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.aliyun.oss.event;
  
  public class ProgressEvent {
      private final long bytes;
      private final ProgressEventType eventType;
  
      public ProgressEvent(ProgressEventType eventType) {
          this(eventType, 0);
      }
  
      public ProgressEvent(ProgressEventType eventType, long bytes) {
          if (eventType == null) {
              throw new IllegalArgumentException("eventType must not be null.");
          }
          if (bytes < 0) {
              throw new IllegalArgumentException("bytes transferred must be non-negative");
          }
          this.eventType = eventType;
          this.bytes = bytes;
      }
  
      public long getBytes() {
          return bytes;
      }
  
      public ProgressEventType getEventType() {
          return eventType;
      }
  
      @Override
      public String toString() {
          return eventType + ", bytes: " + bytes;
      }
  }
  