Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.net; |
| 18 | |
| 19 | import static android.net.NetworkStats.IFACE_ALL; |
| 20 | import static android.net.NetworkStats.SET_ALL; |
| 21 | import static android.net.NetworkStats.SET_DEFAULT; |
| 22 | import static android.net.NetworkStats.TAG_NONE; |
| 23 | import static android.net.NetworkStats.UID_ALL; |
| 24 | import static android.net.TrafficStats.UID_REMOVED; |
| 25 | |
| 26 | import android.net.NetworkIdentity; |
| 27 | import android.net.NetworkStats; |
| 28 | import android.net.NetworkStatsHistory; |
| 29 | import android.net.NetworkTemplate; |
| 30 | import android.net.TrafficStats; |
| 31 | import android.text.format.DateUtils; |
Dianne Hackborn | 39606a0 | 2012-07-31 17:54:35 -0700 | [diff] [blame^] | 32 | import android.util.AtomicFile; |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 33 | |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 34 | import com.android.internal.util.FileRotator; |
| 35 | import com.android.internal.util.IndentingPrintWriter; |
| 36 | import com.android.internal.util.Objects; |
| 37 | import com.google.android.collect.Lists; |
| 38 | import com.google.android.collect.Maps; |
| 39 | |
| 40 | import java.io.BufferedInputStream; |
| 41 | import java.io.DataInputStream; |
| 42 | import java.io.DataOutputStream; |
| 43 | import java.io.File; |
| 44 | import java.io.FileNotFoundException; |
| 45 | import java.io.IOException; |
| 46 | import java.io.InputStream; |
| 47 | import java.net.ProtocolException; |
| 48 | import java.util.ArrayList; |
| 49 | import java.util.Collections; |
| 50 | import java.util.HashMap; |
| 51 | import java.util.Map; |
| 52 | |
| 53 | import libcore.io.IoUtils; |
| 54 | |
| 55 | /** |
| 56 | * Collection of {@link NetworkStatsHistory}, stored based on combined key of |
| 57 | * {@link NetworkIdentitySet}, UID, set, and tag. Knows how to persist itself. |
| 58 | */ |
| 59 | public class NetworkStatsCollection implements FileRotator.Reader { |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 60 | /** File header magic number: "ANET" */ |
| 61 | private static final int FILE_MAGIC = 0x414E4554; |
| 62 | |
| 63 | private static final int VERSION_NETWORK_INIT = 1; |
| 64 | |
| 65 | private static final int VERSION_UID_INIT = 1; |
| 66 | private static final int VERSION_UID_WITH_IDENT = 2; |
| 67 | private static final int VERSION_UID_WITH_TAG = 3; |
| 68 | private static final int VERSION_UID_WITH_SET = 4; |
| 69 | |
| 70 | private static final int VERSION_UNIFIED_INIT = 16; |
| 71 | |
| 72 | private HashMap<Key, NetworkStatsHistory> mStats = Maps.newHashMap(); |
| 73 | |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 74 | private final long mBucketDuration; |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 75 | |
| 76 | private long mStartMillis; |
| 77 | private long mEndMillis; |
| 78 | private long mTotalBytes; |
| 79 | private boolean mDirty; |
| 80 | |
| 81 | public NetworkStatsCollection(long bucketDuration) { |
| 82 | mBucketDuration = bucketDuration; |
| 83 | reset(); |
| 84 | } |
| 85 | |
| 86 | public void reset() { |
| 87 | mStats.clear(); |
| 88 | mStartMillis = Long.MAX_VALUE; |
| 89 | mEndMillis = Long.MIN_VALUE; |
| 90 | mTotalBytes = 0; |
| 91 | mDirty = false; |
| 92 | } |
| 93 | |
| 94 | public long getStartMillis() { |
| 95 | return mStartMillis; |
| 96 | } |
| 97 | |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 98 | /** |
