@NotNull
 public static char[] adaptiveLoadText(@NotNull Reader reader) throws IOException {
   char[] chars = new char[4096];
   List<char[]> buffers = null;
   int count = 0;
   int total = 0;
   while (true) {
     int n = reader.read(chars, count, chars.length - count);
     if (n <= 0) break;
     count += n;
     if (total > 1024 * 1024 * 10) throw new FileTooBigException("File too big " + reader);
     total += n;
     if (count == chars.length) {
       if (buffers == null) {
         buffers = new ArrayList<char[]>();
       }
       buffers.add(chars);
       int newLength = Math.min(1024 * 1024, chars.length * 2);
       chars = new char[newLength];
       count = 0;
     }
   }
   char[] result = new char[total];
   if (buffers != null) {
     for (char[] buffer : buffers) {
       System.arraycopy(buffer, 0, result, result.length - total, buffer.length);
       total -= buffer.length;
     }
   }
   System.arraycopy(chars, 0, result, result.length - total, total);
   return result;
 }
Пример #2
0
  /**
   * @return Collection of readers after check.
   * @throws GridCacheEntryRemovedException If removed.
   */
  public Collection<ReaderId> checkReaders() throws GridCacheEntryRemovedException {
    synchronized (mux) {
      checkObsolete();

      if (!readers.isEmpty()) {
        List<ReaderId> rmv = null;

        for (ReaderId reader : readers) {
          if (!cctx.discovery().alive(reader.nodeId())) {
            if (rmv == null) rmv = new LinkedList<ReaderId>();

            rmv.add(reader);
          }
        }

        if (rmv != null) {
          readers = new LinkedList<ReaderId>(readers);

          for (ReaderId rdr : rmv) readers.remove(rdr);

          readers = Collections.unmodifiableList(readers);
        }
      }

      return readers;
    }
  }
Пример #3
0
  /** {@inheritDoc} */
  @SuppressWarnings("TypeMayBeWeakened")
  @Nullable
  private Collection<Object> unmarshalFieldsCollection(
      @Nullable Collection<byte[]> byteCol, GridCacheContext<K, V> ctx, ClassLoader ldr)
      throws GridException {
    assert ctx != null;
    assert ldr != null;

    Collection<Object> col = unmarshalCollection(byteCol, ctx, ldr);
    Collection<Object> col0 = null;

    if (col != null) {
      col0 = new ArrayList<>(col.size());

      for (Object o : col) {
        List<Object> list = (List<Object>) o;
        List<Object> list0 = new ArrayList<>(list.size());

        for (Object obj : list)
          list0.add(obj != null ? ctx.marshaller().unmarshal((byte[]) obj, ldr) : null);

        col0.add(list0);
      }
    }

    return col0;
  }
  /** {@inheritDoc} */
  @Override
  public void explicitUndeploy(UUID nodeId, String rsrcName) {
    Collection<SharedDeployment> undeployed = new LinkedList<SharedDeployment>();

    synchronized (mux) {
      for (Iterator<List<SharedDeployment>> i1 = cache.values().iterator(); i1.hasNext(); ) {
        List<SharedDeployment> deps = i1.next();

        for (Iterator<SharedDeployment> i2 = deps.iterator(); i2.hasNext(); ) {
          SharedDeployment dep = i2.next();

          if (dep.hasName(rsrcName)) {
            if (!dep.isUndeployed()) {
              dep.undeploy();

              dep.onRemoved();

              // Undeploy.
              i2.remove();

              undeployed.add(dep);

              if (log.isInfoEnabled()) log.info("Undeployed per-version class loader: " + dep);
            }

            break;
          }
        }

        if (deps.isEmpty()) i1.remove();
      }
    }

    recordUndeployed(null, undeployed);
  }
Пример #5
0
  /** {@inheritDoc} */
  @Override
  public void addAttributeListener(GridTaskSessionAttributeListener lsnr, boolean rewind) {
    A.notNull(lsnr, "lsnr");

    Map<Object, Object> attrs = null;

    List<GridTaskSessionAttributeListener> lsnrs;

    synchronized (mux) {
      lsnrs = new ArrayList<GridTaskSessionAttributeListener>(this.lsnrs.size());

      lsnrs.addAll(this.lsnrs);

      lsnrs.add(lsnr);

      lsnrs = Collections.unmodifiableList(lsnrs);

      this.lsnrs = lsnrs;

      if (rewind) attrs = new HashMap<Object, Object>(this.attrs);
    }

    if (rewind) {
      for (Map.Entry<Object, Object> entry : attrs.entrySet()) {
        for (GridTaskSessionAttributeListener l : lsnrs) {
          l.onAttributeSet(entry.getKey(), entry.getValue());
        }
      }
    }
  }
Пример #6
0
  /** {@inheritDoc} */
  @SuppressWarnings("TypeMayBeWeakened")
  @Nullable
  private Collection<byte[]> marshalFieldsCollection(
      @Nullable Collection<Object> col, GridCacheContext<K, V> ctx) throws GridException {
    assert ctx != null;

    if (col == null) return null;

