tom | 0eb04ca | 2014-08-25 14:34:51 -0700 | [diff] [blame^] | 1 | package net.onrc.onos.of.ctl.debugcounter; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.Arrays; |
| 5 | import java.util.Collections; |
| 6 | import java.util.HashSet; |
| 7 | import java.util.List; |
| 8 | import java.util.Map; |
| 9 | import java.util.Set; |
| 10 | import java.util.concurrent.ConcurrentHashMap; |
| 11 | import java.util.concurrent.atomic.AtomicInteger; |
| 12 | import java.util.concurrent.atomic.AtomicLong; |
| 13 | |
| 14 | import org.slf4j.Logger; |
| 15 | import org.slf4j.LoggerFactory; |
| 16 | |
| 17 | |
| 18 | import com.google.common.collect.Sets; |
| 19 | |
| 20 | |
| 21 | |
| 22 | /** |
| 23 | * This class implements a central store for all counters used for debugging the |
| 24 | * system. For counters based on traffic-type, see ICounterStoreService. |
| 25 | * |
| 26 | */ |
| 27 | public class DebugCounter implements IDebugCounterService { |
| 28 | protected static final Logger log = LoggerFactory.getLogger(DebugCounter.class); |
| 29 | |
| 30 | /** |
| 31 | * registered counters need a counter id. |
| 32 | */ |
| 33 | protected AtomicInteger counterIdCounter = new AtomicInteger(); |
| 34 | |
| 35 | /** |
| 36 | * The counter value. |
| 37 | */ |
| 38 | protected static class MutableLong { |
| 39 | long value = 0; |
| 40 | public void increment() { value += 1; } |
| 41 | public void increment(long incr) { value += incr; } |
| 42 | public long get() { return value; } |
| 43 | public void set(long val) { value = val; } |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * protected class to store counter information. |
| 48 | */ |
| 49 | public static class CounterInfo { |
| 50 | String moduleCounterHierarchy; |
| 51 | String counterDesc; |
| 52 | CounterType ctype; |
| 53 | String moduleName; |
| 54 | String counterHierarchy; |
| 55 | int counterId; |
| 56 | boolean enabled; |
| 57 | String[] metaData; |
| 58 | |
| 59 | public CounterInfo(int counterId, boolean enabled, |
| 60 | String moduleName, String counterHierarchy, |
| 61 | String desc, CounterType ctype, String... metaData) { |
| 62 | this.moduleCounterHierarchy = moduleName + "/" + counterHierarchy; |
| 63 | this.moduleName = moduleName; |
| 64 | this.counterHierarchy = counterHierarchy; |
| 65 | this.counterDesc = desc; |
| 66 | this.ctype = ctype; |
| 67 | this.counterId = counterId; |
| 68 | this.enabled = enabled; |
| 69 | this.metaData = metaData; |
| 70 | } |
| 71 | |
| 72 | public String getModuleCounterHierarchy() { return moduleCounterHierarchy; } |
| 73 | public String getCounterDesc() { return counterDesc; } |
| 74 | public CounterType getCtype() { return ctype; } |
| 75 | public String getModuleName() { return moduleName; } |
| 76 | public String getCounterHierarchy() { return counterHierarchy; } |
| 77 | public int getCounterId() { return counterId; } |
| 78 | public boolean isEnabled() { return enabled; } |
| 79 | public String[] getMetaData() { return this.metaData.clone(); } |
| 80 | } |
| 81 | |
| 82 | //****************** |
| 83 | // Global stores |
| 84 | //****************** |
| 85 | |
| 86 | /** |
| 87 | * Counter info for a debug counter. |
| 88 | */ |
| 89 | public static class DebugCounterInfo { |
| 90 | CounterInfo cinfo; |
