| 1 | package com.hammurapi.common.concurrent; |
| 2 | |
| 3 | import java.util.Arrays; |
| 4 | import java.util.HashSet; |
| 5 | import java.util.Map; |
| 6 | import java.util.Set; |
| 7 | import java.util.concurrent.Callable; |
| 8 | import java.util.concurrent.ExecutorService; |
| 9 | import java.util.concurrent.Future; |
| 10 | import java.util.concurrent.ScheduledExecutorService; |
| 11 | import java.util.concurrent.TimeUnit; |
| 12 | import java.util.concurrent.locks.ReadWriteLock; |
| 13 | |
| 14 | import com.hammurapi.common.Context; |
| 15 | import com.hammurapi.convert.Converter; |
| 16 | import com.hammurapi.convert.ConvertingService; |
| 17 | |
| 18 | /** |
| 19 | * |
| 20 | * @author Pavel Vlasov |
| 21 | * |
| 22 | * @param <KP> Key path |
| 23 | * @param <KE> Key path element |
| 24 | */ |
| 25 | public abstract class AbstractPropertySet<KP,KE> implements PropertySet<KP>, ReadWriteLock { |
| 26 | |
| 27 | protected Converter converter; |
| 28 | protected ExecutorService executorService; |
| 29 | protected PropertySet<KP>[] shadows; |
| 30 | // protected ClassLoader classLoader; |
| 31 | protected Context context; |
| 32 | |
| 33 | private PropertySet<KP> shadowPropertySet = new PropertySet<KP>() { |
| 34 | |
| 35 | @Override |
| 36 | public <T> T getAdapter(Class<T> type, Context context) { |
| 37 | throw new UnsupportedOperationException(); // Maybe implement. |
| 38 | } |
| 39 | |
| 40 | @Override |
| 41 | public Set<KP> keySet() { |
| 42 | HashSet<KP> ret = new HashSet<KP>(); |
| 43 | |
| 44 | for (PropertySet<KP> ch: shadows) { |
| 45 | if (ch!=null) { |
| 46 | ret.addAll(ch.keySet()); |
| 47 | } |
| 48 | } |
| 49 | return ret; |
| 50 | } |
| 51 | |
| 52 | @Override |
| 53 | public PropertySet<KP> subset(KP prefix) { |
| 54 | return new AbstractSubSet<KP>(this, prefix) { |
| 55 | |
| 56 | @Override |
| 57 | protected KP buildPath(KP prefix, KP key) { |
| 58 | return AbstractPropertySet.this.buildPath(prefix, key); |
| 59 | } |
| 60 | |
| 61 | }; |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public void remove(KP key) { |
| 66 | throw new UnsupportedOperationException(); |
| 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public void clear() { |
| 71 | throw new UnsupportedOperationException(); |
| 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public void mount(KP prefix, PropertySet<KP> source) { |
| 76 | throw new UnsupportedOperationException(); |
| 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public void unmount(KP prefix) { |
| 81 | throw new UnsupportedOperationException(); |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public void setAll(PropertySet<KP> source) { |
| 86 | throw new UnsupportedOperationException(); |
| 87 | } |
| 88 | |
| 89 | @Override |
| 90 | public Object get(KP key) { |
| 91 | for (PropertySet<KP> ch: shadows) { |
| 92 | if (ch!=null) { |
| 93 | Object ret = ch.get(key); |
| 94 | if (ret!=null) { |
| 95 | return ret; |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | return null; |
| 100 | } |
| 101 | |
| 102 | @Override |
| 103 | public Object get(KP key, Object defaultValue) { |
| 104 | for (PropertySet<KP> ch: shadows) { |
| 105 | if (ch!=null) { |
| 106 | Object ret = ch.get(key); |
| 107 | if (ret!=null) { |
| 108 | return ret; |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | return defaultValue; |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public <T> T get(KP key, Class<T> type) { |
