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authorKrysiak Adam Gabriel <adam.krysiak@nokia.com>2018-05-23 15:34:37 +0200
committerKrysiak Adam Gabriel <adam.krysiak@nokia.com>2018-06-08 09:20:34 +0200
commit15a1bd474bdc463d744f6621e3c49761f6bf2927 (patch)
treef7778c6dcdd2b6a547b9ed293adf4d1ee24138d4 /src/main/java/org/onap
parent0bfbea6f7d7a5fb324dd3e4961239a6dae3fcb0d (diff)
Refactored event processor + sonar
Issue-ID: DCAEGEN2-521 Change-Id: I9290f21701945cd1bb5e7a43a671991417f25491 Signed-off-by: Krysiak Adam Gabriel <adam.krysiak@nokia.com>
Diffstat (limited to 'src/main/java/org/onap')
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/Event.java34
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/EventProcessor.java298
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/Processor.java33
3 files changed, 218 insertions, 147 deletions
diff --git a/src/main/java/org/onap/dcae/commonFunction/Event.java b/src/main/java/org/onap/dcae/commonFunction/Event.java
new file mode 100644
index 00000000..faae2451
--- /dev/null
+++ b/src/main/java/org/onap/dcae/commonFunction/Event.java
@@ -0,0 +1,34 @@
+/*-
+ * ============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 com.google.gson.JsonObject;
+
+import java.util.List;
+
+class Event {
+ final JsonObject filter;
+ final List<Processor> processors;
+
+ Event(JsonObject filter, List<Processor> processors) {
+ this.filter = filter;
+ this.processors = processors;
+ }
+}
diff --git a/src/main/java/org/onap/dcae/commonFunction/EventProcessor.java b/src/main/java/org/onap/dcae/commonFunction/EventProcessor.java
index c7c052f9..04687b32 100644
--- a/src/main/java/org/onap/dcae/commonFunction/EventProcessor.java
+++ b/src/main/java/org/onap/dcae/commonFunction/EventProcessor.java
@@ -23,165 +23,169 @@ package org.onap.dcae.commonFunction;
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 org.json.JSONArray;
+import com.google.common.reflect.TypeToken;
+import com.google.gson.Gson;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import java.io.IOException;
import java.io.FileReader;
-import java.lang.reflect.Constructor;
+import java.io.IOException;
import java.lang.reflect.Method;
+import java.lang.reflect.Type;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
+import java.util.List;
import java.util.TimeZone;
+
public class EventProcessor implements Runnable {
- private static final Logger log = LoggerFactory.getLogger(EventProcessor.class);
- private static final String EVENT_LITERAL = "event";
- private static final String COMMON_EVENT_HEADER = "commonEventHeader";
-
- private static HashMap<String, String[]> streamidHash = new HashMap<>();
- public JSONObject event;
-
- public EventProcessor() {
- log.debug("EventProcessor: Default Constructor");
-
- String[] list = CommonStartup.streamid.split("\\|");
- for (String aList : list) {
- String domain = aList.split("=")[0];
-
- String[] streamIdList = aList.substring(aList.indexOf('=') + 1).split(",");
-
- log.debug(String.format("Domain: %s streamIdList:%s", domain, Arrays.toString(streamIdList)));
- streamidHash.put(domain, streamIdList);
- }
-
- }
-
- @Override
- public void run() {
-
- try {
-
- event = CommonStartup.fProcessingInputQueue.take();
-
- while (event != null) {
- // As long as the producer is running we remove elements from
- // the queue.
