/*
    * 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.surefire.booter;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Map;
  import java.util.Properties;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.apache.maven.surefire.api.util.TempFileManager;
  
  /**
   * @author Kristian Rosenvold
   */
  public class SystemPropertyManager {
  
      /**
       * Loads the properties, closes the stream
       *
       * @param inStream The stream to read from, will be closed
       * @return The properties
       * @throws java.io.IOException If something bad happens
       */
      public static PropertiesWrapper loadProperties(InputStream inStream) throws IOException {
          try (InputStream stream = inStream) {
              Properties p = new Properties();
              p.load(stream);
              Map<String, String> map = new ConcurrentHashMap<>(p.size());
              for (String key : p.stringPropertyNames()) {
                  map.put(key, p.getProperty(key));
              }
              return new PropertiesWrapper(map);
          }
      }
  
      private static PropertiesWrapper loadProperties(File file) throws IOException {
          return loadProperties(new FileInputStream(file));
      }
  
      public static void setSystemProperties(File file) throws IOException {
          PropertiesWrapper p = loadProperties(file);
          p.setAsSystemProperties();
      }
  
      public static File writePropertiesFile(
              Properties properties, File tempDirectory, String name, boolean keepForkFiles) throws IOException {
          File file = TempFileManager.instance(tempDirectory).createTempFile(name, "tmp");
          if (!keepForkFiles) {
              file.deleteOnExit();
          }
  
          writePropertiesFile(file, name, properties);
  
          return file;
      }
  
      public static void writePropertiesFile(File file, String name, Properties properties) throws IOException {
          try (FileOutputStream out = new FileOutputStream(file)) {
              properties.store(out, name);
          }
      }
  }