/*
    * 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.eclipse.aether.transport.classpath;
  
  import java.io.ByteArrayOutputStream;
  import java.nio.Buffer;
  import java.nio.ByteBuffer;
  
  import org.eclipse.aether.spi.connector.transport.TransportListener;
  import org.eclipse.aether.transfer.TransferCancelledException;
  
  class RecordingTransportListener extends TransportListener {
  
      public final ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
  
      public long dataOffset;
  
      public long dataLength;
  
      public int startedCount;
  
      public int progressedCount;
  
      public boolean cancelStart;
  
      public boolean cancelProgress;
  
      @Override
      public void transportStarted(long dataOffset, long dataLength) throws TransferCancelledException {
          startedCount++;
          progressedCount = 0;
          this.dataLength = dataLength;
          this.dataOffset = dataOffset;
          baos.reset();
          if (cancelStart) {
              throw new TransferCancelledException();
          }
      }
  
      @Override
      public void transportProgressed(ByteBuffer data) throws TransferCancelledException {
          progressedCount++;
          baos.write(data.array(), data.arrayOffset() + ((Buffer) data).position(), data.remaining());
          if (cancelProgress) {
              throw new TransferCancelledException();
          }
      }
  }