    Collection<List<Object>> col0 = new ArrayList<>(col.size());

    for (Object o : col) {
      List<GridIndexingEntity<?>> list = (List<GridIndexingEntity<?>>) o;
      List<Object> list0 = new ArrayList<>(list.size());

      for (GridIndexingEntity<?> ent : list) {
        if (ent.bytes() != null) list0.add(ent.bytes());
        else {
          if (ctx.deploymentEnabled()) prepareObject(ent.value(), ctx);

          list0.add(CU.marshal(ctx, ent.value()));
        }
      }

      col0.add(list0);
    }

    return marshalCollection(col0, ctx);
  }
 @NotNull
 public static byte[] adaptiveLoadBytes(@NotNull InputStream stream) throws IOException {
   byte[] bytes = new byte[4096];
   List<byte[]> buffers = null;
   int count = 0;
   int total = 0;
   while (true) {
     int n = stream.read(bytes, count, bytes.length - count);
     if (n <= 0) break;
     count += n;
     if (total > 1024 * 1024 * 10) throw new FileTooBigException("File too big " + stream);
     total += n;
     if (count == bytes.length) {
       if (buffers == null) {
         buffers = new ArrayList<byte[]>();
       }
       buffers.add(bytes);
       int newLength = Math.min(1024 * 1024, bytes.length * 2);
       bytes = new byte[newLength];
       count = 0;
     }
   }
   byte[] result = new byte[total];
   if (buffers != null) {
     for (byte[] buffer : buffers) {
       System.arraycopy(buffer, 0, result, result.length - total, buffer.length);
       total -= buffer.length;
     }
   }
   System.arraycopy(bytes, 0, result, result.length - total, total);
   return result;
 }
    /** {@inheritDoc} */
    @Override
    protected IgniteBiTuple<Long, List<IgniteExceptionRegistry.ExceptionInfo>> run(
        Map<UUID, Long> arg) {
      Long lastOrder = arg.get(ignite.localNode().id());

      long order = lastOrder != null ? lastOrder : 0;

      List<IgniteExceptionRegistry.ExceptionInfo> errors =
          ignite.context().exceptionRegistry().getErrors(order);

      List<IgniteExceptionRegistry.ExceptionInfo> wrapped = new ArrayList<>(errors.size());

      for (IgniteExceptionRegistry.ExceptionInfo error : errors) {
        if (error.order() > order) order = error.order();

        wrapped.add(
            new IgniteExceptionRegistry.ExceptionInfo(
                error.order(),
                new VisorExceptionWrapper(error.error()),
                error.message(),
                error.threadId(),
                error.threadName(),
                error.time()));
      }

      return new IgniteBiTuple<>(order, wrapped);
    }
  /**
   * @param idx Index.
   * @return Conflict version.
   */
  @Nullable
  public GridCacheVersion conflictVersion(int idx) {
    if (conflictVers != null) {
      assert idx >= 0 && idx < conflictVers.size();

      return conflictVers.get(idx);
    }

    return null;
  }
Пример #10
0
    /** {@inheritDoc} */
    @Override
    public <T extends Extension> void registerExtension(Class<T> extensionItf, T extensionImpl) {
      List<Object> list = extensionsCollector.get(extensionItf);

      if (list == null) {
        list = new ArrayList<>();

        extensionsCollector.put(extensionItf, list);
      }

      list.add(extensionImpl);
    }
 private void spawnRareDeposit(
     final List<AbstractDepositEffectArea> depositAreas, final short casterLevel) {
   AbstractDepositEffectArea rareDeposit = null;
   for (int i = 0, n = depositAreas.size(); i < n; ++i) {
     final AbstractDepositEffectArea area = depositAreas.get(i);
     if (rareDeposit == null) {
       rareDeposit = area;
     } else if (area.getDepositLevel() > rareDeposit.getDepositLevel()) {
       rareDeposit = area;
     }
   }
   this.spawnDeposit((int) rareDeposit.getBaseId());
 }
 @NotNull
 public static Future<Void> asyncDelete(@NotNull Collection<File> files) {
   List<File> tempFiles = new ArrayList<File>();
   for (File file : files) {
     final File tempFile = renameToTempFileOrDelete(file);
     if (tempFile != null) {
       tempFiles.add(tempFile);
     }
   }
   if (!tempFiles.isEmpty()) {
     return startDeletionThread(tempFiles.toArray(new File[tempFiles.size()]));
   }
   return new FixedFuture<Void>(null);
 }
Пример #13
0
 @NotNull
 public static List<String> loadLines(@NotNull Reader reader) throws IOException {
   List<String> lines = new ArrayList<String>();
   BufferedReader bufferedReader = new BufferedReader(reader);
   try {
     String line;
     while ((line = bufferedReader.readLine()) != null) {
       lines.add(line);
     }
   } finally {
     bufferedReader.close();
   }
   return lines;
 }
Пример #14
0
  /**
   * Gets values referenced by sequential keys, e.g. {@code key1...keyN}.
   *
   * @param keyPrefix Key prefix, e.g. {@code key} for {@code key1...keyN}.
   * @param params Parameters map.
   * @return Values.
   */
  @Nullable
  protected List<Object> values(String keyPrefix, Map<String, Object> params) {
    assert keyPrefix != null;

