1 files changed, 134 insertions, 0 deletions
diff --git a/appc-event-listener/appc-event-listener-bundle/src/main/java/org/openecomp/appc/listener/util/Mapper.java b/appc-event-listener/appc-event-listener-bundle/src/main/java/org/openecomp/appc/listener/util/Mapper.java
new file mode 100644
index 000000000..cdb0d14f0
--- /dev/null
+++ b/appc-event-listener/appc-event-listener-bundle/src/main/java/org/openecomp/appc/listener/util/Mapper.java
@@ -0,0 +1,134 @@
+/*-
+ * ============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.listener.util;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.json.JSONObject;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class Mapper {
+
+    private static final EELFLogger LOG = EELFManager.getInstance().getLogger(Mapper.class);
+
+    private static ObjectMapper mapper = new ObjectMapper();
+
+    /**
+     * @return The object mapper that we are using.
+     */
+    public static ObjectMapper getMapper() {
+        return mapper;
+    }
+
+    /**
+     * Convert a String to a DcaeMessage
+     * 
+     * @param data
+     *            The json string to try and parse
+     * @return A DcaeMessage from the json string or null if it could not
+     */
+    public static <T> T mapOne(String data, Class<T> cls) {
+        try {
+            return mapper.readValue(data, cls);
+        } catch (Exception e) {
+            LOG.warn(String.format("Could not map [ %s ] to %s", data, cls.getName()), e);
+            return null;
+        }
+    }
+
+    public static <T> List<T> mapList(List<String> data, Class<T> cls) {
+        List<T> out = new ArrayList<T>();
+        for (String s : data) {
+            T tmp = Mapper.mapOne(s, cls);
+            if (tmp != null) {
+                out.add(tmp);
+            }
+        }
+        return out;
+    }
+
+    /**
+     * Convenience method to try and convert objects to json String
+     * 
+     * @param obj
+     *            The object to try and convert
+     * @return A json string representing the object or null if it could not be converted
+     */
+    public static String toJsonString(Object obj) {
+        String jsonStr;
+        try {
+            if (obj instanceof JSONObject) {
+                jsonStr = obj.toString();
+            }else {
+                jsonStr = mapper.writeValueAsString(obj);
+            }
+            return jsonStr;
+        } catch (Exception e) {
+            LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);
+            return null;
+        }
+    }
+
+    public static JSONObject toJsonObject(Object obj) {
+        String jsonStr;
+        try {
+            if (obj.getClass().equals(String.class)) {
+                jsonStr = (String) obj;
+            } else {
+                jsonStr = mapper.writeValueAsString(obj);
+            }
+            return new JSONObject(jsonStr);
+        } catch (Exception e) {
+            LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);
+            return null;
+        }
+    }
+    public static JsonNode toJsonNodeFromJsonString(String jsonStr) {
+        JsonNode jsonNode = null;
+        if(jsonStr != null) {
+            try {
+                jsonNode = mapper.readTree(jsonStr);
+            } catch (IOException e) {
+                LOG.warn(String.format("Could not map %s to jsonNode.", jsonStr), e);
+            }
+        }
+        return jsonNode;
+    }
+    public static JsonNode toJsonNode(Object obj) {
+        JsonNode jsonNode = null;
+        String jsonStr = toJsonString(obj);
+        if(jsonStr != null) {
+            try {
+                jsonNode = mapper.readTree(jsonStr);
+            } catch (IOException e) {
+                LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);
+            }
+        }
+        return jsonNode;
+    }
+}