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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;
import java.io.*;
import java.net.URL;
/**
* A <code>WordReader</code> that returns words from a file or a URL.
*
* @author Eric Lafortune
*/
public class FileWordReader extends WordReader
{
private final String name;
private LineNumberReader reader;
/**
* Creates a new FileWordReader for the given file.
*/
public FileWordReader(File file) throws IOException
{
super(file.getParentFile());
this.name = file.getPath();
this.reader = new LineNumberReader(
new BufferedReader(
new FileReader(file)));
}
/**
* Creates a new FileWordReader for the given URL.
*/
public FileWordReader(URL url) throws IOException
{
super(null);
this.name = url.toString();
this.reader = new LineNumberReader(
new BufferedReader(
new InputStreamReader(url.openStream())));
}
// Implementations for WordReader.
protected String nextLine() throws IOException
{
return reader.readLine();
}
protected String lineLocationDescription()
{
return "line " + reader.getLineNumber() + " of file '" + name + "'";
}
public void close() throws IOException
{
super.close();
if (reader != null)
{
reader.close();
}
}
}
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