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 com.alibaba.cloudapp.seata.demo;
  
  import io.seata.saga.engine.AsyncCallback;
  import io.seata.saga.proctrl.ProcessContext;
  import io.seata.saga.statelang.domain.StateMachineInstance;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class DemoAsyncCallback implements AsyncCallback {
      
      public static final Logger logger = LoggerFactory.getLogger(DemoAsyncCallback.class);
      
      public static final Object object = new Object();
      
      @Override
      public void onFinished(ProcessContext context,
                             StateMachineInstance stateMachineInstance) {
          synchronized(object) {
              object.notify();
          }
      }
      
      @Override
      public void onError(ProcessContext context,
                          StateMachineInstance stateMachineInstance,
                          Exception exp) {
          logger.error("stateMachineInstance:[{}] execute error",
                  stateMachineInstance.getId(), exp);
          synchronized(object) {
              object.notifyAll();
          }
      }
      
      public void waitingForFinish(StateMachineInstance inst) {
          synchronized (object) {
              try {
                  object.wait();
              } catch (InterruptedException e) {
                  logger.error("waiting stateMachineInstance:[{}] finish error",
                          inst.getId(), e);
              }
          }
      }
      
  }
  