/*
    * 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.maven.settings.building;
  
  import java.io.File;
  import java.util.Properties;
  
  /**
   * Collects settings that control building of effective settings.
   *
   * @author Benjamin Bentmann
   */
  public class DefaultSettingsBuildingRequest implements SettingsBuildingRequest {
  
      private File globalSettingsFile;
  
      private File userSettingsFile;
  
      private SettingsSource globalSettingsSource;
  
      private SettingsSource userSettingsSource;
  
      private Properties systemProperties;
  
      private Properties userProperties;
  
      @Override
      public File getGlobalSettingsFile() {
          return globalSettingsFile;
      }
  
      @Override
      public DefaultSettingsBuildingRequest setGlobalSettingsFile(File globalSettingsFile) {
          this.globalSettingsFile = globalSettingsFile;
  
          return this;
      }
  
      @Override
      public SettingsSource getGlobalSettingsSource() {
          return globalSettingsSource;
      }
  
      @Override
      public DefaultSettingsBuildingRequest setGlobalSettingsSource(SettingsSource globalSettingsSource) {
          this.globalSettingsSource = globalSettingsSource;
  
          return this;
      }
  
      @Override
      public File getUserSettingsFile() {
          return userSettingsFile;
      }
  
      @Override
      public DefaultSettingsBuildingRequest setUserSettingsFile(File userSettingsFile) {
          this.userSettingsFile = userSettingsFile;
  
          return this;
      }
  
      @Override
      public SettingsSource getUserSettingsSource() {
          return userSettingsSource;
      }
  
      @Override
      public DefaultSettingsBuildingRequest setUserSettingsSource(SettingsSource userSettingsSource) {
          this.userSettingsSource = userSettingsSource;
  
          return this;
      }
  
      @Override
      public Properties getSystemProperties() {
          if (systemProperties == null) {
              systemProperties = new Properties();
          }
  
          return systemProperties;
      }
  
     @Override
     public DefaultSettingsBuildingRequest setSystemProperties(Properties systemProperties) {
         if (systemProperties != null) {
             this.systemProperties = new Properties();
             synchronized (systemProperties) { // avoid concurrent modification if someone else sets/removes an unrelated
                 // system property
                 this.systemProperties.putAll(systemProperties);
             }
         } else {
             this.systemProperties = null;
         }
 
         return this;
     }
 
     @Override
     public Properties getUserProperties() {
         if (userProperties == null) {
             userProperties = new Properties();
         }
 
         return userProperties;
     }
 
     @Override
     public DefaultSettingsBuildingRequest setUserProperties(Properties userProperties) {
         if (userProperties != null) {
             this.userProperties = new Properties();
             this.userProperties.putAll(userProperties);
         } else {
             this.userProperties = null;
         }
 
         return this;
     }
 }