/*

  * Copyright 2004-2007 the original author or authors.

  *

  * Licensed 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.kuali.maven.wagon;

 import java.io.File;

 import java.io.FileNotFoundException;

 import java.io.FileOutputStream;

 import java.io.IOException;

 /**

  * An extension to the {@link FileOutputStream} that notifies

  * a @{link TransferProgress} object as it is being written to.

  *

  * @author Ben Hale

  * @since 1.1

  */

 class TransferProgressFileOutputStream extends FileOutputStream {

     private TransferProgress progress;

     public TransferProgressFileOutputStream(File file, TransferProgress progress) throws FileNotFoundException {

         super(file);

         this.progress = progress;

     }

     public void write(int b) throws IOException {

         super.write(b);

         progress.notify(new byte[]{(byte) b}, 1);

     }

     public void write(byte b[]) throws IOException {

         super.write(b);

         progress.notify(b, b.length);

     }

     public void write(byte b[], int off, int len) throws IOException {

         super.write(b, off, len);

         if (off == 0) {

             progress.notify(b, len);

         } else {

             byte[] bytes = new byte[len];

             System.arraycopy(b, off, bytes, 0, len);

             progress.notify(bytes, len);

         }

     }

 }