Allow 0 and off values as input-parameter in Interpolation Plugin

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,11 +4,8 @@
 - [ ] Bug fix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to change)
-- [ ] My code follows the code style of this project.
-- [ ] My change requires a change to the documentation.
 - [ ] I have updated the documentation accordingly.
 - [ ] I have added tests to cover my changes.
-- [ ] All new and existing tests passed.
 
 
 ### A description of the changes proposed in the Pull Request

manifests/examples/builtins/interpolation/success-with-off.yml

@@ -0,0 +1,24 @@
+name: interpolation-demo
+description: simple demo of interpolation plugin
+tags:
+initialize:
+  plugins:
+    interpolation:
+      method: Interpolation
+      path: "builtin"
+      config:
+        method: linear
+        x: [0, 10, 50, 100]
+        y: [0.12, 0.32, 0.75, 1.02]
+        input-parameter: "cpu/utilization"
+        output-parameter: "result"
+tree:
+  children:
+    child:
+      pipeline:
+        compute:
+          - interpolation
+      inputs:
+        - timestamp: 2023-07-06T00:00
+          duration: 3600
+          cpu/utilization: off

package.json

@@ -20,7 +20,7 @@
   "dependencies": {
     "@commitlint/cli": "^18.6.0",
     "@commitlint/config-conventional": "^18.6.0",
-    "@grnsft/if-core": "^0.0.25",
+    "@grnsft/if-core": "^0.0.26",
     "axios": "^1.7.2",
     "csv-parse": "^5.5.6",
     "csv-stringify": "^6.4.6",

src/__tests__/if-run/builtins/interpolation.test.ts

@@ -55,6 +55,49 @@ describe('builtins/interpolation: ', () => {
         expect(result).toEqual(outputs);
       });
 
+      it('returns valid output parameter if input parameter is 0.', async () => {
+        const inputs = [
+          {
+            timestamp: '2023-07-06T00:00',
+            duration: 3600,
+            'cpu/utilization': 0,
+          },
+        ];
+        const outputs = [
+          {
+            timestamp: '2023-07-06T00:00',
+            duration: 3600,
+            'cpu/utilization': 0,
+            'interpolation-result': 0.12,
+          },
+        ];
+
+        const result = await plugin.execute(inputs);
+
+        expect(result).toEqual(outputs);
+      });
+
+      it('returns no output parameter if input parameter is `off`.', async () => {
+        const inputs = [
+          {
+            timestamp: '2023-07-06T00:00',
+            duration: 3600,
+            'cpu/utilization': 'off',
+          },
+        ];
+        const outputs = [
+          {
+            timestamp: '2023-07-06T00:00',
+            duration: 3600,
+            'cpu/utilization': 0,
+          },
+        ];
+
+        const result = await plugin.execute(inputs);
+
+        expect(result).toEqual(outputs);
+      });
+
       it('returns result when `mapping` has valid data.', async () => {
         const mapping = {
           'cpu/utilization': 'cpu/util',

src/if-run/builtins/interpolation/README.md

@@ -62,7 +62,7 @@ The plugin expects the following input parameters:
 
 - `timestamp`: a timestamp for the input (required)
 - `duration`: the amount of time, in seconds, that the input covers. (required)
-- `[input-parameter]` - a field whose name matches the string provided to input-parameter in config (i.e. if the input-parameter in config is cpu/utilisation then cpu-utilisation must exist in the input data)
+- `[input-parameter]` - a field whose name matches the string provided to input-parameter in config (i.e. if the input-parameter in config is cpu/utilisation then cpu-utilisation must exist in the input data). Value can be greater or equal to 0. For modeling server which totally turned off, `off` value can be used.
 
 ## Output
 

src/if-run/builtins/interpolation/index.ts

@@ -54,12 +54,13 @@ export const Interpolation = PluginFactory({
       .object({
         timestamp: z.string().or(z.date()),
         duration: z.number(),
-        [inputParameter]: z.number().gt(0),
+        [inputParameter]: z.number().gte(0).or(z.literal('off')),
       })
       .refine(
         data =>
-          data[inputParameter] >= config.x[0] &&
-          data[inputParameter] <= config.x[config.x.length - 1],
+          (data[inputParameter] >= config.x[0] &&
+            data[inputParameter] <= config.x[config.x.length - 1]) ||
+          data[inputParameter] === 'off',
         {
           message: WITHIN_THE_RANGE,
         }
@@ -68,14 +69,22 @@ export const Interpolation = PluginFactory({
     return validate<z.infer<typeof schema>>(schema, input, index);
   },
   implementation: async (inputs: PluginParams[], config: ConfigParams) => {
-    const {'output-parameter': outputParameter} = config;
+    const {
+      'input-parameter': inputParameter,
+      'output-parameter': outputParameter,
+    } = config;
 
     return inputs.map(input => {
-      const calculatedResult = calculateResult(config, input);
+      if (input[inputParameter] === 'off') {
+        return {
+          ...input,
+          [inputParameter]: 0,
+        };
+      }
 
       return {
         ...input,
-        [outputParameter]: calculatedResult,
+        [outputParameter]: calculateResult(config, input),
       };
     });
   },
@@ -169,7 +178,8 @@ const getPolynomialInterpolation = (
   return result;
 };
 
+/**
+ * Sorts given point items in ascending order.
+ */
 const sortPoints = (items: number[]) =>
-  items.sort((a: number, b: number) => {
-    return a - b;
-  });
+  items.sort((a: number, b: number) => a - b);

src/if-run/lib/compute.ts

@@ -99,8 +99,8 @@ const computeNode = async (node: Node, params: ComputeParams): Promise<any> => {
     });
   }
 
-  let inputStorage = structuredClone(node.inputs) as PluginParams[];
-  inputStorage = mergeDefaults(inputStorage, defaults);
+  let outputStorage = structuredClone(node.inputs) as PluginParams[];
+  outputStorage = mergeDefaults(outputStorage, defaults);
   const pipelineCopy = structuredClone(pipeline) || {};
 
   /** Checks if pipeline is not an array or empty object. */
@@ -125,8 +125,8 @@ const computeNode = async (node: Node, params: ComputeParams): Promise<any> => {
       const plugin = params.pluginStorage.get(pluginName);
       const nodeConfig = config && config[pluginName];
 
-      inputStorage = await plugin.execute(inputStorage, nodeConfig);
-      node.inputs = inputStorage;
+      outputStorage = await plugin.execute(outputStorage, nodeConfig);
+      node.inputs = outputStorage;
 
       if (params.context.explainer) {
         addExplainData({
@@ -145,7 +145,7 @@ const computeNode = async (node: Node, params: ComputeParams): Promise<any> => {
     const originalOutputs = params.append ? node.outputs || [] : [];
 
     node.children = Regroup(
-      inputStorage,
+      outputStorage,
       originalOutputs,
       pipelineCopy.regroup
     );
@@ -183,10 +183,12 @@ const computeNode = async (node: Node, params: ComputeParams): Promise<any> => {
       console.debug(COMPUTING_PIPELINE_FOR_NODE(pluginName));
       debugLogger.setExecutingPluginName(pluginName);
 
-      inputStorage = await plugin.execute(inputStorage, nodeConfig);
+      console.log(outputStorage);
+      outputStorage = await plugin.execute(outputStorage, nodeConfig);
+      console.log(outputStorage);
       debugLogger.setExecutingPluginName();
 
-      node.outputs = inputStorage;
+      node.outputs = outputStorage;
 
       if (params.context.explainer) {
         addExplainData({