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 samples;
  
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  
  import com.aliyun.oss.ClientException;
  import com.aliyun.oss.OSS;
  import com.aliyun.oss.OSSClientBuilder;
  import com.aliyun.oss.OSSException;
  import com.aliyun.oss.model.Callback;
  import com.aliyun.oss.model.Callback.CalbackBodyType;
  import com.aliyun.oss.model.PutObjectRequest;
  import com.aliyun.oss.model.PutObjectResult;
  
  /**
   * Examples about how to use the callback
   *
   */
  public class CallbackSample {
      
      private static String endpoint = "*** Provide OSS endpoint ***";
      private static String accessKeyId = "*** Provide your AccessKeyId ***";
      private static String accessKeySecret = "*** Provide your AccessKeySecret ***";
      private static String bucketName = "*** Provide bucket name ***";
      
      // The callback url，for example: http://oss-demo.aliyuncs.com:23450或http://0.0.0.0:9090
      // The service of that url must support the post method.
      private static final String callbackUrl = "<yourCallbackServerUrl>";
      
  
      public static void main(String[] args) throws IOException {        
  
          OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
          
          try {
              String content = "Hello OSS";
              PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, "key", 
                      new ByteArrayInputStream(content.getBytes())); 
              
              Callback callback = new Callback();
              callback.setCallbackUrl(callbackUrl);
              callback.setCallbackHost("oss-cn-hangzhou.aliyuncs.com");
              callback.setCallbackBody("{\\\"bucket\\\":${bucket},\\\"object\\\":${object},"
                      + "\\\"mimeType\\\":${mimeType},\\\"size\\\":${size},"
                      + "\\\"my_var1\\\":${x:var1},\\\"my_var2\\\":${x:var2}}");
              callback.setCalbackBodyType(CalbackBodyType.JSON);
              callback.addCallbackVar("x:var1", "value1");
              callback.addCallbackVar("x:var2", "value2");
              putObjectRequest.setCallback(callback);
              
              PutObjectResult putObjectResult = ossClient.putObject(putObjectRequest);
              byte[] buffer = new byte[1024];
              putObjectResult.getResponse().getContent().read(buffer);
              putObjectResult.getResponse().getContent().close();
  
          } catch (OSSException oe) {
              System.out.println("Caught an OSSException, which means your request made it to OSS, "
                      + "but was rejected with an error response for some reason.");
              System.out.println("Error Message: " + oe.getErrorMessage());
              System.out.println("Error Code:       " + oe.getErrorCode());
              System.out.println("Request ID:      " + oe.getRequestId());
              System.out.println("Host ID:           " + oe.getHostId());
          } catch (ClientException ce) {
              System.out.println("Caught an ClientException, which means the client encountered "
                      + "a serious internal problem while trying to communicate with OSS, "
                      + "such as not being able to access the network.");
              System.out.println("Error Message: " + ce.getMessage());
          } finally {
              ossClient.shutdown();
          }
      }
  }
  