/** 
 * we reuse a class written in example:
 * pleas to familiar with it first to continue with this one 
 **/
public class WriteToSocketExample extends ConnectSocketExample {

    private String CRLF = "\r\n"; // line termination (separator)

    /**
     * write a simple http get request to socket
     * @param host - host to establish a connection
     *               (http server - see ConnectSocketExample HTTP_PORT )
     * @param path - path to file ( in this case a url location - part used in browser after host)
     * @return a  connected socket with filled in raw get request
     * @throws IOException - see ConnectSocketExample.connectSocket(host);
     */
    protected Socket writeGetToSocket(String host, String path) throws IOException {
        // create simple http raw get request for host/path
        String rawHttpGetRequest = "GET "+ path +" HTTP/1.1 " + CRLF  // request line
                + "Host: "+ host + CRLF
                + CRLF;
        // get bytes of this request using proper encodings
        byte[] bytesOfRequest = rawHttpGetRequest.getBytes(Charset.forName("UTF-8)"));
        // create & connect to socket
        Socket socket = connectSocket(host);
        // get socket output stream
        OutputStream outputStream = socket.getOutputStream();
        // write to the stream a get request we created
        outputStream.write(bytesOfRequest);
        // return socket with written get request
        return  socket;
    }

    /**
     * create, connect and write to socket simple http get request
     * then dump response of this request
     * @throws IOException
     */
    public void writeToSocketAndDumpResponse() throws IOException {
        // send request to http server for / page content
        Socket socket = writeGetToSocket("google.com", "/");
        // now we will read response from server
        InputStream inputStream = socket.getInputStream();
        // create a byte array buffer to read respons in chunks
        byte[] buffer = new byte[1024];
        // define a var to hold count of read bytes from stream
        int weRead;
        // read bytes from socket till exhausted or read time out will occurred ( as we didn't add in raw get header Connection: close (default keep-alive)
        while ((weRead = inputStream.read(buffer)) != -1) {
            // print what we have read
            System.out.print(new String(buffer));
        }
    }
}

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