Examples with CacheObject org.apache.ignite.internal.processors.cache.CacheObject used on opensource projects

Example 16 with CacheObject

use of org.apache.ignite.internal.processors.cache.CacheObject in project ignite by apache.

the class GridNearGetFuture method loadEntries.

/**
     * @param nodeId Node id.
     * @param keys Keys.
     * @param infos Entry infos.
     * @param savedEntries Saved entries.
     * @param topVer Topology version
     * @return Result map.
     */
private Map<K, V> loadEntries(UUID nodeId, Collection<KeyCacheObject> keys, Collection<GridCacheEntryInfo> infos, Map<KeyCacheObject, GridNearCacheEntry> savedEntries, AffinityTopologyVersion topVer) {
    boolean empty = F.isEmpty(keys);
    Map<K, V> map = empty ? Collections.<K, V>emptyMap() : new GridLeanMap<K, V>(keys.size());
    if (!empty) {
        boolean atomic = cctx.atomic();
        GridCacheVersion ver = atomic ? null : F.isEmpty(infos) ? null : cctx.versions().next();
        for (GridCacheEntryInfo info : infos) {
            try {
                info.unmarshalValue(cctx, cctx.deploy().globalLoader());
                // Entries available locally in DHT should not be loaded into near cache for reading.
                if (!cctx.affinity().keyLocalNode(info.key(), cctx.affinity().affinityTopologyVersion())) {
                    GridNearCacheEntry entry = savedEntries.get(info.key());
                    if (entry == null)
                        entry = cache().entryExx(info.key(), topVer);
                    // Load entry into cache.
                    entry.loadedValue(tx, nodeId, info.value(), atomic ? info.version() : ver, info.version(), info.ttl(), info.expireTime(), true, !deserializeBinary, topVer, subjId);
                }
                CacheObject val = info.value();
                KeyCacheObject key = info.key();
                assert skipVals == (info.value() == null);
                cctx.addResult(map, key, val, skipVals, keepCacheObjects, deserializeBinary, false, needVer ? info.version() : null, 0, 0);
            } catch (GridCacheEntryRemovedException ignore) {
                if (log.isDebugEnabled())
                    log.debug("Got removed entry while processing get response (will not retry).");
            } catch (Exception e) {
                // Fail.
                onDone(e);
                return Collections.emptyMap();
            }
        }
    }
    return map;
}

Example 17 with CacheObject

use of org.apache.ignite.internal.processors.cache.CacheObject in project ignite by apache.

the class GridNearCacheEntry method removeLock.

/**
     * Unlocks local lock.
     *
     * @return Removed candidate, or <tt>null</tt> if thread still holds the lock.
     */
@Nullable
@Override
public GridCacheMvccCandidate removeLock() {
    CacheLockCandidates prev = null;
    CacheLockCandidates owner = null;
    CacheObject val;
    UUID locId = cctx.nodeId();
    GridCacheMvccCandidate cand = null;
    synchronized (this) {
        GridCacheMvcc mvcc = mvccExtras();
        if (mvcc != null) {
            prev = mvcc.allOwners();
            boolean emptyBefore = mvcc.isEmpty();
            cand = mvcc.localCandidate(locId, Thread.currentThread().getId());
            assert cand == null || cand.nearLocal();
            if (cand != null && cand.owner()) {
                // If a reentry, then release reentry. Otherwise, remove lock.
                GridCacheMvccCandidate reentry = cand.unenter();
                if (reentry != null) {
                    assert reentry.reentry();
                    return reentry;
                }
                mvcc.remove(cand.version());
                owner = mvcc.allOwners();
            } else
                return null;
            boolean emptyAfter = mvcc.isEmpty();
            checkCallbacks(emptyBefore, emptyAfter);
            if (emptyAfter)
                mvccExtras(null);
        }
        val = this.val;
    }
    assert cand != null;
    assert owner != prev;
    if (log.isDebugEnabled())
        log.debug("Released local candidate from entry [owner=" + owner + ", prev=" + prev + ", entry=" + this + ']');
    cctx.mvcc().removeExplicitLock(cand);
    checkThreadChain(cand);
    // This call must be outside of synchronization.
    checkOwnerChanged(prev, owner, val);
    return cand;
}

Example 18 with CacheObject

use of org.apache.ignite.internal.processors.cache.CacheObject in project ignite by apache.

the class GridNearGetFuture method localDhtGet.

