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.example.guava.internal;
  
  import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
  import com.datastax.oss.driver.api.core.cql.PrepareRequest;
  import com.datastax.oss.driver.api.core.cql.Statement;
  import com.datastax.oss.driver.api.core.session.ProgrammaticArguments;
  import com.datastax.oss.driver.example.guava.api.GuavaSession;
  import com.datastax.oss.driver.internal.core.context.DefaultDriverContext;
  import com.datastax.oss.driver.internal.core.cql.CqlPrepareAsyncProcessor;
  import com.datastax.oss.driver.internal.core.cql.CqlPrepareSyncProcessor;
  import com.datastax.oss.driver.internal.core.cql.CqlRequestAsyncProcessor;
  import com.datastax.oss.driver.internal.core.cql.CqlRequestSyncProcessor;
  import com.datastax.oss.driver.internal.core.session.RequestProcessorRegistry;
  import java.util.Optional;
  
  /**
   * A Custom {@link DefaultDriverContext} that overrides {@link #getRequestProcessorRegistry()} to
   * return a {@link RequestProcessorRegistry} that includes processors for returning guava futures.
   */
  public class GuavaDriverContext extends DefaultDriverContext {
  
    public GuavaDriverContext(
        DriverConfigLoader configLoader, ProgrammaticArguments programmaticArguments) {
      super(configLoader, programmaticArguments);
    }
  
    @Override
    public RequestProcessorRegistry buildRequestProcessorRegistry() {
      // Register the typical request processors, except instead of the normal async processors,
      // use GuavaRequestAsyncProcessor to return ListenableFutures in async methods.
  
      CqlRequestAsyncProcessor cqlRequestAsyncProcessor = new CqlRequestAsyncProcessor();
      CqlPrepareAsyncProcessor cqlPrepareAsyncProcessor =
          new CqlPrepareAsyncProcessor(Optional.of(this));
      CqlRequestSyncProcessor cqlRequestSyncProcessor =
          new CqlRequestSyncProcessor(cqlRequestAsyncProcessor);
  
      return new RequestProcessorRegistry(
          getSessionName(),
          cqlRequestSyncProcessor,
          new CqlPrepareSyncProcessor(cqlPrepareAsyncProcessor),
          new GuavaRequestAsyncProcessor<>(
              cqlRequestAsyncProcessor, Statement.class, GuavaSession.ASYNC),
          new GuavaRequestAsyncProcessor<>(
              cqlPrepareAsyncProcessor, PrepareRequest.class, GuavaSession.ASYNC_PREPARED),
          // Register KeyRequestProcessor for handling KeyRequest and returning Integer.
          new KeyRequestProcessor(cqlRequestAsyncProcessor));
    }
  }
  