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authorHesam Rahimi <hesam.rahimi@huawei.com>2022-09-02 16:41:09 -0400
committerDan Timoney <dtimoney@att.com>2022-09-20 20:18:13 +0000
commitcc105abcb5a70b4418241ffdabc9ec9fc7546293 (patch)
treeea55c3ea12c44935f3af52673dd98d93d89577ab /plugins/restconf-client/provider/src/main/java
parent355def7bdaf1257a6c3933514f5f9ddb232e0e17 (diff)
Implementing a mechanism to support periodic pulling of Performance Monitoring (PM) data
from 3rd party controllers. Issue-ID: CCSDK-3752 Signed-off-by: Hesam Rahimi <hesam.rahimi@huawei.com> Change-Id: I6ee692d1ab370bf9ad3f2f88db63efc2a124b87c
Diffstat (limited to 'plugins/restconf-client/provider/src/main/java')
-rw-r--r--plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/PeriodicDiscoveryNode.java681
-rw-r--r--plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java5
-rw-r--r--plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/SvcLogicDiscoveryPlugin.java30
3 files changed, 716 insertions, 0 deletions
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/PeriodicDiscoveryNode.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/PeriodicDiscoveryNode.java
new file mode 100644
index 000000000..220de8790
--- /dev/null
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/PeriodicDiscoveryNode.java
@@ -0,0 +1,681 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CCSDK
+ * ================================================================================
+ * Copyright (C) 2018 Huawei Technologies Co., Ltd. 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.ccsdk.sli.plugins.restconfdiscovery;
+
+import com.google.common.collect.ImmutableMap;
+import org.glassfish.jersey.media.sse.EventInput;
+import org.glassfish.jersey.media.sse.EventSource;
+import org.glassfish.jersey.media.sse.InboundEvent;
+import org.glassfish.jersey.media.sse.SseFeature;
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.onap.ccsdk.sli.core.utils.common.AcceptIpAddressHostNameVerifier;
+import org.onap.ccsdk.sli.plugins.restapicall.Parameters;
+import org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode;
+import org.onap.ccsdk.sli.plugins.restconfapicall.RestconfApiCallNode;
+import org.slf4j.Logger;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.Response;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.concurrent.*;
+
+import static org.onap.ccsdk.sli.plugins.restapicall.JsonParser.convertToProperties;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Representation of a plugin to subscribe for notification and then
+ * to handle the received notifications.
+ */
+public class PeriodicDiscoveryNode implements RestConfSBController, SvcLogicDiscoveryPlugin {
+
+ private static final Logger log = getLogger(PeriodicDiscoveryNode.class);
+
+ private static final String ROOT_RESOURCE = "/restconf";
+ private static final String SUBSCRIBER_ID = "subscriberId";
+ private static final String RESPONSE_CODE = "response-code";
+ private static final String RESPONSE_PREFIX = "responsePrefix";
+ private static final String OUTPUT_IDENTIFIER = "ietf-subscribed-notif" +
+ "ications:establish-subscription.output.identifier";
+ private static final String OUTPUT_IDENTIFIER_NO_PREFIX = "output.identifier";
+ private static final String RESPONSE_CODE_200 = "200";
+ private static final String SSE_URL = "sseConnectURL";
+ private static final String PERIODIC_PUL_URL = "periodicPullURL";
+ private static final String REST_API_URL = "restapiUrl";
+ private static final String RESOURCE_PATH_PREFIX = "/data/";
+ private static final String NOTIFICATION_PATH_PREFIX = "/streams/";
+ private static final String DEVICE_IP = "deviceIp";
+ private static final String DEVICE_PORT = "devicePort";
+ private static final String DOUBLESLASH = "//";
+ private static final String COLON = ":";
+
+ private RestconfApiCallNode restconfApiCallNode;
+ private RestapiCallNode restapiCallNode = new RestapiCallNode();
+ private volatile Map<String, SubscriptionInfo> subscriptionInfoMap = new ConcurrentHashMap<>();
+ private volatile LinkedBlockingQueue<String> eventQueue = new LinkedBlockingQueue<>();
+ private Map<DeviceId, PeriodicPullRunnable> periodicRunnableTable = new ConcurrentHashMap<>();
+ private Map<DeviceId, String> subscribedDevicesTable = new ConcurrentHashMap<>();
+ private Map<DeviceId, BlockingQueue<String>> eventQMap = new ConcurrentHashMap<>();
+ private Map<DeviceId, InternalPeriodicPullingProcessorRunnable>
+ processorRunnableTable = new ConcurrentHashMap<>();
+ private final Map<DeviceId, RestSBDevice> deviceMap = new ConcurrentHashMap<>();
+ private final Map<DeviceId, Client> clientMap = new ConcurrentHashMap<>();
+ private ExecutorService executor = Executors.newCachedThreadPool();
+ private ScheduledExecutorService scheduledExecutor = Executors.newScheduledThreadPool(2);
+
+ /**
+ * Creates an instance of RestconfDiscoveryNode and starts processing of
+ * event.
