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/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 1997-2006.
*
* Licensed under the Aduna BSD-style license.
*/
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
public class Main {
/**
* Writes all characters from a <tt>Reader</tt> to a file using the default
* character encoding.
*
* @param reader The <tt>Reader</tt> containing the data to write to the
* file.
* @param file The file to write the data to.
* @return The total number of characters written.
* @throws IOException If an I/O error occured while trying to write the
* data to the file.
* @see java.io.FileWriter
*/
public static final long writeToFile(Reader reader, File file)
throws IOException
{
FileWriter writer = new FileWriter(file);
try {
return transfer(reader, writer);
}
finally {
writer.close();
}
}
/**
* Transfers all characters that can be read from <tt>in</tt> to
* <tt>out</tt>.
*
* @param in The Reader to read characters from.
* @param out The Writer to write characters to.
* @return The total number of characters transfered.
*/
public static final long transfer(Reader in, Writer out)
throws IOException
{
long totalChars = 0;
int charsInBuf = 0;
char[] buf = new char[4096];
while ((charsInBuf = in.read(buf)) != -1) {
out.write(buf, 0, charsInBuf);
totalChars += charsInBuf;
}
return totalChars;
}
}
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