| 91 | AtomicLong cvalue; |
| 92 | |
| 93 | public DebugCounterInfo(CounterInfo cinfo) { |
| 94 | this.cinfo = cinfo; |
| 95 | this.cvalue = new AtomicLong(); |
| 96 | } |
| 97 | public CounterInfo getCounterInfo() { |
| 98 | return cinfo; |
| 99 | } |
| 100 | public Long getCounterValue() { |
| 101 | return cvalue.get(); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Global debug-counter storage across all threads. These are |
| 107 | * updated from the local per thread counters by the flush counters method. |
| 108 | */ |
| 109 | private static final DebugCounterInfo[] ALLCOUNTERS = |
| 110 | new DebugCounterInfo[MAX_COUNTERS]; |
| 111 | |
| 112 | |
| 113 | /** |
| 114 | * per module counters, indexed by the module name and storing three levels |
| 115 | * of Counter information in the form of CounterIndexStore. |
| 116 | */ |
| 117 | protected ConcurrentHashMap<String, ConcurrentHashMap<String, CounterIndexStore>> |
| 118 | moduleCounters = new ConcurrentHashMap<String, |
| 119 | ConcurrentHashMap<String, |
| 120 | CounterIndexStore>>(); |
| 121 | |
| 122 | protected static class CounterIndexStore { |
| 123 | int index; |
| 124 | Map<String, CounterIndexStore> nextLevel; |
| 125 | |
| 126 | public CounterIndexStore(int index, Map<String, CounterIndexStore> cis) { |
| 127 | this.index = index; |
| 128 | this.nextLevel = cis; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * fast global cache for counter ids that are currently active. |
| 134 | */ |
| 135 | protected Set<Integer> currentCounters = Collections.newSetFromMap( |
| 136 | new ConcurrentHashMap<Integer, Boolean>()); |
| 137 | |
| 138 | //****************** |
| 139 | // Thread local stores |
| 140 | //****************** |
| 141 | |
| 142 | /** |
| 143 | * Thread local storage of counter info. |
| 144 | */ |
| 145 | protected static class LocalCounterInfo { |
| 146 | boolean enabled; |
| 147 | MutableLong cvalue; |
| 148 | |
| 149 | public LocalCounterInfo(boolean enabled) { |
| 150 | this.enabled = enabled; |
| 151 | this.cvalue = new MutableLong(); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Thread local debug counters used for maintaining counters local to a thread. |
| 157 | */ |
| 158 | protected final ThreadLocal<LocalCounterInfo[]> threadlocalCounters = |
| 159 | new ThreadLocal<LocalCounterInfo[]>() { |
| 160 | @Override |
| 161 | protected LocalCounterInfo[] initialValue() { |
| 162 | return new LocalCounterInfo[MAX_COUNTERS]; |
| 163 | } |
| 164 | }; |
| 165 | |
| 166 | /** |
| 167 | * Thread local cache for counter ids that are currently active. |
| 168 | */ |
| 169 | protected final ThreadLocal<Set<Integer>> threadlocalCurrentCounters = |
| 170 | new ThreadLocal<Set<Integer>>() { |
| 171 | @Override |
| 172 | protected Set<Integer> initialValue() { |
| 173 | return new HashSet<Integer>(); |
| 174 | } |
| 175 | }; |
| 176 | |
| 177 | //******************************* |
| 178 | // IDebugCounter |
| 179 | //******************************* |
| 180 | |
| 181 | protected class CounterImpl implements IDebugCounter { |
| 182 | private final int counterId; |
| 183 | |
| 184 | public CounterImpl(int counterId) { |
| 185 | this.counterId = counterId; |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public void updateCounterWithFlush() { |