| 117 | for (PropertySet<KP> ch: shadows) { |
| 118 | if (ch!=null) { |
| 119 | T ret = ch.get(key, type); |
| 120 | if (ret!=null) { |
| 121 | return ret; |
| 122 | } |
| 123 | } |
| 124 | } |
| 125 | return null; |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public <T> T get(KP key, Class<T> type, T defaultValue) { |
| 130 | for (PropertySet<KP> ch: shadows) { |
| 131 | if (ch!=null) { |
| 132 | T ret = ch.get(key, type); |
| 133 | if (ret!=null) { |
| 134 | return ret; |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | return defaultValue; |
| 139 | } |
| 140 | |
| 141 | @Override |
| 142 | public void set(KP key, Object value) { |
| 143 | throw new UnsupportedOperationException(); |
| 144 | |
| 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public void setInvocable(KP key, Invocable<PropertySet<KP>, ?, KP> invocable) { |
| 149 | throw new UnsupportedOperationException(); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | public void cook(KP key, Callable<?> callable) { |
| 154 | throw new UnsupportedOperationException(); |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public void cook(KP key, Callable<?> callable, long delay, TimeUnit timeUnit) { |
| 159 | throw new UnsupportedOperationException(); |
| 160 | } |
| 161 | |
| 162 | @Override |
| 163 | public void cooking(KP key, Future<?> future) { |
| 164 | throw new UnsupportedOperationException(); |
| 165 | } |
| 166 | |
| 167 | @Override |
| 168 | public void lazy(KP key, Callable<?> callable) { |
| 169 | throw new UnsupportedOperationException(); |
| 170 | } |
| 171 | |
| 172 | @Override |
| 173 | public void cancel(KP key) { |
| 174 | throw new UnsupportedOperationException(); |
| 175 | } |
| 176 | |
| 177 | @Override |
| 178 | public void cancelAll() { |
| 179 | throw new UnsupportedOperationException(); |
| 180 | } |
| 181 | |
| 182 | @Override |
| 183 | public Object invoke(KP key, Object... args) { |
| 184 | throw new UnsupportedOperationException(); |
| 185 | } |
| 186 | |
| 187 | @Override |
| 188 | public Object shadowInvoke(KP key, Object... args) { |
| 189 | throw new UnsupportedOperationException(); |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public Object shadowGet(KP key) { |
| 194 | throw new UnsupportedOperationException(); |
| 195 | } |
| 196 | |
| 197 | @Override |
| 198 | public Object shadowGet(KP key, Object defaultValue) { |
| 199 | throw new UnsupportedOperationException(); |
| 200 | } |
| 201 | |
| 202 | @Override |
| 203 | public <T> T shadowGet(KP key, Class<T> type) { |
| 204 | throw new UnsupportedOperationException(); |
| 205 | } |
| 206 | |
| 207 | @Override |
| 208 | public <T> T shadowGet(KP key, Class<T> type, T defaultValue) { |
| 209 | throw new UnsupportedOperationException(); |
| 210 | } |
| 211 | |
| 212 | }; |
| 213 | |
| 214 | /** |
| 215 | * @return Store for values. |
| 216 | */ |
| 217 | protected abstract Map<KE, Object> getValueStore(); |
| 218 | |
| 219 | /** |
| 220 | * |
| 221 | * @return |
| 222 | */ |
| 223 | protected abstract Map<KE, AbstractPropertySet<KP,KE>> getSubSetStore(); |
| 224 | |
| 225 | /** |
| 226 | * Creates a property set which shares lock and chain with this one. |
| 227 | * @return |
| 228 | */ |
| 229 | protected abstract AbstractPropertySet<KP,KE> newInstance(KE key); |
