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.ui.config;
  
  import android.text.TextUtils;
  
  import com.alibaba.fastjson.JSONArray;
  import com.alibaba.fastjson.JSONObject;
  import org.apache.weex.WXEnvironment;
  import org.apache.weex.WXSDKInstance;
  import org.apache.weex.WXSDKManager;
  import org.apache.weex.annotation.JSMethod;
  import org.apache.weex.bridge.Invoker;
  import org.apache.weex.bridge.MethodInvoker;
  import org.apache.weex.bridge.ModuleFactory;
  import org.apache.weex.common.WXModule;
  import org.apache.weex.common.WXModuleAnno;
  import org.apache.weex.utils.WXLogUtils;
  
  import java.lang.annotation.Annotation;
  import java.lang.reflect.Method;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Created by furture on 2018/2/7.
   */
  
  public class ConfigModuleFactory<T extends WXModule> implements ModuleFactory<T> {
  
      public static final String TAG = AutoScanConfigRegister.TAG;
  
      private String mName;
      private String mClassName;
      private String[] methods;
      private Class<T> mClazz;
      private Map<String, Invoker> mMethodMap;
  
      private ClassLoader mClassLoader;
  
      public ConfigModuleFactory(String mName, String mClassName, String[] methods) {
          this.mName = mName;
          this.mClassName = mClassName;
          this.methods = methods;
      }
  
      @Override
      public String[] getMethods() {
          if(methods == null){
              return new String[0];
          }
          return methods;
      }
  
      @Override
      public Invoker getMethodInvoker(String name) {
          if (mMethodMap == null) {
              generateMethodMap();
          }
          return mMethodMap.get(name);
      }
  
      @Override
      public T buildInstance() throws IllegalAccessException, InstantiationException {
          if(mClazz == null){
              mClazz = (Class<T>) WXSDKManager
                  .getInstance().getClassLoaderAdapter().getModuleClass(mName, mClassName, WXEnvironment
                      .getApplication().getApplicationContext());
          }
          return mClazz.newInstance();
      }
  
      public T buildInstance(WXSDKInstance instance) throws IllegalAccessException, InstantiationException {
          if(instance == null){
              return buildInstance();
          }
          if(mClazz == null || mClassLoader != instance.getContext().getClassLoader()){
              mClazz = (Class<T>) WXSDKManager.getInstance().getClassLoaderAdapter().getModuleClass(mName, mClassName, instance.getContext());
              mClassLoader = instance.getContext().getClassLoader();
          }
          return mClazz.newInstance();
      }
  
  
      private void generateMethodMap() {
          if(WXEnvironment.isApkDebugable()) {
               WXLogUtils.d(TAG, "extractMethodNames:" + mClazz.getSimpleName());
          }
          HashMap<String, Invoker> methodMap = new HashMap<>();
          try {
              for (Method method : mClazz.getMethods()) {
                  // iterates all the annotations available in the method
                  for (Annotation anno : method.getDeclaredAnnotations()) {
                      if (anno != null) {
                          if(anno instanceof JSMethod) {
                              JSMethod methodAnnotation = (JSMethod) anno;
                              String name = JSMethod.NOT_SET.equals(methodAnnotation.alias())? method.getName():methodAnnotation.alias();
                              methodMap.put(name, new MethodInvoker(method, methodAnnotation.uiThread()));
                              break;
                          }else if(anno instanceof WXModuleAnno) {
                              WXModuleAnno methodAnnotation = (WXModuleAnno)anno;
                              methodMap.put(method.getName(), new MethodInvoker(method,methodAnnotation.runOnUIThread()));
                              break;
                          }
                      }
                  }
              }
          } catch (Throwable e) {
              WXLogUtils.e("[WXModuleManager] extractMethodNames:", e);
          }
          mMethodMap = methodMap;
      }
  
  
      public static ConfigModuleFactory fromConfig(JSONObject config){
          try{
              if(config == null){
                  return null;
              }
  
              String name = config.getString("name");
              String className = config.getString("className");
              JSONArray methods = config.getJSONArray("methods");
              if(TextUtils.isEmpty(name) || TextUtils.isEmpty(className)){
                  return null;
              }
              String[]  arrays = new String[methods.size()];
              if(WXEnvironment.isApkDebugable()){
                  WXLogUtils.d(TAG, " resolve module " + name + " className " + className +  " methods " + methods);
              }
              return new ConfigModuleFactory(name, className, methods.toArray(arrays));
          }catch (Exception e){
               WXLogUtils.e(TAG, e);
               return null;
          }
      }
  
      public String getName() {
          return mName;
      }
  }
  