Adding Config and ConfigParser classes

modules/swagger-codegen/src/main/java/config/ConfigParser.java

@@ -0,0 +1,46 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package config;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.File;
+import java.util.Iterator;
+import java.util.Map;
+
+public class ConfigParser {
+
+  public static Config read(String location) {
+
+    System.out.println("reading cofig from " + location);
+
+    ObjectMapper mapper = new ObjectMapper();
+    
+    Config config = new Config();
+    
+    try {
+      JsonNode rootNode = mapper.readTree(new File(location));
+      Iterator<Map.Entry<String, JsonNode>> optionNodes = rootNode.fields();
+      
+      while (optionNodes.hasNext()) {
+        Map.Entry<String, JsonNode> optionNode = (Map.Entry<String, JsonNode>) optionNodes.next();
+        
+        if(optionNode.getValue().isValueNode()){
+          config.setOption(optionNode.getKey(), optionNode.getValue().asText());
+        }
+        else{
+          System.out.println("omitting non-value node " + optionNode.getKey());
+        }
+      }
+    }
+    catch (Exception e) {
+      System.out.println(e.getMessage());
+      return null;
+    }
+    
+    return config;
+  }
+}