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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.io;
import java.io.*;
/**
* This class can read a given file or directory, recursively, applying a given
* DataEntryReader to all files it comes across.
*
* @author Eric Lafortune
*/
public class DirectoryPump implements DataEntryPump
{
private final File directory;
public DirectoryPump(File directory)
{
this.directory = directory;
}
// Implementations for DataEntryPump.
public void pumpDataEntries(DataEntryReader dataEntryReader)
throws IOException
{
if (!directory.exists())
{
throw new IOException("No such file or directory");
}
readFiles(directory, dataEntryReader);
}
/**
* Reads the given subdirectory recursively, applying the given DataEntryReader
* to all files that are encountered.
*/
private void readFiles(File file, DataEntryReader dataEntryReader)
throws IOException
{
// Pass the file data entry to the reader.
dataEntryReader.read(new FileDataEntry(directory, file));
if (file.isDirectory())
{
// Recurse into the subdirectory.
File[] files = file.listFiles();
for (int index = 0; index < files.length; index++)
{
readFiles(files[index], dataEntryReader);
}
}
}
}
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