+ *
+ * @param r restconf api call node
+ */
+ public PeriodicDiscoveryNode(RestconfApiCallNode r) {
+ log.info("inside RestconfDiscoveryNode Constructor");
+ this.restconfApiCallNode = r;
+ this.activate();
+// ExecutorService e = Executors.newFixedThreadPool(20);
+// EventProcessor p = new EventProcessor(this);
+// for (int i = 0; i < 20; ++i) {
+// e.execute(p);
+// }
+ }
+
+ public void activate() {
+ log.info("RESTCONF SBI Started");
+ }
+
+ public void deactivate() {
+ log.info("RESTCONF SBI Stopped");
+ executor.shutdown();
+ this.getClientMap().clear();
+ this.getDeviceMap().clear();
+ }
+
+ public Map<DeviceId, RestSBDevice> getDeviceMap() {
+ return deviceMap;
+ }
+
+ public Map<DeviceId, Client> getClientMap() {
+ return clientMap;
+ }
+
+ @Override
+ public Map<DeviceId, RestSBDevice> getDevices() {
+ log.trace("RESTCONF SBI::getDevices");
+ return ImmutableMap.copyOf(deviceMap);
+ }
+
+ @Override
+ public RestSBDevice getDevice(DeviceId deviceInfo) {
+ log.trace("RESTCONF SBI::getDevice with deviceId");
+ return deviceMap.get(deviceInfo);
+ }
+
+ @Override
+ public RestSBDevice getDevice(String ip, int port) {
+ log.trace("RESTCONF SBI::getDevice with ip and port");
+ try {
+ if (!deviceMap.isEmpty()) {
+ return deviceMap.values().stream().filter(v -> v.ip().equals(ip) && v.port() == port).findFirst().get();
+ }
+ } catch (NoSuchElementException noSuchElementException) {
+ log.error("getDevice::device {}:{} does not exist in deviceMap", ip, port);
+ }
+ return null;
+ }
+
+ @Override
+ public void addDevice(RestSBDevice device) {
+ log.trace("RESTCONF SBI::addDevice");
+ if (!deviceMap.containsKey(device.deviceId())) {
+ if (device.username() != null) {
+ String username = device.username();
+ String password = device.password() == null ? "" : device.password();
+ // authenticate(client, username, password);
+ }
+ BlockingQueue<String> newBlockingQueue = new LinkedBlockingQueue<>();
+ eventQMap.put(device.deviceId(), newBlockingQueue);
+ InternalPeriodicPullingProcessorRunnable eventProcessorRunnable =
+ new InternalPeriodicPullingProcessorRunnable(device.deviceId());
+ processorRunnableTable.put(device.deviceId(), eventProcessorRunnable);
+ log.trace("addDevice::restconf event processor runnable is created and is going for execute");
+ executor.execute(eventProcessorRunnable);
+ log.trace("addDevice::restconf event processor runnable was sent for execute");
+ deviceMap.put(device.deviceId(), device);
+ } else {
+ log.warn("addDevice::Trying to add a device which already exists {}", device.deviceId());
+ }
+ }
+
+ @Override
+ public void removeDevice(DeviceId deviceId) {
+ log.trace("RESTCONF SBI::removeDevice");
+ eventQMap.remove(deviceId);
+ clientMap.remove(deviceId);
+ deviceMap.remove(deviceId);
+ }
+
+ @Override
+ public void establishSubscription(Map<String, String> paramMap,
+ SvcLogicContext ctx) throws SvcLogicException {
+ String subscriberId = paramMap.get(SUBSCRIBER_ID);
+ if (subscriberId == null) {
+ throw new SvcLogicException("Subscriber Id is null");
+ }
+
+ restconfApiCallNode.sendRequest(paramMap, ctx);
+
+ if (getResponseCode(paramMap.get(RESPONSE_PREFIX), ctx).equals(RESPONSE_CODE_200)) {
+ // TODO: save subscription id and subscriber in MYSQL
