RequestHandler.java

package webserver;

import java.io.*;
import java.net.Socket;
import java.nio.file.Files;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import util.HttpRequestUtils;
import db.DataBase;

public class RequestHandler extends Thread {
    private static final Logger log = LoggerFactory.getLogger(RequestHandler.class);

    private Socket connection;

    public RequestHandler(Socket connectionSocket) {
        this.connection = connectionSocket;
    }

    public void run() {
        log.debug("New Client Connect! Connected IP : {}, Port : {}", connection.getInetAddress(),
                connection.getPort());

        try (InputStream in = connection.getInputStream(); OutputStream out = connection.getOutputStream()) {

            DataOutputStream dos = new DataOutputStream(out);
            String url = HttpRequestUtils.headerRequest(in);

            if (url.startsWith("/user/create")) {
                HttpRequestUtils.signUpRequest(url);
            }

            byte[] body = Files.readAllBytes(new File("./webapp" + url).toPath());
            response200Header(dos, body.length);
            responseBody(dos, body);


        } catch (IOException e) {
            log.error(e.getMessage());
        }
    }

    // private void stringSplit

    private void response200Header(DataOutputStream dos, int lengthOfBodyContent) {
        try {
            dos.writeBytes("HTTP/1.1 200 OK \r\n");
            dos.writeBytes("Content-Type: text/html;charset=utf-8\r\n");
            dos.writeBytes("Content-Length: " + lengthOfBodyContent + "\r\n");
            dos.writeBytes("\r\n");
        } catch (IOException e) {
            log.error(e.getMessage());
        }
    }

    private void responseBody(DataOutputStream dos, byte[] body) {
        try {
            dos.write(body, 0, body.length);
            dos.flush();
        } catch (IOException e) {
            log.error(e.getMessage());
        }
    }
}