Esempio n. 1
0
  /** {@inheritDoc} */
  @Override
  public GridFuture<Boolean> loadMissing(
      boolean async, final Collection<? extends K> keys, final GridInClosure2<K, V> closure) {
    GridFuture<Map<K, V>> f = cctx.near().txLoadAsync(this, keys, CU.<K, V>empty());

    return new GridEmbeddedFuture<Boolean, Map<K, V>>(
        cctx.kernalContext(),
        f,
        new C2<Map<K, V>, Exception, Boolean>() {
          @Override
          public Boolean apply(Map<K, V> map, Exception e) {
            if (e != null) {
              setRollbackOnly();

              throw new GridClosureException(e);
            }

            // Must loop through keys, not map entries,
            // as map entries may not have all the keys.
            for (K key : keys) closure.apply(key, map.get(key));

            return true;
          }
        });
  }
  /**
   * Peeks only near cache without looking into DHT cache.
   *
   * @param key Key.
   * @return Peeked value.
   */
  @Nullable
  public V peekNearOnly(K key) {
    try {
      return peek0(true, key, SMART, CU.<K, V>empty());
    } catch (GridCacheFilterFailedException ignored) {
      if (log.isDebugEnabled()) log.debug("Filter validation failed for key: " + key);

      return null;
    }
  }
    /** {@inheritDoc} */
    @Override
    public void remove() {
      if (currEntry == null) throw new IllegalStateException();

      assert currIter != null;

      currIter.remove();

      try {
        GridNearCache.this.remove(currEntry.getKey(), CU.<K, V>empty());
      } catch (GridException e) {
        throw new GridRuntimeException(e);
      }
    }
 /** @return Near entries. */
 public Set<GridCacheEntry<K, V>> nearEntries() {
   return super.entrySet(CU.<K, V>empty());
 }
Esempio n. 5
0
    /** @param res Result callback. */
    void onResult(GridNearLockResponse<K, V> res) {
      if (rcvRes.compareAndSet(false, true)) {
        if (res.error() != null) {
          if (log.isDebugEnabled())
            log.debug(
                "Finishing mini future with an error due to error in response [miniFut="
                    + this
                    + ", res="
                    + res
                    + ']');

          // Fail.
          if (res.error() instanceof GridCacheLockTimeoutException) onDone(false);
          else onDone(res.error());

          return;
        }

        int i = 0;

        long topVer = topSnapshot.get().topologyVersion();

        for (K k : keys) {
          while (true) {
            GridNearCacheEntry<K, V> entry = cctx.near().entryExx(k, topVer);

            try {
              if (res.dhtVersion(i) == null) {
                onDone(
                    new GridException(
                        "Failed to receive DHT version from remote node "
                            + "(will fail the lock): "
                            + res));

                return;
              }

              GridTuple3<GridCacheVersion, V, byte[]> oldValTup = valMap.get(entry.key());

              V oldVal = entry.rawGet();
              boolean hasOldVal = false;
              V newVal = res.value(i);
              byte[] newBytes = res.valueBytes(i);

              boolean readRecordable = false;

              if (retval) {
                readRecordable = cctx.events().isRecordable(EVT_CACHE_OBJECT_READ);

                if (readRecordable) hasOldVal = entry.hasValue();
              }

              GridCacheVersion dhtVer = res.dhtVersion(i);
              GridCacheVersion mappedVer = res.mappedVersion(i);

              if (newVal == null) {
                if (oldValTup != null) {
                  if (oldValTup.get1().equals(dhtVer)) {
                    newVal = oldValTup.get2();

                    newBytes = oldValTup.get3();
                  }

                  oldVal = oldValTup.get2();
                }
              }

              // Lock is held at this point, so we can set the
              // returned value if any.
              entry.resetFromPrimary(newVal, newBytes, lockVer, dhtVer, node.id());

              if (inTx() && implicitTx() && tx.onePhaseCommit()) {
                boolean pass = res.filterResult(i);

                tx.entry(k).filters(pass ? CU.<K, V>empty() : CU.<K, V>alwaysFalse());
              }

              entry.readyNearLock(
                  lockVer,
                  mappedVer,
                  res.committedVersions(),
                  res.rolledbackVersions(),
                  res.pending());

              if (retval) {
                if (readRecordable)
                  cctx.events()
                      .addEvent(
                          entry.partition(),
                          entry.key(),
                          tx,
                          null,
                          EVT_CACHE_OBJECT_READ,
                          newVal,
                          newVal != null || newBytes != null,
                          oldVal,
                          hasOldVal,
                          CU.subjectId(tx, cctx));

                cctx.cache().metrics0().onRead(false);
              }

              if (log.isDebugEnabled())
                log.debug("Processed response for entry [res=" + res + ", entry=" + entry + ']');

              break; // Inner while loop.
            } catch (GridCacheEntryRemovedException ignored) {
              if (log.isDebugEnabled())
                log.debug("Failed to add candidates because entry was removed (will renew).");

              // Replace old entry with new one.
              entries.set(i, (GridDistributedCacheEntry<K, V>) cctx.cache().entryEx(entry.key()));
            } catch (GridException e) {
              onDone(e);

              return;
            }
          }

          i++;
        }

        try {
          proceedMapping(mappings);
        } catch (GridException e) {
          onDone(e);
        }

        onDone(true);
      }
    }