- log.info("QueueSize:" + CommonStartup.fProcessingInputQueue.size()+ "\tEventProcessor\tRemoving element: " + event );
-
- String uuid = event.get("VESuniqueId").toString();
- LoggingContext localLC = VESLogger.getLoggingContextForThread(uuid);
- localLC.put(EcompFields.kBeginTimestampMs, SaClock.now());
-
- log.debug("event.VESuniqueId" + event.get("VESuniqueId") + "event.commonEventHeader.domain:"
- + event.getJSONObject(EVENT_LITERAL).getJSONObject(COMMON_EVENT_HEADER).getString("domain"));
- String[] streamIdList = streamidHash
- .get(event.getJSONObject(EVENT_LITERAL).getJSONObject(COMMON_EVENT_HEADER).getString("domain"));
- log.debug("streamIdList:" + streamIdList);
-
- if (streamIdList.length == 0) {
- log.error("No StreamID defined for publish - Message dropped" + event);
- } else {
- for (String aStreamIdList : streamIdList) {
- log.info("Invoking publisher for streamId:" + aStreamIdList);
- this.overrideEvent();
-
- EventPublisherHash.getInstance().sendEvent(event, aStreamIdList);
-
- }
- }
- log.debug("Message published" + event);
- event = CommonStartup.fProcessingInputQueue.take();
-
- }
- } catch (InterruptedException e) {
- log.error("EventProcessor InterruptedException" + e.getMessage());
- Thread.currentThread().interrupt();
- }
-
- }
-
- @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"));
-
- JSONObject collectorTimeStamp = new JSONObject().put("collectorTimeStamp", sdf.format(currentTime));
- JSONObject commonEventHeaderkey = event.getJSONObject(EVENT_LITERAL).getJSONObject(COMMON_EVENT_HEADER);
- commonEventHeaderkey.put("internalHeaderFields", collectorTimeStamp);
- event.getJSONObject(EVENT_LITERAL).put(COMMON_EVENT_HEADER, commonEventHeaderkey);
-
- if (CommonStartup.eventTransformFlag == 1) {
- // read the mapping json file
- final JsonParser parser = new JsonParser();
- FileReader fr = null;
- try {
- fr = new FileReader("./etc/eventTransform.json");
- final JsonArray jo = (JsonArray) parser.parse(fr);
- log.info("parse eventTransform.json");
- // now convert to org.json
- final String jsonText = jo.toString();
- final JSONArray topLevel = new JSONArray(jsonText);
-
- 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 = 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");
-
-
- log.info(String.format("functionName==%s | args==%s", functionName, args));
- // reflect method call
- method = cls.getDeclaredMethod(functionName, paramJSONObject);
- method.invoke(obj, args);
- }
- }
- }
-
- } catch (Exception e) {
-
- log.error("EventProcessor Exception" + e.getMessage() + e + e.getCause());
- } finally {
- // close the file
- if (fr != null) {
- try {
- fr.close();
- } catch (IOException e) {
- log.error("Error closing file reader stream : " + e.toString());
- }
-
- }
- }
- }
- // Remove VESversion from event. This field is for internal use and must
- // be removed after use.
- if (event.has("VESversion"))
- event.remove("VESversion");
-
- log.debug("Modified event:" + event);
-
- }
+ private static final Logger log = LoggerFactory.getLogger(EventProcessor.class);
+ private static final String EVENT_LITERAL = "event";
+ private static final String COMMON_EVENT_HEADER = "commonEventHeader";
+ static final Type EVENT_LIST_TYPE = new TypeToken<List<Event>>() {
+ }.getType();
+ private final SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, MM dd yyyy hh:mm:ss z");
+
+ private static HashMap<String, String[]> streamidHash = new HashMap<>();
+ JSONObject event;
+
+ public EventProcessor() {
+ dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
+ String[] list = CommonStartup.streamid.split("\\|");
+ for (String aList : list) {
+ String domain = aList.split("=")[0];
+
+ String[] streamIdList = aList.substring(aList.indexOf('=') + 1).split(",");
+
+ log.debug(String.format("Domain: %s streamIdList:%s", domain, Arrays.toString(streamIdList)));
+ streamidHash.put(domain, streamIdList);
+ }
+
+ }
+
+ @Override
+ public void run() {
+
+ try {
+
+ event = CommonStartup.fProcessingInputQueue.take();
+
+ while (event != null) {
+ // As long as the producer is running we remove elements from
+ // the queue.
+ log.info("QueueSize:" + CommonStartup.fProcessingInputQueue.size() + "\tEventProcessor\tRemoving element: " + event);
+
+ String uuid = event.get("VESuniqueId").toString();
+ LoggingContext localLC = VESLogger.getLoggingContextForThread(uuid);
+ localLC.put(EcompFields.kBeginTimestampMs, SaClock.now());
+
+ String domain = event.getJSONObject(EVENT_LITERAL).getJSONObject(COMMON_EVENT_HEADER).getString("domain");
+ log.debug("event.VESuniqueId" + event.get("VESuniqueId") + "event.commonEventHeader.domain:" + domain);
+ String[] streamIdList = streamidHash.get(domain);
+ log.debug("streamIdList:" + Arrays.toString(streamIdList));
+
+ if (streamIdList.length == 0) {
+ log.error("No StreamID defined for publish - Message dropped" + event);
+ } else {
+ sendEventsToStreams(streamIdList);
+ }
+ log.debug("Message published" + event);
+ event = CommonStartup.fProcessingInputQueue.take();
+
+ }
+ } catch (InterruptedException e) {
+ log.error("EventProcessor InterruptedException" + e.getMessage());
+ Thread.currentThread().interrupt();
+ }
+
+ }
+
+ public void overrideEvent() {
+ // Set collector timestamp in event payload before publish
+ addCurrentTimeToEvent(event);
+
+ if (CommonStartup.eventTransformFlag == 1) {
+ // read the mapping json file
+ try (FileReader fr = new FileReader("./etc/eventTransform.json")) {
+ log.info("parse eventTransform.json");
+ List<Event> events = new Gson().fromJson(fr, EVENT_LIST_TYPE);
+ parseEventsJson(events, new ConfigProcessorAdapter(new ConfigProcessors(event)));
+ } catch (IOException e) {
+ log.error("Couldn't find file ./etc/eventTransform.json" + e.toString());
+ }
+ }
+ // Remove VESversion from event. This field is for internal use and must
+ // be removed after use.
