/*
* Copyright 2006-2015 The MZmine 3 Development Team
*
* This file is part of MZmine 3.
*
* MZmine 3 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.
*
* MZmine 3 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 MZmine 3; if not,
* write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
package io.github.mzmine.util;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
/**
* Internet related utilities
*/
public class InetUtils {
/**
* Opens a connection to the given URL (typically HTTP) and retrieves the data from server. Data
* is assumed to be in UTF-8 encoding.
*/
public static String retrieveData(URL url) throws IOException {
URLConnection connection = url.openConnection();
connection.setRequestProperty("User-agent", "MZmine 3");
InputStream is = connection.getInputStream();
if (is == null) {
throw new IOException("Could not establish a connection to " + url);
}
StringBuffer buffer = new StringBuffer();
try {
InputStreamReader reader = new InputStreamReader(is, "UTF-8");
char[] cb = new char[1024];
int amtRead = reader.read(cb);
while (amtRead > 0) {
buffer.append(cb, 0, amtRead);
amtRead = reader.read(cb);
}
} catch (UnsupportedEncodingException e) {
// This should never happen, because UTF-8 is supported
e.printStackTrace();
}
is.close();
return buffer.toString();
}
}