| 230 | |
| 231 | protected abstract Map<KE, PropertySet<KP>> getMounts(); |
| 232 | |
| 233 | protected AbstractPropertySet( |
| 234 | ExecutorService executorService, |
| 235 | Converter converter, |
| 236 | // ClassLoader classLoader, |
| 237 | Context context, |
| 238 | PropertySet<KP>... shadows) { |
| 239 | this.executorService = executorService; |
| 240 | this.converter = converter==null ? ConvertingService.CONVERTER : converter; |
| 241 | // this.classLoader = classLoader==null ? getClass().getClassLoader() : classLoader; |
| 242 | this.context = context; |
| 243 | this.shadows = shadows; |
| 244 | } |
| 245 | |
| 246 | protected abstract KP buildPath(int startIdx, Object... elements); |
| 247 | |
| 248 | protected KP buildPath(Object... elements) { |
| 249 | return buildPath(0, elements); |
| 250 | } |
| 251 | |
| 252 | protected abstract KP buildPath(KP prefix, Object... elements); |
| 253 | |
| 254 | protected abstract KP buildPath(KE prefix, KP suffix); |
| 255 | |
| 256 | protected abstract KE[] tokenize(KP path); |
| 257 | |
| 258 | /** |
| 259 | * Versions object for forward-only change propagation purposes. |
| 260 | * @param <T> |
| 261 | * @param source |
| 262 | * @return |
| 263 | */ |
| 264 | protected abstract <T> T version(T source); |
| 265 | |
| 266 | @Override |
| 267 | public Set<KP> keySet() { |
| 268 | readLock().lock(); |
| 269 | HashSet<KP> ret = new HashSet<KP>(); |
| 270 | try { |
| 271 | for (KE key: getValueStore().keySet()) { |
| 272 | ret.add(buildPath(key)); |
| 273 | } |
| 274 | |
| 275 | for (Map.Entry<KE, PropertySet<KP>> entry: getMounts().entrySet()) { |
| 276 | for (KP path: entry.getValue().keySet()) { |
| 277 | ret.add(buildPath(entry.getKey(), path)); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | for (Map.Entry<KE, AbstractPropertySet<KP, KE>> entry: getSubSetStore().entrySet()) { |
| 282 | if (!getMounts().containsKey(entry.getKey())) { // If not shadowed |
| 283 | for (KP path: entry.getValue().keySet()) { |
| 284 | ret.add(buildPath(entry.getKey(), path)); |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | } finally { |
| 289 | readLock().unlock(); |
| 290 | } |
| 291 | |
| 292 | ret.addAll(shadowPropertySet.keySet()); |
| 293 | return ret; |
| 294 | } |
| 295 | |
| 296 | @Override |
| 297 | public PropertySet<KP> subset(KP prefix) { |
| 298 | writeLock().lock(); |
| 299 | try { |
| 300 | return subset(tokenize(prefix),0,true); |
| 301 | } finally { |
| 302 | writeLock().unlock(); |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | protected PropertySet<KP> subset(KE[] prefix, int idx, boolean create) { |
| 307 | PropertySet<KP> mount = getMounts().get(prefix[idx]); |
| 308 | if (mount!=null) { |
| 309 | if (prefix.length==idx+1) { |
| 310 | return mount; |
| 311 | } |
| 312 | |
| 313 | return mount.subset(buildPath(idx+1, prefix)); |
| 314 | } |
| 315 | |
| 316 | AbstractPropertySet<KP, KE> ret = getSubSetStore().get(prefix[idx]); |
| 317 | if (ret==null) { |
| 318 | if (!create) { |
| 319 | return null; |
| 320 | } |
| 321 | ret = newInstance(prefix[idx]); |
| 322 | getSubSetStore().put(prefix[idx], ret); |
| 323 | } |
| 324 | |
| 325 | if (prefix.length==idx+1) { |
| 326 | return ret; |
| 327 | } |
| 328 | |
| 329 | return ret.subset(prefix, idx+1, create); |
| 330 | } |
| 331 | |
| 332 | @Override |
| 333 | public void remove(KP key) { |
