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