    List<Object> vals = new LinkedList<>();

    for (int i = 1; ; i++) {
      String key = keyPrefix + i;

      if (params.containsKey(key)) vals.add(params.get(key));
      else break;
    }

    return vals;
  }
Пример #15
0
  /** {@inheritDoc} */
  @Override
  public boolean removeAttributeListener(GridTaskSessionAttributeListener lsnr) {
    A.notNull(lsnr, "lsnr");

    synchronized (mux) {
      List<GridTaskSessionAttributeListener> lsnrs =
          new ArrayList<GridTaskSessionAttributeListener>(this.lsnrs);

      boolean rmv = lsnrs.remove(lsnr);

      this.lsnrs = Collections.unmodifiableList(lsnrs);

      return rmv;
    }
  }
 private void spawnDeposit(
     final List<AbstractDepositEffectArea> depositAreas, final short casterLevel) {
   final int roll = MathHelper.random(100);
   AbstractDepositEffectArea deposit = null;
   for (int i = 0, n = depositAreas.size(); i < n; ++i) {
     final AbstractDepositEffectArea area = depositAreas.get(i);
     if (deposit == null) {
       deposit = area;
     } else if ((roll < deposit.getDepositLevel() && roll > area.getDepositLevel())
         || (roll > area.getDepositLevel()
             && area.getDepositLevel() > deposit.getDepositLevel())) {
       deposit = area;
     }
   }
   this.spawnDeposit((int) deposit.getBaseId());
 }
  /**
   * @param p Partition.
   * @param topVer Topology version ({@code -1} for all nodes).
   * @param state Partition state.
   * @param states Additional partition states.
   * @return List of nodes for the partition.
   */
  private List<ClusterNode> nodes(
      int p,
      AffinityTopologyVersion topVer,
      GridDhtPartitionState state,
      GridDhtPartitionState... states) {
    Collection<UUID> allIds =
        topVer.topologyVersion() > 0 ? F.nodeIds(CU.affinityNodes(cctx, topVer)) : null;

    lock.readLock().lock();

    try {
      assert node2part != null && node2part.valid()
          : "Invalid node-to-partitions map [topVer="
              + topVer
              + ", allIds="
              + allIds
              + ", node2part="
              + node2part
              + ", cache="
              + cctx.name()
              + ']';

      Collection<UUID> nodeIds = part2node.get(p);

      // Node IDs can be null if both, primary and backup, nodes disappear.
      int size = nodeIds == null ? 0 : nodeIds.size();

      if (size == 0) return Collections.emptyList();

      List<ClusterNode> nodes = new ArrayList<>(size);

      for (UUID id : nodeIds) {
        if (topVer.topologyVersion() > 0 && !allIds.contains(id)) continue;

        if (hasState(p, id, state, states)) {
          ClusterNode n = cctx.discovery().node(id);

          if (n != null && (topVer.topologyVersion() < 0 || n.order() <= topVer.topologyVersion()))
            nodes.add(n);
        }
      }

      return nodes;
    } finally {
      lock.readLock().unlock();
    }
  }
Пример #18
0
    /** @return Map extension interface to array of implementation. */
    public Map<Class<?>, Object[]> createExtensionMap() {
      Map<Class<?>, Object[]> extensions = new HashMap<>(extensionsCollector.size() * 2, 0.5f);

      for (Map.Entry<Class<?>, List<Object>> entry : extensionsCollector.entrySet()) {
        Class<?> extensionItf = entry.getKey();

        List<Object> implementations = entry.getValue();

        Object[] implArr = (Object[]) Array.newInstance(extensionItf, implementations.size());

        implArr = implementations.toArray(implArr);

        extensions.put(extensionItf, implArr);
      }

      return extensions;
    }
Пример #19
0
  /** {@inheritDoc} */
  @Override
  protected boolean hasReaders() throws GridCacheEntryRemovedException {
    synchronized (mux) {
      checkReaders();

      return !readers.isEmpty();
    }
  }
Пример #20
0
  /**
   * Finds all files in folder and in it's sub-tree of specified depth.
   *
   * @param file Starting folder
   * @param maxDepth Depth of the tree. If 1 - just look in the folder, no sub-folders.
   * @param filter file filter.
   * @return List of found files.
   */
  public static List<VisorLogFile> fileTree(File file, int maxDepth, @Nullable FileFilter filter) {
    if (file.isDirectory()) {
      File[] files = (filter == null) ? file.listFiles() : file.listFiles(filter);

      if (files == null) return Collections.emptyList();