| 334 | writeLock().lock(); |
| 335 | try { |
| 336 | remove(tokenize(key), 0); |
| 337 | } finally { |
| 338 | writeLock().unlock(); |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | protected void remove(KE[] path, int idx) { |
| 343 | if (path.length==idx+1) { |
| 344 | getValueStore().remove(path[idx]); |
| 345 | } else { |
| 346 | PropertySet<KP> mount = getMounts().get(path[idx]); |
| 347 | if (mount!=null) { |
| 348 | mount.remove(buildPath(idx+1, path)); |
| 349 | } else { |
| 350 | AbstractPropertySet<KP, KE> ss = getSubSetStore().get(path[idx]); |
| 351 | if (ss!=null) { |
| 352 | ss.remove(path, idx+1); |
| 353 | } |
| 354 | } |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | @Override |
| 359 | public void clear() { |
| 360 | writeLock().lock(); |
| 361 | try { |
| 362 | getValueStore().clear(); |
| 363 | for (PropertySet<KP> m: getMounts().values()) { |
| 364 | m.clear(); |
| 365 | } |
| 366 | for (Map.Entry<KE, AbstractPropertySet<KP, KE>> e: getSubSetStore().entrySet()) { |
| 367 | if (!getMounts().containsKey(e.getKey())) { |
| 368 | e.getValue().clear(); |
| 369 | } |
| 370 | } |
| 371 | for (int i=0; i<shadows.length; ++i) { |
| 372 | shadows[i]=null; |
| 373 | } |
| 374 | } finally { |
| 375 | writeLock().unlock(); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | @Override |
| 380 | public void mount(KP prefix, PropertySet<KP> source) { |
| 381 | writeLock().lock(); |
| 382 | try { |
| 383 | mount(tokenize(prefix), 0, source); |
| 384 | } finally { |
| 385 | writeLock().unlock(); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | protected void mount(KE[] path, int idx, PropertySet<KP> source) { |
| 390 | if (path.length==idx+1) { |
| 391 | getMounts().put(path[idx], source); |
| 392 | } else { |
| 393 | AbstractPropertySet<KP, KE> ss = getSubSetStore().get(path[idx]); |
| 394 | if (ss==null) { |
| 395 | ss = newInstance(path[idx]); |
| 396 | getSubSetStore().put(path[idx], ss); |
| 397 | } |
| 398 | |
| 399 | ss.mount(path, idx+1, source); |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | @Override |
| 404 | public void unmount(KP prefix) { |
| 405 | writeLock().lock(); |
| 406 | try { |
| 407 | unmount(tokenize(prefix), 0); |
| 408 | } finally { |
| 409 | writeLock().unlock(); |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | protected void unmount(KE[] path, int idx) { |
| 414 | if (path.length==idx+1) { |
| 415 | getMounts().remove(path[idx]); |
| 416 | } else { |
| 417 | AbstractPropertySet<KP, KE> ss = getSubSetStore().get(path[idx]); |
| 418 | if (ss!=null) { |
| 419 | ss.unmount(path, idx+1); |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | @Override |
| 425 | public void setAll(PropertySet<KP> source) { |
| 426 | writeLock().lock(); |
| 427 | try { |
| 428 | for (KP path: source.keySet()) { |
| 429 | set(path, source.get(path)); |
| 430 | } |
| 431 | } finally { |
| 432 | writeLock().unlock(); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | @Override |
| 437 | public Object get(KP key) { |
| 438 | Object ret; |
| 439 | Object[] va = {null}; |
| 440 | readLock().lock(); |
| 441 | try { |
| 442 | ret = get(tokenize(key), 0, va); |
| 443 | } finally { |
| 444 | readLock().unlock(); |
| 445 | } |
| 446 | |
| 447 | // Chained version |
| 448 | if (va[0]!=null) { |
| 449 | set(key, va[0]); |
| 450 | } |
| 451 | |
