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/*
* Sonar Standalone Runner
* Copyright (C) 2011 SonarSource
* dev@sonar.codehaus.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.runner;
import java.io.*;
/**
* Internal class used only by the Runner as we don't want it to depend on third-party libs.
* This class should not be used by Sonar Runner consumers.
*/
final class IOUtils {
private IOUtils() {
// only static methods
}
/**
* The default buffer size to use.
*/
private static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
/**
* Unconditionally close a <code>Closeable</code>.
*/
static void closeQuietly(Closeable closeable) {
try {
if (closeable != null) {
closeable.close();
}
} catch (IOException ioe) {
}
}
/**
* Get the contents of a <code>Reader</code> as a String.
*/
static String toString(Reader input) throws IOException {
StringWriter sw = new StringWriter();
copyLarge(input, sw);
return sw.toString();
}
/**
* Copy bytes from an <code>InputStream</code> to an <code>OutputStream</code>.
*/
static long copyLarge(InputStream input, OutputStream output) throws IOException {
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
long count = 0;
int n = 0;
while (-1 != (n = input.read(buffer))) {
output.write(buffer, 0, n);
count += n;
}
return count;
}
/**
* Copy chars from a <code>Reader</code> to a <code>Writer</code>.
*/
static long copyLarge(Reader input, Writer output) throws IOException {
char[] buffer = new char[DEFAULT_BUFFER_SIZE];
long count = 0;
int n = 0;
while (-1 != (n = input.read(buffer))) {
output.write(buffer, 0, n);
count += n;
}
return count;
}
/**
* Deletes a file (not a directory).
*/
static boolean deleteFileQuietly(File file) {
if (file == null) {
return false;
}
try {
return file.delete();
} catch (Exception e) {
return false;
}
}
}
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