Dependency

LiteFlow supports placing the configuration in the zk cluster, based on the zk notification mechanism, LiteFlow supports real-time modification of the process

If you need to use zk, you need to add the following additional dependency:

<dependency>
    <groupId>com.yomahub</groupId>
    <artifactId>liteflow-rule-zk</artifactId>
    <version>2.9.3</version>
</dependency>

Configuration

You don't need to configure the liteflow.ruleSource path anymore.

Just configure the extra parameters of the plugin:

liteflow.rule-source-ext-data={\
    "connectStr":"127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183",\
    "nodePath":"/liteflow/rule"\
}

liteflow:
  rule-source-ext-data-map:
    connectStr: 127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
    nodePath: /liteflow/rule

// Make sure to add code blocks to your code group

Configuration instructions

Configuration Item	Description
connectStr	The connection string of zk, which can be a cluster
chainPath	Your rule directory node (there will be many rules below, one node per rule)
scriptPath	Your script directory node (there will be many scripts below, one node per script)

Description of stored data

In ZK, suppose your chainPath is: /liteflow/chain

Then each node under this path is a rule, the key of the node is chainId, and the value is simple EL (THEN(a,b,c)), for example:

/liteflow/chain

---chain1

---chain2

For the script path, suppose your scriptPath is: /liteflow/script

Then each node under this path is a script component. The key of the node has a fixed format: script component ID:script type:script name, and the value is the script data, for example:

/liteflow/script

---s1:script:script component s1

---s2:script:script component s2

About the script type, you can refer to the section Defining Script Components.

Auto Refresh

Any rule changes in the zk node will be automatically pushed to the business system for real-time smooth hot refresh. You don't need to do anything.

Example

In order to make it easy for everyone to get started with the configuration of the ZK rule, here is a small demo that you can pull to run locally, you need to replace the ZK configuration information.

Before running the project, read the readme.txt file in the project.

https://github.com/bryan31/liteflow-ext-rule-demo