| 452 | return ret; |
| 453 | } |
| 454 | |
| 455 | private static class CookEntry { |
| 456 | |
| 457 | CookEntry(Future<?> future, Callable<?> callable) { |
| 458 | this.future = future; |
| 459 | this.callable = callable; |
| 460 | } |
| 461 | |
| 462 | Future<?> future; |
| 463 | Callable<?> callable; |
| 464 | Object value; |
| 465 | |
| 466 | synchronized Object get() throws Exception { |
| 467 | if (future!=null) { |
| 468 | value = future.get(); |
| 469 | future = null; |
| 470 | } else if (callable!=null) { |
| 471 | value = callable.call(); |
| 472 | callable = null; |
| 473 | } |
| 474 | return value; |
| 475 | } |
| 476 | |
| 477 | void cancel() { |
| 478 | if (future!=null && callable!=null && !future.isDone()) { |
| 479 | future.cancel(false); |
| 480 | future = null; |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | } |
| 485 | |
| 486 | protected Object get(KE[] path, int idx, Object[] va) { |
| 487 | if (path.length==idx+1) { |
| 488 | if (getValueStore().containsKey(path[idx])) { |
| 489 | Object ret = getValueStore().get(path[idx]); |
| 490 | |
| 491 | if (ret instanceof Invocable) { |
| 492 | Invocable<PropertySet<KP>,?, KP> i = (Invocable<PropertySet<KP>,?, KP>) ret; |
| 493 | if (i.getParameterTypes()==null || i.getParameterTypes().length==0) { |
| 494 | InvocationImpl<KP> invocation = new InvocationImpl<KP>(); |
| 495 | invocation.setPropertySet(this); |
| 496 | return i.invoke(this, invocation, executorService); |
| 497 | } |
| 498 | return i; |
| 499 | } |
| 500 | |
| 501 | if (ret instanceof CookEntry) { |
| 502 | try { |
| 503 | ret = ((CookEntry) ret).get(); |
| 504 | va[0] = ret; // To replace cook entry with value |
| 505 | return ret; |
| 506 | } catch (Exception e) { |
| 507 | throw new PropertySetException(e); |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | return ret; |
| 512 | } |
| 513 | } else { |
| 514 | PropertySet<KP> mount = getMounts().get(path[idx]); |
| 515 | if (mount!=null) { |
| 516 | return mount.get(buildPath(idx+1, path)); |
| 517 | } |
| 518 | |
| 519 | AbstractPropertySet<KP, KE> ss = getSubSetStore().get(path[idx]); |
| 520 | if (ss!=null) { |
| 521 | Object ret = ss.get(path, idx+1, va); |
| 522 | if (ret!=null) { |
| 523 | return ret; |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | va[0] = shadowGet(buildPath(idx, path)); |
| 529 | return va[0]; |
| 530 | } |
| 531 | |
| 532 | @Override |
| 533 | public Object get(KP key, Object defaultValue) { |
| 534 | Object ret = get(key); |
| 535 | return ret == null ? defaultValue : ret; |
| 536 | } |
| 537 | |
| 538 | @Override |
| 539 | public <T> T get(KP key, Class<T> type) { |
| 540 | return get(key, type, null); |
| 541 | } |
| 542 | |
| 543 | @Override |
| 544 | public <T> T get(KP key, Class<T> type, T defaultValue) { |
| 545 | Object ret = get(key); |
| 546 | if (ret==null) { |
| 547 | if (type!=null && type.isInterface()) { |
| 548 | PropertySet<KP> toWrap = subset(tokenize(key), 0, false); |
| 549 | if (toWrap!=null) { |
| 550 | return toWrap.getAdapter(type, null); |
| 551 | } |
| 552 | } |
| 553 | return defaultValue; |
| 554 | } |
| 555 | if (type.isInstance(ret)) { |
| 556 | return (T) ret; |
| 557 | } |
| 558 | T converted = converter.convert(ret, type, context); |
| 559 | if (converted==null) { |
| 560 | throw new PropertySetException("Cannot convert "+ ret +" to "+type); |
| 561 | } |