/**
     * @param key Key.
     * @param part Partition.
     * @param topVer Topology version.
     * @param nearRead {@code True} if already tried to read from near cache.
     * @return {@code True} if there is no need to further search value.
     */
private boolean localDhtGet(KeyCacheObject key, int part, AffinityTopologyVersion topVer, boolean nearRead) {
    GridDhtCacheAdapter<K, V> dht = cache().dht();
    assert dht.context().affinityNode() : this;
    while (true) {
        GridCacheEntryEx dhtEntry = null;
        try {
            dhtEntry = dht.entryEx(key);
            CacheObject v = null;
            // If near cache does not have value, then we peek DHT cache.
            if (dhtEntry != null) {
                boolean isNew = dhtEntry.isNewLocked() || !dhtEntry.valid(topVer);
                if (needVer) {
                    EntryGetResult res = dhtEntry.innerGetVersioned(null, null, /**update-metrics*/
                    false, /*event*/
                    !nearRead && !skipVals, subjId, null, taskName, expiryPlc, !deserializeBinary, null);
                    if (res != null) {
                        v = res.value();
                        ver = res.version();
                    }
                } else {
                    v = dhtEntry.innerGet(null, tx, /*read-through*/
                    false, /*update-metrics*/
                    false, /*events*/
                    !nearRead && !skipVals, subjId, null, taskName, expiryPlc, !deserializeBinary);
                }
                // Entry was not in memory or in swap, so we remove it from cache.
                if (v == null && isNew && dhtEntry.markObsoleteIfEmpty(ver))
                    dht.removeEntry(dhtEntry);
            }
            if (v != null) {
                if (cctx.cache().configuration().isStatisticsEnabled() && !skipVals)
                    cache().metrics0().onRead(true);
                addResult(key, v, ver);
                return true;
            } else {
                boolean topStable = cctx.isReplicated() || topVer.equals(cctx.topology().topologyVersion());
                // Entry not found, do not continue search if topology did not change and there is no store.
                return !cctx.readThroughConfigured() && (topStable || partitionOwned(part));
            }
        } catch (GridCacheEntryRemovedException ignored) {
        // Retry.
        } catch (GridDhtInvalidPartitionException ignored) {
            return false;
        } catch (IgniteCheckedException e) {
            onDone(e);
            return false;
        } finally {
            if (dhtEntry != null)
                // Near cache is enabled, so near entry will be enlisted in the transaction.
                // Always touch DHT entry in this case.
                dht.context().evicts().touch(dhtEntry, topVer);
        }
    }
}

Example 19 with CacheObject

use of org.apache.ignite.internal.processors.cache.CacheObject in project ignite by apache.

the class GridNearGetFuture method map.

/**
     * @param mappings Mappings.
     * @param key Key to map.
     * @param topVer Topology version
     * @param mapped Previously mapped.
     * @param saved Reserved near cache entries.
     * @return Map.
     */
@SuppressWarnings("unchecked")
private Map<KeyCacheObject, GridNearCacheEntry> map(KeyCacheObject key, Map<ClusterNode, LinkedHashMap<KeyCacheObject, Boolean>> mappings, AffinityTopologyVersion topVer, Map<ClusterNode, LinkedHashMap<KeyCacheObject, Boolean>> mapped, Map<KeyCacheObject, GridNearCacheEntry> saved) {
    int part = cctx.affinity().partition(key);
    List<ClusterNode> affNodes = cctx.affinity().nodesByPartition(part, topVer);
    if (affNodes.isEmpty()) {
        onDone(serverNotFoundError(topVer));
        return null;
    }
    final GridNearCacheAdapter near = cache();
    // Allow to get cached value from the local node.
    boolean allowLocRead = !forcePrimary || cctx.localNode().equals(affNodes.get(0));
    while (true) {
        GridNearCacheEntry entry = allowLocRead ? (GridNearCacheEntry) near.peekEx(key) : null;
        try {
            CacheObject v = null;
            GridCacheVersion ver = null;
            boolean isNear = entry != null;
            // First we peek into near cache.
            if (isNear) {
                if (needVer) {
                    EntryGetResult res = entry.innerGetVersioned(null, null, /**update-metrics*/
                    true, /*event*/
                    !skipVals, subjId, null, taskName, expiryPlc, !deserializeBinary, null);
                    if (res != null) {
                        v = res.value();
                        ver = res.version();
                    }
                } else {
                    v = entry.innerGet(null, tx, /*read-through*/
                    false, /*metrics*/
                    true, /*events*/
                    !skipVals, subjId, null, taskName, expiryPlc, !deserializeBinary);
                }
            }
            if (v == null) {
                boolean fastLocGet = allowLocRead && cctx.allowFastLocalRead(part, affNodes, topVer);
                if (fastLocGet && localDhtGet(key, part, topVer, isNear))
                    break;
                ClusterNode affNode = affinityNode(affNodes);
                if (affNode == null) {
                    onDone(serverNotFoundError(topVer));
                    return saved;
                }
                if (cctx.cache().configuration().isStatisticsEnabled() && !skipVals && !affNode.isLocal())
                    cache().metrics0().onRead(false);
                LinkedHashMap<KeyCacheObject, Boolean> keys = mapped.get(affNode);
                if (keys != null && keys.containsKey(key)) {
                    if (REMAP_CNT_UPD.incrementAndGet(this) > MAX_REMAP_CNT) {
                        onDone(new ClusterTopologyCheckedException("Failed to remap key to a new node after " + MAX_REMAP_CNT + " attempts (key got remapped to the same node) " + "[key=" + key + ", node=" + U.toShortString(affNode) + ", mappings=" + mapped + ']'));
                        return saved;
                    }
                }
                if (!affNodes.contains(cctx.localNode())) {
                    GridNearCacheEntry nearEntry = entry != null ? entry : near.entryExx(key, topVer);
                    nearEntry.reserveEviction();
                    entry = null;
                    if (saved == null)
                        saved = U.newHashMap(3);
                    saved.put(key, nearEntry);
                }
                // Don't add reader if transaction acquires lock anyway to avoid deadlock.
                boolean addRdr = tx == null || tx.optimistic();
                if (!addRdr && tx.readCommitted() && !tx.writeSet().contains(cctx.txKey(key)))
                    addRdr = true;
                LinkedHashMap<KeyCacheObject, Boolean> old = mappings.get(affNode);
                if (old == null)
                    mappings.put(affNode, old = new LinkedHashMap<>(3, 1f));
                old.put(key, addRdr);
            } else
                addResult(key, v, ver);
            break;
        } catch (IgniteCheckedException e) {
            onDone(e);
            break;
        } catch (GridCacheEntryRemovedException ignored) {
        // Retry.
        } finally {
            if (entry != null && tx == null)
                cctx.evicts().touch(entry, topVer);
        }
    }
    return saved;
}

