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 com.datastax.oss.driver.internal.core.retry;
  
  import com.datastax.oss.driver.api.core.ConsistencyLevel;
  import com.datastax.oss.driver.api.core.cql.Statement;
  import com.datastax.oss.driver.api.core.retry.RetryDecision;
  import com.datastax.oss.driver.api.core.retry.RetryVerdict;
  import com.datastax.oss.driver.api.core.session.Request;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  public class ConsistencyDowngradingRetryVerdict implements RetryVerdict {
  
    private final ConsistencyLevel consistencyLevel;
  
    public ConsistencyDowngradingRetryVerdict(@NonNull ConsistencyLevel consistencyLevel) {
      this.consistencyLevel = consistencyLevel;
    }
  
    @NonNull
    @Override
    public RetryDecision getRetryDecision() {
      return RetryDecision.RETRY_SAME;
    }
  
    @NonNull
    @Override
    public <RequestT extends Request> RequestT getRetryRequest(@NonNull RequestT previous) {
      if (previous instanceof Statement) {
        Statement<?> statement = (Statement<?>) previous;
        @SuppressWarnings("unchecked")
        RequestT toRetry = (RequestT) statement.setConsistencyLevel(consistencyLevel);
        return toRetry;
      }
      return previous;
    }
  
    @Override
    public String toString() {
      return getRetryDecision() + " at consistency " + consistencyLevel;
    }
  }
  