[CCSDK-28] populated the seed code for dgbuilder

[ccsdk/distribution.git] / dgbuilder / core_nodes / parsers / 70-XML.js

diff --git a/dgbuilder/core_nodes/parsers/70-XML.js b/dgbuilder/core_nodes/parsers/70-XML.js
new file mode 100644 (file)
index 0000000..931de7f
--- /dev/null
+++ b/dgbuilder/core_nodes/parsers/70-XML.js
@@ -0,0 +1,46 @@
+/**
+ * Copyright 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+module.exports = function(RED) {
+    "use strict";
+    var xml2js = require('xml2js');
+    var parseString = xml2js.parseString;
+    var builder = new xml2js.Builder({renderOpts:{pretty:false}});
+
+    function XMLNode(n) {
+        RED.nodes.createNode(this,n);
+        var node = this;
+        this.on("input", function(msg) {
+            if (msg.hasOwnProperty("payload")) {
+                if (typeof msg.payload == "object") {
+                    msg.payload = builder.buildObject(msg.payload);
+                    node.send(msg);
+                }
+                else if (typeof msg.payload == "string") {
+                    parseString(msg.payload, {strict:true,async:true}, function (err, result) {
+                        if (err) { node.error(err); }
+                        else {
+                            msg.payload = result;
+                            node.send(msg);
+                        }
+                    });
+                }
+                else { node.log("This node only handles xml strings or js objects."); }
+            }
+        });
+    }
+    RED.nodes.registerType("xml",XMLNode);
+}