      List<VisorLogFile> res = new ArrayList<>(files.length);

      for (File f : files) {
        if (f.isFile() && f.length() > 0) res.add(new VisorLogFile(f));
        else if (maxDepth > 1) res.addAll(fileTree(f, maxDepth - 1, filter));
      }

      return res;
    }

    return F.asList(new VisorLogFile(file));
  }
 private void findTestedAndInjectableFields(@NotNull Field[] fieldsDeclaredInTestClass) {
   for (Field field : fieldsDeclaredInTestClass) {
     if (field.isAnnotationPresent(Injectable.class)) {
       MockedType mockedType = new MockedType(field);
       injectableFields.add(mockedType);
     } else {
       addAsTestedFieldIfApplicable(field);
     }
   }
 }
  private boolean findAllTestedAndInjectableFieldsInTestClassHierarchy(
      @NotNull Class<?> testClass) {
    Class<?> classWithFields = testClass;

    do {
      Field[] fields = classWithFields.getDeclaredFields();
      findTestedAndInjectableFields(fields);
      classWithFields = classWithFields.getSuperclass();
    } while (classWithFields.getClassLoader() != null);

    return !testedFields.isEmpty();
  }
 /** @param removeProcessor parent, child */
 public static <T> Collection<T> removeAncestors(
     final Collection<T> files,
     final Convertor<T, String> convertor,
     final PairProcessor<T, T> removeProcessor) {
   if (files.isEmpty()) return files;
   final TreeMap<String, T> paths = new TreeMap<String, T>();
   for (T file : files) {
     final String path = convertor.convert(file);
     assert path != null;
     final String canonicalPath = toCanonicalPath(path);
     paths.put(canonicalPath, file);
   }
   final List<Map.Entry<String, T>> ordered =
       new ArrayList<Map.Entry<String, T>>(paths.entrySet());
   final List<T> result = new ArrayList<T>(ordered.size());
   result.add(ordered.get(0).getValue());
   for (int i = 1; i < ordered.size(); i++) {
     final Map.Entry<String, T> entry = ordered.get(i);
     final String child = entry.getKey();
     boolean parentNotFound = true;
     for (int j = i - 1; j >= 0; j--) {
       // possible parents
       final String parent = ordered.get(j).getKey();
       if (parent == null) continue;
       if (startsWith(child, parent)
           && removeProcessor.process(ordered.get(j).getValue(), entry.getValue())) {
         parentNotFound = false;
         break;
       }
     }
     if (parentNotFound) {
       result.add(entry.getValue());
     }
   }
   return result;
 }
  /** {@inheritDoc} */
  @Nullable
  @Override
  protected Map<UUID, IgniteBiTuple<Long, List<IgniteExceptionRegistry.ExceptionInfo>>> reduce0(
      List<ComputeJobResult> results) {
    Map<UUID, IgniteBiTuple<Long, List<IgniteExceptionRegistry.ExceptionInfo>>> taskRes =
        new HashMap<>(results.size());

    for (ComputeJobResult res : results) {
      IgniteBiTuple<Long, List<IgniteExceptionRegistry.ExceptionInfo>> jobRes = res.getData();

      taskRes.put(res.getNode().id(), jobRes);
    }

    return taskRes;
  }
Пример #25
0
  /**
   * @param nodeId Reader to remove.
   * @param msgId Message ID.
   * @return {@code True} if reader was removed as a result of this operation.
   * @throws GridCacheEntryRemovedException If entry was removed.
   */
  public boolean removeReader(UUID nodeId, long msgId) throws GridCacheEntryRemovedException {
    synchronized (mux) {
      checkObsolete();

      ReaderId reader = readerId(nodeId);

      if (reader == null || reader.messageId() > msgId) return false;

      readers = new LinkedList<ReaderId>(readers);

      readers.remove(reader);

      // Seal.
      readers = Collections.unmodifiableList(readers);

      return true;
    }
  }
  private void addAsTestedFieldIfApplicable(@NotNull Field fieldFromTestClass) {
    for (Annotation fieldAnnotation : fieldFromTestClass.getDeclaredAnnotations()) {
      Tested testedMetadata;

      if (fieldAnnotation instanceof Tested) {
        testedMetadata = (Tested) fieldAnnotation;
      } else {
        testedMetadata = fieldAnnotation.annotationType().getAnnotation(Tested.class);
      }

