fix: Fixed ODP Event type and Json Parser log levels (optimizely#495)

## Summary 1. Changed default event type from `client_initialized` to `identified`. 2. Changed Parser log levels from `info` to `debug`. ## Test plan - Manually tested thoroughly. - All existing unit tests and FSC test pass. ## Issues https://jira.sso.episerver.net/browse/FSSDK-8725 https://jira.sso.episerver.net/browse/FSSDK-8726

Author: zashraf1985

core-api/src/main/java/com/optimizely/ab/internal/JsonParserProvider.java

@@ -64,7 +64,7 @@ public static JsonParserProvider getDefaultParser() {
  continue;
  }
 
- logger.info("using json parser: {}", parser.className);
+ logger.debug("using json parser: {}", parser.className);
  return parser;
  }
 

core-api/src/main/java/com/optimizely/ab/odp/ODPEventManager.java

@@ -91,7 +91,7 @@ public void identifyUser(@Nullable String vuid, @Nullable String userId) {
  if (userId != null) {
  identifiers.put(ODPUserKey.FS_USER_ID.getKeyString(), userId);
  }
- ODPEvent event = new ODPEvent("fullstack", "client_initialized", identifiers, null);
+ ODPEvent event = new ODPEvent("fullstack", "identified", identifiers, null);
  sendEvent(event);
  }
 

core-api/src/main/java/com/optimizely/ab/odp/parser/ResponseJsonParserFactory.java

@@ -43,7 +43,7 @@ public static ResponseJsonParser getParser() {
  jsonParser = new JsonSimpleParser();
  break;
  }
- logger.info("Using " + parserProvider.toString() + " parser");
+ logger.debug("Using " + parserProvider.toString() + " parser");
  return jsonParser;
  }
 }

core-api/src/test/java/com/optimizely/ab/odp/ODPEventManagerTest.java

@@ -204,7 +204,7 @@ public void prepareCorrectPayloadForIdentifyUser() throws InterruptedException {
  for (int i = 0; i < events.length(); i++) {
  JSONObject event = events.getJSONObject(i);
  assertEquals("fullstack", event.getString("type"));
- assertEquals("client_initialized", event.getString("action"));
+ assertEquals("identified", event.getString("action"));
  assertEquals("the-vuid-" + i, event.getJSONObject("identifiers").getString("vuid"));
  assertEquals("the-fs-user-id-" + i, event.getJSONObject("identifiers").getString("fs_user_id"));
  assertEquals("sdk", event.getJSONObject("data").getString("data_source_type"));