MultiDimension JSON Array Parser

[ccsdk/sli/plugins.git] / restapi-call-node / provider / src / main / java / org / onap / ccsdk / sli / plugins / restapicall / JsonParser.java

diff --git a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
index 189ddde..60d43df 100644 (file)
--- a/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
+++ b/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/JsonParser.java
@@ -8,9 +8,9 @@
  * 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.
@@ -21,13 +21,11 @@
 
 package org.onap.ccsdk.sli.plugins.restapicall;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
-
+import org.apache.commons.lang3.StringUtils;
 import org.codehaus.jettison.json.JSONArray;
 import org.codehaus.jettison.json.JSONException;
 import org.codehaus.jettison.json.JSONObject;
@@ -35,6 +33,8 @@ import org.onap.ccsdk.sli.core.sli.SvcLogicException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 public final class JsonParser {
 
     private static final Logger log = LoggerFactory.getLogger(JsonParser.class);
@@ -43,28 +43,76 @@ public final class JsonParser {
         // Preventing instantiation of the same.
     }
 
+
+    private static void handleJsonArray(String key, Map<String, Object> jArrayMap, JSONArray jsonArr) throws JSONException {
+        JSONObject jsonObj;
+        JSONArray subJsonArr;
+        boolean stripKey = false;
+
+        for (int i = 0, length = jsonArr.length(); i < length; i++) {
+            if (stripKey)
+                key = key.substring(0, key.length()-3);
+
+            subJsonArr = jsonArr.optJSONArray(i);
+            if (subJsonArr != null) {
+                key = StringUtils.trimToEmpty(key) + "[" + i + "]";
+                jArrayMap.putIfAbsent(key + "_length", String.valueOf(subJsonArr.length()));
+                handleJsonArray(key, jArrayMap, subJsonArr);
+                stripKey = true;
+                continue;
+            }
+
+            jsonObj = jsonArr.optJSONObject(i);
+            if (jsonObj != null) {
+                Iterator<String> ii = jsonObj.keys();
+                while (ii.hasNext()) {
+                    String nodeKey = ii.next();
+                    String key1 = "[" + i + "]." + nodeKey;
+                    String[] subKey = key1.split(":");
+                    if (subKey.length == 2) {
+                        jArrayMap.putIfAbsent(subKey[1], jsonObj.get(nodeKey));
+                    } else {
+                        jArrayMap.putIfAbsent(key1, jsonObj.get(nodeKey));
+                    }
+                }
+            }
+            else {
+                jArrayMap.putIfAbsent(StringUtils.trimToEmpty(key), jsonArr);
+                break;
+            }
+        }
+    }
+
     @SuppressWarnings("unchecked")
     public static Map<String, String> convertToProperties(String s)
-        throws SvcLogicException {
+            throws SvcLogicException {
 
         checkNotNull(s, "Input should not be null.");
 
         try {
-            JSONObject json = new JSONObject(s);
             Map<String, Object> wm = new HashMap<>();
-            Iterator<String> ii = json.keys();
-            while (ii.hasNext()) {
-                String key1 = ii.next();
-                String[] subKey = key1.split(":");
-                if (subKey.length == 2) {
-                    wm.put(subKey[1], json.get(key1));
-                } else {
-                    wm.put(key1, json.get(key1));
+            JSONObject json;
+            JSONArray jsonArr;
+            //support top level list in json response
+            if (s.startsWith("[")) {
+                jsonArr = new JSONArray(s);
+                wm.put("_length", String.valueOf(jsonArr.length()));
+                handleJsonArray(null, wm, jsonArr);
+            } else {
+                json = new JSONObject(s);
+                Iterator<String> ii = json.keys();
+                while (ii.hasNext()) {
+                    String key1 = ii.next();
+                    String[] subKey = key1.split(":");
+                    if (subKey.length == 2) {
+                        wm.put(subKey[1], json.get(key1));
+                    } else {
+                        wm.put(key1, json.get(key1));
+                    }
                 }
             }
 
             Map<String, String> mm = new HashMap<>();
-
             while (!wm.isEmpty()) {
                 for (String key : new ArrayList<>(wm.keySet())) {
                     Object o = wm.get(key);
@@ -72,7 +120,6 @@ public final class JsonParser {
 
                     if (o instanceof Boolean || o instanceof Number || o instanceof String) {
                         mm.put(key, o.toString());
-
                         log.info("Added property: {} : {}", key, o.toString());
                     } else if (o instanceof JSONObject) {
                         JSONObject jo = (JSONObject) o;
@@ -89,8 +136,7 @@ public final class JsonParser {
                     } else if (o instanceof JSONArray) {
                         JSONArray ja = (JSONArray) o;
                         mm.put(key + "_length", String.valueOf(ja.length()));
-
-                        log.info("Added property: {}_length: {}", key, String.valueOf(ja.length()));
+                        log.info("Added property: {}_length: {}", key, ja.length());
 
                         for (int i = 0; i < ja.length(); i++) {
                             wm.put(key + '[' + i + ']', ja.get(i));
@@ -103,4 +149,5 @@ public final class JsonParser {
             throw new SvcLogicException("Unable to convert JSON to properties" + e.getLocalizedMessage(), e);
         }
     }
+
 }