Coverage Report - org.codehaus.plexus.archiver.bzip2.BZip2UnArchiver
 
Classes in this File Line Coverage Branch Coverage Complexity
BZip2UnArchiver
25%
3/12
0%
0/2
2
 
 1  
 /**
 2  
  *
 3  
  * Copyright 2004 The Apache Software Foundation
 4  
  *
 5  
  * Licensed under the Apache License, Version 2.0 (the "License");
 6  
  * you may not use this file except in compliance with the License.
 7  
  * You may obtain a copy of the License at
 8  
  *
 9  
  * http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.codehaus.plexus.archiver.bzip2;
 18  
 
 19  
 import java.io.File;
 20  
 import java.io.IOException;
 21  
 import java.io.InputStream;
 22  
 import javax.annotation.Nonnull;
 23  
 import org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream;
 24  
 import org.codehaus.plexus.archiver.AbstractUnArchiver;
 25  
 import org.codehaus.plexus.archiver.ArchiverException;
 26  
 import static org.codehaus.plexus.archiver.util.Streams.bufferedInputStream;
 27  
 import static org.codehaus.plexus.archiver.util.Streams.bufferedOutputStream;
 28  
 import static org.codehaus.plexus.archiver.util.Streams.copyFully;
 29  
 import static org.codehaus.plexus.archiver.util.Streams.fileInputStream;
 30  
 import static org.codehaus.plexus.archiver.util.Streams.fileOutputStream;
 31  
 
 32  
 /**
 33  
  * @author <a href="mailto:evenisse@codehaus.org">Emmanuel Venisse</a>
 34  
  */
 35  
 public class BZip2UnArchiver
 36  
     extends AbstractUnArchiver
 37  
 {
 38  
 
 39  
     private final static String OPERATION_BZIP2 = "bzip2";
 40  
 
 41  
     public BZip2UnArchiver()
 42  1
     {
 43  1
     }
 44  
 
 45  
     public BZip2UnArchiver( File sourceFile )
 46  
     {
 47  0
         super( sourceFile );
 48  0
     }
 49  
 
 50  
     @Override
 51  
     protected void execute()
 52  
         throws ArchiverException
 53  
     {
 54  0
         if ( getSourceFile().lastModified() > getDestFile().lastModified() )
 55  
         {
 56  0
             getLogger().info(
 57  
                 "Expanding " + getSourceFile().getAbsolutePath() + " to " + getDestFile().getAbsolutePath() );
 58  
 
 59  0
             copyFully( getBZip2InputStream( bufferedInputStream( fileInputStream( getSourceFile(), OPERATION_BZIP2 ) ) ),
 60  
                        bufferedOutputStream( fileOutputStream( getDestFile(), OPERATION_BZIP2 ) ), OPERATION_BZIP2 );
 61  
         }
 62  0
     }
 63  
 
 64  
     public static @Nonnull
 65  
     BZip2CompressorInputStream getBZip2InputStream( InputStream bis )
 66  
         throws ArchiverException
 67  
     {
 68  
         try
 69  
         {
 70  
             // Note that bis must be buffered for performance. Does not need buffering around BZip2CompressorInputStream
 71  5
             return new BZip2CompressorInputStream( bis );
 72  
         }
 73  0
         catch ( IOException e )
 74  
         {
 75  0
             throw new ArchiverException( "Trouble creating BZIP2 compressor, invalid file ?", e );
 76  
         }
 77  
     }
 78  
 
 79  
     @Override
 80  
     protected void execute( String path, File outputDirectory )
 81  
     {
 82  0
         throw new UnsupportedOperationException( "Targeted extraction not supported in BZIP2 format." );
 83  
     }
 84  
 
 85  
 }