1 /*******************************************************************************
2 * ============LICENSE_START==================================================
4 * * ===========================================================================
5 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * * ===========================================================================
7 * * Licensed under the Apache License, Version 2.0 (the "License");
8 * * you may not use this file except in compliance with the License.
9 * * You may obtain a copy of the License at
11 * * http://www.apache.org/licenses/LICENSE-2.0
13 * * Unless required by applicable law or agreed to in writing, software
14 * * distributed under the License is distributed on an "AS IS" BASIS,
15 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * * See the License for the specific language governing permissions and
17 * * limitations under the License.
18 * * ============LICENSE_END====================================================
20 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 ******************************************************************************/
25 package org.onap.dmaap.datarouter.provisioning;
27 import java.io.ByteArrayOutputStream;
29 import java.io.FileInputStream;
30 import java.io.InputStream;
31 import java.net.InetAddress;
32 import java.net.UnknownHostException;
33 import java.nio.file.Files;
34 import java.nio.file.Path;
35 import java.nio.file.Paths;
36 import java.nio.file.StandardCopyOption;
37 import java.security.KeyStore;
38 import java.sql.Connection;
39 import java.sql.SQLException;
40 import java.util.ArrayList;
41 import java.util.Arrays;
42 import java.util.Collection;
43 import java.util.HashMap;
45 import java.util.Properties;
47 import java.util.Timer;
48 import java.util.TimerTask;
49 import java.util.TreeSet;
51 import javax.servlet.http.HttpServletResponse;
53 import org.apache.http.HttpEntity;
54 import org.apache.http.HttpResponse;
55 import org.apache.http.client.methods.HttpGet;
56 import org.apache.http.client.methods.HttpPost;
57 import org.apache.http.conn.scheme.Scheme;
58 import org.apache.http.conn.ssl.SSLSocketFactory;
59 import org.apache.http.entity.ByteArrayEntity;
60 import org.apache.http.entity.ContentType;
61 import org.apache.http.impl.client.AbstractHttpClient;
62 import org.apache.http.impl.client.DefaultHttpClient;
63 import org.apache.log4j.Logger;
64 import org.json.JSONArray;
65 import org.json.JSONException;
66 import org.json.JSONObject;
67 import org.json.JSONTokener;
68 import org.onap.dmaap.datarouter.provisioning.beans.EgressRoute;
69 import org.onap.dmaap.datarouter.provisioning.beans.Feed;
70 import org.onap.dmaap.datarouter.provisioning.beans.Group;
71 import org.onap.dmaap.datarouter.provisioning.beans.IngressRoute;
72 import org.onap.dmaap.datarouter.provisioning.beans.NetworkRoute;
73 import org.onap.dmaap.datarouter.provisioning.beans.Parameters;
74 import org.onap.dmaap.datarouter.provisioning.beans.Subscription;
75 import org.onap.dmaap.datarouter.provisioning.beans.Syncable;
76 import org.onap.dmaap.datarouter.provisioning.utils.DB;
77 import org.onap.dmaap.datarouter.provisioning.utils.LogfileLoader;
78 import org.onap.dmaap.datarouter.provisioning.utils.RLEBitSet;
79 import org.onap.dmaap.datarouter.provisioning.utils.URLUtilities;
82 * This class handles synchronization between provisioning servers (PODs). It has three primary functions:
84 * <li>Checking DNS once per minute to see which POD the DNS CNAME points to. The CNAME will point to
85 * the active (master) POD.</li>
86 * <li>On non-master (standby) PODs, fetches provisioning data and logs in order to keep MariaDB in sync.</li>
87 * <li>Providing information to other parts of the system as to the current role (ACTIVE, STANDBY, UNKNOWN)
90 * <p>For this to work correctly, the following code needs to be placed at the beginning of main().</p>
92 * Security.setProperty("networkaddress.cache.ttl", "10");
96 * @version $Id: SynchronizerTask.java,v 1.10 2014/03/21 13:50:10 eby Exp $
98 public class SynchronizerTask extends TimerTask {
101 * This is a singleton -- there is only one SynchronizerTask object in the server
103 private static SynchronizerTask synctask;
106 * This POD is unknown -- not on the list of PODs
108 public static final int UNKNOWN = 0;
110 * This POD is active -- on the list of PODs, and the DNS CNAME points to us
112 public static final int ACTIVE = 1;
114 * This POD is standby -- on the list of PODs, and the DNS CNAME does not point to us
116 public static final int STANDBY = 2;
117 private static final String[] stnames = {"UNKNOWN", "ACTIVE", "STANDBY"};
118 private static final long ONE_HOUR = 60 * 60 * 1000L;
120 private final Logger logger;
121 private final Timer rolex;
122 private final String spooldir;
124 private boolean doFetch;
125 private long nextsynctime;
126 private AbstractHttpClient httpclient = null;
129 * Get the singleton SynchronizerTask object.