| 190 | if (!validCounterId()) { |
| 191 | return; |
| 192 | } |
| 193 | updateCounter(counterId, 1, true); |
| 194 | } |
| 195 | |
| 196 | @Override |
| 197 | public void updateCounterNoFlush() { |
| 198 | if (!validCounterId()) { |
| 199 | return; |
| 200 | } |
| 201 | updateCounter(counterId, 1, false); |
| 202 | } |
| 203 | |
| 204 | @Override |
| 205 | public void updateCounterWithFlush(int incr) { |
| 206 | if (!validCounterId()) { |
| 207 | return; |
| 208 | } |
| 209 | updateCounter(counterId, incr, true); |
| 210 | } |
| 211 | |
| 212 | @Override |
| 213 | public void updateCounterNoFlush(int incr) { |
| 214 | if (!validCounterId()) { |
| 215 | return; |
| 216 | } |
| 217 | updateCounter(counterId, incr, false); |
| 218 | } |
| 219 | |
| 220 | @Override |
| 221 | public long getCounterValue() { |
| 222 | if (!validCounterId()) { |
| 223 | return -1; |
| 224 | } |
| 225 | return ALLCOUNTERS[counterId].cvalue.get(); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Checks if this is a valid counter. |
| 230 | * @return true if the counter id is valid |
| 231 | */ |
| 232 | private boolean validCounterId() { |
| 233 | if (counterId < 0 || counterId >= MAX_COUNTERS) { |
| 234 | log.error("Invalid counterId invoked"); |
| 235 | return false; |
| 236 | } |
| 237 | return true; |
| 238 | } |
| 239 | |
| 240 | } |
| 241 | |
| 242 | //******************************* |
| 243 | // IDebugCounterService |
| 244 | //******************************* |
| 245 | |
| 246 | @Override |
| 247 | public IDebugCounter registerCounter(String moduleName, String counterHierarchy, |
| 248 | String counterDescription, CounterType counterType, |
| 249 | String... metaData) |
| 250 | throws CounterException { |
| 251 | // check if counter already exists |
| 252 | if (!moduleCounters.containsKey(moduleName)) { |
| 253 | moduleCounters.putIfAbsent(moduleName, |
| 254 | new ConcurrentHashMap<String, CounterIndexStore>()); |
| 255 | } |
| 256 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 257 | if (rci.allLevelsFound) { |
| 258 | // counter exists |
| 259 | log.info("Counter exists for {}/{} -- resetting counters", moduleName, |
| 260 | counterHierarchy); |
| 261 | resetCounterHierarchy(moduleName, counterHierarchy); |
| 262 | return new CounterImpl(rci.ctrIds[rci.foundUptoLevel - 1]); |
| 263 | } |
| 264 | // check for validity of counter |
| 265 | if (rci.levels.length > MAX_HIERARCHY) { |
| 266 | String err = "Registry of counterHierarchy " + counterHierarchy + |
| 267 | " exceeds max hierachy " + MAX_HIERARCHY + ".. aborting"; |
| 268 | throw new MaxHierarchyRegistered(err); |
| 269 | } |
| 270 | if (rci.foundUptoLevel < rci.levels.length - 1) { |
| 271 | StringBuilder sb = new StringBuilder(); |
| 272 | for (int i = 0; i <= rci.foundUptoLevel; i++) { |
| 273 | sb.append(rci.levels[i]); |
| 274 | } |
| 275 | String needToRegister = sb.toString(); |
| 276 | String err = "Attempting to register hierarchical counterHierarchy " + |
| 277 | counterHierarchy + " but parts of hierarchy missing. " + |
| 278 | "Please register " + needToRegister + " first"; |
| 279 | throw new MissingHierarchicalLevel(err); |
| 280 | } |
| 281 | |
| 282 | // get a new counter id |
| 283 | int counterId = counterIdCounter.getAndIncrement(); |
| 284 | if (counterId >= MAX_COUNTERS) { |
