auth/auth-cass/src/main/java/org/onap/aaf/auth/dao/cass/CacheInfoDAO.java

   1 /**
   2  * ============LICENSE_START====================================================
   3  * org.onap.aaf
   4  * ===========================================================================
   5  * Copyright (c) 2018 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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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====================================================
  19  *
  20  */
  21
  22 package org.onap.aaf.auth.dao.cass;
  23
  24 import java.io.IOException;
  25 import java.net.HttpURLConnection;
  26 import java.net.URI;
  27 import java.util.Date;
  28 import java.util.HashMap;
  29 import java.util.HashSet;
  30 import java.util.Map;
  31 import java.util.Map.Entry;
  32 import java.util.concurrent.BlockingQueue;
  33 import java.util.concurrent.ConcurrentHashMap;
  34 import java.util.concurrent.LinkedBlockingQueue;
  35 import java.util.concurrent.TimeUnit;
  36
  37 import org.onap.aaf.auth.dao.AbsCassDAO;
  38 import org.onap.aaf.auth.dao.CIDAO;
  39 import org.onap.aaf.auth.dao.CassAccess;
  40 import org.onap.aaf.auth.dao.CassDAOImpl;
  41 import org.onap.aaf.auth.dao.Loader;
  42 import org.onap.aaf.auth.env.AuthzEnv;
  43 import org.onap.aaf.auth.env.AuthzTrans;
  44 import org.onap.aaf.auth.layer.Result;
  45 import org.onap.aaf.cadi.CadiException;
  46 import org.onap.aaf.cadi.SecuritySetter;
  47 import org.onap.aaf.cadi.client.Future;
  48 import org.onap.aaf.cadi.client.Rcli;
  49 import org.onap.aaf.cadi.client.Retryable;
  50 import org.onap.aaf.cadi.http.HMangr;
  51 import org.onap.aaf.misc.env.APIException;
  52 import org.onap.aaf.misc.env.Env;
  53 import org.onap.aaf.misc.env.TimeTaken;
  54 import org.onap.aaf.misc.env.Trans;
  55
  56 import com.datastax.driver.core.BoundStatement;
  57 import com.datastax.driver.core.Cluster;
  58 import com.datastax.driver.core.PreparedStatement;
  59 import com.datastax.driver.core.ResultSet;
  60 import com.datastax.driver.core.Row;
  61 import com.datastax.driver.core.exceptions.DriverException;
  62
  63 public class CacheInfoDAO extends CassDAOImpl<AuthzTrans,CacheInfoDAO.Data> implements CIDAO<AuthzTrans> {
  64
  65     private static final String TABLE = "cache";
  66     public static final Map<String,Date[]> info = new ConcurrentHashMap<>();
  67
  68     private static CacheUpdate cacheUpdate;
  69
  70     // Hold current time stamps from Tables
  71     private final Date startTime;
  72     private PreparedStatement psCheck;
  73
  74     public CacheInfoDAO(AuthzTrans trans, Cluster cluster, String keyspace) throws APIException, IOException {
  75         super(trans, CacheInfoDAO.class.getSimpleName(),cluster,keyspace,Data.class,TABLE,readConsistency(trans,TABLE), writeConsistency(trans,TABLE));
  76         startTime = new Date();
  77         init(trans);
  78     }
  79
  80     public CacheInfoDAO(AuthzTrans trans, AbsCassDAO<AuthzTrans,?> aDao) throws APIException, IOException {
  81         super(trans, CacheInfoDAO.class.getSimpleName(),aDao,Data.class,TABLE,readConsistency(trans,TABLE), writeConsistency(trans,TABLE));
  82         startTime = new Date();
  83         init(trans);
  84     }
  85
  86
  87     //////////////////////////////////////////
  88     // Data Definition, matches Cassandra DM
  89     //////////////////////////////////////////
  90     private static final int KEYLIMIT = 2;
  91     /**
  92      * @author Jonathan
  93      */
  94     public static class Data {
  95         public Data() {
  96             name = null;
  97             touched = null;
  98         }
  99         public Data(String name, int seg) {
 100             this.name = name;
 101             this.seg = seg;
 102             touched = null;
 103         }
 104
 105         public String        name;
 106         public int            seg;
 107         public Date            touched;
 108     }
 109
 110     private static class InfoLoader extends Loader<Data> {
 111         public static final InfoLoader dflt = new InfoLoader(KEYLIMIT);
 112
 113         public InfoLoader(int keylimit) {
 114             super(keylimit);
 115         }
 116
 117         @Override
 118         public Data load(Data data, Row row) {
 119             // Int more efficient
 120             data.name = row.getString(0);
 121             data.seg = row.getInt(1);
 122             data.touched = row.getTimestamp(2);
 123             return data;
 124         }
 125
 126         @Override
 127         protected void key(Data data, int _idx, Object[] obj) {
