/*******************************************************************************
 * Copyright 2010 Simon Mieth
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package org.kabeja.ui.impl;

import java.awt.Dimension;
import java.awt.Font;

import org.kabeja.ui.ApplicationToolBar;
import org.kabeja.ui.ServiceManager;
import org.kabeja.ui.Serviceable;
import org.kabeja.ui.Startable;

import de.miethxml.toolkit.ui.MemoryUsageComponent;


/**
 * @author simon
 *
 *
 *
 */
public class MemoryUsageToolbarComponent implements Serviceable, Startable {
    private boolean interrupted = false;
    private MemoryUsageComponent view;

    public void initialize() {
        view = new MemoryUsageComponent();
        view.setFont(new Font("Serif", Font.PLAIN, 9));
        view.setPreferredSize(new Dimension(60, 24));
        view.setMaximumSize(new Dimension(60, 24));
    }

    public void start() {
        Thread t = new Thread(new Runnable() {
                    public void run() {
                        while (!interrupted) {
                            long total = Runtime.getRuntime().maxMemory();

                            if (total == Long.MAX_VALUE) {
                                total = Runtime.getRuntime().totalMemory();
                            }

                            view.setTotalSize(total);
                            view.setCurrentSize(total -
                                Runtime.getRuntime().freeMemory());

                            try {
                                Thread.sleep(2000);
                            } catch (Exception e) {
                            }
                        }
                    }
                });
        t.start();
    }

    public void stop() {
        interrupted = true;
    }

    public void setServiceManager(ServiceManager manager) {
        this.initialize();

        Object[] objects = manager.getServiceComponents(ApplicationToolBar.SERVICE);

        for (int i = 0; i < objects.length; i++) {
            ((ApplicationToolBar) objects[i]).addAction(view);
        }
    }
}