NTREE_DATA is a topic too

1) a way to determine this is your team's format of xml
2) an algorithm to convert xml nodes to metamaps objects
3) define interface (maybe just Metamaps.Import.handleXML from javascript console for now)

frontend/src/Metamaps/Import.js

@@ -70,6 +70,11 @@ const Import = {
     Import.handle(results)
   },
 
+  handleXML: function(text) {
+    const results = XMLParser.parseSchema(text)
+    Import.handle(results)
+  },
+
   handle: function(results) {
     var self = Import
     var topics = results.topics.map(topic => self.normalizeKeys(topic))

frontend/src/Metamaps/XMLParser.js

@@ -0,0 +1,18 @@
+import parseXML from 'xml-parser'
+
+const XMLParser = {
+  parseSchema = (text) => {
+    // see format of data at https://www.npmjs.com/package/xml-parser
+    const data = parseXML(text)
+
+    // TODO algorithm to transform `data` to `returnValue`
+
+    // TODO this is the output format, but we still need to fill it in with real data
+    const returnValue = {
+      topics: [],
+      synapses: []
+    }
+  }
+}
+
+export default XMLParser

frontend/test/Metamaps/XMLParser.spec.js

@@ -0,0 +1,51 @@
+/* global describe, it */
+
+import { expect } from 'chai'
+import outdent from 'outdent'
+
+import XMLParser from '../../src/MetamapsXMLParser'
+
+describe('Metamaps.XMLParser.js', function() {
+  describe('parseSchema', function() {
+    it('View:Projection nodes', function() {
+      const xml = outdent`
+      <?xml version="1.0" encoding="UTF-8"?>
+      <View:ColumnView name="ZPalletToBoxes">
+        <viewNode xsi:type="View:Projection" name="NTREE_DATA">
+          <element name="MANDT">
+            <inlineType primitiveType="NVARCHAR" length="3" precision="3" scale="0"/>
+          </element>
+        </viewNode>
+      </View:ColumnView>`
+
+      { topics, synapses } = XMLParser.parseSchema(xml)
+
+      expect(topics[0].name).to.equal("NTREE_DATA")
+      expect(topics[0].metacode).to.equal("Activity")
+
+      expect(topics[1].name).to.equal("MANDT")
+      expect(topics[1].metacode).to.equal("Wildcard")
+
+      expect(synapses.length).to.equal(0)
+    })
+
+    it('lays nodes out correctly', function() {
+      const xml = outdent`
+      <?xml version="1.0" encoding="UTF-8"?>
+      <View:ColumnView name="ZPalletToBoxes">
+        <viewNode xsi:type="View:Projection" name="NTREE_DATA">
+          <element name="MANDT">
+            <inlineType primitiveType="NVARCHAR" length="3" precision="3" scale="0"/>
+          </element>
+          <layout xCoordinate="176" yCoordinate="569" width="-1" height="-1" expanded="true"/>
+        </viewNode>
+      </View:ColumnView>`
+      { topics, synapses } = XMLParser.parseSchema(xml)
+
+      expect(topics[0].x).to.equal(176)
+      expect(topics[0].y).to.equal(569)
+      expect(topics[1].x).to.equal(176 + 20)
+      expect(topics[1].y).to.equal(569)
+    })
+  })
+})

package.json

@@ -52,7 +52,8 @@
     "riek": "1.0.7",
     "simplewebrtc": "2.2.2",
     "socket.io": "1.3.7",
-    "webpack": "2.2.1"
+    "webpack": "2.2.1",
+    "xml-parser": "1.2.1"
   },
   "devDependencies": {
     "babel-eslint": "^7.1.1",