| 285 | throw new MaxCountersRegistered("max counters reached"); |
| 286 | } |
| 287 | // create storage for counter |
| 288 | boolean enabled = (counterType == CounterType.ALWAYS_COUNT) ? true : false; |
| 289 | CounterInfo ci = new CounterInfo(counterId, enabled, moduleName, |
| 290 | counterHierarchy, counterDescription, |
| 291 | counterType, metaData); |
| 292 | ALLCOUNTERS[counterId] = new DebugCounterInfo(ci); |
| 293 | |
| 294 | // account for the new counter in the module counter hierarchy |
| 295 | addToModuleCounterHierarchy(moduleName, counterId, rci); |
| 296 | |
| 297 | // finally add to active counters |
| 298 | if (enabled) { |
| 299 | currentCounters.add(counterId); |
| 300 | } |
| 301 | return new CounterImpl(counterId); |
| 302 | } |
| 303 | |
| 304 | private void updateCounter(int counterId, int incr, boolean flushNow) { |
| 305 | if (counterId < 0 || counterId >= MAX_COUNTERS) { |
| 306 | return; |
| 307 | } |
| 308 | |
| 309 | LocalCounterInfo[] thiscounters = this.threadlocalCounters.get(); |
| 310 | if (thiscounters[counterId] == null) { |
| 311 | // seeing this counter for the first time in this thread - create local |
| 312 | // store by consulting global store |
| 313 | DebugCounterInfo dc = ALLCOUNTERS[counterId]; |
| 314 | if (dc != null) { |
| 315 | thiscounters[counterId] = new LocalCounterInfo(dc.cinfo.enabled); |
| 316 | if (dc.cinfo.enabled) { |
| 317 | Set<Integer> thisset = this.threadlocalCurrentCounters.get(); |
| 318 | thisset.add(counterId); |
| 319 | } |
| 320 | } else { |
| 321 | log.error("updateCounter seen locally for counter {} but no global" |
| 322 | + "storage exists for it yet .. not updating", counterId); |
| 323 | return; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | // update local store if enabled locally for updating |
| 328 | LocalCounterInfo lc = thiscounters[counterId]; |
| 329 | if (lc.enabled) { |
| 330 | lc.cvalue.increment(incr); |
| 331 | if (flushNow) { |
| 332 | DebugCounterInfo dc = ALLCOUNTERS[counterId]; |
| 333 | if (dc.cinfo.enabled) { |
| 334 | // globally enabled - flush now |
| 335 | dc.cvalue.addAndGet(lc.cvalue.get()); |
| 336 | lc.cvalue.set(0); |
| 337 | } else { |
| 338 | // global counter is disabled - don't flush, disable locally |
| 339 | lc.enabled = false; |
| 340 | Set<Integer> thisset = this.threadlocalCurrentCounters.get(); |
| 341 | thisset.remove(counterId); |
| 342 | } |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | @Override |
| 348 | public void flushCounters() { |
| 349 | LocalCounterInfo[] thiscounters = this.threadlocalCounters.get(); |
| 350 | Set<Integer> thisset = this.threadlocalCurrentCounters.get(); |
| 351 | ArrayList<Integer> temp = new ArrayList<Integer>(); |
| 352 | |
| 353 | for (int counterId : thisset) { |
| 354 | LocalCounterInfo lc = thiscounters[counterId]; |
| 355 | if (lc.cvalue.get() > 0) { |
| 356 | DebugCounterInfo dc = ALLCOUNTERS[counterId]; |
| 357 | if (dc.cinfo.enabled) { |
| 358 | // globally enabled - flush now |
| 359 | dc.cvalue.addAndGet(lc.cvalue.get()); |
| 360 | lc.cvalue.set(0); |
| 361 | } else { |
| 362 | // global counter is disabled - don't flush, disable locally |
| 363 | lc.enabled = false; |
| 364 | temp.add(counterId); |
| 365 | } |
| 366 | } |
| 367 | } |
