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 android.text.TextUtils;
  
  import org.apache.weex.WXSDKEngine;
  import org.apache.weex.bridge.JSCallback;
  import org.apache.weex.annotation.JSMethod;
  
  import java.util.Map;
  
  public class WXStorageModule extends WXSDKEngine.DestroyableModule implements IWXStorage {
  
      IWXStorageAdapter mStorageAdapter;
  
      private IWXStorageAdapter ability() {
          if (mStorageAdapter != null) {
              return mStorageAdapter;
          }
          mStorageAdapter = WXSDKEngine.getIWXStorageAdapter();
          return mStorageAdapter;
      }
  
  
      @Override
      @JSMethod(uiThread = false)
      public void setItem(String key, String value, @Nullable final JSCallback callback) {
          if (TextUtils.isEmpty(key) || value == null) {
              StorageResultHandler.handleInvalidParam(callback);
              return;
          }
  
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.setItem(key, value, new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
  
  
      }
  
      @Override
      @JSMethod(uiThread = false)
      public void getItem(String key, @Nullable final JSCallback callback) {
          if (TextUtils.isEmpty(key)) {
              StorageResultHandler.handleInvalidParam(callback);
              return;
          }
  
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.getItem(key, new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
      }
  
      @Override
      @JSMethod(uiThread = false)
      public void removeItem(String key, @Nullable final JSCallback callback) {
          if (TextUtils.isEmpty(key)) {
              StorageResultHandler.handleInvalidParam(callback);
              return;
          }
  
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.removeItem(key, new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
      }
  
      @Override
      @JSMethod(uiThread = false)
      public void length(@Nullable final JSCallback callback) {
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.length(new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
      }
  
      @Override
      @JSMethod(uiThread = false)
      public void getAllKeys(@Nullable final JSCallback callback) {
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.getAllKeys(new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
      }
  
      @Override
      @JSMethod(uiThread = false)
      public void setItemPersistent(String key, String value, @Nullable final JSCallback callback) {
          if (TextUtils.isEmpty(key) || value == null) {
              StorageResultHandler.handleInvalidParam(callback);
              return;
          }
  
          IWXStorageAdapter adapter = ability();
          if (adapter == null) {
              StorageResultHandler.handleNoHandlerError(callback);
              return;
          }
          adapter.setItemPersistent(key, value, new IWXStorageAdapter.OnResultReceivedListener() {
              @Override
              public void onReceived(Map<String, Object> data) {
                  if(callback != null){
                      callback.invoke(data);
                  }
              }
          });
      }
  
      @Override
      public void destroy() {
          IWXStorageAdapter adapter = ability();
          if (adapter != null) {
              adapter.close();
          }
      }
  }
  