1 package org.cyclopsgroup.jmxterm.io;
2
3 import java.io.IOException;
4
5 /**
6 * An abstract class that provides command line input line by line
7 *
8 * @author <a href="mailto:jiaqi.guo@gmail.com">Jiaqi Guo</a>
9 */
10 public abstract class CommandInput {
11 /**
12 * Closes and releases relevant resources.
13 */
14 public void close() throws IOException {}
15
16 /**
17 * Reads a single line from linput.
18 */
19 public abstract String readLine() throws IOException;
20
21 /**
22 * Reads input without echo'ing back keyboard input.
23 */
24 public abstract String readMaskedString(String prompt) throws IOException;
25 }