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

Example 51 with IgniteTxEntry

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

the class GridNearOptimisticTxPrepareFuture method prepare.

/**
 * @param writes Write entries.
 * @param topLocked {@code True} if thread already acquired lock preventing topology change.
 * @param remap Remap flag.
 */
private void prepare(Iterable<IgniteTxEntry> writes, boolean topLocked, boolean remap) {
    AffinityTopologyVersion topVer = tx.topologyVersion();
    assert topVer.topologyVersion() > 0;
    txMapping = new GridDhtTxMapping();
    Map<Object, GridDistributedTxMapping> map = new HashMap<>();
    // Assign keys to primary nodes.
    GridDistributedTxMapping cur = null;
    Queue<GridDistributedTxMapping> mappings = new ArrayDeque<>();
    boolean hasNearCache = false;
    for (IgniteTxEntry write : writes) {
        write.clearEntryReadVersion();
        GridDistributedTxMapping updated = map(write, topVer, cur, topLocked, remap);
        if (updated == null)
            // an exception occurred while transaction mapping, stop further processing
            break;
        if (write.context().isNear())
            hasNearCache = true;
        if (cur != updated) {
            mappings.offer(updated);
            updated.last(true);
            ClusterNode primary = updated.primary();
            assert !primary.isLocal() || !cctx.kernalContext().clientNode() || write.context().isLocal();
            // Minor optimization to not create MappingKey: on client node can not have mapping for local node.
            Object key = cctx.kernalContext().clientNode() ? primary.id() : new MappingKey(primary.id(), primary.isLocal() && updated.hasNearCacheEntries());
            GridDistributedTxMapping prev = map.put(key, updated);
            if (prev != null)
                prev.last(false);
            if (updated.primary().isLocal()) {
                if (write.context().isNear())
                    tx.nearLocallyMapped(true);
                else if (write.context().isColocated())
                    tx.colocatedLocallyMapped(true);
            }
            cur = updated;
        }
    }
    if (isDone()) {
        if (log.isDebugEnabled())
            log.debug("Abandoning (re)map because future is done: " + this);
        return;
    }
    if (keyLockFut != null)
        keyLockFut.onAllKeysAdded();
    tx.addEntryMapping(mappings);
    cctx.mvcc().recheckPendingLocks();
    tx.transactionNodes(txMapping.transactionNodes());
    if (!hasNearCache)
        checkOnePhase(txMapping);
    proceedPrepare(mappings);
}