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 org.apache.weex.appfram.storage;
  
  import android.support.annotation.Nullable;
  
  import org.apache.weex.bridge.JSCallback;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  public class StorageResultHandler {
  
      private StorageResultHandler() {
      }
  
      private static final String RESULT = "result";
      private static final String DATA = "data";
  
  
      private static final String UNDEFINED = "undefined";
      private static final String RESULT_FAILED_NO_HANDLER = "no_handler";
      private static final String RESULT_FAILED_INVALID_PARAM = "invalid_param";
  
  
      private static final String RESULT_OK = "success";
      private static final String RESULT_FAILED = "failed";
  
  
      public static Map<String, Object> getItemResult(String result) {
          Map<String, Object> map = new HashMap<>(4);
          map.put(RESULT, result != null ? RESULT_OK : RESULT_FAILED);
          map.put(DATA, result != null ? result : UNDEFINED);
          return map;
      }
  
      public static Map<String, Object> setItemResult(boolean result) {
          Map<String, Object> map = new HashMap<>(4);
          map.put(RESULT, result ? RESULT_OK : RESULT_FAILED);
          map.put(DATA, UNDEFINED);
          return map;
      }
  
  
      public static Map<String, Object> removeItemResult(boolean result) {
          Map<String, Object> map = new HashMap<>(4);
          map.put(RESULT, result ? RESULT_OK : RESULT_FAILED);
          map.put(DATA, UNDEFINED);
          return map;
      }
  
      public static Map<String, Object> getLengthResult(long result) {
          Map<String, Object> map = new HashMap<>(4);
          map.put(RESULT, RESULT_OK);
          map.put(DATA, result);
          return map;
      }
  
      public static Map<String, Object> getAllkeysResult(List<String> result) {
          if (result == null) {
              result = new ArrayList<>(1);
          }
          Map<String, Object> map = new HashMap<>(4);
          map.put(RESULT, RESULT_OK);
          map.put(DATA, result);
          return map;
      }
  
  
      private static void handleResult(@Nullable JSCallback callback, String result, Object data) {
          if (callback == null) {
              return;
          }
          Map<String, Object> retVal = new HashMap<>(4);
          retVal.put(RESULT, result);
          retVal.put(DATA, data);
          callback.invoke(retVal);
      }
  
      public static void handleNoHandlerError(@Nullable JSCallback callback) {
          handleResult(callback, RESULT_FAILED, RESULT_FAILED_NO_HANDLER);
      }
  
      public static void handleInvalidParam(@Nullable JSCallback callback) {
          handleResult(callback, RESULT_FAILED, RESULT_FAILED_INVALID_PARAM);
      }
  
  
  }
  