| 99 | * Return first atomic bucket in this collection, which is more conservative |
| 100 | * than {@link #mStartMillis}. |
| 101 | */ |
| 102 | public long getFirstAtomicBucketMillis() { |
| 103 | if (mStartMillis == Long.MAX_VALUE) { |
| 104 | return Long.MAX_VALUE; |
| 105 | } else { |
| 106 | return mStartMillis + mBucketDuration; |
| 107 | } |
| 108 | } |
| 109 | |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 110 | public long getEndMillis() { |
| 111 | return mEndMillis; |
| 112 | } |
| 113 | |
| 114 | public long getTotalBytes() { |
| 115 | return mTotalBytes; |
| 116 | } |
| 117 | |
| 118 | public boolean isDirty() { |
| 119 | return mDirty; |
| 120 | } |
| 121 | |
| 122 | public void clearDirty() { |
| 123 | mDirty = false; |
| 124 | } |
| 125 | |
| 126 | public boolean isEmpty() { |
| 127 | return mStartMillis == Long.MAX_VALUE && mEndMillis == Long.MIN_VALUE; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Combine all {@link NetworkStatsHistory} in this collection which match |
| 132 | * the requested parameters. |
| 133 | */ |
| 134 | public NetworkStatsHistory getHistory( |
| 135 | NetworkTemplate template, int uid, int set, int tag, int fields) { |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 136 | return getHistory(template, uid, set, tag, fields, Long.MIN_VALUE, Long.MAX_VALUE); |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Combine all {@link NetworkStatsHistory} in this collection which match |
| 141 | * the requested parameters. |
| 142 | */ |
| 143 | public NetworkStatsHistory getHistory( |
| 144 | NetworkTemplate template, int uid, int set, int tag, int fields, long start, long end) { |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 145 | final NetworkStatsHistory combined = new NetworkStatsHistory( |
| 146 | mBucketDuration, estimateBuckets(), fields); |
| 147 | for (Map.Entry<Key, NetworkStatsHistory> entry : mStats.entrySet()) { |
| 148 | final Key key = entry.getKey(); |
| 149 | final boolean setMatches = set == SET_ALL || key.set == set; |
| 150 | if (key.uid == uid && setMatches && key.tag == tag |
| 151 | && templateMatches(template, key.ident)) { |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 152 | combined.recordHistory(entry.getValue(), start, end); |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 153 | } |
| 154 | } |
| 155 | return combined; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Summarize all {@link NetworkStatsHistory} in this collection which match |
| 160 | * the requested parameters. |
| 161 | */ |
| 162 | public NetworkStats getSummary(NetworkTemplate template, long start, long end) { |
| 163 | final long now = System.currentTimeMillis(); |
| 164 | |
| 165 | final NetworkStats stats = new NetworkStats(end - start, 24); |
| 166 | final NetworkStats.Entry entry = new NetworkStats.Entry(); |
| 167 | NetworkStatsHistory.Entry historyEntry = null; |
| 168 | |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 169 | // shortcut when we know stats will be empty |
| 170 | if (start == end) return stats; |
| 171 | |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 172 | for (Map.Entry<Key, NetworkStatsHistory> mapEntry : mStats.entrySet()) { |
| 173 | final Key key = mapEntry.getKey(); |
| 174 | if (templateMatches(template, key.ident)) { |
| 175 | final NetworkStatsHistory history = mapEntry.getValue(); |