| 368 | for (int cId : temp) { |
| 369 | thisset.remove(cId); |
| 370 | } |
| 371 | |
| 372 | // At this point it is possible that the thread-local set does not |
| 373 | // include a counter that has been enabled and is present in the global set. |
| 374 | // We need to sync thread-local currently enabled set of counterIds with |
| 375 | // the global set. |
| 376 | Sets.SetView<Integer> sv = Sets.difference(currentCounters, thisset); |
| 377 | for (int counterId : sv) { |
| 378 | if (thiscounters[counterId] != null) { |
| 379 | thiscounters[counterId].enabled = true; |
| 380 | thisset.add(counterId); |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | @Override |
| 386 | public void resetCounterHierarchy(String moduleName, String counterHierarchy) { |
| 387 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 388 | if (!rci.allLevelsFound) { |
| 389 | String missing = rci.levels[rci.foundUptoLevel]; |
| 390 | log.error("Cannot reset counter hierarchy - missing counter {}", missing); |
| 391 | return; |
| 392 | } |
| 393 | // reset at this level |
| 394 | ALLCOUNTERS[rci.ctrIds[rci.foundUptoLevel - 1]].cvalue.set(0); |
| 395 | // reset all levels below |
| 396 | ArrayList<Integer> resetIds = getHierarchyBelow(moduleName, rci); |
| 397 | for (int index : resetIds) { |
| 398 | ALLCOUNTERS[index].cvalue.set(0); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | @Override |
| 403 | public void resetAllCounters() { |
| 404 | RetCtrInfo rci = new RetCtrInfo(); |
| 405 | rci.levels = "".split("/"); |
| 406 | for (String moduleName : moduleCounters.keySet()) { |
| 407 | ArrayList<Integer> resetIds = getHierarchyBelow(moduleName, rci); |
| 408 | for (int index : resetIds) { |
| 409 | ALLCOUNTERS[index].cvalue.set(0); |
| 410 | } |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | @Override |
| 415 | public void resetAllModuleCounters(String moduleName) { |
| 416 | Map<String, CounterIndexStore> target = moduleCounters.get(moduleName); |
| 417 | RetCtrInfo rci = new RetCtrInfo(); |
| 418 | rci.levels = "".split("/"); |
| 419 | |
| 420 | if (target != null) { |
| 421 | ArrayList<Integer> resetIds = getHierarchyBelow(moduleName, rci); |
| 422 | for (int index : resetIds) { |
| 423 | ALLCOUNTERS[index].cvalue.set(0); |
| 424 | } |
| 425 | } else { |
| 426 | if (log.isDebugEnabled()) { |
| 427 | log.debug("No module found with name {}", moduleName); |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | @Override |
| 433 | public void enableCtrOnDemand(String moduleName, String counterHierarchy) { |
| 434 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 435 | if (!rci.allLevelsFound) { |
| 436 | String missing = rci.levels[rci.foundUptoLevel]; |
| 437 | log.error("Cannot enable counter - counter not found {}", missing); |
| 438 | return; |
| 439 | } |
| 440 | // enable specific counter |
| 441 | DebugCounterInfo dc = ALLCOUNTERS[rci.ctrIds[rci.foundUptoLevel - 1]]; |
| 442 | dc.cinfo.enabled = true; |
| 443 | currentCounters.add(dc.cinfo.counterId); |
| 444 | } |
| 445 | |
| 446 | @Override |
| 447 | public void disableCtrOnDemand(String moduleName, String counterHierarchy) { |
| 448 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 449 | if (!rci.allLevelsFound) { |
| 450 | String missing = rci.levels[rci.foundUptoLevel]; |
