to a port exhaustion on the machine.
The next requests that come in after no more ports are available, block waiting for a port to free and for a connection to be available, and eventually timeout with the exception you are seeing.
To fix that issue:
- Make sure your GraphClient class is instantiated once throughout the lifecycle of your application
- Implement some lazy loading for the getGraphServiceClient method, so it "caches" a client in a field and returns that if the value is not null instead of creating a new one for each call.
QUESTION
Application Type : Java Spring Boot Daemon application using Client Credentials Flow.
I was earlier using microsoft-graph 2.10.0 for fetching data from Microsoft graph. However with the recent microsoft-graph 3.0.0, I wanted to update the project.
Following the upgrade and auth details, i have used the below to get the GraphServiceClient using ClientCredentials azure-identity:
...ANSWER
Answered 2021-Mar-24 at 12:50For anyone facing the issue, below is a solution:
Project Details:
Spring Boot 2.4.4
microsoft-graph 3.0.0
Create GraphClient using below:
QUESTION
I am using UsernamePasswordCredential provider to connect to AAD and get de users using msgraph-sdk-java (https://github.com/microsoftgraph/msgraph-sdk-java), the code is the following:
...ANSWER
Answered 2021-Apr-13 at 13:00Your problem has been resolved through comments. Post it as an answer to end the thread:
Make sure your account is not a personal account.
Make sure you enable
Allow public client flows.
- Using msal4j library and PublicClientApplication class to acquire a token with a username, password and scope.
QUESTION
I am working in AWS S3 storage where we have buckets and files are being added to the buckets. The Bucket information is logged into another bucket in text format.
I would like to convert the log information stored in text files to JSON. there however is no Key-Pair Information in the file.
The contents of the LogFile is as below: -
fd89d80d676948bd913040b667965ef6a50a9c80a12f38c504f497953aedc341 s3Samplebucket [10/Mar/2021:03:27:29 +0000] 171.60.235.108 fd89d80d676948bd913040b667965ef6a50a9c80a12f38c504f497953aedc341 MX1XP335Q5YFS06H REST.HEAD.BUCKET - "HEAD /s3Samplebucket HTTP/1.1" 200 - - - 13 13 "-" "S3Console/0.4, aws-internal/3 aws-sdk-java/1.11.964 Linux/4.9.230-0.1.ac.224.84.332.metal1.x86_64 OpenJDK_64-Bit_Server_VM/25.282-b08 java/1.8.0_282 vendor/Oracle_Corporation" - AMNo4/b/T+5JdEVQpLkqz0SV8VDXyd3odEFmK+5LvanuzgIXW2Lv87OBl5r5tbSZ/yjW5zfFQsA= SigV4 ECDHE-RSA-AES128-GCM-SHA256 AuthHeader s3-us-west-2.amazonaws.com TLSv1.2
The individual values for the Log file are as below: -
Log fields
Bucket Owner: fd89d80d676948bd913040b667965ef6a50a9c80a12f38c504f497953aedc341
Bucket: S3SampleBucket
Time: [11/Mar/2021:** 06:** 52:** 33 +0000]
Remote IP: 183.87.60.172
Requester: arn:** aws:** iam:** :** 486031527132:** user/jdoe
Request ID: 9YQ1MWABKNRPX3MP
Operation: REST.GET.LOCATION
Key: - (BLANK)
Request-URI: "GET /?location HTTP/1.1"
HTTP status: 200
Error Code: - (BLANK)
Bytes Sent: 137
Object Size: - (BLANK)
Total Time: 17
Turn-Around Time: - (BLANK)
Referer: "-" (BLANK)
User-Agen: "AWSPowerShell/4.1.9.0 .NET_Runtime/4.0 .NET_Framework/4.0 OS/Microsoft_Windows_NT_10.0.18363.0 WindowsPowerShell/5.0 ClientSync"
Version Id: - (BLANK)
Host Id: Q5WBxJNrwsspFmtOG+d2YN0xAtvbq1sdqm9vh6AflXdMCmny5VC3bZmyTBZavKGpO3J/uz+IfK0=
Signature Version: SigV4
Cipher Suite: ECDHE-RSA-AES128-GCM-SHA256
Authentication Type: AuthHeader
Host Header: S3SampleBucket.s3.us-west-2.amazonaws.com
TLS version: TLSv1.2
I can add the Value in a Configuration file is what I can think of. I would like to do this in either PowerShell or Python.
Any assistance wold be of great help.
...ANSWER
Answered 2021-Mar-12 at 12:06The log format can be interpreted as a CSV (with a whitespace delimiter), so you could parse it using Import-Csv/ConvertFrom-Csv:
QUESTION
We have configured tracking in cloudwatch for sending emails via AWS SES programmatically via AWS SDK ( as mentioned in the documentation). Whenever I send an email for the first time with a new configuration set I am able to see the metrics (open, click) value updated to 1. When I send the same email to another recipient the metric value should increase to 2 but there is no change in the cloudwatch metric and it always shows value as 1.
I have configured message tags and configuration set as well.
I checked after few hours but still, metrics were not updated. I am not sure if there is some issue with cloudwatch - SES configuration or I am missing any configuration in the graph?
...ANSWER
Answered 2021-Mar-12 at 06:50You can check in the cloudwatch graphed metrics. You may have selected Statistic value to Average which is default selection. You can try after changing that value to Sum. View Example here
QUESTION
I am trying to securely connect multiple devices(200+) to Microsoft Azure IoT Central. I have an android app running api 19 that connects a single device via https to IoT Central.
I am following the tutorial for SaS group enrollment.
I understand that I need a connection string to connect to IoT central which is composed of the underlying IoT Hub name, device primary key and device id(which can be the device imei or something so that can be auto generated).
However inserting the primary key for each device would require modifying the app for 200+ devices.
In order to auto generate the device primary key it can be derived from the the SAS-IoT-Devices group master key by running: az iot central device compute-device-key --primary-key --device-id or in my case using android studio with the code:
ANSWER
Answered 2021-Mar-11 at 20:09In absence of unique hardware root of trust, your security posture will always be relatively weak.
One option is to generate device specific key in a Azure service, e.g. Azure Function which can use the master Key stored in a Azure Key vault. The android app will still need to attest its unique identity with the function and request device specific identities. This will avoid having a common master key in the app.
If you have an option to take advantage of unique ID on Android, e.g. FID (https://developer.android.com/training/articles/user-data-ids), it can be used to attest the app identity with the function.
Other option is to generate key pair per device and use that to create CSR, get device specific X509. It will add more complexity and still need bootstrap attestation mechanism.
QUESTION
I'm trying to get and S3 object size via Java AWS SDK (v2), and send it back via HTTP response (this is all inside a HTTP Server using com.sun.net.httpserver.HttpServer). But it doesn't work and shows me the following debug messages.
What's going wrong here? Am I missing anything?
...ANSWER
Answered 2021-Mar-05 at 16:27The warning message there is a little bit misleading and technically should be error in this particular case as this is a breaking change in httpclinet library which can cause unexpected behavior of the program. This dependency itself comes as a transitive dependency from aws-java-sdk. So, to get it fixed just follow recommendation provided in the warning message and explicitly define the required version of httpclinet in your project pom file:
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You can use sdk-java 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 sdk-java 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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