      if (testedMetadata != null) {
        TestedField testedField =
            new TestedField(injectionState, fieldFromTestClass, testedMetadata);
        testedFields.add(testedField);
        break;
      }
    }
  }
 private static void collectMatchedFiles(
     @NotNull File absoluteRoot,
     @NotNull File root,
     @NotNull Pattern pattern,
     @NotNull List<File> files) {
   final File[] dirs = root.listFiles();
   if (dirs == null) return;
   for (File dir : dirs) {
     if (dir.isFile()) {
       final String relativePath = getRelativePath(absoluteRoot, dir);
       if (relativePath != null) {
         final String path = toSystemIndependentName(relativePath);
         if (pattern.matcher(path).matches()) {
           files.add(dir);
         }
       }
     } else {
       collectMatchedFiles(absoluteRoot, dir, pattern, files);
     }
   }
 }
  /**
   * @param nodeId Primary node ID.
   * @param req Request.
   * @return Remote transaction.
   * @throws GridException If failed.
   * @throws GridDistributedLockCancelledException If lock has been cancelled.
   */
  @SuppressWarnings({"RedundantTypeArguments"})
  @Nullable
  public GridNearTxRemote<K, V> startRemoteTx(UUID nodeId, GridDhtLockRequest<K, V> req)
      throws GridException, GridDistributedLockCancelledException {
    List<byte[]> nearKeyBytes = req.nearKeyBytes();

    GridNearTxRemote<K, V> tx = null;

    ClassLoader ldr = ctx.deploy().globalLoader();

    if (ldr != null) {
      for (int i = 0; i < nearKeyBytes.size(); i++) {
        byte[] bytes = nearKeyBytes.get(i);

        if (bytes == null) continue;

        K key = req.nearKeys().get(i);

        Collection<GridCacheMvccCandidate<K>> cands = req.candidatesByIndex(i);

        if (log.isDebugEnabled()) log.debug("Unmarshalled key: " + key);

        GridNearCacheEntry<K, V> entry = null;

        while (true) {
          try {
            entry = peekExx(key);

            if (entry != null) {
              entry.keyBytes(bytes);

              // Handle implicit locks for pessimistic transactions.
              if (req.inTx()) {
                tx = ctx.tm().tx(req.version());

                if (tx != null) tx.addWrite(key, bytes, null /*Value.*/, null /*Value bytes.*/);
                else {
                  tx =
                      new GridNearTxRemote<K, V>(
                          nodeId,
                          req.nearNodeId(),
                          req.threadId(),
                          req.version(),
                          null,
                          PESSIMISTIC,
                          req.isolation(),
                          req.isInvalidate(),
                          req.timeout(),
                          key,
                          bytes,
                          null, // Value.
                          null, // Value bytes.
                          ctx);

                  if (tx.empty()) return tx;

                  tx = ctx.tm().onCreated(tx);

                  if (tx == null || !ctx.tm().onStarted(tx))
                    throw new GridCacheTxRollbackException(
                        "Failed to acquire lock "
                            + "(transaction has been completed): "
                            + req.version());
                }
              }

              // Add remote candidate before reordering.
              entry.addRemote(
                  req.nodeId(),
                  nodeId,
                  req.threadId(),
                  req.version(),
                  req.timeout(),
                  tx != null && tx.ec(),
                  tx != null,
                  tx != null && tx.implicitSingle());

              // Remote candidates for ordered lock queuing.
              entry.addRemoteCandidates(
                  cands, req.version(), req.committedVersions(), req.rolledbackVersions());

              entry.orderOwned(req.version(), req.owned(entry.key()));
            }

            // Double-check in case if sender node left the grid.
            if (ctx.discovery().node(req.nodeId()) == null) {
              if (log.isDebugEnabled())
                log.debug("Node requesting lock left grid (lock request will be ignored): " + req);

              if (tx != null) tx.rollback();

              return null;
            }

            // Entry is legit.
            break;
          } catch (GridCacheEntryRemovedException ignored) {
            assert entry.obsoleteVersion() != null
                : "Obsolete flag not set on removed entry: " + entry;

            if (log.isDebugEnabled())
              log.debug("Received entry removed exception (will retry on renewed entry): " + entry);

            if (tx != null) {
              tx.clearEntry(entry.key());

              if (log.isDebugEnabled())
                log.debug(
                    "Cleared removed entry from remote transaction (will retry) [entry="
                        + entry
                        + ", tx="
                        + tx
                        + ']');
            }
          }
        }
      }
    } else {
      String err = "Failed to acquire deployment class loader for message: " + req;

      U.warn(log, err);

      throw new GridException(err);
    }

    return tx;
  }
Пример #29
0
  /**
   * Creates REST request.
   *
   * @param cmd Command.
   * @param params Parameters.
   * @return REST request.
   * @throws GridException If creation failed.
   */
  @Nullable
  private GridRestRequest createRequest(
      GridRestCommand cmd, Map<String, Object> params, ServletRequest req) throws GridException {
    GridRestRequest restReq;

    switch (cmd) {
      case CACHE_GET:
      case CACHE_GET_ALL:
      case CACHE_PUT:
      case CACHE_PUT_ALL:
      case CACHE_REMOVE:
      case CACHE_REMOVE_ALL:
      case CACHE_ADD:
      case CACHE_CAS:
      case CACHE_METRICS:
      case CACHE_REPLACE:
      case CACHE_DECREMENT:
      case CACHE_INCREMENT:
      case CACHE_APPEND:
      case CACHE_PREPEND:
        {
          GridRestCacheRequest restReq0 = new GridRestCacheRequest();

          restReq0.cacheName((String) params.get("cacheName"));
          restReq0.key(params.get("key"));
          restReq0.value(params.get("val"));
          restReq0.value2(params.get("val2"));