+ if (event.has("VESversion"))
+ event.remove("VESversion");
+
+ log.debug("Modified event:" + event);
+
+ }
+
+ private void sendEventsToStreams(String[] streamIdList) {
+ for (String aStreamIdList : streamIdList) {
+ log.info("Invoking publisher for streamId:" + aStreamIdList);
+ this.overrideEvent();
+ EventPublisherHash.getInstance().sendEvent(event, aStreamIdList);
+
+ }
+ }
+
+ private void addCurrentTimeToEvent(JSONObject event) {
+ final Date currentTime = new Date();
+ JSONObject collectorTimeStamp = new JSONObject().put("collectorTimeStamp", dateFormat.format(currentTime));
+ JSONObject commonEventHeaderkey = event.getJSONObject(EVENT_LITERAL).getJSONObject(COMMON_EVENT_HEADER);
+ commonEventHeaderkey.put("internalHeaderFields", collectorTimeStamp);
+ event.getJSONObject(EVENT_LITERAL).put(COMMON_EVENT_HEADER, commonEventHeaderkey);
+ }
+
+ void parseEventsJson(List<Event> eventsTransform, ConfigProcessorAdapter configProcessorAdapter) {
+
+ // load VESProcessors class at runtime
+ for (Event eventTransform : eventsTransform) {
+ JSONObject filterObj = new JSONObject(eventTransform.filter.toString());
+ if (configProcessorAdapter.isFilterMet(filterObj)) {
+ callProcessorsMethod(configProcessorAdapter, eventTransform.processors);
+ }
+ }
+ }
+
+ private void callProcessorsMethod(ConfigProcessorAdapter configProcessorAdapter, List<Processor> processors) {
+ // call the processor method
+ for (Processor processor : processors) {
+ final String functionName = processor.functionName;
+ final JSONObject args = new JSONObject(processor.args.toString());
+
+ log.info(String.format("functionName==%s | args==%s", functionName, args));
+ // reflect method call
+ try {
+ configProcessorAdapter.runConfigProcessorFunctionByName(functionName, args);
+ } catch (ReflectiveOperationException e) {
+ log.error("EventProcessor Exception" + e.getMessage() + e + e.getCause());
+ }
+ }
+ }
+
+ static class ConfigProcessorAdapter {
+ private final ConfigProcessors configProcessors;
+
+ ConfigProcessorAdapter(ConfigProcessors configProcessors) {
+ this.configProcessors = configProcessors;
+ }
+
+ boolean isFilterMet(JSONObject parameter) {
+ return configProcessors.isFilterMet(parameter);
+ }
+
+ void runConfigProcessorFunctionByName(String functionName, JSONObject parameter) throws ReflectiveOperationException {
+ Method method = configProcessors.getClass().getDeclaredMethod(functionName, parameter.getClass());
+ method.invoke(configProcessors, parameter);
+ }
+ }
}
+
diff --git a/src/main/java/org/onap/dcae/commonFunction/Processor.java b/src/main/java/org/onap/dcae/commonFunction/Processor.java
new file mode 100644
index 00000000..ea79f1d3
--- /dev/null
+++ b/src/main/java/org/onap/dcae/commonFunction/Processor.java
@@ -0,0 +1,33 @@
+/*-
+ * ============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 com.google.gson.JsonObject;
+
+class Processor {
+ final String functionName;
+ final JsonObject args;
+
+ Processor(String functionName, JsonObject args) {
+ this.functionName = functionName;
+ this.args = args;
+ }
+}