| 451 | log.error("Cannot disable counter - counter not found {}", missing); |
| 452 | return; |
| 453 | } |
| 454 | // disable specific counter |
| 455 | DebugCounterInfo dc = ALLCOUNTERS[rci.ctrIds[rci.foundUptoLevel - 1]]; |
| 456 | if (dc.cinfo.ctype == CounterType.COUNT_ON_DEMAND) { |
| 457 | dc.cinfo.enabled = false; |
| 458 | dc.cvalue.set(0); |
| 459 | currentCounters.remove(dc.cinfo.counterId); |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | @Override |
| 464 | public List<DebugCounterInfo> getCounterHierarchy(String moduleName, |
| 465 | String counterHierarchy) { |
| 466 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 467 | if (!rci.allLevelsFound) { |
| 468 | String missing = rci.levels[rci.foundUptoLevel]; |
| 469 | log.error("Cannot fetch counter - counter not found {}", missing); |
| 470 | return Collections.emptyList(); |
| 471 | } |
| 472 | ArrayList<DebugCounterInfo> dcilist = new ArrayList<DebugCounterInfo>(); |
| 473 | // get counter and all below it |
| 474 | DebugCounterInfo dc = ALLCOUNTERS[rci.ctrIds[rci.foundUptoLevel - 1]]; |
| 475 | dcilist.add(dc); |
| 476 | ArrayList<Integer> belowIds = getHierarchyBelow(moduleName, rci); |
| 477 | for (int index : belowIds) { |
| 478 | dcilist.add(ALLCOUNTERS[index]); |
| 479 | } |
| 480 | return dcilist; |
| 481 | } |
| 482 | |
| 483 | @Override |
| 484 | public List<DebugCounterInfo> getAllCounterValues() { |
| 485 | List<DebugCounterInfo> dcilist = new ArrayList<DebugCounterInfo>(); |
| 486 | RetCtrInfo rci = new RetCtrInfo(); |
| 487 | rci.levels = "".split("/"); |
| 488 | |
| 489 | for (String moduleName : moduleCounters.keySet()) { |
| 490 | ArrayList<Integer> resetIds = getHierarchyBelow(moduleName, rci); |
| 491 | for (int index : resetIds) { |
| 492 | dcilist.add(ALLCOUNTERS[index]); |
| 493 | } |
| 494 | } |
| 495 | return dcilist; |
| 496 | } |
| 497 | |
| 498 | @Override |
| 499 | public List<DebugCounterInfo> getModuleCounterValues(String moduleName) { |
| 500 | List<DebugCounterInfo> dcilist = new ArrayList<DebugCounterInfo>(); |
| 501 | RetCtrInfo rci = new RetCtrInfo(); |
| 502 | rci.levels = "".split("/"); |
| 503 | |
| 504 | if (moduleCounters.containsKey(moduleName)) { |
| 505 | ArrayList<Integer> resetIds = getHierarchyBelow(moduleName, rci); |
| 506 | for (int index : resetIds) { |
| 507 | dcilist.add(ALLCOUNTERS[index]); |
| 508 | } |
| 509 | } |
| 510 | return dcilist; |
| 511 | } |
| 512 | |
| 513 | @Override |
| 514 | public boolean containsModuleCounterHierarchy(String moduleName, |
| 515 | String counterHierarchy) { |
| 516 | if (!moduleCounters.containsKey(moduleName)) { |
| 517 | return false; |
| 518 | } |
| 519 | RetCtrInfo rci = getCounterId(moduleName, counterHierarchy); |
| 520 | return rci.allLevelsFound; |
| 521 | } |
| 522 | |
| 523 | @Override |
| 524 | public boolean containsModuleName(String moduleName) { |
| 525 | return (moduleCounters.containsKey(moduleName)) ? true : false; |
| 526 | } |
| 527 | |
| 528 | @Override |
| 529 | public List<String> getModuleList() { |
| 530 | List<String> retval = new ArrayList<String>(); |
| 531 | retval.addAll(moduleCounters.keySet()); |
| 532 | return retval; |
| 533 | } |
| 534 | |
| 535 | @Override |
| 536 | public List<String> getModuleCounterList(String moduleName) { |
