StripChart.java
| Index Score | ||
|---|---|---|
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weka.gui.beans |
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Weka |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| DECL_COMMENTS | Comments in declarations |  |
| LOGICAL_LINES | Number of statements | |
| EXITS | Procedure exits | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| ELOC | Effective lines of code | |
| OPERANDS | Number of operands | |
| LINES | Number of lines in the source file | |
| LOC | Lines of code | |
| EXEC_COMMENTS | Comments in executable code | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| DOC_COMMENT | Number of javadoc comment lines | |
| SIZE | Size of the file in bytes | |
| COMMENTS | Comment lines | |
| BLOCKS | Number of blocks | |
| JAVA0096 | JAVA0096 Field in nested class hides outer field | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0076 | JAVA0076 Use of magic number | |
| FUNCTIONS | Number of function declarations | |
| COMPARISONS | Number of comparison operators | |
| LOOPS | Number of loops | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0267 | JAVA0267 Use of System.err | |
| JAVA0078 | JAVA0078 Floating point values compared with == | |
| LINE_COMMENT | Number of line comments | |
| UNIQUE_OPERATORS | Number of unique operators | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0240 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| RETURNS | Number of return points from functions | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0119 | JAVA0119 Control variable changed within body of for loop | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* StripChart.java
* Copyright (C) 2002 University of Waikato, Hamilton, New Zealand
*
*/
package weka.gui.beans;
import weka.core.Instance;
import weka.core.Instances;
import weka.gui.visualize.PrintableComponent;
import weka.gui.visualize.VisualizeUtils;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.beans.EventSetDescriptor;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.Enumeration;
import java.util.LinkedList;
import java.util.Random;
import java.util.Vector;
import javax.swing.BorderFactory;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.TitledBorder;
/**
* Bean that can display a horizontally scrolling strip chart. Can
* display multiple plots simultaneously
*
* @author <a href="mailto:mhall@cs.waikato.ac.nz">Mark Hall</a>
* @version $Revision: 1.17 $
*/
public class StripChart
extends JPanel
implements ChartListener, InstanceListener, Visible,
BeanCommon, UserRequestAcceptor {
/** for serialization */
private static final long serialVersionUID = 1483649041577695019L;
/** default colours for colouring lines */
protected Color [] m_colorList = {Color.green,
Color.red,
Color.blue,
Color.cyan,
Color.pink,
new Color(255, 0, 255),
Color.orange,
new Color(255, 0, 0),
new Color(0, 255, 0),
Color.white};
/** the background color. */
protected Color m_BackgroundColor;
/** the color of the legend panel's border. */
protected Color m_LegendPanelBorderColor;
/**
* Class providing a panel for the plot.
*/
private class StripPlotter
extends JPanel {
/** for serialization. */
private static final long serialVersionUID = -7056271598761675879L;
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (m_osi != null) {
g.drawImage(m_osi,0,0,this);
}
}
}
private transient JFrame m_outputFrame = null;
private transient StripPlotter m_plotPanel = null;
/**
* The off screen image for rendering to.
*/
private transient Image m_osi = null;
/**
* Width and height of the off screen image.
*/
private int m_iheight;
private int m_iwidth;
/**
* Max value for the y axis.
*/
private double m_max = 1;
/**
* Min value for the y axis.
*/
private double m_min = 0;
/**
* Scale update requested.
*/
private boolean m_yScaleUpdate = false;
private double m_oldMax;
private double m_oldMin;
private Font m_labelFont = new Font("Monospaced", Font.PLAIN, 10);
private FontMetrics m_labelMetrics;
// private int m_plotCount = 0;
private Vector m_legendText = new Vector();
/**
* Class providing a panel for displaying the y axis.
*/
private class ScalePanel
extends JPanel {
/** for serialization. */
private static final long serialVersionUID = 6416998474984829434L;
public void paintComponent(Graphics gx) {
super.paintComponent(gx);
if (m_labelMetrics == null) {
m_labelMetrics = gx.getFontMetrics(m_labelFont);
}
gx.setFont(m_labelFont);
int hf = m_labelMetrics.getAscent();
String temp = ""+m_max;
gx.setColor(m_colorList[m_colorList.length-1]);
gx.drawString(temp, 1, hf-2);
temp = ""+(m_min + ((m_max - m_min)/2.0));
gx.drawString(temp, 1, (this.getHeight() / 2)+(hf / 2));
temp = ""+m_min;
gx.drawString(temp, 1, this.getHeight()-1);
}
};
/** the scale. */
private ScalePanel m_scalePanel = new ScalePanel();
/**
* Class providing a panel for the legend.