| 176 | historyEntry = history.getValues(start, end, now, historyEntry); |
| 177 | |
| 178 | entry.iface = IFACE_ALL; |
| 179 | entry.uid = key.uid; |
| 180 | entry.set = key.set; |
| 181 | entry.tag = key.tag; |
| 182 | entry.rxBytes = historyEntry.rxBytes; |
| 183 | entry.rxPackets = historyEntry.rxPackets; |
| 184 | entry.txBytes = historyEntry.txBytes; |
| 185 | entry.txPackets = historyEntry.txPackets; |
| 186 | entry.operations = historyEntry.operations; |
| 187 | |
| 188 | if (!entry.isEmpty()) { |
| 189 | stats.combineValues(entry); |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | return stats; |
| 195 | } |
| 196 | |
| 197 | /** |
Jeff Sharkey | bfdd680 | 2012-04-09 10:49:19 -0700 | [diff] [blame] | 198 | * Record given {@link android.net.NetworkStats.Entry} into this collection. |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 199 | */ |
| 200 | public void recordData(NetworkIdentitySet ident, int uid, int set, int tag, long start, |
| 201 | long end, NetworkStats.Entry entry) { |
Jeff Sharkey | 70c7053 | 2012-05-16 14:51:19 -0700 | [diff] [blame] | 202 | final NetworkStatsHistory history = findOrCreateHistory(ident, uid, set, tag); |
| 203 | history.recordData(start, end, entry); |
| 204 | noteRecordedHistory(history.getStart(), history.getEnd(), entry.rxBytes + entry.txBytes); |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Record given {@link NetworkStatsHistory} into this collection. |
| 209 | */ |
| 210 | private void recordHistory(Key key, NetworkStatsHistory history) { |
| 211 | if (history.size() == 0) return; |
| 212 | noteRecordedHistory(history.getStart(), history.getEnd(), history.getTotalBytes()); |
| 213 | |
Jeff Sharkey | ac3fcb1 | 2012-05-02 18:11:52 -0700 | [diff] [blame] | 214 | NetworkStatsHistory target = mStats.get(key); |
| 215 | if (target == null) { |
| 216 | target = new NetworkStatsHistory(history.getBucketDuration()); |
| 217 | mStats.put(key, target); |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 218 | } |
Jeff Sharkey | ac3fcb1 | 2012-05-02 18:11:52 -0700 | [diff] [blame] | 219 | target.recordEntireHistory(history); |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Record all {@link NetworkStatsHistory} contained in the given collection |
| 224 | * into this collection. |
| 225 | */ |
| 226 | public void recordCollection(NetworkStatsCollection another) { |
| 227 | for (Map.Entry<Key, NetworkStatsHistory> entry : another.mStats.entrySet()) { |
| 228 | recordHistory(entry.getKey(), entry.getValue()); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | private NetworkStatsHistory findOrCreateHistory( |
| 233 | NetworkIdentitySet ident, int uid, int set, int tag) { |
| 234 | final Key key = new Key(ident, uid, set, tag); |
| 235 | final NetworkStatsHistory existing = mStats.get(key); |
| 236 | |
| 237 | // update when no existing, or when bucket duration changed |
| 238 | NetworkStatsHistory updated = null; |
| 239 | if (existing == null) { |
| 240 | updated = new NetworkStatsHistory(mBucketDuration, 10); |
| 241 | } else if (existing.getBucketDuration() != mBucketDuration) { |
| 242 | updated = new NetworkStatsHistory(existing, mBucketDuration); |
| 243 | } |
| 244 | |
| 245 | if (updated != null) { |
| 246 | mStats.put(key, updated); |
| 247 | return updated; |
| 248 | } else { |
| 249 | return existing; |
| 250 | } |
| 251 | } |
| 252 | |