| 562 | return converted; |
| 563 | } |
| 564 | |
| 565 | @Override |
| 566 | public void set(KP key, Object value) { |
| 567 | writeLock().lock(); |
| 568 | try { |
| 569 | set(tokenize(key), 0, value); |
| 570 | } finally { |
| 571 | writeLock().unlock(); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | protected void set(KE[] path, int idx, Object value) { |
| 576 | if (path.length==idx+1) { |
| 577 | getValueStore().put(path[idx], value); |
| 578 | } else { |
| 579 | PropertySet<KP> mount = getMounts().get(path[idx]); |
| 580 | if (mount!=null) { |
| 581 | mount.set(buildPath(idx+1, path), value); |
| 582 | } else { |
| 583 | AbstractPropertySet<KP, KE> ret = getSubSetStore().get(path[idx]); |
| 584 | if (ret==null) { |
| 585 | ret = newInstance(path[idx]); |
| 586 | getSubSetStore().put(path[idx], ret); |
| 587 | } |
| 588 | |
| 589 | ret.set(path, idx+1, value); |
| 590 | } |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | @Override |
| 595 | public void setInvocable(KP key, Invocable<PropertySet<KP>, ?, KP> invocable) { |
| 596 | set(key, invocable); |
| 597 | } |
| 598 | |
| 599 | @Override |
| 600 | public void cook(KP key, Callable<?> callable) { |
| 601 | cook(key, callable, 0, null); |
| 602 | } |
| 603 | |
| 604 | protected void cook(KE[] path, int idx, Callable<?> callable, long delay, TimeUnit timeUnit) { |
| 605 | if (path.length==idx+1) { |
| 606 | Future<?> future = null; |
| 607 | if (delay>0 && timeUnit!=null && executorService instanceof ScheduledExecutorService) { |
| 608 | future = ((ScheduledExecutorService) executorService).schedule(callable, delay, timeUnit); |
| 609 | } else if (executorService!=null) { |
| 610 | future = executorService.submit(callable); |
| 611 | } |
| 612 | getValueStore().put(path[idx], new CookEntry(future, callable)); |
| 613 | } else { |
| 614 | PropertySet<KP> mount = getMounts().get(path[idx]); |
| 615 | if (mount!=null) { |
| 616 | mount.cook(buildPath(idx+1, path), callable, delay, timeUnit); |
| 617 | } |
| 618 | |
| 619 | AbstractPropertySet<KP, KE> ret = getSubSetStore().get(path[idx]); |
| 620 | if (ret==null) { |
| 621 | ret = newInstance(path[idx]); |
| 622 | getSubSetStore().put(path[idx], ret); |
| 623 | } |
| 624 | |
| 625 | ret.cook(path, idx+1, callable, delay, timeUnit); |
| 626 | } |
| 627 | } |
| 628 | |
| 629 | @Override |
| 630 | public void cook(KP key, Callable<?> callable, long delay, TimeUnit timeUnit) { |
| 631 | writeLock().lock(); |
| 632 | try { |
| 633 | cook(tokenize(key), 0, callable, delay, timeUnit); |
| 634 | } finally { |
| 635 | writeLock().unlock(); |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | @Override |
| 640 | public void cooking(KP key, Future<?> future) { |
| 641 | set(key, new CookEntry(future, null)); |
| 642 | } |
| 643 | |
| 644 | @Override |
| 645 | public void lazy(KP key, Callable<?> callable) { |
| 646 | set(key, new CookEntry(null, callable)); |
| 647 | } |
| 648 | |
| 649 | @Override |
| 650 | public void cancel(KP key) { |
| 651 | readLock().lock(); |
| 652 | try { |
| 653 | cancel(tokenize(key),0); |
| 654 | } finally { |
| 655 | readLock().unlock(); |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | protected void cancel(KE[] path, int idx) { |
| 660 | if (path.length==idx+1) { |
| 661 | Object v = getValueStore().get(path[idx]); |
| 662 | if (v instanceof CookEntry) { |