+
+ establishPersistentConnection(paramMap, ctx, subscriberId);
+ } else {
+ log.info("Failed to subscribe {}", subscriberId);
+ throw new SvcLogicException(ctx.getAttribute(RESPONSE_CODE));
+ }
+ }
+
+ @Override
+ public void establishSubscriptionOnly(Map<String, String> paramMap, SvcLogicContext ctx)
+ throws SvcLogicException {
+ String subscriberId = paramMap.get(SUBSCRIBER_ID);
+ if (subscriberId == null) {
+ throw new SvcLogicException("Subscriber Id is null");
+ }
+
+ String subscribeUrlString = paramMap.get(REST_API_URL);
+ URL subscribeUrl = null;
+ RestSBDevice dev = null;
+ try {
+ subscribeUrl = new URL(subscribeUrlString);
+ dev = getDevice(subscribeUrl.getHost(), subscribeUrl.getPort());
+ } catch (MalformedURLException e) {
+ log.error("establishSubscriptionOnly::MalformedURLException happened. e: {}", e);
+ return;
+ }
+
+ if (dev == null) {
+ log.warn("establishSubscriptionOnly::device does not exist in the map. Trying to create one now.");
+ //FIXME: TODO: create a new RestSBDevice and add it to the map, as well as a client and clientMap
+ dev = new DefaultRestSBDevice(subscribeUrl.getHost(),
+ subscribeUrl.getPort(), "onos", "rocks", "http",
+ subscribeUrl.getHost() + ":" + subscribeUrl.getPort(), true);
+ this.addDevice(dev);
+ }
+
+ if (!subscribedDevicesTable.containsKey(dev.deviceId())) {
+ log.info("establishSubscriptionOnly::The device {} has not been subscribed yet. " +
+ "Trying to subscribe it now...");
+ restapiCallNode.sendRequest(paramMap, ctx);
+ if (getResponseCode(paramMap.get(RESPONSE_PREFIX), ctx).equals(RESPONSE_CODE_200)) {
+ // TODO: save subscription id and subscriber in MYSQL
+ String id = getOutputIdentifierNoPrefix(paramMap.get(RESPONSE_PREFIX), ctx);
+ log.info("establishSubscriptionOnly::Subscription is done successfully and " +
+ "the output.identifier is: {}", id);
+ log.info("establishSubscriptionOnly::The subscriptionID returned by the server " +
+ "does not exist in the map. Adding it now...");
+ subscribedDevicesTable.put(dev.deviceId(), id);
+
+ SvcLogicGraphInfo callbackDG = new SvcLogicGraphInfo(paramMap.get("module"),
+ paramMap.get("rpc"),
+ paramMap.get("version"),
+ paramMap.get("mode"));
+ SubscriptionInfo info = new SubscriptionInfo();
+ info.callBackDG(callbackDG);
+ info.subscriptionId(id);
+ info.subscriberId(subscriberId);
+ subscriptionInfoMap.put(id, info);
+
+ }
+ }
+
+ }
+
+ @Override
+ public void modifySubscription(Map<String, String> paramMap, SvcLogicContext ctx) {
+ // TODO: to be implemented
+ }
+
+ @Override
+ public void deleteSubscription(Map<String, String> paramMap, SvcLogicContext ctx) {
+ String id = getSubscriptionId(paramMap.get(SUBSCRIBER_ID));
+ if (id != null) {
+ subscriptionInfoMap.remove(id);
+ }
+ }
+
+ protected String getTokenId(String customHttpHeaders) {
+ if (customHttpHeaders.contains("=")) {
+ String[] s = customHttpHeaders.split("=");
+ return s[1];
+ }
+ return customHttpHeaders;
+ }
+
+ protected WebTarget addToken(WebTarget target, String customHttpHeaders) {
+ if (customHttpHeaders == null) {
+ return target;
+ }
+
+ return new AdditionalHeaderWebTarget(
+ target, getTokenId(customHttpHeaders));
+ }
+
+ /**
+ * Establishes a persistent between the client and server.