          Object val1 = params.get("val1");

          if (val1 != null) restReq0.value(val1);

          restReq0.cacheFlags(intValue("cacheFlags", params, 0));
          restReq0.ttl(longValue("exp", params, null));
          restReq0.initial(longValue("init", params, null));
          restReq0.delta(longValue("delta", params, null));

          if (cmd == CACHE_GET_ALL || cmd == CACHE_PUT_ALL || cmd == CACHE_REMOVE_ALL) {
            List<Object> keys = values("k", params);
            List<Object> vals = values("v", params);

            if (keys.size() < vals.size())
              throw new GridException(
                  "Number of keys must be greater or equals to number of values.");

            Map<Object, Object> map = U.newHashMap(keys.size());

            Iterator<Object> keyIt = keys.iterator();
            Iterator<Object> valIt = vals.iterator();

            while (keyIt.hasNext()) map.put(keyIt.next(), valIt.hasNext() ? valIt.next() : null);

            restReq0.values(map);
          }

          restReq = restReq0;

          break;
        }

      case TOPOLOGY:
      case NODE:
        {
          GridRestTopologyRequest restReq0 = new GridRestTopologyRequest();

          restReq0.includeMetrics(Boolean.parseBoolean((String) params.get("mtr")));
          restReq0.includeAttributes(Boolean.parseBoolean((String) params.get("attr")));

          restReq0.nodeIp((String) params.get("ip"));

          restReq0.nodeId(uuidValue("id", params));

          restReq = restReq0;

          break;
        }

      case EXE:
      case RESULT:
      case NOOP:
        {
          GridRestTaskRequest restReq0 = new GridRestTaskRequest();

          restReq0.taskId((String) params.get("id"));
          restReq0.taskName((String) params.get("name"));

          restReq0.params(values("p", params));

          restReq0.async(Boolean.parseBoolean((String) params.get("async")));

          restReq0.timeout(longValue("timeout", params, 0L));

          restReq = restReq0;

          break;
        }

      case LOG:
        {
          GridRestLogRequest restReq0 = new GridRestLogRequest();

          restReq0.path((String) params.get("path"));

          restReq0.from(intValue("from", params, -1));
          restReq0.to(intValue("to", params, -1));

          restReq = restReq0;

          break;
        }

      case VERSION:
        {
          restReq = new GridRestRequest();

          break;
        }

      default:
        throw new GridException("Invalid command: " + cmd);
    }

    restReq.address(new InetSocketAddress(req.getRemoteAddr(), req.getRemotePort()));

    restReq.command(cmd);

    if (params.containsKey("gridgain.login") || params.containsKey("gridgain.password")) {
      GridSecurityCredentials cred =
          new GridSecurityCredentials(
              (String) params.get("gridgain.login"), (String) params.get("gridgain.password"));

      restReq.credentials(cred);
    }

    String clientId = (String) params.get("clientId");

    try {
      if (clientId != null) restReq.clientId(UUID.fromString(clientId));
    } catch (Exception ignored) {
      // Ignore invalid client id. Rest handler will process this logic.
    }

    String destId = (String) params.get("destId");

    try {
      if (destId != null) restReq.destinationId(UUID.fromString(destId));
    } catch (IllegalArgumentException ignored) {
      // Don't fail - try to execute locally.
    }

    String sesTokStr = (String) params.get("sessionToken");

    try {
      if (sesTokStr != null) restReq.sessionToken(U.hexString2ByteArray(sesTokStr));
    } catch (IllegalArgumentException ignored) {
      // Ignore invalid session token.
    }

    return restReq;
  }
  /**
   * Starts activity.
   *
   * @throws IgniteInterruptedCheckedException If interrupted.
   */
  public void init() throws IgniteInterruptedCheckedException {
    if (isDone()) return;

    if (init.compareAndSet(false, true)) {
      if (isDone()) return;

      try {
        // Wait for event to occur to make sure that discovery
        // will return corresponding nodes.
        U.await(evtLatch);

        assert discoEvt != null : this;
        assert !dummy && !forcePreload : this;

        ClusterNode oldest = CU.oldestAliveCacheServerNode(cctx, exchId.topologyVersion());

        oldestNode.set(oldest);

        startCaches();

