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package config;

import org.jetbrains.annotations.Nullable;
import util.Log;

import java.util.Properties;

/**
 * Zugriffspunkt auf die Configs
 *
 * @author Simon Danner, 09.04.2016.
 */
public class Config
{
  private final static String DEFAULT_PATH = "/config.properties";
  private static Properties properties = null;
  private static ClassLoader classLoader = null;

  public static void setClassLoader(Class pClass)
  {
    classLoader = pClass.getClassLoader();
    properties = _load(DEFAULT_PATH);
  }

  @Nullable
  public static String get(String pProperty)
  {
    if (classLoader == null)
      throw new RuntimeException("Config-Classloader must not be null");

    return properties.getProperty(pProperty);
  }

  @Nullable
  public static String get(String pProperty, String pResourcePath)
  {
    return _load(pResourcePath).getProperty(pProperty);
  }

  private static Properties _load(String pPath)
  {
    try
    {
      Properties props = new Properties();
      props.load(classLoader.getResourceAsStream(pPath));
      return props;
    }
    catch (Exception e)
    {
      Log.error("Config-file could not be loaded. Path: " + pPath);
      throw new RuntimeException(e);
    }
  }
}