*/
private class LegendPanel
extends JPanel {
/** for serialization. */
private static final long serialVersionUID = 7713986576833797583L;
public void paintComponent(Graphics gx) {
super.paintComponent(gx);
if (m_labelMetrics == null) {
m_labelMetrics = gx.getFontMetrics(m_labelFont);
}
int hf = m_labelMetrics.getAscent();
int x = 10; int y = hf+15;
gx.setFont(m_labelFont);
for (int i = 0; i < m_legendText.size(); i++) {
String temp = (String)m_legendText.elementAt(i);
gx.setColor(m_colorList[(i % m_colorList.length)]);
gx.drawString(temp,x,y);
y+=hf;
}
StripChart.this.revalidate();
}
};
/** the legend. */
private LegendPanel m_legendPanel = new LegendPanel();
/**
* Holds the data to be plotted. Entries in the list are arrays of
* y points.
*/
private LinkedList m_dataList = new LinkedList();
// private double [] m_dataPoint = new double[1];
private double [] m_previousY = new double[1];
private transient Thread m_updateHandler;
protected BeanVisual m_visual =
new BeanVisual("StripChart",
BeanVisual.ICON_PATH+"StripChart.gif",
BeanVisual.ICON_PATH+"StripChart_animated.gif");
private Object m_listenee = null;
private transient weka.gui.Logger m_log = null;
/**
* Print x axis labels every m_xValFreq points
*/
private int m_xValFreq = 500;
private int m_xCount = 0;
/**
* Shift the plot by this many pixels every time a point is plotted
*/
private int m_refreshWidth = 1;
/**
* Plot every m_refreshFrequency'th point
*/
private int m_refreshFrequency = 5;
/** the class responsible for printing */
protected PrintableComponent m_Printer = null;
public StripChart() {
// m_plotPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
setLayout(new BorderLayout());
add(m_visual, BorderLayout.CENTER);
// start a thread to handle plot updates
initPlot();
}
/**
* Set a custom (descriptive) name for this bean
*
* @param name the name to use
*/
public void setCustomName(String name) {
m_visual.setText(name);
}
/**
* Get the custom (descriptive) name for this bean (if one has been set)
*
* @return the custom name (or the default name)
*/
public String getCustomName() {
return m_visual.getText();
}
/**
* Global info for this bean
*
* @return a <code>String</code> value
*/
public String globalInfo() {
return "Visualize incremental classifier performance as a scrolling plot.";
}
/**
* GUI Tip text
*
* @return a <code>String</code> value
*/
public String xLabelFreqTipText() {
return "Show x axis labels this often";
}
/**
* Set the frequency for printing x label values
*
* @param freq an <code>int</code> value
*/
public void setXLabelFreq(int freq) {
m_xValFreq = freq;
if (getGraphics() != null)
setRefreshWidth();
}
/**
* Get the frequency by which x axis values are printed
*
* @return an <code>int</code> value
*/
public int getXLabelFreq() {
return m_xValFreq;
}
/**
* GUI Tip text
*
* @return a <code>String</code> value
*/
public String refreshFreqTipText() {
return "Plot every x'th data point";
}
/**
* Set how often (in x axis points) to refresh the display
*
* @param freq an <code>int</code> value
*/
public void setRefreshFreq(int freq) {
m_refreshFrequency = freq;
if (getGraphics() != null)
setRefreshWidth();
}
/**
* Get the refresh frequency
*
* @return an <code>int</code> value
*/
public int getRefreshFreq() {
return m_refreshFrequency;
}
private void setRefreshWidth() {
m_refreshWidth = 1;
if (m_labelMetrics == null) {
getGraphics().setFont(m_labelFont);
m_labelMetrics = getGraphics().getFontMetrics(m_labelFont);
}
int refWidth = m_labelMetrics.stringWidth("99000");
// compute how often x label will be rendered
int z = (getXLabelFreq() / getRefreshFreq());
if (z < 1) {
z = 1;
}
if (z * m_refreshWidth < refWidth+5) {
m_refreshWidth *= (((refWidth+5) / z) + 1) ;
}
}
/**
* Provide some necessary initialization after object has
* been deserialized.
