1 files changed, 92 insertions, 0 deletions
diff --git a/src/main/java/org/onap/dcae/collectors/restconf/common/JsonParser.java b/src/main/java/org/onap/dcae/collectors/restconf/common/JsonParser.java
new file mode 100755
index 0000000..f29bbc3
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+++ b/src/main/java/org/onap/dcae/collectors/restconf/common/JsonParser.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.collectors.restconf
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dcae.collectors.restconf.common;
+
+import org.codehaus.jettison.json.JSONArray;
+import org.codehaus.jettison.json.JSONException;
+import org.codehaus.jettison.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+public class JsonParser {
+
+    private static final Logger log = LoggerFactory.getLogger(JsonParser.class);
+
+    private JsonParser() {
+        // Preventing instantiation of the same.
+    }
+
+    @SuppressWarnings("unchecked")
+    public static Map<String, String> convertToProperties(String s)
+            throws Exception {
+
+        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();
+                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);
+                    wm.remove(key);
+
+                    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;
+                        Iterator<String> i = jo.keys();
+                        while (i.hasNext()) {
+                            String key1 = i.next();
+                            wm.put(key + "." + key1, jo.get(key1));
+                        }
+                    } 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()));
+
+                        for (int i = 0; i < ja.length(); i++)
+                            wm.put(key + '[' + i + ']', ja.get(i));
+                    }
+                }
+            return mm;
+        } catch (JSONException e) {
+            throw new Exception("Unable to convert JSON to properties" + e.getLocalizedMessage(), e);
+        }
+    }
+}