+ *
+ * @param paramMap input paramter map
+ * @param ctx service logic context
+ * @param subscriberId subscriber identifier
+ */
+ void establishPersistentConnection(Map<String, String> paramMap, SvcLogicContext ctx,
+ String subscriberId) {
+ }
+
+ /**
+ * Returns response code.
+ *
+ * @param prefix prefix given in input parameter
+ * @param ctx service logic context
+ * @return response code
+ */
+ String getResponseCode(String prefix, SvcLogicContext ctx) {
+ return ctx.getAttribute(getPrefix(prefix) + RESPONSE_CODE);
+ }
+
+ String getOutputIdentifierNoPrefix(String prefix, SvcLogicContext ctx) {
+ return ctx.getAttribute(getPrefix(prefix) + OUTPUT_IDENTIFIER_NO_PREFIX);
+ }
+
+ /**
+ * Returns subscription id from event.
+ *
+ * @param prefix prefix given in input parameter
+ * @param ctx service logic context
+ * @return subscription id from event
+ */
+ String getOutputIdentifier(String prefix, SvcLogicContext ctx) {
+ return ctx.getAttribute(getPrefix(prefix) + OUTPUT_IDENTIFIER);
+ }
+
+ private String getPrefix(String prefix) {
+ return prefix != null ? prefix + "." : "";
+ }
+
+ private String getSubscriptionId(String subscriberId) {
+ for (Map.Entry<String,SubscriptionInfo> entry
+ : subscriptionInfoMap.entrySet()) {
+ if (entry.getValue().subscriberId()
+ .equals(subscriberId)) {
+ return entry.getKey();
+ }
+ }
+ return null;
+ }
+
+ private String getUrlString(DeviceId deviceId, String request) {
+ RestSBDevice restSBDevice = deviceMap.get(deviceId);
+ if (restSBDevice == null) {
+ log.warn("getUrlString::restSbDevice cannot be NULL!");
+ return "";
+ }
+ if (restSBDevice.url() != null) {
+ return restSBDevice.protocol() + COLON + DOUBLESLASH + restSBDevice.url() + request;
+ } else {
+ return restSBDevice.protocol() + COLON + DOUBLESLASH + restSBDevice.ip().toString()
+ + COLON + restSBDevice.port() + request;
+ }
+ }
+
+ private String getSubscriptionIdFromDeviceId(DeviceId deviceId) {
+ if (subscribedDevicesTable.containsKey(deviceId)) {
+ return subscribedDevicesTable.get(deviceId);
+ }
+ return null;
+ }
+
+ private BlockingQueue<String> getEventQ(DeviceId deviceId) {
+ if (eventQMap.containsKey(deviceId)) {
+ return eventQMap.get(deviceId);
+ }
+ return null;
+ }
+
+ /**
+ * Returns restconfApiCallNode.
+ *
+ * @return restconfApiCallNode
+ */
+ protected RestconfApiCallNode restconfapiCallNode() {
+ return restconfApiCallNode;
+ }
+
+ /**
+ * Sets restconfApiCallNode.
