NCMP : Handle non-existing and non-ready cm handles

- Modified data operation schema to contains cm handle as steing and
  response content field name as result.
- Added a new common cloud event builder for NCMP to create an event.
- Added data operation event creater that uses cloud event builder to
  create a cloud event.
- Introduced a new method onto json object mapper to convert json object
  to bytes.
- Modified EventDateTimeFormatter and added a new method to convert date timestamp into offsetdateTime.
- Added a new code into ResourceRequestUtil to identify non-ready cm
  handle and non-existing cm handle and later publish it as cloud event
  to tha client given topic.
- Introduced CpsApplicationContext to get spring mannaged bean into non
  spring managed java object.

Issue-ID: CPS-1583, CPS-1614

Signed-off-by: sourabh_sourabh <sourabh.sourabh@est.tech>
Change-Id: I24a39d2cb2c54dea25cd2f17e7748e21cd83a088
Signed-off-by: sourabh_sourabh <sourabh.sourabh@est.tech>

2 files changed, 21 insertions, 3 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/utils/JsonObjectMapper.java b/cps-service/src/main/java/org/onap/cps/utils/JsonObjectMapper.java
index 338a841a7a..60a6e16fe7 100644
--- a/cps-service/src/main/java/org/onap/cps/utils/JsonObjectMapper.java
+++ b/cps-service/src/main/java/org/onap/cps/utils/JsonObjectMapper.java
@@ -90,6 +90,22 @@ public class JsonObjectMapper {
     }
 
     /**
+     * Serializing generic json object to bytes using Jackson.
+     *
+     * @param jsonObject any json object value
+     * @return the generated JSON as a byte array.
+     */
+    public byte[] asJsonBytes(final Object jsonObject) {
+        try {
+            return objectMapper.writeValueAsBytes(jsonObject);
+        } catch (final JsonProcessingException jsonProcessingException) {
+            log.error("Parsing error occurred while converting JSON object to bytes.");
+            throw new DataValidationException("Parsing error occurred while converting given JSON object to bytes.",
+                    jsonProcessingException.getMessage());
+        }
+    }
+
+    /**
      * Deserialize JSON content from given JSON content String to JsonNode.
      *
      * @param jsonContent   JSON content
diff --git a/cps-service/src/test/groovy/org/onap/cps/utils/JsonObjectMapperSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/utils/JsonObjectMapperSpec.groovy
index b70c437953..2332282e2b 100644
--- a/cps-service/src/test/groovy/org/onap/cps/utils/JsonObjectMapperSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/utils/JsonObjectMapperSpec.groovy
@@ -33,15 +33,17 @@ class JsonObjectMapperSpec extends Specification {
     def spiedObjectMapper = Spy(ObjectMapper)
     def jsonObjectMapper = new JsonObjectMapper(spiedObjectMapper)
 
-    def 'Map a structured object to json String.'() {
+    def 'Map a structured object to json #type.'() {
         given: 'an object model'
             def object = spiedObjectMapper.readValue(TestUtils.getResourceFileContent('bookstore.json'), Object)
         when: 'the object is mapped to string'
-            def content = jsonObjectMapper.asJsonString(object);
+            def content = type == 'String' ? jsonObjectMapper.asJsonString(object) : jsonObjectMapper.asJsonBytes(object)
         then: 'the result is a valid json string (can be parsed)'
-            def contentMap = new JsonSlurper().parseText(content)
+            def contentMap = new JsonSlurper().parseText(new String(content))
         and: 'the parsed content is as expected'
             assert contentMap.'test:bookstore'.'bookstore-name' == 'Chapters/Easons'
+        where: 'the following data stores are used'
+            type << ['String', 'bytes']
     }
 
     def 'Map a structured object to json String error.'() {