/**
* Copyright (c) 2015, Lucee Assosication Switzerland. All rights reserved.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*
*/
package lucee.commons.net;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;
import java.util.HashMap;
import java.util.Map;
import lucee.commons.io.IOUtil;
public class PortChecker {
public static boolean isActive(String host, int port) {
Socket s = null;
try {
s = new Socket();
s.setReuseAddress(true);
SocketAddress sa = new InetSocketAddress(host, port);
s.connect(sa, 3000);
return true;
}
catch (IOException e) {}
finally {
IOUtil.closeEL(s);
}
return false;
}
public static Map<Integer,Boolean> portsTaken(int portFrom, int portTo) {
Map<Integer,Boolean> result=new HashMap<Integer, Boolean>();
for(int i=portFrom;i<=portTo;i++){
result.put(i, portTaken(i));
}
return result;
}
public static boolean portTaken(int port) {
ServerSocket socket = null;
try {
socket = new ServerSocket(port);
}
catch (IOException e) {
//e.printStackTrace();
return true;
}
finally {
IOUtil.closeEL(socket);
}
return false;
}
}