+ *
+ * @param node restconfApiCallNode
+ */
+ void restconfapiCallNode(RestconfApiCallNode node) {
+ restconfApiCallNode = node;
+ }
+
+ Map<String, SubscriptionInfo> subscriptionInfoMap() {
+ return subscriptionInfoMap;
+ }
+
+ void subscriptionInfoMap(Map<String, SubscriptionInfo> subscriptionInfoMap) {
+ this.subscriptionInfoMap = subscriptionInfoMap;
+ }
+
+ LinkedBlockingQueue<String> eventQueue() {
+ return eventQueue;
+ }
+
+ void eventQueue(LinkedBlockingQueue<String> eventQueue) {
+ this.eventQueue = eventQueue;
+ }
+
+ /**
+ * Establishes a persistent SSE connection between the client and the server.
+ *
+ * @param paramMap input paramter map
+ * @param ctx service logic context
+ */
+ @Override
+ public void establishPersistentSseConnection(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
+
+ }
+
+ @Override
+ public void establishPeriodicPullConnection(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
+ String subscriberId = paramMap.get(SUBSCRIBER_ID);
+ SvcLogicGraphInfo callbackDG = new SvcLogicGraphInfo(paramMap.get("module"),
+ paramMap.get("rpc"),
+ paramMap.get("version"),
+ paramMap.get("mode"));
+ SubscriptionInfo info = new SubscriptionInfo();
+ info.callBackDG(callbackDG);
+ info.subscriberId(subscriberId);
+
+ String periodicPullUrlString = paramMap.get(PERIODIC_PUL_URL);
+ URL periodicPullUrl = null;
+ RestSBDevice dev = null;
+ try {
+ periodicPullUrl = new URL(periodicPullUrlString);
+ dev = getDevice(periodicPullUrl.getHost(), periodicPullUrl.getPort());
+ } catch (MalformedURLException e) {
+ log.error("establishPersistentSseConnection::MalformedURLException happened. e: {}", e);
+ return;
+ }
+
+ if (dev == null) {
+ log.warn("establishPeriodicPullConnection::device does not exist in the map. Trying to add one now.");
+ dev = new DefaultRestSBDevice(periodicPullUrl.getHost(),
+ periodicPullUrl.getPort(), "onos", "rocks", "http",
+ periodicPullUrl.getHost() + ":" + periodicPullUrl.getPort(), true);
+ this.addDevice(dev);
+ }
+
+ if (isNotificationEnabled(dev.deviceId())) {
+ log.warn("establishPeriodicPullConnection::notifications already enabled on device: {}",
+ dev.deviceId());
+ return;
+ }
+
+ if (getSubscriptionIdFromDeviceId(dev.deviceId()) == null) {
+ log.warn("This device {} has not yet been subscribed to receive notifications.",
+ dev.deviceId());
+ return;
+ }
+
+ RestconfNotificationEventListenerImpl myListener =
+ new RestconfNotificationEventListenerImpl(info);
+ enableNotifications(dev.deviceId(), "ietf-service-pm:performance-monitoring", "json", myListener);
+ }
+
+ @Override
+ public void enableNotifications(DeviceId device, String request,
+ String mediaType,
+ RestconfNotificationEventListener listener) {
+ if (isNotificationEnabled(device)) {
+ log.warn("enableNotifications::already enabled on device: {}", device);
+ return;
+ }
+
+ request = discoverRootResource(device) + RESOURCE_PATH_PREFIX
+ + request;
+
+ addNotificationListener(device, listener);
+
+ PeriodicPullRunnable periodicRunnable = new PeriodicPullRunnable(request, device);
+ periodicRunnableTable.put(device, periodicRunnable);
+ scheduledExecutor.scheduleAtFixedRate(periodicRunnable, 0, 60, TimeUnit.SECONDS);
+ }
+
+ public void stopNotifications(DeviceId device) {
+ try {
+ periodicRunnableTable.get(device).terminate();
+ processorRunnableTable.get(device).terminate();
+ } catch (Exception ex) {
+ log.error("stopNotifications::Exception happened when terminating, ex: {}", ex);
+ }
+ log.info("stopNotifications::Runnable is now terminated");
+ periodicRunnableTable.remove(device);
+ processorRunnableTable.remove(device);
+ log.debug("stopNotifications::Stop sending notifications for device URI: " + device.uri().toString());
+ }
+
+ @Override
