Examples with GridNearReadRepairFuture org.apache.ignite.internal.processors.cache.distributed.near.consistency.GridNearReadRepairFuture used on opensource projects

Example 1 with GridNearReadRepairFuture

use of org.apache.ignite.internal.processors.cache.distributed.near.consistency.GridNearReadRepairFuture in project ignite by apache.

the class GridNearTxLocal method getAllAsync.

/**
 * @param cacheCtx Cache context.
 * @param keys Keys to get.
 * @param deserializeBinary Deserialize binary flag.
 * @param skipVals Skip values flag.
 * @param keepCacheObjects Keep cache objects
 * @param skipStore Skip store flag.
 * @param readRepairStrategy Read Repair strategy.
 * @return Future for this get.
 */
@SuppressWarnings("unchecked")
public <K, V> IgniteInternalFuture<Map<K, V>> getAllAsync(final GridCacheContext cacheCtx, @Nullable final AffinityTopologyVersion entryTopVer, final Collection<KeyCacheObject> keys, final boolean deserializeBinary, final boolean skipVals, final boolean keepCacheObjects, final boolean skipStore, final boolean recovery, final ReadRepairStrategy readRepairStrategy, final boolean needVer) {
    if (F.isEmpty(keys))
        return new GridFinishedFuture<>(Collections.<K, V>emptyMap());
    if (cacheCtx.mvccEnabled() && !isOperationAllowed(true))
        return txTypeMismatchFinishFuture();
    init();
    int keysCnt = keys.size();
    boolean single = keysCnt == 1;
    try {
        checkValid();
        GridFutureAdapter<?> enlistFut = new GridFutureAdapter<>();
        if (!updateLockFuture(null, enlistFut))
            return new GridFinishedFuture<>(timedOut() ? timeoutException() : rollbackException());
        final Map<K, V> retMap = new GridLeanMap<>(keysCnt);
        final Map<KeyCacheObject, GridCacheVersion> missed = new GridLeanMap<>(pessimistic() ? keysCnt : 0);
        CacheOperationContext opCtx = cacheCtx.operationContextPerCall();
        ExpiryPolicy expiryPlc = opCtx != null ? opCtx.expiry() : null;
        final Collection<KeyCacheObject> lockKeys;
        try {
            lockKeys = enlistRead(cacheCtx, entryTopVer, keys, expiryPlc, retMap, missed, keysCnt, deserializeBinary, skipVals, keepCacheObjects, skipStore, recovery, readRepairStrategy, needVer);
        } catch (IgniteCheckedException e) {
            return new GridFinishedFuture<>(e);
        } finally {
            finishFuture(enlistFut, null, true);
        }
        if (isRollbackOnly())
            return new GridFinishedFuture<>(timedOut() ? timeoutException() : rollbackException());
        if (single && missed.isEmpty())
            return new GridFinishedFuture<>(retMap);
        // Handle locks.
        if (pessimistic() && !readCommitted() && !skipVals) {
            if (expiryPlc == null)
                expiryPlc = cacheCtx.expiry();
            long accessTtl = expiryPlc != null ? CU.toTtl(expiryPlc.getExpiryForAccess()) : CU.TTL_NOT_CHANGED;
            long createTtl = expiryPlc != null ? CU.toTtl(expiryPlc.getExpiryForCreation()) : CU.TTL_NOT_CHANGED;
            long timeout = remainingTime();
            if (timeout == -1)
                return new GridFinishedFuture<>(timeoutException());
            IgniteInternalFuture<Boolean> fut = cacheCtx.cache().txLockAsync(lockKeys, timeout, this, true, true, isolation, isInvalidate(), createTtl, accessTtl);
            final ExpiryPolicy expiryPlc0 = expiryPlc;
            PLC2<Map<K, V>> plc2 = new PLC2<Map<K, V>>() {

