1 files changed, 83 insertions, 0 deletions
diff --git a/appc-dg/appc-dg-shared/appc-dg-common/src/main/java/org/onap/appc/dg/common/utils/JSONUtil.java b/appc-dg/appc-dg-shared/appc-dg-common/src/main/java/org/onap/appc/dg/common/utils/JSONUtil.java
new file mode 100644
index 000000000..388295a7d
--- /dev/null
+++ b/appc-dg/appc-dg-shared/appc-dg-common/src/main/java/org/onap/appc/dg/common/utils/JSONUtil.java
@@ -0,0 +1,83 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.dg.common.utils;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.util.*;
+
+
+public class JSONUtil {
+
+    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+
+    public static <T> T fromJson(String json, Class<T> clazz) {
+
+        try {
+            return OBJECT_MAPPER.readValue(json, clazz);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> T fromJson(Reader reader, Class<T> clazz) {
+
+        try {
+            return OBJECT_MAPPER.readValue(reader, clazz);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static String toJson(Object object) {
+
+        try {
+            return OBJECT_MAPPER.writeValueAsString(object);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static Map<String,String> extractPlainValues(String json, String ... names) {
+        if (null == names) return Collections.emptyMap();
+        Map<String,String> values = new HashMap<>();
+        try {
+            final JsonNode jsonNode = OBJECT_MAPPER.readTree(json);
+            for (String name : names) {
+                values.put(name, jsonNode.path(name).asText());
+            }
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return values;
+    }
+
+
+
+
+}