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package org.apache.maven.shared.io.location; |
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|
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.FileChannel; |
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|
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|
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public class FileLocation |
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implements Location |
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{ |
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|
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private File file; |
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private FileChannel channel; |
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private final String specification; |
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|
| 18 | 5 | public FileLocation( File file, String specification ) |
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{ |
| 20 | 5 | this.file = file; |
| 21 | 5 | this.specification = specification; |
| 22 | 5 | } |
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|
| 24 | 16 | protected FileLocation( String specification ) |
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{ |
| 26 | 16 | this.specification = specification; |
| 27 | 16 | } |
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|
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public void close() |
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{ |
| 31 | 1 | if ( channel != null && channel.isOpen() ) |
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{ |
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try |
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{ |
| 35 | 1 | channel.close(); |
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} |
| 37 | 0 | catch ( IOException e ) |
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{ |
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|
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} |
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} |
| 42 | 1 | } |
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|
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public File getFile() |
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throws IOException |
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{ |
| 47 | 12 | initFile(); |
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|
| 49 | 12 | return unsafeGetFile(); |
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} |
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|
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protected File unsafeGetFile() |
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{ |
| 54 | 16 | return file; |
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} |
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|
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protected void initFile() |
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throws IOException |
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{ |
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|
| 61 | 16 | if ( file == null ) |
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{ |
| 63 | 2 | file = new File( specification ); |
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} |
| 65 | 16 | } |
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|
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protected void setFile( File file ) |
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{ |
| 69 | 13 | if ( channel != null ) |
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{ |
| 71 | 1 | throw new IllegalStateException( "Location is already open; cannot setFile(..)." ); |
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} |
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|
| 74 | 12 | this.file = file; |
| 75 | 12 | } |
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|
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public String getSpecification() |
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{ |
| 79 | 2 | return specification; |
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} |
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|
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public void open() |
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throws IOException |
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{ |
| 85 | 8 | initFile(); |
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|
| 87 | 8 | channel = new FileInputStream( file ).getChannel(); |
| 88 | 8 | } |
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|
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public int read( ByteBuffer buffer ) |
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throws IOException |
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{ |
| 93 | 1 | return channel.read( buffer ); |
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} |
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|
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public int read( byte[] buffer ) |
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throws IOException |
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{ |
| 99 | 5 | return channel.read( ByteBuffer.wrap( buffer ) ); |
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} |
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|
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} |