Jeff Sharkey | bfdd680 | 2012-04-09 10:49:19 -0700 | [diff] [blame] | 253 | @Override |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 254 | public void read(InputStream in) throws IOException { |
| 255 | read(new DataInputStream(in)); |
| 256 | } |
| 257 | |
| 258 | public void read(DataInputStream in) throws IOException { |
| 259 | // verify file magic header intact |
| 260 | final int magic = in.readInt(); |
| 261 | if (magic != FILE_MAGIC) { |
| 262 | throw new ProtocolException("unexpected magic: " + magic); |
| 263 | } |
| 264 | |
| 265 | final int version = in.readInt(); |
| 266 | switch (version) { |
| 267 | case VERSION_UNIFIED_INIT: { |
| 268 | // uid := size *(NetworkIdentitySet size *(uid set tag NetworkStatsHistory)) |
| 269 | final int identSize = in.readInt(); |
| 270 | for (int i = 0; i < identSize; i++) { |
| 271 | final NetworkIdentitySet ident = new NetworkIdentitySet(in); |
| 272 | |
| 273 | final int size = in.readInt(); |
| 274 | for (int j = 0; j < size; j++) { |
| 275 | final int uid = in.readInt(); |
| 276 | final int set = in.readInt(); |
| 277 | final int tag = in.readInt(); |
| 278 | |
| 279 | final Key key = new Key(ident, uid, set, tag); |
| 280 | final NetworkStatsHistory history = new NetworkStatsHistory(in); |
| 281 | recordHistory(key, history); |
| 282 | } |
| 283 | } |
| 284 | break; |
| 285 | } |
| 286 | default: { |
| 287 | throw new ProtocolException("unexpected version: " + version); |
| 288 | } |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | public void write(DataOutputStream out) throws IOException { |
| 293 | // cluster key lists grouped by ident |
| 294 | final HashMap<NetworkIdentitySet, ArrayList<Key>> keysByIdent = Maps.newHashMap(); |
| 295 | for (Key key : mStats.keySet()) { |
| 296 | ArrayList<Key> keys = keysByIdent.get(key.ident); |
| 297 | if (keys == null) { |
| 298 | keys = Lists.newArrayList(); |
| 299 | keysByIdent.put(key.ident, keys); |
| 300 | } |
| 301 | keys.add(key); |
| 302 | } |
| 303 | |
| 304 | out.writeInt(FILE_MAGIC); |
| 305 | out.writeInt(VERSION_UNIFIED_INIT); |
| 306 | |
| 307 | out.writeInt(keysByIdent.size()); |
| 308 | for (NetworkIdentitySet ident : keysByIdent.keySet()) { |
| 309 | final ArrayList<Key> keys = keysByIdent.get(ident); |
| 310 | ident.writeToStream(out); |
| 311 | |
| 312 | out.writeInt(keys.size()); |
| 313 | for (Key key : keys) { |
| 314 | final NetworkStatsHistory history = mStats.get(key); |
| 315 | out.writeInt(key.uid); |
| 316 | out.writeInt(key.set); |
| 317 | out.writeInt(key.tag); |
| 318 | history.writeToStream(out); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | out.flush(); |
| 323 | } |
| 324 | |
| 325 | @Deprecated |
| 326 | public void readLegacyNetwork(File file) throws IOException { |
| 327 | final AtomicFile inputFile = new AtomicFile(file); |
| 328 | |
| 329 | DataInputStream in = null; |
| 330 | try { |
| 331 | in = new DataInputStream(new BufferedInputStream(inputFile.openRead())); |
| 332 | |
| 333 | // verify file magic header intact |
| 334 | final int magic = in.readInt(); |
| 335 | if (magic != FILE_MAGIC) { |
| 336 | throw new ProtocolException("unexpected magic: " + magic); |
| 337 | } |
| 338 | |
| 339 | final int version = in.readInt(); |
| 340 | switch (version) { |
| 341 | case VERSION_NETWORK_INIT: { |
| 342 | // network := size *(NetworkIdentitySet NetworkStatsHistory) |
| 343 | final int size = in.readInt(); |
| 344 | for (int i = 0; i < size; i++) { |
