/*
* This file is part of rockframework.
*
* rockframework 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 3 of the License, or
* (at your option) any later version.
*
* rockframework 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, see <http://www.gnu.org/licenses/>;.
*/
package br.net.woodstock.rockframework.utils;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import br.net.woodstock.rockframework.io.InputOutputStream;
import br.net.woodstock.rockframework.util.Assert;
public abstract class IOUtils {
private static final int BUFFER_SIZE = 8096;
private IOUtils() {
//
}
public static void copy(final InputStream inputStream, final OutputStream outputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
Assert.notNull(outputStream, "outputStream");
int i = 0;
byte[] bytes = new byte[IOUtils.BUFFER_SIZE];
do {
i = inputStream.read(bytes);
if (i != -1) {
outputStream.write(bytes, 0, i);
}
} while (i != -1);
}
public static void copy(final Reader reader, final Writer writer) throws IOException {
Assert.notNull(reader, "reader");
Assert.notNull(writer, "writer");
int i = 0;
char[] chars = new char[IOUtils.BUFFER_SIZE];
do {
i = reader.read(chars);
if (i != -1) {
writer.write(chars, 0, i);
}
} while (i != -1);
}
public static byte[] toByteArray(final InputStream inputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
IOUtils.copy(inputStream, outputStream);
return outputStream.toByteArray();
}
public static Reader toReader(final InputStream inputStream) {
Assert.notNull(inputStream, "inputStream");
return new InputStreamReader(inputStream);
}
public static String toString(final InputStream inputStream) throws IOException {
return IOUtils.toString(inputStream, Charset.defaultCharset());
}
public static String toString(final InputStream inputStream, final Charset charset) throws IOException {
Assert.notNull(inputStream, "inputStream");
Assert.notNull(charset, "charset");
byte[] bytes = IOUtils.toByteArray(inputStream);
String s = new String(bytes, charset);
return s;
}
public static InputStream gzip(final byte[] bytes) throws IOException {
Assert.notNull(bytes, "bytes");
return IOUtils.gzip(new ByteArrayInputStream(bytes));
}
public static InputStream gzip(final InputStream inputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
InputOutputStream inputOutputStream = new InputOutputStream();
GZIPOutputStream gzipOutputStream = new GZIPOutputStream(inputOutputStream);
IOUtils.copy(inputStream, gzipOutputStream);
gzipOutputStream.close();
return inputOutputStream.getInputStream();
}
public static InputStream gunzip(final InputStream inputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
GZIPInputStream gzipInputStream = new GZIPInputStream(inputStream);
InputOutputStream inputOutputStream = new InputOutputStream();
IOUtils.copy(gzipInputStream, inputOutputStream);
return inputOutputStream.getInputStream();
}
}