content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed 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 android.os;
  
  import com.android.layoutlib.bridge.Bridge;
  import com.android.layoutlib.bridge.impl.DelegateManager;
  import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
  
  import java.util.Map;
  
  /**
   * Delegate implementing the native methods of android.os.SystemProperties
   *
   * Through the layoutlib_create tool, the original native methods of SystemProperties have been
   * replaced by calls to methods of the same name in this delegate class.
   *
   * Because it's a stateless class to start with, there's no need to keep a {@link DelegateManager}
   * around to map int to instance of the delegate.
   */
  public class SystemProperties_Delegate {
  
      @LayoutlibDelegate
      /*package*/ static String native_get(String key) {
          return native_get(key, "");
      }
  
      @LayoutlibDelegate
      /*package*/ static String native_get(String key, String def) {
          Map<String, String> properties = Bridge.getPlatformProperties();
          String value = properties.get(key);
          if (value != null) {
              return value;
          }
  
          return def;
      }
      @LayoutlibDelegate
      /*package*/ static int native_get_int(String key, int def) {
          Map<String, String> properties = Bridge.getPlatformProperties();
          String value = properties.get(key);
          if (value != null) {
              return Integer.decode(value);
          }
  
          return def;
      }
  
      @LayoutlibDelegate
      /*package*/ static long native_get_long(String key, long def) {
          Map<String, String> properties = Bridge.getPlatformProperties();
          String value = properties.get(key);
          if (value != null) {
              return Long.decode(value);
          }
  
          return def;
      }
  
      /**
       * Values 'n', 'no', '0', 'false' or 'off' are considered false.
       * Values 'y', 'yes', '1', 'true' or 'on' are considered true.
       */
      @LayoutlibDelegate
      /*package*/ static boolean native_get_boolean(String key, boolean def) {
          Map<String, String> properties = Bridge.getPlatformProperties();
          String value = properties.get(key);
  
          if ("n".equals(value) || "no".equals(value) || "0".equals(value) || "false".equals(value)
                  || "off".equals(value)) {
              return false;
          }
          //noinspection SimplifiableIfStatement
          if ("y".equals(value) || "yes".equals(value) || "1".equals(value) || "true".equals(value)
                  || "on".equals(value)) {
              return true;
          }
  
          return def;
      }
  
      @LayoutlibDelegate
      /*package*/ static void native_set(String key, String def) {
          Map<String, String> properties = Bridge.getPlatformProperties();
          properties.put(key, def);
      }
  
      @LayoutlibDelegate
      /*package*/ static void native_add_change_callback() {
          // pass.
      }
  
      @LayoutlibDelegate
      /*package*/ static void native_report_sysprop_change() {
          // pass.
      }
  }
  