| 345 | final NetworkIdentitySet ident = new NetworkIdentitySet(in); |
| 346 | final NetworkStatsHistory history = new NetworkStatsHistory(in); |
| 347 | |
| 348 | final Key key = new Key(ident, UID_ALL, SET_ALL, TAG_NONE); |
| 349 | recordHistory(key, history); |
| 350 | } |
| 351 | break; |
| 352 | } |
| 353 | default: { |
| 354 | throw new ProtocolException("unexpected version: " + version); |
| 355 | } |
| 356 | } |
| 357 | } catch (FileNotFoundException e) { |
| 358 | // missing stats is okay, probably first boot |
| 359 | } finally { |
| 360 | IoUtils.closeQuietly(in); |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | @Deprecated |
| 365 | public void readLegacyUid(File file, boolean onlyTags) throws IOException { |
| 366 | final AtomicFile inputFile = new AtomicFile(file); |
| 367 | |
| 368 | DataInputStream in = null; |
| 369 | try { |
| 370 | in = new DataInputStream(new BufferedInputStream(inputFile.openRead())); |
| 371 | |
| 372 | // verify file magic header intact |
| 373 | final int magic = in.readInt(); |
| 374 | if (magic != FILE_MAGIC) { |
| 375 | throw new ProtocolException("unexpected magic: " + magic); |
| 376 | } |
| 377 | |
| 378 | final int version = in.readInt(); |
| 379 | switch (version) { |
| 380 | case VERSION_UID_INIT: { |
| 381 | // uid := size *(UID NetworkStatsHistory) |
| 382 | |
| 383 | // drop this data version, since we don't have a good |
| 384 | // mapping into NetworkIdentitySet. |
| 385 | break; |
| 386 | } |
| 387 | case VERSION_UID_WITH_IDENT: { |
| 388 | // uid := size *(NetworkIdentitySet size *(UID NetworkStatsHistory)) |
| 389 | |
| 390 | // drop this data version, since this version only existed |
| 391 | // for a short time. |
| 392 | break; |
| 393 | } |
| 394 | case VERSION_UID_WITH_TAG: |
| 395 | case VERSION_UID_WITH_SET: { |
| 396 | // uid := size *(NetworkIdentitySet size *(uid set tag NetworkStatsHistory)) |
| 397 | final int identSize = in.readInt(); |
| 398 | for (int i = 0; i < identSize; i++) { |
| 399 | final NetworkIdentitySet ident = new NetworkIdentitySet(in); |
| 400 | |
| 401 | final int size = in.readInt(); |
| 402 | for (int j = 0; j < size; j++) { |
| 403 | final int uid = in.readInt(); |
| 404 | final int set = (version >= VERSION_UID_WITH_SET) ? in.readInt() |
| 405 | : SET_DEFAULT; |
| 406 | final int tag = in.readInt(); |
| 407 | |
| 408 | final Key key = new Key(ident, uid, set, tag); |
| 409 | final NetworkStatsHistory history = new NetworkStatsHistory(in); |
| 410 | |
| 411 | if ((tag == TAG_NONE) != onlyTags) { |
| 412 | recordHistory(key, history); |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | break; |
| 417 | } |
| 418 | default: { |
| 419 | throw new ProtocolException("unexpected version: " + version); |
| 420 | } |
| 421 | } |
| 422 | } catch (FileNotFoundException e) { |
| 423 | // missing stats is okay, probably first boot |
| 424 | } finally { |
| 425 | IoUtils.closeQuietly(in); |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Remove any {@link NetworkStatsHistory} attributed to the requested UID, |
| 431 | * moving any {@link NetworkStats#TAG_NONE} series to |
| 432 | * {@link TrafficStats#UID_REMOVED}. |
| 433 | */ |
| 434 | public void removeUid(int uid) { |
| 435 | final ArrayList<Key> knownKeys = Lists.newArrayList(); |
| 436 | knownKeys.addAll(mStats.keySet()); |
| 437 | |
| 438 | // migrate all UID stats into special "removed" bucket |
