package com.navercorp.pinpoint.tools.network;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Arrays;
/**
* @author Taejin Koo
*/
public class TCPChecker extends AbstractNetworkChecker {
public TCPChecker(String testName, String hostName, int port) throws UnknownHostException {
this(testName, new InetSocketAddress(hostName, port));
}
public TCPChecker(String testName, InetSocketAddress hostAddress) throws UnknownHostException {
super(testName, hostAddress);
}
@Override
protected boolean check(InetSocketAddress address) throws IOException {
Socket socket = null;
try {
socket = createSocket(address);
return socket.isConnected();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (socket != null) {
socket.close();
}
}
return false;
}
@Override
protected boolean check(InetSocketAddress address, byte[] requestData, byte[] expectedResponseData) throws IOException {
Socket socket = null;
try {
socket = createSocket(address);
write(socket, requestData);
byte[] responseData = read(socket, 100);
return Arrays.equals(expectedResponseData, responseData);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (socket != null) {
socket.close();
}
}
return false;
}
private Socket createSocket(InetSocketAddress socketAddress) throws IOException {
Socket socket = new Socket();
socket.connect(socketAddress);
socket.setSoTimeout(3000);
return socket;
}
private void write(Socket socket, byte[] requestData) throws IOException {
OutputStream outputStream = socket.getOutputStream();
outputStream.write(requestData);
outputStream.flush();
}
private byte[] read(Socket socket, int readSize) throws IOException {
byte[] buf = new byte[readSize];
InputStream inputStream = socket.getInputStream();
inputStream.read(buf);
return buf;
}
}