*
* @param ois an <code>ObjectInputStream</code> value
* @exception IOException if an error occurs
* @exception ClassNotFoundException if an error occurs
*/
private void readObject(ObjectInputStream ois)
throws IOException, ClassNotFoundException {
try {
ois.defaultReadObject();
initPlot();
// startHandler();
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* Loads properties from properties file.
*
* @see KnowledgeFlowApp#BEAN_PROPERTIES
*/
private void setProperties() {
String key;
String color;
// background color
key = this.getClass().getName() + ".backgroundColour";
color = KnowledgeFlowApp.BEAN_PROPERTIES.getProperty(key);
m_BackgroundColor = Color.BLACK;
if (color != null)
m_BackgroundColor = VisualizeUtils.processColour(color, m_BackgroundColor);
// legend color (border)
key = m_legendPanel.getClass().getName() + ".borderColour";
color = KnowledgeFlowApp.BEAN_PROPERTIES.getProperty(key);
m_LegendPanelBorderColor = Color.BLUE;
if (color != null)
m_LegendPanelBorderColor = VisualizeUtils.processColour(color, m_LegendPanelBorderColor);
}
private void initPlot() {
setProperties();
m_plotPanel = new StripPlotter();
m_plotPanel.setBackground(m_BackgroundColor);
m_scalePanel.setBackground(m_BackgroundColor);
m_legendPanel.setBackground(m_BackgroundColor);
m_xCount = 0;
}
private void startHandler() {
if (m_updateHandler == null) {
m_updateHandler = new Thread() {
private double [] dataPoint;
public void run() {
while (true) {
if (m_outputFrame != null) {
synchronized(m_dataList) {
while(m_dataList.isEmpty()) {
// while (m_dataList.empty()) {
try {
m_dataList.wait();
} catch (InterruptedException ex) {
return;
}
}
dataPoint = (double [])m_dataList.remove(0);
//dataPoint = (double [])m_dataList.pop();
}
if (m_outputFrame != null) {
StripChart.this.updateChart(dataPoint);
}
}
}
}
};
// m_updateHandler.setPriority(Thread.MIN_PRIORITY);
m_updateHandler.start();
}
}
/**
* Popup the chart panel
*/
public void showChart() {
if (m_outputFrame == null) {
m_outputFrame = new JFrame("Strip Chart");
m_outputFrame.getContentPane().setLayout(new BorderLayout());
JPanel panel = new JPanel(new BorderLayout());
new PrintableComponent(panel);
m_outputFrame.getContentPane().add(panel, BorderLayout.CENTER);
panel.add(m_legendPanel, BorderLayout.WEST);
panel.add(m_plotPanel, BorderLayout.CENTER);
panel.add(m_scalePanel, BorderLayout.EAST);
m_legendPanel.setMinimumSize(new Dimension(100,getHeight()));
m_legendPanel.setPreferredSize(new Dimension(100,getHeight()));
m_scalePanel.setMinimumSize(new Dimension(30, getHeight()));
m_scalePanel.setPreferredSize(new Dimension(30, getHeight()));
Font lf = new Font("Monospaced", Font.PLAIN, 12);
m_legendPanel.setBorder(BorderFactory.
createTitledBorder(BorderFactory.
