zen-engine 0.55.0

Business rules engine
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

use crate::decision_graph::cleaner::VariableCleaner;
use crate::nodes::definition::NodeHandler;
use crate::nodes::result::NodeResult;
use crate::nodes::NodeContext;
use zen_types::decision::OutputNodeContent;
use zen_types::variable::Variable;

#[derive(Debug, Clone)]
pub struct OutputNodeHandler;

pub type OutputNodeData = OutputNodeContent;
pub type OutputNodeTrace = Variable;

impl NodeHandler for OutputNodeHandler {
    type NodeData = OutputNodeData;
    type TraceData = OutputNodeTrace;

    async fn handle(&self, ctx: NodeContext<Self::NodeData, Self::TraceData>) -> NodeResult {
        if let Some(json_schema) = &ctx.node.schema {
            let input_json = VariableCleaner::new().clone_clean(&ctx.input).to_value();
            ctx.validate(json_schema, &input_json)?;
        };

        ctx.success(ctx.input.clone())
    }
}