 128                 int idx = _idx;
 129
 130             obj[idx]=data.name;
 131             obj[++idx]=data.seg;
 132         }
 133
 134         @Override
 135         protected void body(Data data, int idx, Object[] obj) {
 136             obj[idx]=data.touched;
 137         }
 138     }
 139
 140     public static synchronized <T extends Trans> void startUpdate(AuthzEnv env, HMangr hman, SecuritySetter<HttpURLConnection> ss, String ip, int port) {
 141         if (cacheUpdate==null) {
 142             Thread t= new Thread(cacheUpdate = new CacheUpdate(env,hman,ss, ip,port),"CacheInfo Update Thread");
 143             t.setDaemon(true);
 144             t.start();
 145         }
 146     }
 147
 148     public static<T extends Trans> void stopUpdate() {
 149         if (cacheUpdate!=null) {
 150             cacheUpdate.go=false;
 151         }
 152     }
 153
 154     private final static class CacheUpdate extends Thread {
 155         public static BlockingQueue<Transfer> notifyDQ = new LinkedBlockingQueue<Transfer>(2000);
 156
 157         private static final String VOID_CT="application/Void+json;q=1.0;charset=utf-8;version=2.0,application/json;q=1.0;version=2.0,*/*;q=1.0";
 158         private AuthzEnv env;
 159         private HMangr hman;
 160         private SecuritySetter<HttpURLConnection> ss;
 161         private final String authority;
 162         public boolean go = true;
 163
 164         public CacheUpdate(AuthzEnv env, HMangr hman, SecuritySetter<HttpURLConnection> ss, String ip, int port) {
 165             this.env = env;
 166             this.hman = hman;
 167             this.ss = ss;
 168
 169             this.authority = ip+':'+port;
 170         }
 171
 172         private static class Transfer {
 173             public String table;
 174             public int segs[];
 175             public Transfer(String table, int[] segs)  {
 176                 this.table = table;
 177                 this.segs = segs;
 178             }
 179         }
 180         private class CacheClear extends Retryable<Integer> {
 181             public int total=0;
 182             private AuthzTrans trans;
 183             private String type;
 184             private String segs;
 185
 186             public CacheClear(AuthzTrans trans) {
 187                 this.trans = trans;
 188             }
 189
 190             public void set(Entry<String, IntHolder> es) {
 191                 type = es.getKey();
 192                 segs = es.getValue().toString();
 193             }
 194
 195         @Override
 196             public Integer code(Rcli<?> client) throws APIException, CadiException {
 197                 URI to = client.getURI();
 198                 if (!to.getAuthority().equals(authority)) {
 199                     Future<Void> f = client.delete("/mgmt/cache/"+type+'/'+segs,VOID_CT);
 200                     if (f.get(hman.readTimeout())) {
 201                         ++total;
 202                     } else {
 203                         trans.error().log("Error During AAF Peer Notify",f.code(),f.body());
 204                     }
 205                 }
 206                 return total;
 207             }
 208         }
 209
 210         private class IntHolder {
 211             private int[] raw;
 212             HashSet<Integer> set;
 213
 214             public IntHolder(int ints[]) {
 215                 raw = ints;
 216                 set = null;
 217             }
 218             public void add(int[] ints) {
 219                 if (set==null) {
 220                     set = new HashSet<>();
 221
 222                     for (int i=0;i<raw.length;++i) {
 223                         set.add(raw[i]);
 224                     }
 225                 }
 226                 for (int i=0;i<ints.length;++i) {
 227                     set.add(ints[i]);
 228                 }
 229             }
 230
 231             @Override
 232             public String toString() {
 233                 StringBuilder sb = new StringBuilder();
 234                 boolean first = true;
 235                 if (set==null) {
 236                     for (int i : raw) {
 237                         if (first) {
 238                             first=false;
 239                         } else {
 240                             sb.append(',');
 241                         }
 242                         sb.append(i);
 243                     }
 244                 } else {
 245                     for (Integer i : set) {
 246                         if (first) {
 247                             first=false;
 248                         } else {