        // True if client node joined or failed.
        boolean clientNodeEvt;

        if (F.isEmpty(reqs)) {
          int type = discoEvt.type();

          assert type == EVT_NODE_JOINED || type == EVT_NODE_LEFT || type == EVT_NODE_FAILED
              : discoEvt;

          clientNodeEvt = CU.clientNode(discoEvt.eventNode());
        } else {
          assert discoEvt.type() == EVT_DISCOVERY_CUSTOM_EVT : discoEvt;

          boolean clientOnlyStart = true;

          for (DynamicCacheChangeRequest req : reqs) {
            if (!req.clientStartOnly()) {
              clientOnlyStart = false;

              break;
            }
          }

          clientNodeEvt = clientOnlyStart;
        }

        if (clientNodeEvt) {
          ClusterNode node = discoEvt.eventNode();

          // Client need to initialize affinity for local join event or for stated client caches.
          if (!node.isLocal()) {
            for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
              if (cacheCtx.isLocal()) continue;

              GridDhtPartitionTopology top = cacheCtx.topology();

              top.updateTopologyVersion(exchId, this, -1, stopping(cacheCtx.cacheId()));

              if (cacheCtx.affinity().affinityTopologyVersion() == AffinityTopologyVersion.NONE) {
                initTopology(cacheCtx);

                top.beforeExchange(this);
              } else
                cacheCtx.affinity().clientEventTopologyChange(discoEvt, exchId.topologyVersion());
            }

            if (exchId.isLeft())
              cctx.mvcc().removeExplicitNodeLocks(exchId.nodeId(), exchId.topologyVersion());

            onDone(exchId.topologyVersion());

            skipPreload = cctx.kernalContext().clientNode();

            return;
          }
        }

        if (cctx.kernalContext().clientNode()) {
          skipPreload = true;

          for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
            if (cacheCtx.isLocal()) continue;

            GridDhtPartitionTopology top = cacheCtx.topology();

            top.updateTopologyVersion(exchId, this, -1, stopping(cacheCtx.cacheId()));
          }

          for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
            if (cacheCtx.isLocal()) continue;

            initTopology(cacheCtx);
          }

          if (oldestNode.get() != null) {
            rmtNodes =
                new ConcurrentLinkedQueue<>(
                    CU.aliveRemoteServerNodesWithCaches(cctx, exchId.topologyVersion()));

            rmtIds = Collections.unmodifiableSet(new HashSet<>(F.nodeIds(rmtNodes)));

            ready.set(true);

            initFut.onDone(true);

            if (log.isDebugEnabled()) log.debug("Initialized future: " + this);

            sendPartitions();
          } else onDone(exchId.topologyVersion());

          return;
        }

        assert oldestNode.get() != null;

        for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
          if (isCacheAdded(cacheCtx.cacheId(), exchId.topologyVersion())) {
            if (cacheCtx
                .discovery()
                .cacheAffinityNodes(cacheCtx.name(), topologyVersion())
                .isEmpty())
              U.quietAndWarn(log, "No server nodes found for cache client: " + cacheCtx.namex());
          }

          cacheCtx.preloader().onExchangeFutureAdded();
        }

        List<String> cachesWithoutNodes = null;

        if (exchId.isLeft()) {
          for (String name : cctx.cache().cacheNames()) {
            if (cctx.discovery().cacheAffinityNodes(name, topologyVersion()).isEmpty()) {
              if (cachesWithoutNodes == null) cachesWithoutNodes = new ArrayList<>();

              cachesWithoutNodes.add(name);

              // Fire event even if there is no client cache started.
              if (cctx.gridEvents().isRecordable(EventType.EVT_CACHE_NODES_LEFT)) {
                Event evt =
                    new CacheEvent(
                        name,
                        cctx.localNode(),
                        cctx.localNode(),
                        "All server nodes have left the cluster.",
                        EventType.EVT_CACHE_NODES_LEFT,
                        0,
                        false,
                        null,
                        null,
                        null,
                        null,
                        false,
                        null,
                        false,
                        null,
                        null,
                        null);

                cctx.gridEvents().record(evt);
              }
            }
          }
        }

        if (cachesWithoutNodes != null) {
          StringBuilder sb =
              new StringBuilder(
                  "All server nodes for the following caches have left the cluster: ");

          for (int i = 0; i < cachesWithoutNodes.size(); i++) {
            String cache = cachesWithoutNodes.get(i);

            sb.append('\'').append(cache).append('\'');

            if (i != cachesWithoutNodes.size() - 1) sb.append(", ");
          }

          U.quietAndWarn(log, sb.toString());

          U.quietAndWarn(log, "Must have server nodes for caches to operate.");
        }

        assert discoEvt != null;

        assert exchId.nodeId().equals(discoEvt.eventNode().id());

        for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
          GridClientPartitionTopology clientTop =
              cctx.exchange().clearClientTopology(cacheCtx.cacheId());

          long updSeq = clientTop == null ? -1 : clientTop.lastUpdateSequence();

          // Update before waiting for locks.
          if (!cacheCtx.isLocal())
            cacheCtx
                .topology()
                .updateTopologyVersion(exchId, this, updSeq, stopping(cacheCtx.cacheId()));
        }

