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/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* 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.onap.dcae.commonFunction;
import java.io.FileReader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.clock.SaClock;
import com.att.nsa.logging.LoggingContext;
import com.att.nsa.logging.log4j.EcompFields;
import com.google.gson.JsonArray;
import com.google.gson.JsonParser;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.TimeZone;
import java.util.UUID;
import org.json.JSONArray;
import org.json.JSONObject;
public class EventProcessor implements Runnable {
private static final Logger log = LoggerFactory.getLogger(EventProcessor.class);
private static HashMap<String, String[]> streamid_hash = new HashMap<String, String[]>();
private JSONObject event = null;
public EventProcessor() {
log.debug("EventProcessor: Default Constructor");
String list[] = CommonStartup.streamid.split("\\|");
for (int i = 0; i < list.length; i++) {
String domain = list[i].split("=")[0];
//String streamIdList[] = list[i].split("=")[1].split(",");
String streamIdList[] = list[i].substring(list[i].indexOf("=") +1).split(",");
log.debug("Domain: " + domain + " streamIdList:" + Arrays.toString(streamIdList));
streamid_hash.put(domain, streamIdList);
}
}
@Override
public void run() {
try {
event = CommonStartup.fProcessingInputQueue.take();
log.info("EventProcessor\tRemoving element: " + event);
//EventPublisher Ep=new EventPublisher();
while (event != null) {
// As long as the producer is running we remove elements from the queue.
//UUID uuid = UUID.fromString(event.get("VESuniqueId").toString());
String uuid = event.get("VESuniqueId").toString();
LoggingContext localLC = VESLogger.getLoggingContextForThread(uuid.toString());
localLC .put ( EcompFields.kBeginTimestampMs, SaClock.now () );
log.debug("event.VESuniqueId" + event.get("VESuniqueId") + "event.commonEventHeader.domain:" + event.getJSONObject("event").getJSONObject("commonEventHeader").getString("domain"));
String streamIdList[]=streamid_hash.get(event.getJSONObject("event").getJSONObject("commonEventHeader").getString("domain"));
log.debug("streamIdList:" + streamIdList);
if (streamIdList.length == 0) {
log.error("No StreamID defined for publish - Message dropped" + event.toString());
}
else {
for (int i=0; i < streamIdList.length; i++)
{
log.info("Invoking publisher for streamId:" + streamIdList[i]);
this.overrideEvent();
EventPublisher.getInstance(streamIdList[i]).sendEvent(event);
}
}
log.debug("Message published" + event.toString());
event = CommonStartup.fProcessingInputQueue.take();
// log.info("EventProcessor\tRemoving element: " + this.queue.remove());
}
} catch (InterruptedException e) {
log.error("EventProcessor InterruptedException" + e.getMessage());
}
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public void overrideEvent()
{
//Set collector timestamp in event payload before publish
final Date currentTime = new Date();
final SimpleDateFormat sdf = new SimpleDateFormat("EEE, MM dd yyyy hh:mm:ss z");
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
/*JSONArray additionalParametersarray = new JSONArray().put(new JSONObject().put("collectorTimeStamp", sdf.format(currentTime)));
JSONObject additionalParameter = new JSONObject().put("additionalParameters",additionalParametersarray );
JSONObject commonEventHeaderkey = event.getJSONObject("event").getJSONObject("commonEventHeader");
commonEventHeaderkey.put("internalHeaderFields", additionalParameter);*/
/* "event": {
"commonEventHeader": {
�.
"internalHeaderFields": {
"collectorTimeStamp": "Fri, 04 21 2017 04:11:52 GMT"
},
*/
//JSONArray additionalParametersarray = new JSONArray().put(new JSONObject().put("collectorTimeStamp", sdf.format(currentTime)));
JSONObject collectorTimeStamp = new JSONObject().put("collectorTimeStamp",sdf.format(currentTime) );
JSONObject commonEventHeaderkey = event.getJSONObject("event").getJSONObject("commonEventHeader");
commonEventHeaderkey.put("internalHeaderFields", collectorTimeStamp);
event.getJSONObject("event").put("commonEventHeader",commonEventHeaderkey);
if (CommonStartup.eventTransformFlag == 1)
{
// read the mapping json file
final JsonParser parser = new JsonParser();
try {
final JsonArray jo = (JsonArray) parser.parse ( new FileReader ( "./etc/eventTransform.json" ) );
log.info("parse eventTransform.json");
// now convert to org.json
final String jsonText = jo.toString ();
final JSONArray topLevel = new JSONArray ( jsonText );
//log.info("topLevel == " + topLevel);
Class[] paramJSONObject = new Class[1];
paramJSONObject[0] = JSONObject.class;
//load VESProcessors class at runtime
Class cls = Class.forName("org.onap.dcae.commonFunction.ConfigProcessors");
Constructor constr = cls.getConstructor(paramJSONObject);
Object obj = constr.newInstance(event);
for (int j=0; j<topLevel.length(); j++)
{
JSONObject filterObj = topLevel.getJSONObject(j).getJSONObject("filter");
Method method = cls.getDeclaredMethod("isFilterMet", paramJSONObject);
boolean filterMet = (boolean) method.invoke (obj, filterObj );
if (filterMet)
{
final JSONArray processors = (JSONArray)topLevel.getJSONObject(j).getJSONArray("processors");
//call the processor method
for (int i=0; i < processors.length(); i++)
{
final JSONObject processorList = processors.getJSONObject(i);
final String functionName = processorList.getString("functionName");
final JSONObject args = processorList.getJSONObject("args");
//final JSONObject filter = processorList.getJSONObject("filter");
log.info("functionName==" + functionName + " | args==" + args);
//reflect method call
method = cls.getDeclaredMethod(functionName, paramJSONObject);
method.invoke(obj, args);
}
}
}
} catch (Exception e) {
log.error("EventProcessor Exception" + e.getMessage() + e);
log.error("EventProcessor Exception" + e.getCause());
}
}
log.debug("Modified event:" + event);
}
}
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