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.config.map;
  
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.config.DriverOption;
  import com.datastax.oss.driver.shaded.guava.common.base.Preconditions;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSortedSet;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import java.time.Duration;
  import java.util.AbstractMap;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  import java.util.SortedSet;
  
  /** @see MapBasedDriverConfigLoader */
  public class MapBasedDriverExecutionProfile implements DriverExecutionProfile {
  
    private final String profileName;
    // The backing map for the current profile
    private final Map<DriverOption, Object> profile;
    // The backing map for the default profile (if the current one is not the default)
    private final Map<DriverOption, Object> defaultProfile;
  
    public MapBasedDriverExecutionProfile(
        Map<String, Map<DriverOption, Object>> optionsMap, String profileName) {
      this(
          profileName,
          optionsMap.get(profileName),
          profileName.equals(DriverExecutionProfile.DEFAULT_NAME)
              ? Collections.emptyMap()
              : optionsMap.get(DriverExecutionProfile.DEFAULT_NAME));
      Preconditions.checkArgument(
          optionsMap.containsKey(profileName),
          "Unknown profile '%s'. Check your configuration.",
          profileName);
    }
  
    public MapBasedDriverExecutionProfile(
        String profileName,
        Map<DriverOption, Object> profile,
        Map<DriverOption, Object> defaultProfile) {
      this.profileName = profileName;
      this.profile = profile;
      this.defaultProfile = defaultProfile;
    }
  
    @NonNull
    @Override
    public String getName() {
      return profileName;
    }
  
    @Override
    public boolean isDefined(@NonNull DriverOption option) {
      return profile.containsKey(option) || defaultProfile.containsKey(option);
    }
  
    // Driver options don't encode the type, everything relies on the user putting the right types in
    // the backing map, so no point in trying to type-check.
    @SuppressWarnings({"unchecked", "TypeParameterUnusedInFormals"})
    @NonNull
    private <T> T get(@NonNull DriverOption option) {
      Object value = profile.getOrDefault(option, defaultProfile.get(option));
      if (value == null) {
        throw new IllegalArgumentException("Missing configuration option " + option.getPath());
      }
      return (T) value;
    }
  
    @Override
    public boolean getBoolean(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Boolean> getBooleanList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @Override
    public int getInt(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Integer> getIntList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @Override
    public long getLong(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Long> getLongList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @Override
    public double getDouble(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Double> getDoubleList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public String getString(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<String> getStringList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public Map<String, String> getStringMap(@NonNull DriverOption option) {
      return get(option);
    }
  
    @Override
    public long getBytes(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Long> getBytesList(DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public Duration getDuration(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public List<Duration> getDurationList(@NonNull DriverOption option) {
      return get(option);
    }
  
    @NonNull
    @Override
    public SortedSet<Map.Entry<String, Object>> entrySet() {
      ImmutableSortedSet.Builder<Map.Entry<String, Object>> builder =
          ImmutableSortedSet.orderedBy(Map.Entry.comparingByKey());
      for (Map<DriverOption, Object> backingMap :
          // builder.add() ignores duplicates, so process higher precedence backing maps first
          ImmutableList.of(profile, defaultProfile)) {
        for (Map.Entry<DriverOption, Object> entry : backingMap.entrySet()) {
          builder.add(new AbstractMap.SimpleEntry<>(entry.getKey().getPath(), entry.getValue()));
        }
      }
      return builder.build();
    }
  }
  