userproperty.java

实现网格环境下资源调度和分配的仿真

/*
 * Title:        Visual Modeler for GridSim Toolkit
 * Description:  This Visual Modeler enables the user to quickly create
 *               experiments on different Grid testbeds and generate the
 *               default Grid Broker source codes (in Java).
 *
 * $Id: UserProperty.java,v 1.18 2003/06/19 07:31:00 anthony Exp $
 */

package visualmodeler;

// to handle loading XML. These packages exist since java 1.4
import org.w3c.dom.*;

import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;


/**
 * UserProperty stores the values needed for each grid user
 *
 * @author       Anthony Sulistio and Chee Shin Yeo
 * @version      1.1
 * @invariant $none
 */
public class UserProperty extends JDialog
                          implements ActionListener, WindowListener
{
    // GUI part
    // a hashtable to store the objects of JTextField, 20 so far.
    private Hashtable hashText_;
    private JButton ok_, cancel_;
    private JComboBox combo_;
    private JRadioButton radioFactor_, radioValue_;
    private Toolkit toolkit_;

    // Modal part that stores the user input values
    private int hour_, min_, sec_;
    private int gridSize_, lengthSize_, fileSize_, outputSize_;
    private double gridMin_, gridMax_, lengthMin_, lengthMax_;
    private double fileMin_, fileMax_, outputMin_, outputMax_;
    private double baudRate_, delay_;
    private double bNum_, dNum_;  // storing budget and deadline value
    private int id_;
    private String name_;

    // attribute related to scheduling policy of an user
    private int comboPolicy_;
    private final String[] comboValue_ =
                      { "No Optimisation",      "Optimise Cost",
                        "Optimise Cost Plus",   "Optimise Cost and Time",
                        "Optimise Time" };

    // a flag to determine whether the GUI components has created or not
    private boolean guiHasCreated_;

    // true if prev select is for factor, false for deadline/budget value
    private boolean curRadioFactor_;

    // true if XML data have been populated
    private boolean hasLoadXml_;


    /**
     * Allocates a new UserProperty object
     * @param id        a grid user id
     * @param name      a grid user name    
     * @param random    a flag to determine whether using random values to
     *                  create a grid user's properties or not
     * @param r         a Random object
     * @pre id >= 0
     * @pre name != null
     * @pre r != null
     * @post $none
     */
    public UserProperty(int id, String name, boolean random, Random r)
    {
        super.setModal(true);   // user can't open or use another window
        super.setSize(500, 500);
        super.setLocation(100, 100);
        super.setTitle("User Property Dialog");

        if (random == true) {
            randomValue(r);
        }
        else {
            defaultValue();
        }

        id_ = id;
        name_ = name;
        guiHasCreated_ = false;
        hasLoadXml_ = false;

        // init GUI components
        cancel_ = null;
        combo_ = null;
        hashText_ = null;
        ok_ = null;
        radioFactor_ = null;
        radioValue_ = null;
        toolkit_ = null;
    }

    /**
     * Gets the grid user name
     * @return user name
     * @pre $none
     * @post $result != null
     */
    public String getUserName() {
        return name_;
    }

    /**
     * Performs a certain task when an action occurs
     * @param   evt     an ActionEvent object
     * @pre evt != null
     * @post $none
     */
    public void actionPerformed(ActionEvent evt)
    {
        String cmd = evt.getActionCommand();

        // for ok button
        if (cmd.equalsIgnoreCase("ok") == true)
        {
            if (saveValue() == false) {
                return;
            }
        }

        // for cancel button
        else {
            resetValue();
        }

        removeListeners();
        dispose();
    }

    /**
     * Shows a grid user dialog
     * @pre $none
     * @post $none
     */
    public void showDialog()
    {
        if (guiHasCreated_ == false)
        {
            guiHasCreated_ = true;
            this.addWindowListener(this);
            initComponents();
        }

        ok_.addActionListener(this);
        cancel_.addActionListener(this);

        this.show();
    }

    /**
     * Generates a Java code regarding to grid users properties
     * @param indent    indentation
     * @return a Java code in String object
     * @pre indent != null
     * @post $result != null
     */
    public String generateCode(String indent)
    {
        String seed = "seed*997*(1+" + id_ + ")+1";
        final int VAL = 100;

        // do the init
        StringBuffer code = new StringBuffer(1000);
        code.append("\n");
        code.append(indent);
        code.append("///////// Create ");
        code.append(name_);
        code.append("\n");
        code.append(indent);
        code.append("random = new Random(");
        code.append(seed);
        code.append(");\n");
        code.append(indent);
        code.append("glList = new GridletList();\n");

        // Create the gridlets
        code.append(indent);
        code.append("count = (int) GridSimRandom.real(");
        code.append(gridSize_);
        code.append(", ");
        code.append(gridMin_ / VAL);
        code.append(", ");
        code.append(gridMax_ / VAL);
        code.append(", random.nextDouble());\n\n");