 249                             sb.append(',');
 250                         }
 251                         sb.append(i);
 252                     }
 253                 }
 254                 return sb.toString();
 255             }
 256         }
 257
 258         @Override
 259         public void run() {
 260             do {
 261                 try {
 262                     Transfer data = notifyDQ.poll(4,TimeUnit.SECONDS);
 263                     if (data==null) {
 264                         continue;
 265                     }
 266
 267                     int count = 0;
 268                     CacheClear cc = null;
 269                     Map<String,IntHolder> gather = null;
 270                     AuthzTrans trans = null;
 271                     long start=0;
 272                     // Do a block poll first
 273                     do {
 274                         if (gather==null) {
 275                             start = System.nanoTime();
 276                             trans = env.newTransNoAvg();
 277                             cc = new CacheClear(trans);
 278                             gather = new HashMap<>();
 279                         }
 280                         IntHolder prev = gather.get(data.table);
 281                         if (prev==null) {
 282                             gather.put(data.table,new IntHolder(data.segs));
 283                         } else {
 284                             prev.add(data.segs);
 285                         }
 286                         // continue while there is data
 287                     } while ((data = notifyDQ.poll())!=null);
 288                     if (gather!=null) {
 289                         for (Entry<String, IntHolder> es : gather.entrySet()) {
 290                             cc.set(es);
 291                             try {
 292                                 if (hman.all(ss, cc, false)!=null) {
 293                                     ++count;
 294                                 }
 295                             } catch (Exception e) {
 296                                 trans.error().log(e, "Error on Cache Update");
 297                             }
 298                         }
 299                         if (env.debug().isLoggable()) {
 300                             float millis = (System.nanoTime()-start)/1000000f;
 301                             StringBuilder sb = new StringBuilder("Direct Cache Refresh: ");
 302                             sb.append("Updated ");
 303                             sb.append(count);
 304                             if (count==1) {
 305                                 sb.append(" entry for ");
 306                             } else {
 307                                 sb.append(" entries for ");
 308                             }
 309                             int peers = count<=0?0:cc.total/count;
 310                             sb.append(peers);
 311                             sb.append(" client");
 312                             if (peers!=1) {
 313                                 sb.append('s');
 314                             }
 315                             sb.append(" in ");
 316                             sb.append(millis);
 317                             sb.append("ms");
 318                             trans.auditTrail(0, sb, Env.REMOTE);
 319                             env.debug().log(sb);
 320                         }
 321                     }
 322                 } catch (InterruptedException e1) {
 323                     go = false;
 324                     Thread.currentThread().interrupt();
 325                 }
 326             } while (go);
 327         }
 328     }
 329
 330     private void init(AuthzTrans trans) throws APIException, IOException {
 331
 332         String[] helpers = setCRUD(trans, TABLE, Data.class, InfoLoader.dflt);
 333         psCheck = getSession(trans).prepare(SELECT_SP +  helpers[FIELD_COMMAS] + " FROM " + TABLE);
 334
 335         disable(CRUD.create);
 336         disable(CRUD.delete);
 337     }
 338
 339     /* (non-Javadoc)
 340      * @see org.onap.aaf.auth.dao.cass.CIDAO#touch(org.onap.aaf.auth.env.test.AuthzTrans, java.lang.String, int)
 341      */
 342
 343     @Override
 344     public Result<Void> touch(AuthzTrans trans, String name, int ... seg) {
 345         /////////////
 346         // Direct Service Cache Invalidation
 347         /////////////
 348         // ConcurrentQueues are open-ended.  We don't want any Memory leaks
 349         // Note: we keep a separate counter, because "size()" on a Linked Queue is expensive