131 * @return the SynchronizerTask
133 public static synchronized SynchronizerTask getSynchronizer() {
134 if (synctask == null) {
135 synctask = new SynchronizerTask();
140 @SuppressWarnings("deprecation")
141 private SynchronizerTask() {
142 logger = Logger.getLogger("org.onap.dmaap.datarouter.provisioning.internal");
144 spooldir = (new DB()).getProperties().getProperty("org.onap.dmaap.datarouter.provserver.spooldir");
146 doFetch = true; // start off with a fetch
149 logger.info("PROV5000: Sync task starting, server state is UNKNOWN");
151 Properties props = (new DB()).getProperties();
152 String type = props.getProperty(Main.KEYSTORE_TYPE_PROPERTY, "jks");
153 String store = props.getProperty(Main.KEYSTORE_PATH_PROPERTY);
154 String pass = props.getProperty(Main.KEYSTORE_PASSWORD_PROPERTY);
155 KeyStore keyStore = KeyStore.getInstance(type);
156 FileInputStream instream = new FileInputStream(new File(store));
157 keyStore.load(instream, pass.toCharArray());
160 store = props.getProperty(Main.TRUSTSTORE_PATH_PROPERTY);
161 pass = props.getProperty(Main.TRUSTSTORE_PASSWORD_PROPERTY);
162 KeyStore trustStore = null;
163 if (store != null && store.length() > 0) {
164 trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
165 instream = new FileInputStream(new File(store));
166 trustStore.load(instream, pass.toCharArray());
170 // We are connecting with the node name, but the certificate will have the CNAME
171 // So we need to accept a non-matching certificate name
172 String keystorepass = props.getProperty(
173 Main.KEYSTORE_PASSWORD_PROPERTY); //itrack.web.att.com/browse/DATARTR-6 for changing hard coded passphase ref
174 AbstractHttpClient hc = new DefaultHttpClient();
175 SSLSocketFactory socketFactory =
177 ? new SSLSocketFactory(keyStore, keystorepass)
178 : new SSLSocketFactory(keyStore, keystorepass, trustStore);
179 socketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
180 Scheme sch = new Scheme("https", 443, socketFactory);
181 hc.getConnectionManager().getSchemeRegistry().register(sch);
184 // Run once every 5 seconds to check DNS, etc.
187 String s = props.getProperty("org.onap.dmaap.datarouter.provserver.sync_interval", "5000");
188 interval = Long.parseLong(s);
189 } catch (NumberFormatException e) {
192 rolex.scheduleAtFixedRate(this, 0L, interval);
193 } catch (Exception e) {
194 logger.warn("PROV5005: Problem starting the synchronizer: " + e);
199 * What is the state of this POD?
201 * @return one of ACTIVE, STANDBY, UNKNOWN
203 public int getState() {
208 * Is this the active POD?
210 * @return true if we are active (the master), false otherwise
212 public boolean isActive() {
213 return state == ACTIVE;
217 * This method is used to signal that another POD (the active POD) has sent us a /fetchProv request, and that we
218 * should re-synchronize with the master.
220 public void doFetch() {
225 * Runs once a minute in order to <ol>
226 * <li>lookup DNS names,</li>
227 * <li>determine the state of this POD,</li>
228 * <li>if this is a standby POD, and the fetch flag is set, perform a fetch of state from the active POD.</li>
229 * <li>if this is a standby POD, check if there are any new log records to be replicated.</li>
235 state = lookupState();
236 if (state == STANDBY) {
237 // Only copy provisioning data FROM the active server TO the standby
238 if (doFetch || (System.currentTimeMillis() >= nextsynctime)) {
239 logger.debug("Initiating a sync...");
240 JSONObject jo = readProvisioningJSON();
243 syncFeeds(jo.getJSONArray("feeds"));
244 syncSubs(jo.getJSONArray("subscriptions"));
245 syncGroups(jo.getJSONArray("groups")); //Rally:US708115 - 1610
246 syncParams(jo.getJSONObject("parameters"));
247 // The following will not be present in a version=1.0 provfeed
248 JSONArray ja = jo.optJSONArray("ingress");
250 syncIngressRoutes(ja);
252 JSONObject j2 = jo.optJSONObject("egress");
254 syncEgressRoutes(j2);
256 ja = jo.optJSONArray("routing");
258 syncNetworkRoutes(ja);
261 logger.info("PROV5013: Sync completed.");
262 nextsynctime = System.currentTimeMillis() + ONE_HOUR;
265 // Don't do fetches on non-standby PODs
269 // Fetch DR logs as needed - server to server
270 LogfileLoader lfl = LogfileLoader.getLoader();
272 // Only fetch new logs if the loader is waiting for them.
