Merge pull request #125 from Esri/stolstov/jsonenum_fix

don't use JSONObject.getNames for Android

Author: stolstov

src/main/java/com/esri/core/geometry/JSONObjectEnumerator.java

@@ -23,58 +23,58 @@
  */
 package com.esri.core.geometry;
 
-import java.util.ArrayList;
-import org.codehaus.jackson.JsonParser;
-import org.codehaus.jackson.JsonToken;
-import org.json.JSONArray;
 import org.json.JSONObject;
 
+import java.util.Iterator;
+
 final class JSONObjectEnumerator {
 
 	private JSONObject m_jsonObject;
-	private boolean m_bStarted;
-	private int m_currentIndex;
-	private String[] m_keys;
+	private int m_troolean;
+	private Iterator<?> m_keys_iter;
+	private String m_current_key;
 
 	JSONObjectEnumerator(JSONObject jsonObject) {
-		m_bStarted = false;
-		m_currentIndex = -1;
+		m_troolean = 0;
 		m_jsonObject = jsonObject;
 	}
 
 	String getCurrentKey() {
-		if (!m_bStarted) {
-			throw new GeometryException("invalid call");
-		}
-
-		if (m_currentIndex == m_jsonObject.length()) {
+		if (m_troolean != 1) {
 			throw new GeometryException("invalid call");
 		}
 
-		return m_keys[m_currentIndex];
+		return m_current_key;
 	}
 
 	Object getCurrentObject() {
-		if (!m_bStarted) {
+		if (m_troolean != 1) {
 			throw new GeometryException("invalid call");
 		}
 
-		if (m_currentIndex == m_jsonObject.length()) {
-			throw new GeometryException("invalid call");
-		}
-
-		return m_jsonObject.opt(m_keys[m_currentIndex]);
+		return m_jsonObject.opt(m_current_key);
 	}
 
 	boolean next() {
-		if (!m_bStarted) {
-			m_currentIndex = 0;
-			m_keys = JSONObject.getNames(m_jsonObject);
-			m_bStarted = true;
-		} else if (m_currentIndex != m_jsonObject.length()) {
-			m_currentIndex++;
+		if (m_troolean == 0) {
+			if (m_jsonObject.length() > 0) {
+				m_keys_iter = m_jsonObject.keys();
+				m_troolean = 1;//started
+			}
+			else {
+				m_troolean = -1;//stopped
+			}
+		}
+		
+		if (m_troolean == 1) {//still exploring
+			if (m_keys_iter.hasNext()) {
+				m_current_key = (String)m_keys_iter.next();
+			}
+			else {
+				m_troolean = -1; //done
+			}
 		}
 
-		return m_currentIndex != m_jsonObject.length();
+		return m_troolean == 1;
 	}
 }