diff options
Diffstat (limited to 'src/main/java/org/onap/dcae/common/DataChangeEventListener.java')
-rwxr-xr-x | src/main/java/org/onap/dcae/common/DataChangeEventListener.java | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/org/onap/dcae/common/DataChangeEventListener.java b/src/main/java/org/onap/dcae/common/DataChangeEventListener.java new file mode 100755 index 0000000..6e13f73 --- /dev/null +++ b/src/main/java/org/onap/dcae/common/DataChangeEventListener.java @@ -0,0 +1,86 @@ +/*- + * ============LICENSE_START======================================================= + * org.onap.dcaegen2.collectors.restconf + * ================================================================================ + * Copyright (C) 2018-2019 Huawei. 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.onap.dcae.common; + +import org.glassfish.jersey.media.sse.EventListener; +import org.glassfish.jersey.media.sse.InboundEvent; +import org.json.JSONArray; +import org.json.JSONException; +import org.json.JSONObject; +import org.onap.dcae.RestConfCollector; +import org.onap.dcae.controller.PersistentEventConnection; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class DataChangeEventListener implements EventListener { + private static final Logger log = LoggerFactory.getLogger(DataChangeEventListener.class); + private PersistentEventConnection conn; + + public DataChangeEventListener(PersistentEventConnection conn) { + this.conn = conn; + } + + @Override + public void onEvent(InboundEvent event) { + try { + log.info("SSE Event is received"); + String s = event.readData(); + jsonType type = isJSONValid(s); + if (type == jsonType.OBJECT) { + JSONObject jsonObj = new JSONObject(s); + EventData ev = new EventData(this.conn, jsonObj); + log.info("SSE Event in json " + jsonObj.toString()); + RestConfCollector.handleEvents(ev); + } else if (type == jsonType.ARRAY) { + JSONArray jsonArr = new JSONArray(s); + for (int j = 0; j < jsonArr.length(); j++) { + JSONObject jsonObj = jsonArr.getJSONObject(j); + EventData ev = new EventData(this.conn, jsonObj); + log.info("SSE Event in json " + jsonObj.toString()); + RestConfCollector.handleEvents(ev); + } + } else { + log.info("Received heart beat "); + } + } catch (Exception e) { + e.printStackTrace(); + } + } + + private enum jsonType { + OBJECT, ARRAY, NONE; + } + + public jsonType isJSONValid(String test) { + try { + new JSONObject(test); + log.info("Received a Json object"); + } catch (JSONException ex) { + try { + new JSONArray(test); + return jsonType.ARRAY; + } catch (JSONException ex1) { + return jsonType.NONE; + } + } + return jsonType.OBJECT; + } +} |