2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.openecomp.appc.listener.util;
24 import java.io.IOException;
25 import java.util.ArrayList;
26 import java.util.List;
28 import com.fasterxml.jackson.databind.JsonNode;
29 import org.json.JSONObject;
30 import com.att.eelf.configuration.EELFLogger;
31 import com.att.eelf.configuration.EELFManager;
33 import com.fasterxml.jackson.databind.ObjectMapper;
37 private static final EELFLogger LOG = EELFManager.getInstance().getLogger(Mapper.class);
39 private static ObjectMapper mapper = new ObjectMapper();
42 * @return The object mapper that we are using.
44 public static ObjectMapper getMapper() {
49 * Convert a String to a DcaeMessage
52 * The json string to try and parse
53 * @return A DcaeMessage from the json string or null if it could not
55 public static <T> T mapOne(String data, Class<T> cls) {
57 return mapper.readValue(data, cls);
58 } catch (Exception e) {
59 LOG.warn(String.format("Could not map [ %s ] to %s", data, cls.getName()), e);
64 public static <T> List<T> mapList(List<String> data, Class<T> cls) {
65 List<T> out = new ArrayList<T>();
66 for (String s : data) {
67 T tmp = Mapper.mapOne(s, cls);
76 * Convenience method to try and convert objects to json String
79 * The object to try and convert
80 * @return A json string representing the object or null if it could not be converted
82 public static String toJsonString(Object obj) {
85 if (obj instanceof JSONObject) {
86 jsonStr = obj.toString();
88 jsonStr = mapper.writeValueAsString(obj);
91 } catch (Exception e) {
92 LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);
97 public static JSONObject toJsonObject(Object obj) {
100 if (obj.getClass().equals(String.class)) {
101 jsonStr = (String) obj;
103 jsonStr = mapper.writeValueAsString(obj);
105 return new JSONObject(jsonStr);
106 } catch (Exception e) {
107 LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);
111 public static JsonNode toJsonNodeFromJsonString(String jsonStr) {
112 JsonNode jsonNode = null;
113 if(jsonStr != null) {
115 jsonNode = mapper.readTree(jsonStr);
116 } catch (IOException e) {
117 LOG.warn(String.format("Could not map %s to jsonNode.", jsonStr), e);
122 public static JsonNode toJsonNode(Object obj) {
123 JsonNode jsonNode = null;
124 String jsonStr = toJsonString(obj);
125 if(jsonStr != null) {
127 jsonNode = mapper.readTree(jsonStr);
128 } catch (IOException e) {
129 LOG.warn(String.format("Could not map %s to JSONObject.", obj), e);