273 logger.trace("Checking for logs to replicate...");
274 RLEBitSet local = lfl.getBitSet();
275 RLEBitSet remote = readRemoteLoglist();
276 remote.andNot(local);
277 if (!remote.isEmpty()) {
278 logger.debug(" Replicating logs: " + remote);
279 replicateDRLogs(remote);
282 } catch (Exception e) {
283 logger.warn("PROV0020: Caught exception in SynchronizerTask: " + e);
289 * This method is used to lookup the CNAME that points to the active server. It returns 0 (UNKNOWN), 1(ACTIVE), or 2
290 * (STANDBY) to indicate the state of this server.
292 * @return the current state
294 private int lookupState() {
295 int newstate = UNKNOWN;
297 InetAddress myaddr = InetAddress.getLocalHost();
298 if (logger.isTraceEnabled()) {
299 logger.trace("My address: " + myaddr);
301 String thisPod = myaddr.getHostName();
302 Set<String> pods = new TreeSet<>(Arrays.asList(BaseServlet.getPods()));
303 if (pods.contains(thisPod)) {
304 InetAddress pserver = InetAddress.getByName(BaseServlet.activeProvName);
305 newstate = myaddr.equals(pserver) ? ACTIVE : STANDBY;
306 if (logger.isDebugEnabled() && System.currentTimeMillis() >= nextMsg) {
307 logger.debug("Active POD = " + pserver + ", Current state is " + stnames[newstate]);
308 nextMsg = System.currentTimeMillis() + (5 * 60 * 1000L);
311 logger.warn("PROV5003: My name (" + thisPod + ") is missing from the list of provisioning servers.");
313 } catch (UnknownHostException e) {
314 logger.warn("PROV5002: Cannot determine the name of this provisioning server.");
317 if (newstate != state) {
319 .info(String.format("PROV5001: Server state changed from %s to %s", stnames[state], stnames[newstate]));
324 private static long nextMsg = 0; // only display the "Current state" msg every 5 mins.
327 * Synchronize the Feeds in the JSONArray, with the Feeds in the DB.
329 private void syncFeeds(JSONArray ja) {
330 Collection<Syncable> coll = new ArrayList<Syncable>();
331 for (int n = 0; n < ja.length(); n++) {
333 Feed f = new Feed(ja.getJSONObject(n));
335 } catch (Exception e) {
336 logger.warn("PROV5004: Invalid object in feed: " + ja.optJSONObject(n));
339 if (sync(coll, Feed.getAllFeeds())) {
340 BaseServlet.provisioningDataChanged();
345 * Synchronize the Subscriptions in the JSONArray, with the Subscriptions in the DB.
347 private void syncSubs(JSONArray ja) {
348 Collection<Syncable> coll = new ArrayList<Syncable>();
349 for (int n = 0; n < ja.length(); n++) {
351 //Data Router Subscriber HTTPS Relaxation feature USERSTORYID:US674047.
352 JSONObject j = ja.getJSONObject(n);
353 j.put("sync", "true");
354 Subscription s = new Subscription(j);
356 } catch (Exception e) {
357 logger.warn("PROV5004: Invalid object in subscription: " + ja.optJSONObject(n));
360 if (sync(coll, Subscription.getAllSubscriptions())) {
361 BaseServlet.provisioningDataChanged();
366 * Rally:US708115 - Synchronize the Groups in the JSONArray, with the Groups in the DB.
368 private void syncGroups(JSONArray ja) {
369 Collection<Syncable> coll = new ArrayList<Syncable>();
370 for (int n = 0; n < ja.length(); n++) {
372 Group g = new Group(ja.getJSONObject(n));
374 } catch (Exception e) {
375 logger.warn("PROV5004: Invalid object in subscription: " + ja.optJSONObject(n));
378 if (sync(coll, Group.getAllgroups())) {
379 BaseServlet.provisioningDataChanged();
385 * Synchronize the Parameters in the JSONObject, with the Parameters in the DB.