| 537 | if (!moduleCounters.containsKey(moduleName)) { |
| 538 | return Collections.emptyList(); |
| 539 | } |
| 540 | |
| 541 | List<String> retval = new ArrayList<String>(); |
| 542 | RetCtrInfo rci = new RetCtrInfo(); |
| 543 | rci.levels = "".split("/"); |
| 544 | |
| 545 | ArrayList<Integer> cids = getHierarchyBelow(moduleName, rci); |
| 546 | for (int index : cids) { |
| 547 | retval.add(ALLCOUNTERS[index].cinfo.counterHierarchy); |
| 548 | } |
| 549 | return retval; |
| 550 | } |
| 551 | |
| 552 | //******************************* |
| 553 | // Internal Methods |
| 554 | //******************************* |
| 555 | |
| 556 | protected class RetCtrInfo { |
| 557 | boolean allLevelsFound; // counter indices found all the way down the hierarchy |
| 558 | boolean hierarchical; // true if counterHierarchy is hierarchical |
| 559 | int foundUptoLevel; |
| 560 | int[] ctrIds; |
| 561 | String[] levels; |
| 562 | |
| 563 | public RetCtrInfo() { |
| 564 | ctrIds = new int[MAX_HIERARCHY]; |
| 565 | for (int i = 0; i < MAX_HIERARCHY; i++) { |
| 566 | ctrIds[i] = -1; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | @Override |
| 571 | public int hashCode() { |
| 572 | final int prime = 31; |
| 573 | int result = 1; |
| 574 | result = prime * result + getOuterType().hashCode(); |
| 575 | result = prime * result + (allLevelsFound ? 1231 : 1237); |
| 576 | result = prime * result + Arrays.hashCode(ctrIds); |
| 577 | result = prime * result + foundUptoLevel; |
| 578 | result = prime * result + (hierarchical ? 1231 : 1237); |
| 579 | result = prime * result + Arrays.hashCode(levels); |
| 580 | return result; |
| 581 | } |
| 582 | |
| 583 | @Override |
| 584 | public boolean equals(Object oth) { |
| 585 | if (!(oth instanceof RetCtrInfo)) { |
| 586 | return false; |
| 587 | } |
| 588 | RetCtrInfo other = (RetCtrInfo) oth; |
| 589 | if (other.allLevelsFound != this.allLevelsFound) { |
| 590 | return false; |
| 591 | } |
| 592 | if (other.hierarchical != this.hierarchical) { |
| 593 | return false; |
| 594 | } |
| 595 | if (other.foundUptoLevel != this.foundUptoLevel) { |
| 596 | return false; |
| 597 | } |
| 598 | if (!Arrays.equals(other.ctrIds, this.ctrIds)) { |
| 599 | return false; |
| 600 | } |
| 601 | if (!Arrays.equals(other.levels, this.levels)) { |
| 602 | return false; |
| 603 | } |
| 604 | return true; |
| 605 | } |
| 606 | |
| 607 | private DebugCounter getOuterType() { |
| 608 | return DebugCounter.this; |
| 609 | } |
| 610 | |
| 611 | |
| 612 | |
| 613 | } |
| 614 | |
| 615 | protected RetCtrInfo getCounterId(String moduleName, String counterHierarchy) { |
| 616 | RetCtrInfo rci = new RetCtrInfo(); |
| 617 | Map<String, CounterIndexStore> templevel = moduleCounters.get(moduleName); |
| 618 | rci.levels = counterHierarchy.split("/"); |
| 619 | if (rci.levels.length > 1) { |
| 620 | rci.hierarchical = true; |
| 621 | } |
| 622 | if (templevel == null) { |
| 623 | log.error("moduleName {} does not exist in debugCounters", moduleName); |
| 624 | return rci; |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | if (rci.levels.length > MAX_HIERARCHY) { |
| 629 | // chop off all array elems greater that MAX_HIERARCHY |
| 630 | String[] temp = new String[MAX_HIERARCHY]; |
| 631 | System.arraycopy(rci.levels, 0, temp, 0, MAX_HIERARCHY); |