        // Grab all alive remote nodes with order of equal or less than last joined node.
        rmtNodes =
            new ConcurrentLinkedQueue<>(
                CU.aliveRemoteServerNodesWithCaches(cctx, exchId.topologyVersion()));

        rmtIds = Collections.unmodifiableSet(new HashSet<>(F.nodeIds(rmtNodes)));

        for (Map.Entry<UUID, GridDhtPartitionsSingleMessage> m : singleMsgs.entrySet())
          // If received any messages, process them.
          onReceive(m.getKey(), m.getValue());

        for (Map.Entry<UUID, GridDhtPartitionsFullMessage> m : fullMsgs.entrySet())
          // If received any messages, process them.
          onReceive(m.getKey(), m.getValue());

        AffinityTopologyVersion topVer = exchId.topologyVersion();

        for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
          if (cacheCtx.isLocal()) continue;

          // Must initialize topology after we get discovery event.
          initTopology(cacheCtx);

          cacheCtx.preloader().updateLastExchangeFuture(this);
        }

        IgniteInternalFuture<?> partReleaseFut = cctx.partitionReleaseFuture(topVer);

        // Assign to class variable so it will be included into toString() method.
        this.partReleaseFut = partReleaseFut;

        if (log.isDebugEnabled()) log.debug("Before waiting for partition release future: " + this);

        while (true) {
          try {
            partReleaseFut.get(2 * cctx.gridConfig().getNetworkTimeout(), TimeUnit.MILLISECONDS);

            break;
          } catch (IgniteFutureTimeoutCheckedException ignored) {
            // Print pending transactions and locks that might have led to hang.
            dumpPendingObjects();
          }
        }

        if (log.isDebugEnabled()) log.debug("After waiting for partition release future: " + this);

        if (!F.isEmpty(reqs)) blockGateways();

        if (exchId.isLeft())
          cctx.mvcc().removeExplicitNodeLocks(exchId.nodeId(), exchId.topologyVersion());

        IgniteInternalFuture<?> locksFut = cctx.mvcc().finishLocks(exchId.topologyVersion());

        while (true) {
          try {
            locksFut.get(2 * cctx.gridConfig().getNetworkTimeout(), TimeUnit.MILLISECONDS);

            break;
          } catch (IgniteFutureTimeoutCheckedException ignored) {
            U.warn(
                log,
                "Failed to wait for locks release future. "
                    + "Dumping pending objects that might be the cause: "
                    + cctx.localNodeId());

            U.warn(log, "Locked entries:");

            Map<IgniteTxKey, Collection<GridCacheMvccCandidate>> locks =
                cctx.mvcc().unfinishedLocks(exchId.topologyVersion());

            for (Map.Entry<IgniteTxKey, Collection<GridCacheMvccCandidate>> e : locks.entrySet())
              U.warn(log, "Locked entry [key=" + e.getKey() + ", mvcc=" + e.getValue() + ']');
          }
        }

        for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
          if (cacheCtx.isLocal()) continue;

          // Notify replication manager.
          GridCacheContext drCacheCtx =
              cacheCtx.isNear() ? cacheCtx.near().dht().context() : cacheCtx;

          if (drCacheCtx.isDrEnabled()) drCacheCtx.dr().beforeExchange(topVer, exchId.isLeft());

          // Partition release future is done so we can flush the write-behind store.
          cacheCtx.store().forceFlush();

          // Process queued undeploys prior to sending/spreading map.
          cacheCtx.preloader().unwindUndeploys();

          GridDhtPartitionTopology top = cacheCtx.topology();

          assert topVer.equals(top.topologyVersion())
              : "Topology version is updated only in this class instances inside single ExchangeWorker thread.";

          top.beforeExchange(this);
        }

        for (GridClientPartitionTopology top : cctx.exchange().clientTopologies()) {
          top.updateTopologyVersion(exchId, this, -1, stopping(top.cacheId()));

          top.beforeExchange(this);
        }
      } catch (IgniteInterruptedCheckedException e) {
        onDone(e);

        throw e;
      } catch (Throwable e) {
        U.error(
            log,
            "Failed to reinitialize local partitions (preloading will be stopped): " + exchId,
            e);

        onDone(e);

        if (e instanceof Error) throw (Error) e;

        return;
      }

      if (F.isEmpty(rmtIds)) {
        onDone(exchId.topologyVersion());

        return;
      }

      ready.set(true);

      initFut.onDone(true);

      if (log.isDebugEnabled()) log.debug("Initialized future: " + this);

      // If this node is not oldest.
      if (!oldestNode.get().id().equals(cctx.localNodeId())) sendPartitions();
      else {
        boolean allReceived = allReceived();

        if (allReceived && replied.compareAndSet(false, true)) {
          if (spreadPartitions()) onDone(exchId.topologyVersion());
        }
      }

      scheduleRecheck();
    } else assert false : "Skipped init future: " + this;
  }