jeromq | Pure Java implementation of libzmq ( http : //zeromq
kandi X-RAY | jeromq Summary
kandi X-RAY | jeromq Summary
Pure Java implementation of libzmq (
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Top functions reviewed by kandi - BETA
- Starts the reactor loop
- Rebuilds the poller
- Calculate the tickless timer
- Cancel an existing poller
- Main loop
- Execute the timers
- Rebuilds the selector
- Receive a binary picture message from the socket
- Returns a new block of bytes
- Attaches IOThread to the session
- Returns the next ZAP handshake command
- Decodes data into the buffer
- Helper method to handle a request
- Resolve an IP address
- Receive a command from the remote pipe
- Reads the next message
- Poll for messages from the channel
- Accepts a new socket connection
- Decodes a message
- Receive a picture message
- Queue a picture message
- Encodes binary data into a batch
- Receive data from the peer
- Encode a message
- Encodes a message
- Sends a message to the peer
jeromq Key Features
jeromq Examples and Code Snippets
Community Discussions
Trending Discussions on jeromq
QUESTION
I am trying to hook up a JeroMQ publisher to a PyZMQ subscriber. It works well but I don't know how to decode/deserialize the data I am getting on the Python side.
For example, here is a byte array that I am sending from Java: [10, 10, 7, 55, 79]. My goal would be to recover the same array of integers in Python. In practice, I am getting this here b"\n\n\xf97O" on the Python end. I was hoping that a bytes.decode("utf-8") would maybe get me something like 101075579, but apparently utf-8 is the wrong codec. Do you know what kind of object b"\n\n\xf97O" is?
Here is the code I am using:
Java side
...ANSWER
Answered 2021-Jul-24 at 19:27it's a bytes object, also called a byte-string. If you just convert it to a list, you get a list of integers, one per byte:
QUESTION
I'm new to gradle, but recently I wanted to use Kotlin-Jupyter notebook for a project.
I followed the instructions, I cloned the repo at https://github.com/Kotlin/kotlin-jupyter...
Throughout my struggles, I have gone through a whopping 5-6 errors, all of which have taken days on end to fix. It has quite literally been a nightmare.
I am getting this new error when typing in the command gradlew install, it is an internal exception:
ANSWER
Answered 2021-Apr-10 at 22:32Using a JDK version that isn't 16 (I used JDK 15) should solve the problem. Also, make sure you change all of your environment variables and relaunch whatever command-line you are using.
QUESTION
I'm trying to get a basic implementation of a ZMQ publisher and subscriber working, but it's failing silently. I'm using JeroMQ 0.5.2 (the current version) and Java 8.
Consider the following official test file: https://github.com/zeromq/jeromq/blob/master/src/test/java/org/zeromq/PubSubTest.java
I've copied the first test (testRaceConditionIssue322) in its entirety into a new main class and run it. The publisher binds to the port, and claims to send every message, but the receiver does not receive a single message. Adding logs indicates that the subscriber believes itself to be subscribed before the publisher sends messages.
I've tried this on two computers, as well as with different code, and it's the same net result each time. What gives?
...ANSWER
Answered 2020-Mar-20 at 00:32Ok, I figured it out. Two things converged in an unfortunate way.
- The test I linked was, possibly on purpose, starting the subscriber before the publisher. For some reason, the subscriber reported a successful connection, even though the publisher had not yet opened the port. It did not make a connection, and did not receive the messages subsequently sent. When I made sure the publisher was bound and listening for connections, and then the subscriber connected, and then the publisher published messages, it worked how I as expecting.
- The OTHER code I was using, as a subscriber, had a line in it I didn't notice -
socket.hasReceiveMore(). It was expecting two strings in one message, but I was sending two strings separately. This meant part of the receiver code never executed - it received the strings I was sending, but discarded them as partial messages. When I sent my first string with the flagpublisher.send(msg, ZMQ.SNDMORE);(and the second without), it worked as I expected.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install jeromq
You can use jeromq 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 jeromq 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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