+ public void deleteSubscriptionAndSseConnection(Map<String, String> paramMap, SvcLogicContext ctx) {
+ String deleteSubscribeUrlString = paramMap.get(REST_API_URL);
+ URL deleteSubscribeUrl = null;
+ RestSBDevice dev = null;
+ try {
+ deleteSubscribeUrl = new URL(deleteSubscribeUrlString);
+ dev = getDevice(deleteSubscribeUrl.getHost(), deleteSubscribeUrl.getPort());
+ } catch (MalformedURLException e) {
+ log.error("establishSubscriptionOnly::MalformedURLException happened. e: {}", e);
+ return;
+ }
+
+ String deviceIp = deleteSubscribeUrl.getHost();
+ String devicePort = String.valueOf(deleteSubscribeUrl.getPort());
+ log.info("deleteSubscriptionAndSseConnection::Trying to unsubscribe device {}:{}",
+ deviceIp, devicePort);
+ if (dev == null) {
+ log.error("deleteSubscriptionAndSseConnection::device does not exist in the map");
+ return;
+ }
+ String subscriptionId = getSubscriptionIdFromDeviceId(dev.deviceId());
+
+ if (subscriptionId != null) {
+ log.info("deleteSubscriptionAndSseConnection::SubscriptionID is found {}", subscriptionId);
+ log.info("deleteSubscriptionAndSseConnection::About to send unsubscribe request");
+ try {
+ ctx.setAttribute("subscriptionId", subscriptionId);
+ restapiCallNode.sendRequest(paramMap, ctx);
+ if (getResponseCode(paramMap.get(RESPONSE_PREFIX), ctx).equals(RESPONSE_CODE_200)) {
+ log.info("deleteSubscriptionAndSseConnection::Successfully unsubscribed");
+ stopNotifications(dev.deviceId());
+ subscribedDevicesTable.remove(dev.deviceId());
+
+ String id = getSubscriptionId(paramMap.get(SUBSCRIBER_ID));
+ if (id != null) {
+ subscriptionInfoMap.remove(id);
+ }
+
+ } else {
+ log.info("deleteSubscriptionAndSseConnection::Unsubscription was NOT successfull");
+ }
+ } catch (SvcLogicException e) {
+ log.error("deleteSubscriptionAndSseConnection::Exception happened ex: {}", e);
+ }
+ } else {
+ log.warn("deleteSubscriptionAndSseConnection::This device has already been unsubscribed");
+ }
+ }
+
+ public class PeriodicPullRunnable implements Runnable {
+ private String request;
+ private DeviceId deviceId;
+
+ private volatile boolean running = true;
+
+ public void terminate() {
+ log.info("PeriodicPullRunnable.terminate()::threadID: {}",
+ Thread.currentThread().getId());
+ running = false;
+ }
+
+ /**
+ * @param request request
+ * @param deviceId device identifier
+ */
+ public PeriodicPullRunnable(String request, DeviceId deviceId) {
+ this.request = request;
+ this.deviceId = deviceId;
+ }
+
+ @Override
+ public void run() {
+ log.trace("PeriodicPullRunnable.run()::threadID is: {} ...., running is: {}",
+ Thread.currentThread().getId(), running);
+ try {
+ Client client = ClientBuilder.newBuilder().build();
+ WebTarget target = client.target(getUrlString(deviceId, request));
+ log.trace("PeriodicPullRunnable.run()::target URI is {}", target.getUri().toString());
+ Response response = null;
+ if (running) {
+ response = target.request().get();
+ String rcvdData = response.readEntity(String.class);
+ log.trace("PeriodicPullRunnable.run()::after readEntity");
+ BlockingQueue<String> eventQ = getEventQ(deviceId);
+ if (eventQ != null) {
+ eventQ.add(rcvdData);
+ eventQMap.put(deviceId, eventQ);
+ log.trace("PeriodicPullRunnable.run()::eventQ got filled.");
+ } else {
+ log.error("PeriodicPullRunnable.run()::eventQ has not been initialized for this device {}",
+ deviceId);
+ }
+ } else {
+ log.trace("PeriodicPullRunnable.run()::running is false! " +
+ "closing the client and the response, threadID: {}", Thread.currentThread().getId());
+ response.close();
+ client.close();
+ log.info("PeriodicPullRunnable.run()::eventInput is closed in run()");
+ }
+ } catch (Exception ex) {
+ log.info("PeriodicPullRunnable.run()::We got some exception: {}, threadID: {} ", ex,
+ Thread.currentThread().getId());
+ }