 350         if (cacheUpdate!=null) {
 351             try {
 352                 if (!CacheUpdate.notifyDQ.offer(new CacheUpdate.Transfer(name, seg),2,TimeUnit.SECONDS)) {
 353                     trans.error().log("Cache Notify Queue is not accepting messages, bouncing may be appropriate" );
 354                 }
 355             } catch (InterruptedException e) {
 356                 trans.error().log("Cache Notify Queue posting was interrupted" );
 357                 Thread.currentThread().interrupt();
 358             }
 359         }
 360
 361         /////////////
 362         // Table Based Cache Invalidation (original)
 363         /////////////
 364         // Note: Save time with multiple Sequence Touches, but PreparedStmt doesn't support IN
 365         StringBuilder start = new StringBuilder("CacheInfoDAO Touch segments ");
 366         start.append(name);
 367         start.append(": ");
 368         StringBuilder sb = new StringBuilder("BEGIN BATCH\n");
 369         boolean first = true;
 370         for (int s : seg) {
 371             sb.append(UPDATE_SP);
 372             sb.append(TABLE);
 373             sb.append(" SET touched=dateof(now()) WHERE name = '");
 374             sb.append(name);
 375             sb.append("' AND seg = ");
 376             sb.append(s);
 377             sb.append(";\n");
 378             if (first) {
 379                 first =false;
 380             } else {
 381                 start.append(',');
 382             }
 383             start.append(s);
 384         }
 385         sb.append("APPLY BATCH;");
 386         TimeTaken tt = trans.start(start.toString(),Env.REMOTE);
 387         try {
 388             getSession(trans).executeAsync(sb.toString());
 389         } catch (DriverException | APIException | IOException e) {
 390             reportPerhapsReset(trans,e);
 391             return Result.err(Result.ERR_Backend, CassAccess.ERR_ACCESS_MSG);
 392         } finally {
 393             tt.done();
 394         }
 395         return Result.ok();
 396     }
 397
 398     /* (non-Javadoc)
 399      * @see org.onap.aaf.auth.dao.cass.CIDAO#check(org.onap.aaf.auth.env.test.AuthzTrans)
 400      */
 401     @Override
 402     public Result<Void> check(AuthzTrans trans) {
 403         ResultSet rs;
 404         TimeTaken tt = trans.start("Check Table Timestamps",Env.REMOTE);
 405         try {
 406             rs = getSession(trans).execute(new BoundStatement(psCheck));
 407         } catch (DriverException | APIException | IOException e) {
 408             reportPerhapsReset(trans,e);
 409             return Result.err(Result.ERR_Backend, CassAccess.ERR_ACCESS_MSG);
 410         } finally {
 411             tt.done();
 412         }
 413
 414         String lastName = null;
 415         Date[] dates = null;
 416         for (Row row : rs.all()) {
 417             String name = row.getString(0);
 418             int seg = row.getInt(1);
 419             if (!name.equals(lastName)) {
 420                 dates = info.get(name);
 421                 lastName=name;
 422             }
 423             if (dates==null) {
 424                 dates=new Date[seg+1];
 425                 info.put(name,dates);
 426             } else if (dates.length<=seg) {
 427                 Date[] temp = new Date[seg+1];
 428                 System.arraycopy(dates, 0, temp, 0, dates.length);
 429                 dates = temp;
 430                 info.put(name, dates);
 431             }
 432             Date temp = row.getTimestamp(2);
 433             if (dates[seg]==null || dates[seg].before(temp)) {
 434                 dates[seg]=temp;
 435             }
 436         }
 437         return Result.ok();
 438     }
 439
 440     /* (non-Javadoc)
 441      * @see org.onap.aaf.auth.dao.cass.CIDAO#get(java.lang.String, int)
 442      */
 443     @Override
 444     public Date get(AuthzTrans trans, String table, int seg) {
 445         Date[] dates = info.get(table);
 446         if (dates==null) {
 447             dates = new Date[seg+1];
 448             touch(trans,table, seg);
 449         } else if (dates.length<=seg) {
 450             Date[] temp = new Date[seg+1];
 451             System.arraycopy(dates, 0, temp, 0, dates.length);
 452             dates = temp;
 453         }
 454         Date rv = dates[seg];
 455         if (rv==null) {
 456             rv=dates[seg]=startTime;
 457         }
 458         return rv;
 459     }
 460
 461     @Override
 462     protected void wasModified(AuthzTrans trans, CRUD modified, Data data, String ... override) {
 463         // Do nothing
 464     }
 465
 466 }