| 439 | for (Key key : knownKeys) { |
| 440 | if (key.uid == uid) { |
| 441 | // only migrate combined TAG_NONE history |
| 442 | if (key.tag == TAG_NONE) { |
| 443 | final NetworkStatsHistory uidHistory = mStats.get(key); |
| 444 | final NetworkStatsHistory removedHistory = findOrCreateHistory( |
| 445 | key.ident, UID_REMOVED, SET_DEFAULT, TAG_NONE); |
| 446 | removedHistory.recordEntireHistory(uidHistory); |
| 447 | } |
| 448 | mStats.remove(key); |
| 449 | mDirty = true; |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | private void noteRecordedHistory(long startMillis, long endMillis, long totalBytes) { |
| 455 | if (startMillis < mStartMillis) mStartMillis = startMillis; |
| 456 | if (endMillis > mEndMillis) mEndMillis = endMillis; |
| 457 | mTotalBytes += totalBytes; |
| 458 | mDirty = true; |
| 459 | } |
| 460 | |
| 461 | private int estimateBuckets() { |
| 462 | return (int) (Math.min(mEndMillis - mStartMillis, DateUtils.WEEK_IN_MILLIS * 5) |
| 463 | / mBucketDuration); |
| 464 | } |
| 465 | |
| 466 | public void dump(IndentingPrintWriter pw) { |
| 467 | final ArrayList<Key> keys = Lists.newArrayList(); |
| 468 | keys.addAll(mStats.keySet()); |
| 469 | Collections.sort(keys); |
| 470 | |
| 471 | for (Key key : keys) { |
| 472 | pw.print("ident="); pw.print(key.ident.toString()); |
| 473 | pw.print(" uid="); pw.print(key.uid); |
| 474 | pw.print(" set="); pw.print(NetworkStats.setToString(key.set)); |
| 475 | pw.print(" tag="); pw.println(NetworkStats.tagToString(key.tag)); |
| 476 | |
| 477 | final NetworkStatsHistory history = mStats.get(key); |
| 478 | pw.increaseIndent(); |
| 479 | history.dump(pw, true); |
| 480 | pw.decreaseIndent(); |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | /** |
| 485 | * Test if given {@link NetworkTemplate} matches any {@link NetworkIdentity} |
| 486 | * in the given {@link NetworkIdentitySet}. |
| 487 | */ |
| 488 | private static boolean templateMatches(NetworkTemplate template, NetworkIdentitySet identSet) { |
| 489 | for (NetworkIdentity ident : identSet) { |
| 490 | if (template.matches(ident)) { |
| 491 | return true; |
| 492 | } |
| 493 | } |
| 494 | return false; |
| 495 | } |
| 496 | |
| 497 | private static class Key implements Comparable<Key> { |
| 498 | public final NetworkIdentitySet ident; |
| 499 | public final int uid; |
| 500 | public final int set; |
| 501 | public final int tag; |
| 502 | |
| 503 | private final int hashCode; |
| 504 | |
| 505 | public Key(NetworkIdentitySet ident, int uid, int set, int tag) { |
| 506 | this.ident = ident; |
| 507 | this.uid = uid; |
| 508 | this.set = set; |
| 509 | this.tag = tag; |
| 510 | hashCode = Objects.hashCode(ident, uid, set, tag); |
| 511 | } |
| 512 | |
| 513 | @Override |
| 514 | public int hashCode() { |
| 515 | return hashCode; |
| 516 | } |
| 517 | |
| 518 | @Override |
| 519 | public boolean equals(Object obj) { |
| 520 | if (obj instanceof Key) { |
| 521 | final Key key = (Key) obj; |
| 522 | return uid == key.uid && set == key.set && tag == key.tag |
| 523 | && Objects.equal(ident, key.ident); |
| 524 | } |
| 525 | return false; |
| 526 | } |
| 527 | |
Jeff Sharkey | bfdd680 | 2012-04-09 10:49:19 -0700 | [diff] [blame] | 528 | @Override |
Jeff Sharkey | 63abc37 | 2012-01-11 18:38:16 -0800 | [diff] [blame] | 529 | public int compareTo(Key another) { |
| 530 | return Integer.compare(uid, another.uid); |
| 531 | } |
| 532 | } |
| 533 | } |