| 663 | ((CookEntry) v).cancel(); |
| 664 | } |
| 665 | } else { |
| 666 | PropertySet<KP> mount = getMounts().get(path[idx]); |
| 667 | if (mount!=null) { |
| 668 | mount.cancel(buildPath(idx+1, path)); |
| 669 | } |
| 670 | |
| 671 | AbstractPropertySet<KP, KE> ret = getSubSetStore().get(path[idx]); |
| 672 | if (ret!=null) { |
| 673 | ret.cancel(path, idx+1); |
| 674 | } |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | @Override |
| 679 | public void cancelAll() { |
| 680 | readLock().lock(); |
| 681 | try { |
| 682 | for (PropertySet<KP> mount: getMounts().values()) { |
| 683 | mount.cancelAll(); |
| 684 | } |
| 685 | for (PropertySet<KP> ss: getSubSetStore().values()) { |
| 686 | ss.cancelAll(); |
| 687 | } |
| 688 | for (Object v: getValueStore().values()) { |
| 689 | if (v instanceof CookEntry) { |
| 690 | ((CookEntry) v).cancel(); |
| 691 | } |
| 692 | } |
| 693 | } finally { |
| 694 | readLock().unlock(); |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | @Override |
| 699 | public Object invoke(KP key, Object... args) { |
| 700 | return invoke(this, key, args); |
| 701 | } |
| 702 | |
| 703 | private Object invoke(PropertySet<KP> contextPropertySet, KP key, Object... args) { |
| 704 | writeLock().lock(); // To avoid deadlocks if invocable has side effects. |
| 705 | try { |
| 706 | Object i = contextPropertySet.get(key); |
| 707 | if (i instanceof Invocable) { |
| 708 | Invocable invocable = (Invocable) i; |
| 709 | Class[] parameterTypes = invocable.getParameterTypes(); |
| 710 | if (args!=null && parameterTypes!=null) { |
| 711 | if (parameterTypes.length!=args.length) { |
| 712 | throw new PropertySetException("Cannot invoke "+key+" - invalid number of arguments"); |
| 713 | } |
| 714 | args = Arrays.copyOf(args, args.length); |
| 715 | for (int j=0; j<args.length; ++j) { |
| 716 | if (args[j]!=null && !parameterTypes[j].isInstance(args[j])) { |
| 717 | Object newVal = converter.convert(args[j], parameterTypes[j], context); |
| 718 | if (args[j]==null) { |
| 719 | throw new PropertySetException("Cannot covert "+args[j]+" to "+parameterTypes[j]); |
| 720 | } |
| 721 | args[j] = newVal; |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | InvocationImpl invocation = new InvocationImpl(args, contextPropertySet, null); |
| 726 | return invocable.invoke(contextPropertySet, invocation, executorService); |
| 727 | } |
| 728 | |
| 729 | throw new PropertySetException("Not invocable: "+i); |
| 730 | } finally { |
| 731 | writeLock().unlock(); |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | @Override |
| 736 | public Object shadowInvoke(KP key, Object... args) { |
| 737 | return invoke(shadowPropertySet, key, args); |
| 738 | } |
| 739 | |
| 740 | @Override |
| 741 | public Object shadowGet(KP key) { |
| 742 | return shadowPropertySet.get(key); |
| 743 | } |
| 744 | |
| 745 | @Override |
| 746 | public Object shadowGet(KP key, Object defaultValue) { |
| 747 | return shadowPropertySet.get(key, defaultValue); |
| 748 | } |
| 749 | |
| 750 | @Override |
| 751 | public <T> T shadowGet(KP key, Class<T> type) { |
| 752 | return shadowPropertySet.get(key, type); |
| 753 | } |
| 754 | |
| 755 | @Override |
| 756 | public <T> T shadowGet(KP key, Class<T> type, T defaultValue) { |
| 757 | return shadowPropertySet.get(key, type, defaultValue); |
| 758 | } |
| 759 | |
| 760 | |
| 761 | } |