Example 20 with CacheObject

use of org.apache.ignite.internal.processors.cache.CacheObject in project ignite by apache.

the class GridNearTxLocal method checkMissed.

/**
     * @param cacheCtx Cache context.
     * @param topVer Topology version.
     * @param map Return map.
     * @param missedMap Missed keys.
     * @param deserializeBinary Deserialize binary flag.
     * @param skipVals Skip values flag.
     * @param keepCacheObjects Keep cache objects flag.
     * @param skipStore Skip store flag.
     * @param expiryPlc Expiry policy.
     * @return Loaded key-value pairs.
     */
private <K, V> IgniteInternalFuture<Map<K, V>> checkMissed(final GridCacheContext cacheCtx, final AffinityTopologyVersion topVer, final Map<K, V> map, final Map<KeyCacheObject, GridCacheVersion> missedMap, final boolean deserializeBinary, final boolean skipVals, final boolean keepCacheObjects, final boolean skipStore, final boolean recovery, final boolean needVer, final ExpiryPolicy expiryPlc) {
    if (log.isDebugEnabled())
        log.debug("Loading missed values for missed map: " + missedMap);
    final boolean needReadVer = (serializable() && optimistic()) || needVer;
    return new GridEmbeddedFuture<>(new C2<Void, Exception, Map<K, V>>() {

        @Override
        public Map<K, V> apply(Void v, Exception e) {
            if (e != null) {
                setRollbackOnly();
                throw new GridClosureException(e);
            }
            return map;
        }
    }, loadMissing(cacheCtx, topVer, !skipStore, false, missedMap.keySet(), skipVals, needReadVer, !deserializeBinary, recovery, expiryPlc, new GridInClosure3<KeyCacheObject, Object, GridCacheVersion>() {

        @Override
        public void apply(KeyCacheObject key, Object val, GridCacheVersion loadVer) {
            if (isRollbackOnly()) {
                if (log.isDebugEnabled())
                    log.debug("Ignoring loaded value for read because transaction was rolled back: " + GridNearTxLocal.this);
                return;
            }
            CacheObject cacheVal = cacheCtx.toCacheObject(val);
            CacheObject visibleVal = cacheVal;
            IgniteTxKey txKey = cacheCtx.txKey(key);
            IgniteTxEntry txEntry = entry(txKey);
            if (txEntry != null) {
                if (!readCommitted())
                    txEntry.readValue(cacheVal);
                if (!F.isEmpty(txEntry.entryProcessors()))
                    visibleVal = txEntry.applyEntryProcessors(visibleVal);
            }
            assert txEntry != null || readCommitted() || skipVals;
            GridCacheEntryEx e = txEntry == null ? entryEx(cacheCtx, txKey, topVer) : txEntry.cached();
            if (readCommitted() || skipVals) {
                cacheCtx.evicts().touch(e, topologyVersion());
                if (visibleVal != null) {
                    cacheCtx.addResult(map, key, visibleVal, skipVals, keepCacheObjects, deserializeBinary, false, needVer ? loadVer : null, 0, 0);
                }
            } else {
                assert txEntry != null;
                txEntry.setAndMarkValid(cacheVal);
                if (needReadVer) {
                    assert loadVer != null;
                    txEntry.entryReadVersion(loadVer);
                }
                if (visibleVal != null) {
                    cacheCtx.addResult(map, key, visibleVal, skipVals, keepCacheObjects, deserializeBinary, false, needVer ? loadVer : null, 0, 0);
                }
            }
        }
    }));
}