| 632 | rci.levels = temp; |
| 633 | } |
| 634 | */ |
| 635 | for (int i = 0; i < rci.levels.length; i++) { |
| 636 | if (templevel != null) { |
| 637 | CounterIndexStore cis = templevel.get(rci.levels[i]); |
| 638 | if (cis == null) { |
| 639 | // could not find counterHierarchy part at this level |
| 640 | break; |
| 641 | } else { |
| 642 | rci.ctrIds[i] = cis.index; |
| 643 | templevel = cis.nextLevel; |
| 644 | rci.foundUptoLevel++; |
| 645 | if (i == rci.levels.length - 1) { |
| 646 | rci.allLevelsFound = true; |
| 647 | } |
| 648 | } |
| 649 | } else { |
| 650 | // there are no more levels, which means that some part of the |
| 651 | // counterHierarchy has no corresponding map |
| 652 | break; |
| 653 | } |
| 654 | } |
| 655 | return rci; |
| 656 | } |
| 657 | |
| 658 | protected void addToModuleCounterHierarchy(String moduleName, int counterId, |
| 659 | RetCtrInfo rci) { |
| 660 | Map<String, CounterIndexStore> target = moduleCounters.get(moduleName); |
| 661 | if (target == null) { |
| 662 | return; |
| 663 | } |
| 664 | CounterIndexStore cis = null; |
| 665 | |
| 666 | for (int i = 0; i < rci.foundUptoLevel; i++) { |
| 667 | cis = target.get(rci.levels[i]); |
| 668 | target = cis.nextLevel; |
| 669 | } |
| 670 | if (cis != null) { |
| 671 | if (cis.nextLevel == null) { |
| 672 | cis.nextLevel = new ConcurrentHashMap<String, CounterIndexStore>(); |
| 673 | } |
| 674 | cis.nextLevel.put(rci.levels[rci.foundUptoLevel], |
| 675 | new CounterIndexStore(counterId, null)); |
| 676 | } else { |
| 677 | target.put(rci.levels[rci.foundUptoLevel], |
| 678 | new CounterIndexStore(counterId, null)); |
| 679 | } |
| 680 | } |
| 681 | |
| 682 | // given a partial hierarchical counter, return the rest of the hierarchy |
| 683 | protected ArrayList<Integer> getHierarchyBelow(String moduleName, RetCtrInfo rci) { |
| 684 | Map<String, CounterIndexStore> target = moduleCounters.get(moduleName); |
| 685 | CounterIndexStore cis = null; |
| 686 | ArrayList<Integer> retval = new ArrayList<Integer>(); |
| 687 | if (target == null) { |
| 688 | return retval; |
| 689 | } |
| 690 | |
| 691 | // get to the level given |
| 692 | for (int i = 0; i < rci.foundUptoLevel; i++) { |
| 693 | cis = target.get(rci.levels[i]); |
| 694 | target = cis.nextLevel; |
| 695 | } |
| 696 | |
| 697 | if (target == null || rci.foundUptoLevel == MAX_HIERARCHY) { |
| 698 | // no more levels |
| 699 | return retval; |
| 700 | } else { |
| 701 | // recursively get all ids |
| 702 | getIdsAtLevel(target, retval, rci.foundUptoLevel + 1); |
| 703 | } |
| 704 | |
| 705 | return retval; |
| 706 | } |
| 707 | |
| 708 | protected void getIdsAtLevel(Map<String, CounterIndexStore> hcy, |
| 709 | ArrayList<Integer> retval, int level) { |
| 710 | if (level > MAX_HIERARCHY) { |
| 711 | return; |
| 712 | } |
| 713 | if (hcy == null || retval == null) { |
| 714 | return; |
| 715 | } |
| 716 | |
| 717 | // Can return the counter names as well but for now ids are enough. |
| 718 | for (CounterIndexStore cistemp : hcy.values()) { |
| 719 | retval.add(cistemp.index); // value at this level |
| 720 | if (cistemp.nextLevel != null) { |
| 721 | getIdsAtLevel(cistemp.nextLevel, retval, level + 1); |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | } |