/*

 * Copyright (c) 2005, 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.log.*;

/**

 * 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 StateControllerBase implements LogAware {

        protected Log log;

        public StateControllerBase(Log log) {

                this.log = log;

        }

        /**

         * Brings VM into defined state.

         */

        public abstract void run();

        /**

         * Tries to reclaim VM into initial state

         */

        public abstract void reset();

        /**

         * Defines {@link Log <code>Log.Logger</code>} object.

         */

        public final void setLog(Log log) {

                this.log = log;

        }

        /**

         * Converts an integer to string.

         *

         * @param i an integer to convert.

         * @return a string that represents the int value.

         */

        protected String int2Str(int i) {

                String tmp = "";

                if (i < 10) {

                        tmp = "00";

                } else if (i >= 10 && i < 100) {

                        tmp = "0";

                }

                return tmp + String.valueOf(i);

        }

}