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 org.apache.cassandra.streaming;
  
  import java.io.Serializable;
  import java.util.List;
  import java.util.Set;
  
  import com.google.common.collect.Iterables;
  import com.google.common.collect.Lists;
  
  import org.apache.cassandra.utils.TimeUUID;
  
  /**
   * Current snapshot of streaming progress.
   */
  public class StreamState implements Serializable
  {
      public final TimeUUID planId;
      public final StreamOperation streamOperation;
      public final Set<SessionInfo> sessions;
  
      public StreamState(TimeUUID planId, StreamOperation streamOperation, Set<SessionInfo> sessions)
      {
          this.planId = planId;
          this.sessions = sessions;
          this.streamOperation = streamOperation;
      }
  
      public boolean hasFailedSession()
      {
          return Iterables.any(sessions, SessionInfo::isFailed);
      }
  
      public boolean hasAbortedSession()
      {
          return Iterables.any(sessions, SessionInfo::isAborted);
      }
  
      public List<SessionSummary> createSummaries()
      {
          return Lists.newArrayList(Iterables.transform(sessions, SessionInfo::createSummary));
      }
  
      public Set<SessionInfo> sessions() {
          return sessions;
      }
  }
  