1 files changed, 44 insertions, 0 deletions
diff --git a/appc-common/src/main/java/org/openecomp/appc/util/JsonUtil.java b/appc-common/src/main/java/org/openecomp/appc/util/JsonUtil.java
new file mode 100644
index 000000000..6c5623da1
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+++ b/appc-common/src/main/java/org/openecomp/appc/util/JsonUtil.java
@@ -0,0 +1,44 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : APP-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. 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.openecomp.appc.util;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.IOException;
+import java.util.Map;
+
+
+public class JsonUtil {
+    /**
+     * @param valueAsString a valid json Map represented as String
+     * @return a flat map that each entry key derived from hierarchy path in the json object and flatted to a dotted separated string.
+     *   e.g. "{\"A\":\"A-value\",\"B\":{\"C\":\"B.C-value\",\"D\":\"B.D-value\"}}"; will be represented as {A=A-value, B.C=B.C-value, B.D=B.D-value}
+     *   when it required that the input will not be flatted the json string should be formatted as below example:
+     *   e.g. "{\"A\":\"A-value\",\"B\":\"{\\\"C\\\":\\\"C-value\\\",\\\"D\\\":\\\"D-value\\\"}\"}" will be represented as {A=A-value, B={"C":"C-value","D":"D-value"}}
+     * @throws IOException when the object is not valid json Map
+     */
+    public static Map<String, String> convertJsonStringToFlatMap(String valueAsString) throws IOException {
+        ObjectMapper objectMapper = new ObjectMapper();
+        Map readValueMap = objectMapper.readValue(valueAsString,Map.class);
+        return org.openecomp.appc.util.ObjectMapper.map(readValueMap);
+    }
+}