387 private void syncParams(JSONObject jo) {
388 Collection<Syncable> coll = new ArrayList<Syncable>();
389 for (String k : jo.keySet()) {
393 } catch (JSONException e) {
395 v = "" + jo.getInt(k);
396 } catch (JSONException e1) {
397 JSONArray ja = jo.getJSONArray(k);
398 for (int i = 0; i < ja.length(); i++) {
402 v += ja.getString(i);
406 coll.add(new Parameters(k, v));
408 if (sync(coll, Parameters.getParameterCollection())) {
409 BaseServlet.provisioningDataChanged();
410 BaseServlet.provisioningParametersChanged();
414 private void syncIngressRoutes(JSONArray ja) {
415 Collection<Syncable> coll = new ArrayList<Syncable>();
416 for (int n = 0; n < ja.length(); n++) {
418 IngressRoute in = new IngressRoute(ja.getJSONObject(n));
420 } catch (NumberFormatException e) {
421 logger.warn("PROV5004: Invalid object in ingress routes: " + ja.optJSONObject(n));
424 if (sync(coll, IngressRoute.getAllIngressRoutes())) {
425 BaseServlet.provisioningDataChanged();
429 private void syncEgressRoutes(JSONObject jo) {
430 Collection<Syncable> coll = new ArrayList<Syncable>();
431 for (String key : jo.keySet()) {
433 int sub = Integer.parseInt(key);
434 String node = jo.getString(key);
435 EgressRoute er = new EgressRoute(sub, node);
437 } catch (NumberFormatException e) {
438 logger.warn("PROV5004: Invalid subid in egress routes: " + key);
439 } catch (IllegalArgumentException e) {
440 logger.warn("PROV5004: Invalid node name in egress routes: " + key);
443 if (sync(coll, EgressRoute.getAllEgressRoutes())) {
444 BaseServlet.provisioningDataChanged();
448 private void syncNetworkRoutes(JSONArray ja) {
449 Collection<Syncable> coll = new ArrayList<Syncable>();
450 for (int n = 0; n < ja.length(); n++) {
452 NetworkRoute nr = new NetworkRoute(ja.getJSONObject(n));
454 } catch (JSONException e) {
455 logger.warn("PROV5004: Invalid object in network routes: " + ja.optJSONObject(n));
458 if (sync(coll, NetworkRoute.getAllNetworkRoutes())) {
459 BaseServlet.provisioningDataChanged();
463 private boolean sync(Collection<? extends Syncable> newc, Collection<? extends Syncable> oldc) {
464 boolean changes = false;
466 Map<String, Syncable> newmap = getMap(newc);
467 Map<String, Syncable> oldmap = getMap(oldc);
468 Set<String> union = new TreeSet<String>(newmap.keySet());
469 union.addAll(oldmap.keySet());
471 @SuppressWarnings("resource")
472 Connection conn = db.getConnection();
473 for (String n : union) {
474 Syncable newobj = newmap.get(n);
475 Syncable oldobj = oldmap.get(n);
476 if (oldobj == null) {
477 if (logger.isDebugEnabled()) {
478 logger.debug(" Inserting record: " + newobj);
480 newobj.doInsert(conn);
482 } else if (newobj == null) {
483 if (logger.isDebugEnabled()) {
484 logger.debug(" Deleting record: " + oldobj);
486 oldobj.doDelete(conn);
488 } else if (!newobj.equals(oldobj)) {
489 if (logger.isDebugEnabled()) {
490 logger.debug(" Updating record: " + newobj);
492 newobj.doUpdate(conn);
495 * Change Ownership of FEED - 1610, Syncronised with secondary DB.
497 checkChnageOwner(newobj, oldobj);
503 } catch (SQLException e) {
504 logger.warn("PROV5009: problem during sync, exception: " + e);
510 private Map<String, Syncable> getMap(Collection<? extends Syncable> c) {
511 Map<String, Syncable> map = new HashMap<String, Syncable>();
512 for (Syncable v : c) {
513 map.put(v.getKey(), v);
518 /**Change owner of FEED/SUBSCRIPTION*/
520 * Rally US708115 Change Ownership of FEED - 1610
522 private void checkChnageOwner(Syncable newobj, Syncable oldobj) {
523 if (newobj instanceof Feed) {
524 Feed oldfeed = (Feed) oldobj;
525 Feed newfeed = (Feed) newobj;
527 if (!oldfeed.getPublisher().equals(newfeed.getPublisher())) {
528 logger.info("PROV5013 - Previous publisher: " + oldfeed.getPublisher() + ": New publisher-" + newfeed
530 oldfeed.setPublisher(newfeed.getPublisher());
531 oldfeed.changeOwnerShip();
533 } else if (newobj instanceof Subscription) {
534 Subscription oldsub = (Subscription) oldobj;
535 Subscription newsub = (Subscription) newobj;
537 if (!oldsub.getSubscriber().equals(newsub.getSubscriber())) {
538 logger.info("PROV5013 - Previous subscriber: " + oldsub.getSubscriber() + ": New subscriber-" + newsub
540 oldsub.setSubscriber(newsub.getSubscriber());
541 oldsub.changeOwnerShip();
548 * Issue a GET on the peer POD's /internal/prov/ URL to get a copy of its provisioning data.