+ log.trace("PeriodicPullRunnable.run()::after Runnable Try Catch. threadID: {} ",
+ Thread.currentThread().getId());
+ }
+ }
+
+ public class InternalPeriodicPullingProcessorRunnable implements Runnable {
+
+ private volatile boolean running = true;
+ private DeviceId deviceId;
+
+ public InternalPeriodicPullingProcessorRunnable(DeviceId deviceId) {
+ this.deviceId = deviceId;
+ }
+
+ public void terminate() {
+ log.info("InternalPeriodicPullingProcessorRunnable.terminate()::threadID: {}",
+ Thread.currentThread().getId());
+ running = false;
+ }
+
+ @Override
+ public void run() {
+ log.trace("InternalPeriodicPullingProcessorRunnable::restconf event processor runnable inside run()");
+ while (running) {
+ try {
+ if (eventQMap != null && !eventQMap.isEmpty() && eventQMap.get(deviceId) != null) {
+ log.trace("InternalPeriodicPullingProcessorRunnable::waiting for take()");
+ if (running) {
+ String eventJsonString = eventQMap.get(deviceId).take();
+ log.trace("InternalPeriodicPullingProcessorRunnable::after take()");
+ log.info("InternalPeriodicPullingProcessorRunnable::eventJsonString is {}", eventJsonString);
+ Map<String, String> param = convertToProperties(eventJsonString);
+ String idString = param.get("push-change-update.subscription-id");
+ SubscriptionInfo info = subscriptionInfoMap().get(idString);
+ if (info != null) {
+ SvcLogicContext ctx = setContext(param);
+ SvcLogicGraphInfo callbackDG = info.callBackDG();
+ callbackDG.executeGraph(ctx);
+ }
+ } else {
+ log.info("InternalPeriodicPullingProcessorRunnable.run()::running has changed to false " +
+ "while eventQ was blocked to process new notifications");
+ log.info("InternalPeriodicPullingProcessorRunnable.run()::" +
+ "the client is no longer interested to receive notifications.");
+ break;
+ }
+ }
+ } catch (InterruptedException | SvcLogicException e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ private SvcLogicContext setContext(Map<String, String> param) {
+ SvcLogicContext ctx = new SvcLogicContext();
+ for (Map.Entry<String, String> entry : param.entrySet()) {
+ ctx.setAttribute(entry.getKey(), entry.getValue());
+ }
+ return ctx;
+ }
+ }
+
+ public String discoverRootResource(DeviceId device) {
+ return ROOT_RESOURCE;
+ }
+
+ @Override
+ public void addNotificationListener(DeviceId deviceId,
+ RestconfNotificationEventListener listener) {
+ }
+
+ @Override
+ public void removeNotificationListener(DeviceId deviceId,
+ RestconfNotificationEventListener listener) {
+ }
+
+ public boolean isNotificationEnabled(DeviceId deviceId) {
+ return periodicRunnableTable.containsKey(deviceId);
+ }
+
+}
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
index e3b051265..10529b3ab 100644
--- a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
@@ -562,6 +562,11 @@ public class RestconfDiscoveryNode implements RestConfSBController, SvcLogicDisc
}
@Override
+ public void establishPeriodicPullConnection(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
+
+ }
+
+ @Override
public void enableNotifications(DeviceId device, String request,
String mediaType,
RestconfNotificationEventListener listener) {
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/SvcLogicDiscoveryPlugin.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/SvcLogicDiscoveryPlugin.java
index 972fb2b55..d40d9a3f8 100644
--- a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/SvcLogicDiscoveryPlugin.java
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/SvcLogicDiscoveryPlugin.java
@@ -124,6 +124,36 @@ public interface SvcLogicDiscoveryPlugin extends SvcLogicJavaPlugin {
void establishPersistentSseConnection(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException;
/**
+ * Allows directed graphs to establish a periodic pull from a given controller.
