content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package accord.coordinate;
  
  import java.util.Collection;
  import javax.annotation.Nullable;
  
  import accord.api.Agent;
  import accord.api.RoutingKey;
  import accord.local.Node;
  import accord.primitives.Ranges;
  import accord.primitives.Route;
  import accord.primitives.TxnId;
  
  public class FailureAccumulator
  {
      private FailureAccumulator() {}
  
      public static Throwable append(@Nullable Throwable current, @Nullable Throwable next)
      {
          if (current == null) return next;
          if (next == null) return current;
          current.addSuppressed(next);
          return current;
      }
  
      public static Throwable fail(Agent agent, @Nullable Throwable current, TxnId txnId)
      {
          return fail(agent, current, txnId, (RoutingKey) null);
      }
  
      public static Throwable fail(Agent agent, @Nullable Throwable current, TxnId txnId, @Nullable Route<?> route)
      {
          RoutingKey homeKey = route == null ? null : route.homeKey();
          return fail(agent, current, txnId, homeKey, null);
      }
  
      public static Throwable fail(Agent agent, @Nullable Throwable current, TxnId txnId, @Nullable RoutingKey homeKey)
      {
          return fail(agent, current, txnId, homeKey, null);
      }
  
      public static Throwable fail(Agent agent, @Nullable Throwable current, TxnId txnId, @Nullable RoutingKey homeKey, @Nullable Ranges unavailable)
      {
          return fail(agent, current, txnId, homeKey, unavailable, null);
      }
      public static Throwable fail(Agent agent, @Nullable Throwable current, TxnId txnId, @Nullable RoutingKey homeKey, @Nullable Ranges unavailable, @Nullable Collection<Node.Id> failed)
      {
          if (current == null && unavailable == null && failed == null)
              return Timeout.timeout(agent, txnId, homeKey);
          if (current == null)
              return Exhausted.exhausted(agent, txnId, homeKey, unavailable, failed);
          return current;
      }
  }
  