| /******************************************************************************* |
| * Copyright (c) 2010, 2014 Sonatype, Inc. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Sonatype, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.aether.internal.impl; |
| |
| import java.io.Closeable; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| |
| import javax.inject.Named; |
| |
| import org.eclipse.aether.spi.io.FileProcessor; |
| |
| /** |
| * A utility class helping with file-based operations. |
| */ |
| @Named |
| public class DefaultFileProcessor |
| implements FileProcessor |
| { |
| |
| private static void close( Closeable closeable ) |
| { |
| if ( closeable != null ) |
| { |
| try |
| { |
| closeable.close(); |
| } |
| catch ( IOException e ) |
| { |
| // too bad but who cares |
| } |
| } |
| } |
| |
| /** |
| * Thread-safe variant of {@link File#mkdirs()}. Creates the directory named by the given abstract pathname, |
| * including any necessary but nonexistent parent directories. Note that if this operation fails it may have |
| * succeeded in creating some of the necessary parent directories. |
| * |
| * @param directory The directory to create, may be {@code null}. |
| * @return {@code true} if and only if the directory was created, along with all necessary parent directories; |
| * {@code false} otherwise |
| */ |
| public boolean mkdirs( File directory ) |
| { |
| if ( directory == null ) |
| { |
| return false; |
| } |
| |
| if ( directory.exists() ) |
| { |
| return false; |
| } |
| if ( directory.mkdir() ) |
| { |
| return true; |
| } |
| |
| File canonDir; |
| try |
| { |
| canonDir = directory.getCanonicalFile(); |
| } |
| catch ( IOException e ) |
| { |
| return false; |
| } |
| |
| File parentDir = canonDir.getParentFile(); |
| return ( parentDir != null && ( mkdirs( parentDir ) || parentDir.exists() ) && canonDir.mkdir() ); |
| } |
| |
| public void write( File target, String data ) |
| throws IOException |
| { |
| mkdirs( target.getAbsoluteFile().getParentFile() ); |
| |
| OutputStream fos = null; |
| try |
| { |
| fos = new FileOutputStream( target ); |
| |
| if ( data != null ) |
| { |
| fos.write( data.getBytes( "UTF-8" ) ); |
| } |
| |
| // allow output to report any flush/close errors |
| fos.close(); |
| } |
| finally |
| { |
| close( fos ); |
| } |
| } |
| |
| public void write( File target, InputStream source ) |
| throws IOException |
| { |
| mkdirs( target.getAbsoluteFile().getParentFile() ); |
| |
| OutputStream fos = null; |
| try |
| { |
| fos = new FileOutputStream( target ); |
| |
| copy( fos, source, null ); |
| |
| // allow output to report any flush/close errors |
| fos.close(); |
| } |
| finally |
| { |
| close( fos ); |
| } |
| } |
| |
| public void copy( File source, File target ) |
| throws IOException |
| { |
| copy( source, target, null ); |
| } |
| |
| public long copy( File source, File target, ProgressListener listener ) |
| throws IOException |
| { |
| long total = 0; |
| |
| InputStream fis = null; |
| OutputStream fos = null; |
| try |
| { |
| fis = new FileInputStream( source ); |
| |
| mkdirs( target.getAbsoluteFile().getParentFile() ); |
| |
| fos = new FileOutputStream( target ); |
| |
| total = copy( fos, fis, listener ); |
| |
| // allow output to report any flush/close errors |
| fos.close(); |
| } |
| finally |
| { |
| close( fis ); |
| close( fos ); |
| } |
| |
| return total; |
| } |
| |
| private long copy( OutputStream os, InputStream is, ProgressListener listener ) |
| throws IOException |
| { |
| long total = 0; |
| |
| ByteBuffer buffer = ByteBuffer.allocate( 1024 * 32 ); |
| byte[] array = buffer.array(); |
| |
| while ( true ) |
| { |
| int bytes = is.read( array ); |
| if ( bytes < 0 ) |
| { |
| break; |
| } |
| |
| os.write( array, 0, bytes ); |
| |
| total += bytes; |
| |
| if ( listener != null && bytes > 0 ) |
| { |
| try |
| { |
| buffer.rewind(); |
| buffer.limit( bytes ); |
| listener.progressed( buffer ); |
| } |
| catch ( Exception e ) |
| { |
| // too bad |
| } |
| } |
| } |
| |
| return total; |
| } |
| |
| public void move( File source, File target ) |
| throws IOException |
| { |
| if ( !source.renameTo( target ) ) |
| { |
| copy( source, target ); |
| |
| target.setLastModified( source.lastModified() ); |
| |
| source.delete(); |
| } |
| } |
| |
| } |