CC-1523: YAML-JSON conversion

src/core/operations/JSONToYAML.mjs

@@ -0,0 +1,48 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import YAML from 'yaml'
+import Operation from "../Operation.mjs";
+import OperationError from "../errors/OperationError.mjs";
+
+/**
+ * JSON to YAML operation
+ */
+class JSONToYAML extends Operation {
+
+    /**
+     * JSONToYAML constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "JSON to YAML";
+        this.module = "Default";
+        this.description = "Converts JSON data to a YAML.";
+        this.infoURL = "https://yaml.org/spec/1.2.2/";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {JSON} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const doc = new YAML.Document();
+        try {
+            doc.contents = JSON.parse(input.replace(/(\w+):/gm, `"$1":`));
+            return doc.toString()
+        } catch (err) {
+            throw new OperationError("Unable to parse JSON to YAML: " + err.toString());
+        }
+    }
+
+}
+
+export default JSONToYAML;