| /* |
| * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.monitoring.share; |
| |
| import nsk.share.*; |
| |
| /** |
| * An abstract base class for operating VM state. The follow methods must |
| * be implemented by its subclasses: |
| * <ul> |
| * <li><code>run()</code> -- brings VM into defined state. |
| * <li><code>reset()</code> -- tries to reclaim VM into initial state. |
| * </ul> |
| */ |
| public abstract class StateController implements Runnable { |
| |
| /** |
| * Public default constructor. |
| */ |
| public StateController() { |
| super(); |
| } |
| |
| /** |
| * A string that is printed before each string when {@link Log#complain |
| * <code>Log.complain()</code>}, and {@link Log#display |
| * <code>Log.display()</code>} are invoked. |
| */ |
| protected String logPrefix; |
| |
| /** |
| * A variable to save reference to {@link Log <code>Log.Logger</code>} |
| * class. |
| */ |
| protected Log.Logger logger; |
| |
| /** |
| * Brings VM into defined state. |
| */ |
| public abstract void run(); |
| |
| /** |
| * Tries to reclaim VM into initial state |
| */ |
| public abstract void reset(); |
| |
| /** |
| * Outputs <code>message</code> using {@link Log <code>Log.Logger</code>} |
| * object. |
| */ |
| protected void display(String message) { |
| if (logger != null) |
| logger.display(message); |
| } |
| |
| /** |
| * Outputs <code>message</code> using {@link Log <code>Log.Logger</code>} |
| * object. |
| */ |
| protected void complain(String message) { |
| if (logger != null) |
| logger.complain(message); |
| } |
| |
| /** |
| * Defines {@link Log <code>Log.Logger</code>} object. |
| */ |
| public void setLog(Log log) { |
| logger = new Log.Logger(log, logPrefix); |
| } |
| |
| /** |
| * Converts an integer to string. |
| * |
| * @param i an integer to convert. |
| * @return a string that represents the int value. |
| */ |
| public String int2Str(int i) { |
| String tmp = ""; |
| |
| if (i < 10) { |
| tmp = "00"; |
| } else if (i >= 10 && i < 100) { |
| tmp = "0"; |
| } |
| return tmp + String.valueOf(i); |
| } |
| } |