550 * @return the provisioning data (as a JONObject)
552 private synchronized JSONObject readProvisioningJSON() {
553 String url = URLUtilities.generatePeerProvURL();
554 HttpGet get = new HttpGet(url);
556 HttpResponse response = httpclient.execute(get);
557 int code = response.getStatusLine().getStatusCode();
558 if (code != HttpServletResponse.SC_OK) {
559 logger.warn("PROV5010: readProvisioningJSON failed, bad error code: " + code);
562 HttpEntity entity = response.getEntity();
563 String ctype = entity.getContentType().getValue().trim();
564 if (!ctype.equals(BaseServlet.PROVFULL_CONTENT_TYPE1) && !ctype
565 .equals(BaseServlet.PROVFULL_CONTENT_TYPE2)) {
566 logger.warn("PROV5011: readProvisioningJSON failed, bad content type: " + ctype);
569 return new JSONObject(new JSONTokener(entity.getContent()));
570 } catch (Exception e) {
571 logger.warn("PROV5012: readProvisioningJSON failed, exception: " + e);
574 get.releaseConnection();
579 * Issue a GET on the peer POD's /internal/drlogs/ URL to get an RELBitSet representing the log records available in
580 * the remote database.
584 private RLEBitSet readRemoteLoglist() {
585 RLEBitSet bs = new RLEBitSet();
586 String url = URLUtilities.generatePeerLogsURL();
588 //Fixing if only one Prov is configured, not to give exception to fill logs, return empty bitset.
589 if (url.equals("")) {
594 HttpGet get = new HttpGet(url);
596 HttpResponse response = httpclient.execute(get);
597 int code = response.getStatusLine().getStatusCode();
598 if (code != HttpServletResponse.SC_OK) {
599 logger.warn("PROV5010: readRemoteLoglist failed, bad error code: " + code);
602 HttpEntity entity = response.getEntity();
603 String ctype = entity.getContentType().getValue().trim();
604 if (!ctype.equals("text/plain")) {
605 logger.warn("PROV5011: readRemoteLoglist failed, bad content type: " + ctype);
608 InputStream is = entity.getContent();
609 ByteArrayOutputStream bos = new ByteArrayOutputStream();
611 while ((ch = is.read()) >= 0) {
614 bs.set(bos.toString());
616 } catch (Exception e) {
617 logger.warn("PROV5012: readRemoteLoglist failed, exception: " + e);
620 get.releaseConnection();
626 * Issue a POST on the peer POD's /internal/drlogs/ URL to fetch log records available in the remote database that
627 * we wish to copy to the local database.
629 * @param bs the bitset (an RELBitSet) of log records to fetch
631 private void replicateDRLogs(RLEBitSet bs) {
632 String url = URLUtilities.generatePeerLogsURL();
633 HttpPost post = new HttpPost(url);
635 String t = bs.toString();
636 HttpEntity body = new ByteArrayEntity(t.getBytes(), ContentType.create("text/plain"));
637 post.setEntity(body);
638 if (logger.isDebugEnabled()) {
639 logger.debug("Requesting records: " + t);
642 HttpResponse response = httpclient.execute(post);
643 int code = response.getStatusLine().getStatusCode();
644 if (code != HttpServletResponse.SC_OK) {
645 logger.warn("PROV5010: replicateDRLogs failed, bad error code: " + code);
648 HttpEntity entity = response.getEntity();
649 String ctype = entity.getContentType().getValue().trim();
650 if (!ctype.equals("text/plain")) {
651 logger.warn("PROV5011: replicateDRLogs failed, bad content type: " + ctype);
655 String spoolname = "" + System.currentTimeMillis();
656 Path tmppath = Paths.get(spooldir, spoolname);
657 Path donepath = Paths.get(spooldir, "IN." + spoolname);
658 Files.copy(entity.getContent(), Paths.get(spooldir, spoolname), StandardCopyOption.REPLACE_EXISTING);
659 Files.move(tmppath, donepath, StandardCopyOption.REPLACE_EXISTING);
660 logger.info("Approximately " + bs.cardinality() + " records replicated.");
661 } catch (Exception e) {
662 logger.warn("PROV5012: replicateDRLogs failed, exception: " + e);
664 post.releaseConnection();