                @Override
                public IgniteInternalFuture<Map<K, V>> postLock() throws IgniteCheckedException {
                    if (log.isDebugEnabled())
                        log.debug("Acquired transaction lock for read on keys: " + lockKeys);
                    // Load keys only after the locks have been acquired.
                    for (KeyCacheObject cacheKey : lockKeys) {
                        K keyVal = (K) (keepCacheObjects ? cacheKey : cacheCtx.cacheObjectContext().unwrapBinaryIfNeeded(cacheKey, !deserializeBinary, true, null));
                        if (retMap.containsKey(keyVal))
                            // We already have a return value.
                            continue;
                        IgniteTxKey txKey = cacheCtx.txKey(cacheKey);
                        IgniteTxEntry txEntry = entry(txKey);
                        assert txEntry != null;
                        // Check if there is cached value.
                        while (true) {
                            GridCacheEntryEx cached = txEntry.cached();
                            CacheObject val = null;
                            GridCacheVersion readVer = null;
                            EntryGetResult getRes = null;
                            try {
                                Object transformClo = (!F.isEmpty(txEntry.entryProcessors()) && cctx.gridEvents().isRecordable(EVT_CACHE_OBJECT_READ)) ? F.first(txEntry.entryProcessors()) : null;
                                if (needVer) {
                                    getRes = cached.innerGetVersioned(null, GridNearTxLocal.this, /*update-metrics*/
                                    true, /*event*/
                                    !skipVals, transformClo, resolveTaskName(), null, txEntry.keepBinary(), null);
                                    if (getRes != null) {
                                        val = getRes.value();
                                        readVer = getRes.version();
                                    }
                                } else {
                                    val = cached.innerGet(null, GridNearTxLocal.this, /*read through*/
                                    false, /*metrics*/
                                    true, /*events*/
                                    !skipVals, transformClo, resolveTaskName(), null, txEntry.keepBinary());
                                }
                                // If value is in cache and passed the filter.
                                if (val != null) {
                                    missed.remove(cacheKey);
                                    txEntry.setAndMarkValid(val);
                                    if (!F.isEmpty(txEntry.entryProcessors()))
                                        val = txEntry.applyEntryProcessors(val);
                                    cacheCtx.addResult(retMap, cacheKey, val, skipVals, keepCacheObjects, deserializeBinary, false, getRes, readVer, 0, 0, needVer, U.deploymentClassLoader(cctx.kernalContext(), deploymentLdrId));
                                    if (readVer != null)
                                        txEntry.entryReadVersion(readVer);
                                }
                                // While.
                                break;
                            } catch (GridCacheEntryRemovedException ignore) {
                                if (log.isDebugEnabled())
                                    log.debug("Got removed exception in get postLock (will retry): " + cached);
                                txEntry.cached(entryEx(cacheCtx, txKey, topologyVersion()));
                            }
                        }
                    }
                    if (!missed.isEmpty() && cacheCtx.isLocal()) {
                        AffinityTopologyVersion topVer = topologyVersionSnapshot();
                        if (topVer == null)
                            topVer = entryTopVer;
                        return checkMissed(cacheCtx, topVer != null ? topVer : topologyVersion(), retMap, missed, deserializeBinary, skipVals, keepCacheObjects, skipStore, recovery, readRepairStrategy, needVer, expiryPlc0);
                    }
                    if (readRepairStrategy != null) {
                        // Checking and repairing each locked entry (if necessary).
                        return new GridNearReadRepairFuture(topVer != null ? topVer : topologyVersion(), cacheCtx, keys, readRepairStrategy, !skipStore, taskName, deserializeBinary, recovery, cacheCtx.cache().expiryPolicy(expiryPlc0), GridNearTxLocal.this).chain((fut) -> {
                            try {
                                // For every fixed entry.
                                for (Map.Entry<KeyCacheObject, EntryGetResult> entry : fut.get().entrySet()) {
                                    EntryGetResult getRes = entry.getValue();
                                    KeyCacheObject key = entry.getKey();
                                    enlistWrite(cacheCtx, entryTopVer, key, getRes != null ? getRes.value() : null, expiryPlc0, null, null, false, false, null, null, skipStore, false, !deserializeBinary, recovery, null);
                                    // Rewriting fixed, initially filled by explicit lock operation.
                                    if (getRes != null)
                                        cacheCtx.addResult(retMap, key, getRes.value(), skipVals, keepCacheObjects, deserializeBinary, false, getRes, getRes.version(), 0, 0, needVer, U.deploymentClassLoader(cctx.kernalContext(), deploymentLdrId));
                                    else
                                        retMap.remove(keepCacheObjects ? key : cacheCtx.cacheObjectContext().unwrapBinaryIfNeeded(key, !deserializeBinary, false, U.deploymentClassLoader(cctx.kernalContext(), deploymentLdrId)));
                                }
                                return Collections.emptyMap();
                            } catch (Exception e) {
                                throw new GridClosureException(e);
                            }
                        });
                    }
                    return new GridFinishedFuture<>(Collections.emptyMap());
                }
            };
            FinishClosure<Map<K, V>> finClos = new FinishClosure<Map<K, V>>() {

                @Override
                Map<K, V> finish(Map<K, V> loaded) {
                    retMap.putAll(loaded);
                    return retMap;
                }
            };
            if (fut.isDone()) {
                try {
                    IgniteInternalFuture<Map<K, V>> fut1 = plc2.apply(fut.get(), null);
                    return nonInterruptable(fut1.isDone() ? new GridFinishedFuture<>(finClos.apply(fut1.get(), null)) : new GridEmbeddedFuture<>(finClos, fut1));
                } catch (GridClosureException e) {
                    return new GridFinishedFuture<>(e.unwrap());
                } catch (IgniteCheckedException e) {
                    try {
                        return nonInterruptable(plc2.apply(false, e));
                    } catch (Exception e1) {
                        return new GridFinishedFuture<>(e1);
                    }
                }
            } else {
                return nonInterruptable(new GridEmbeddedFuture<>(fut, plc2, finClos));
            }
        } else {
            assert optimistic() || readCommitted() || skipVals;
            if (!missed.isEmpty()) {
                if (!readCommitted())
                    for (Iterator<KeyCacheObject> it = missed.keySet().iterator(); it.hasNext(); ) {
                        KeyCacheObject cacheKey = it.next();
                        K keyVal = (K) (keepCacheObjects ? cacheKey : cacheCtx.cacheObjectContext().unwrapBinaryIfNeeded(cacheKey, !deserializeBinary, false, null));
                        if (retMap.containsKey(keyVal))
                            it.remove();
                    }
                if (missed.isEmpty())
                    return new GridFinishedFuture<>(retMap);
                AffinityTopologyVersion topVer = topologyVersionSnapshot();
                if (topVer == null)
                    topVer = entryTopVer;
                return checkMissed(cacheCtx, topVer != null ? topVer : topologyVersion(), retMap, missed, deserializeBinary, skipVals, keepCacheObjects, skipStore, recovery, readRepairStrategy, needVer, expiryPlc);
            }
            return new GridFinishedFuture<>(retMap);
        }
    } catch (IgniteCheckedException e) {
        setRollbackOnly();
        return new GridFinishedFuture<>(e);
    }
}