        // loop to add one gridlet at the time to the linked-list
        code.append(indent);
        code.append("// A loop that creates new Gridlets\n");
        code.append(indent);
        code.append("for (int i = 0; i < count; i++) {\n");
        code.append(indent);
        code.append("    ");
        code.append("double len = GridSimRandom.real(");
        code.append(lengthSize_);
        code.append(", ");
        code.append(lengthMin_ / VAL);
        code.append(", ");
        code.append(lengthMax_ / VAL);
        code.append(", random.nextDouble());\n\n");

        code.append(indent);
        code.append("    ");
        code.append("long file = (long) GridSimRandom.real(");
        code.append(fileSize_);
        code.append(", ");
        code.append(fileMin_ / VAL);
        code.append(", ");
        code.append(fileMax_ / VAL);
        code.append(", random.nextDouble());\n\n");

        code.append(indent);
        code.append("    ");
        code.append("long out = (long) GridSimRandom.real(");
        code.append(outputSize_);
        code.append(", ");
        code.append(outputMin_ / VAL);
        code.append(", ");
        code.append(outputMax_ / VAL);
        code.append(", random.nextDouble());\n\n");

        code.append(indent);
        code.append("    // Creates a new Gridlet entity \n");
        code.append(indent);
        code.append("    ");
        code.append("Gridlet gl = new Gridlet(i, len, file, out);\n");

        code.append(indent);
        code.append("    glList.add(gl);   // Adds a new Gridlet into a list\n");
        code.append(indent);
        code.append("}\n\n");

        // create the experiment
        code.append(indent);
        code.append("expt = new Experiment(");
        code.append(id_);
        code.append(", glList, ");
        code.append(comboPolicy_);
        code.append(", ");
        code.append(curRadioFactor_);
        code.append(", ");
        code.append(dNum_);
        code.append(", ");
        code.append(bNum_);
        code.append(",\n");
        code.append(indent);
        code.append("    \"report");
        code.append(id_);
        code.append(".txt\", resourceNameList);\n\n");

        // create the user entity
        code.append(indent);
        code.append("userEntity = new UserEntity(\"User");
        code.append(id_);
        code.append("\", expt, ");
        code.append(baudRate_);
        code.append(", ");
        code.append(seed);
        code.append(",\n    ");
        code.append(indent);
        code.append(delay_);
        code.append(", false);\n");

        return code.toString();
    }

    /**
     * Generates a XML code regarding to grid users properties
     * @param spaces    number of spaces
     * @return a XML code in String object
     * @pre spaces != null
     * @post $result != null
     */
    public String saveFile(String spaces)
    {
        final int VAL = 100;
        String indent = spaces + "    ";
        String tab = indent + "    ";
        String doubleTab = tab + "    ";

        // write the user header
        StringBuffer xml = new StringBuffer(1000);
        xml.append("\n\n");
        xml.append(spaces);
        xml.append("<user>\n");

        // write the user id
        xml.append(indent);
        xml.append("<id> ");
        xml.append(id_);
        xml.append(" </id>\n");

        // write the user name
        xml.append(indent);
        xml.append("<name> ");
        xml.append(name_);
        xml.append(" </name>\n");

        // write the baud rate
        xml.append(indent);
        xml.append("<baudRate> ");
        xml.append(baudRate_);
        xml.append(" </baudRate>\n");

        // write the time that consists of hour, minute and second
        xml.append(indent);
        xml.append("<time>\n");
        xml.append(tab);
        xml.append("<hour> ");
        xml.append(hour_);
        xml.append(" </hour>\n");
        xml.append(tab);
        xml.append("<minute> ");
        xml.append(min_);
        xml.append(" </minute>\n");
        xml.append(tab);
        xml.append("<second> ");
        xml.append(sec_);
        xml.append(" </second>\n");
        xml.append(indent);
        xml.append("</time>\n");

        // write the delay
        xml.append(indent);
        xml.append("<delay> ");
        xml.append(delay_);
        xml.append(" </delay>\n");

        // write scheduling strategy - choose one from the 5 options
        xml.append(indent);
        xml.append("<schedulingStrategy> ");
        xml.append(comboValue_[comboPolicy_]);
        xml.append(" </schedulingStrategy>\n");

        // write the gridlet property
        xml.append(indent);
        xml.append("<gridletProperty>\n");

        // write the gridlet size, min deviation and max deviation
        xml.append(tab);
        xml.append("<gridlet>\n");
        xml.append(doubleTab);
        xml.append("<size> ");
        xml.append(gridSize_);
        xml.append(" </size>\n");
        xml.append(doubleTab);
        xml.append("<minDeviation> ");
        xml.append( gridMin_ / VAL );
        xml.append(" </minDeviation>\n");
        xml.append(doubleTab);
        xml.append("<maxDeviation> ");
        xml.append( gridMax_ / VAL );
        xml.append(" </maxDeviation>\n");
        xml.append(tab);
        xml.append("</gridlet>\n");

        // write the length size, min deviation and max deviation
        xml.append(tab);
        xml.append("<length>\n");
        xml.append(doubleTab);
        xml.append("<size> ");
        xml.append(lengthSize_);
        xml.append(" </size>\n");
        xml.append(doubleTab);
        xml.append("<minDeviation> ");
        xml.append( lengthMin_ / VAL );
        xml.append(" </minDeviation>\n");
        xml.append(doubleTab);
        xml.append("<maxDeviation> ");
        xml.append( lengthMax_ / VAL );
        xml.append(" </maxDeviation>\n");
        xml.append(tab);
        xml.append("</length>\n");

        // write the file size, min deviation and max deviation
        xml.append(tab);
        xml.append("<file>\n");
        xml.append(doubleTab);
        xml.append("<size> ");
        xml.append(fileSize_);
        xml.append(" </size>\n");
        xml.append(doubleTab);
        xml.append("<minDeviation> ");
        xml.append(fileMin_ / VAL);
        xml.append(" </minDeviation>\n");