public static boolean validateProxy(HttpHost p) {
if (localAddr == null) {
logger.error("cannot get local IP");
return false;
}
boolean isReachable = false;
Socket socket = null;
try {
socket = new Socket();
socket.bind(new InetSocketAddress(localAddr, 0));
InetSocketAddress endpointSocketAddr =
new InetSocketAddress(p.getAddress().getHostAddress(), p.getPort());
socket.connect(endpointSocketAddr, 3000);
logger.debug(
"SUCCESS - connection established! Local: "
+ localAddr.getHostAddress()
+ " remote: "
+ p);
isReachable = true;
} catch (IOException e) {
logger.warn(
"FAILRE - CAN not connect! Local: " + localAddr.getHostAddress() + " remote: " + p);
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
logger.warn("Error occurred while closing socket of validating proxy", e);
}
}
}
return isReachable;
}
@Override
public String toString() {
String re =
String.format(
"host: %15s >> %5dms >> success: %-3.2f%% >> borrow: %d",
httpHost.getAddress().getHostAddress(),
responseTime,
successNum * 100.0 / borrowNum,
borrowNum);
return re;
}