kandi X-RAY | Message-Bus Summary
kandi X-RAY | Message-Bus Summary
Top functions reviewed by kandi - BETA
- Reads the message data
- Returns the enum type with the given integer value
- Returns a string representation of this object
- Read the serialized message
- Attempts to acknowledge ack with the given ID
- Acknowledge ack to the consumer
- Nack on ack ID
- Reads a UTF - 8 string
- Reads bytes into a byte array
- Starts the producer example
- Stops the consumer
- Main entry point
- Send keepalive
- Retrieves a message from the consumer
- Sets the value for the given field
- Sets the given field to the given value
- Entry point for testing
- Main method for testing
- Command line
- Writes a string to the buffer
- Starts consumer
- Sort by message
- Write the message to the output stream
- Compare this MessagePayload
- Entry point for testing
Message-Bus Key Features
Message-Bus Examples and Code Snippets
Trending Discussions on Message-Bus
On release 8.1.1 I am trying to experiment with the simple web agent.
Running through the setup process...
ANSWERAnswered 2021-Sep-29 at 16:12
I was able to reproduce this when I ran through vcfg and specified https, but then did what you did and passed the bind-web-address to the volttron command itself.
However, you shouldn't do this. The instructions assume you haven't gone through the vcfg process and therefore you would have to specify the bind web address on the command line.
Since you went through the vcfg process your config file (~/.volttron/config) will have your hostname:port as the bind-web-address. If it has https in it that is the reason it is not working for you.
I've got this configuration...
ANSWERAnswered 2021-May-18 at 19:16
Your config should include a vip-address in it.
AFAIK, the main contribution of C4 model is "agreement" on simple abstraction that brings diagrams and documentation closer to developers. In the same C4 is more about advice, and you have to figure out some stuff by yourself (which breaks an "agreement" with custom abstractions again).
What should I do in case C4 lacks details? Till which degree I should customize it?
- How supporting diagrams like Infrastructure, Data Flow or Business process fit into C4?
For example, are routers/firewalls/api-gateways/service-buses a C4's Containers at Infrastructure diagram? I couldn't find any example.
- Is that a good idea to extend C4's levels?
C4 model has only 4 level (isn't recursive). What if I need the 5th subsystem level.
- Should "Database Container" at container diagram (level 2) contain information about about database name, schema name or database technology?
From examples, doesn't contain, ro does contain.
- Is that possible to find C4 examples besides trivial from the official doc?
ANSWERAnswered 2021-Mar-15 at 20:23
C4 model aims for simplicity. It eases early architectural work, at a moment when many details are still uncertain. It facilitates team discussion with people who are not all familiar with all the subtleties of the UML notation.(1)
It does not intend to be a general diagramming technique for everything. So no, there is no business process modelling. The context level diagram provides some more information as use case-diagrams about what the user exchanges with the system. But it stops there. There's still a market for BPMN (or for UML activity diagrams which were demonstrated to be as expressive as a BPMN).
It does not either intend to replace infrastructure diagramming or hardware design. It specifically aims at the needs of software intensive systems: what software runs where and how. UML deployment diagrams are not dead if details are needed. This being said, I think it's easy to add some boxes to represent firewalls, as if they were software elements, if it is needed to understand the architecture. And API gateways definitively get to the C4 picture (in a style similar to this example).(2)
C4 level 3 is the component. The 4th level allows you to use any existing modelling notation to show more details. There is no need to reinvent the wheel. If the component is still very complex, you may use the full power of UML and its recursively to go as deeper as needed (and if needed only).(3)
It's as needed. You may probably begin your architecture, just identifying that a database is needed. But maybe later, you'd have several schemas in the environment and you need to disambiguate. Or just want to document the name.(4)
Certainly, but this is out of scope here.
Update: check out the example at the bottom
I need to message between classes. The publisher will loop indefinitely, call some method to get data, and then pass the result of that call into
OnNext. There can be many subscribers, but there should only ever be one IObservable, and one long-running task. Here is an implementation.
ANSWERAnswered 2020-Oct-25 at 03:20
- Cold are sequences that are passive and start producing notifications on request (when subscribed to).
- Hot are sequences that are active and produce notifications regardless of subscriptions.
What you want is a hot observable, and the problem is that the
Observable.Create method creates cold observables. But you can make any observable hot by using the
Publish operator. This operator provides a way to have a single underlying subscription shared by multiple independent observers. Example:
I need to parse some YAML in C++ (sort of newish to YAML). I'm looking to use yaml-cpp. My objectives are:
- To create some generic/reusable utility functions to help parsing of this YAML.
- To be able to update a YAML::Node and/or add missing values (by specifying default values)
If I take some example YAML, it might appear as:...
ANSWERAnswered 2020-Jan-31 at 23:04
YAML::Node is a reference type already, so returning it from a function doesn’t make a deep copy. It’s also mutable, so you can just edit it and the change will update the root node.
No vulnerabilities reported
You can use Message-Bus 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 Message-Bus 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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