+ * @param paramMap HashMap<String,String> of parameters passed by the DG to this function
+ * <table border="1">
+ * <thead><th>parameter</th><th>Mandatory/Optional</th><th>description</th><th>example values</th></thead>
+ * <tbody>
+ * <tr><td>templateDirName</td><td>Optional</td><td>full path to YANG directory that can be used to build a request</td><td>/sdncopt/bvc/resconfapi/test</td></tr>
+ * <tr><td>periodicPullURL</td><td>Mandatory</td><td>url to send periodically to the server</td><td>https://127.0.0.1:8181/restconf/data/ietf-service-pm:performance-monitoring</td></tr>
+ * <tr><td>callbackDG</td><td>Mandatory</td><td>callback DG to process the received notification</td><td>Resource-Discovery:handleSOTNTopology</td></tr>
+ * <tr><td>filterURL</td><td>Optional</td><td>url which needs to be subscribed, if null subscribe to all</td><td>http://example.com/sample-data/1.0</td></tr>
+ * <tr><td>subscriptionType</td><td>Optional</td><td>type of subscription, periodic or onDataChange</td><td>onDataChange</td></tr>
+ * <tr><td>updateFrequency</td><td>Optional</td><td>update frequency in milli seconds when subscription type is periodic</td><td>1000</td></tr>
+ * <tr><td>restapiUser</td><td>Optional</td><td>user name to use for http basic authentication</td><td>sdnc_ws</td></tr>
+ * <tr><td>restapiPassword</td><td>Optional</td><td>unencrypted password to use for http basic authentication</td><td>plain_password</td></tr>
+ * <tr><td>contentType</td><td>Optional</td><td>http content type to set in the http header</td><td>usually application/json or application/xml</td></tr>
+ * <tr><td>format</td><td>Optional</td><td>should match request body format</td><td>json or xml</td></tr>
+ * <tr><td>responsePrefix</td><td>Optional</td><td>location the notification response will be written to in context memory</td><td>tmp.restconfdiscovery.result</td></tr>
+ * <tr><td>skipSending</td><td>Optional</td><td></td><td>true or false</td></tr>
+ * <tr><td>convertResponse </td><td>Optional</td><td>whether the response should be converted</td><td>true or false</td></tr>
+ * <tr><td>customHttpHeaders</td><td>Optional</td><td>a list additional http headers to be passed in, follow the format in the example</td><td>X-CSI-MessageId=messageId,headerFieldName=headerFieldValue</td></tr>
+ * <tr><td>dumpHeaders</td><td>Optional</td><td>when true writes http header content to context memory</td><td>true or false</td></tr>
+ * </tbody>
+ * </table>
+ * @param ctx Reference to context memory
+ * @throws SvcLogicException
+ * @since 11.0.2
+ * @see String#split(String, int)
+ */
+ void establishPeriodicPullConnection(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException;
+
+ /**
* Allows directed graphs to modify a discovery subscription for a given subscriber.
* @param paramMap HashMap<String,String> of parameters passed by the DG to this function
* <table border="1">