createEtchedBorder(Color.gray,
Color.darkGray),
"Legend" ,
TitledBorder.CENTER,
TitledBorder.DEFAULT_POSITION, lf,
m_LegendPanelBorderColor));
m_outputFrame.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
if (m_updateHandler != null) {
System.err.println("Interrupting");
m_updateHandler.interrupt();
m_updateHandler = null;
}
synchronized (m_dataList) {
m_dataList = new LinkedList();
}
m_outputFrame.dispose();
m_outputFrame = null;
}
});
m_outputFrame.pack();
m_outputFrame.setSize(600,150);
m_outputFrame.setResizable(false);
m_outputFrame.setVisible(true);
int iwidth = m_plotPanel.getWidth();
int iheight = m_plotPanel.getHeight();
m_osi = m_plotPanel.createImage(iwidth, iheight);
Graphics m = m_osi.getGraphics();
m.setColor(m_BackgroundColor);
m.fillRect(0,0,iwidth,iheight);
m_previousY[0] = -1;
setRefreshWidth();
if (m_updateHandler == null) {
System.err.println("Starting handler");
startHandler();
}
} else {
m_outputFrame.toFront();
}
}
private int convertToPanelY(double yval) {
int height = m_plotPanel.getHeight();
double temp = (yval - m_min) / (m_max - m_min);
temp = temp * height;
temp = height - temp;
return (int)temp;
}
/**
* Update the plot
*
* @param dataPoint contains y values to plot
*/
protected void updateChart(double [] dataPoint) {
if (m_previousY[0] == -1) {
int iw = m_plotPanel.getWidth();
int ih = m_plotPanel.getHeight();
m_osi = m_plotPanel.createImage(iw, ih);
Graphics m = m_osi.getGraphics();
m.setColor(m_BackgroundColor);
m.fillRect(0,0,iw,ih);
m_previousY[0] = convertToPanelY(0);
m_iheight = ih; m_iwidth = iw;
}
if (dataPoint.length-1 != m_previousY.length) {
m_previousY = new double [dataPoint.length-1];
// m_plotCount = 0;
for (int i = 0; i < dataPoint.length-1; i++) {
m_previousY[i] = convertToPanelY(0);
}
}
Graphics osg = m_osi.getGraphics();
Graphics g = m_plotPanel.getGraphics();
osg.copyArea(m_refreshWidth,0,m_iwidth-m_refreshWidth,
m_iheight,-m_refreshWidth,0);
osg.setColor(m_BackgroundColor);
osg.fillRect(m_iwidth-m_refreshWidth,0, m_iwidth, m_iheight);
// paint the old scale onto the plot if a scale update has occured
if (m_yScaleUpdate) {
String maxVal = numToString(m_oldMax);
String minVal = numToString(m_oldMin);
String midVal = numToString((m_oldMax - m_oldMin) / 2.0);
if (m_labelMetrics == null) {
m_labelMetrics = g.getFontMetrics(m_labelFont);
}
osg.setFont(m_labelFont);
int wmx = m_labelMetrics.stringWidth(maxVal);
int wmn = m_labelMetrics.stringWidth(minVal);
int wmd = m_labelMetrics.stringWidth(midVal);
int hf = m_labelMetrics.getAscent();
osg.setColor(m_colorList[m_colorList.length-1]);
osg.drawString(maxVal, m_iwidth-wmx, hf-2);
osg.drawString(midVal, m_iwidth-wmd, (m_iheight / 2)+(hf / 2));
osg.drawString(minVal, m_iwidth-wmn, m_iheight-1);
m_yScaleUpdate = false;
}
double pos;
for (int i = 0; i < dataPoint.length-1; i++) {
osg.setColor(m_colorList[(i % m_colorList.length)]);
pos = convertToPanelY(dataPoint[i]);
osg.drawLine(m_iwidth-m_refreshWidth, (int)m_previousY[i],
m_iwidth-1, (int)pos);
m_previousY[i] = pos;
if (dataPoint[dataPoint.length-1] % m_xValFreq == 0) {
// draw the actual y value onto the plot for this curve
String val = numToString(dataPoint[i]);
if (m_labelMetrics == null) {
m_labelMetrics = g.getFontMetrics(m_labelFont);
}
int hf = m_labelMetrics.getAscent();
if (pos - hf < 0) {
pos += hf;
}
int w = m_labelMetrics.stringWidth(val);
osg.setFont(m_labelFont);
osg.drawString(val, m_iwidth-w, (int)pos);
}
}
// last element in the data point array contains the data point number
if (dataPoint[dataPoint.length-1] % m_xValFreq == 0) {
String xVal = ""+(int)dataPoint[dataPoint.length-1];
osg.setColor(m_colorList[m_colorList.length-1]);
int w = m_labelMetrics.stringWidth(xVal);
osg.setFont(m_labelFont);
osg.drawString(xVal, m_iwidth-w, m_iheight - 1);
}
g.drawImage(m_osi,0,0,m_plotPanel);
// System.err.println("Finished");
// m_plotCount++;
}
private static String numToString(double num) {
int precision = 1;
int whole = (int)Math.abs(num);
double decimal = Math.abs(num) - whole;
int nondecimal;
nondecimal = (whole > 0)
? (int)(Math.log(whole) / Math.log(10))
: 1;
precision = (decimal > 0)
? (int)Math.abs(((Math.log(Math.abs(num)) /
Math.log(10))))+2
: 1;
if (precision > 5) {
precision = 1;
}
String numString = weka.core.Utils.doubleToString(num,
nondecimal+1+precision
,precision);
return numString;
}
ChartEvent m_ce = new ChartEvent(this);
double [] m_dataPoint = null;
public void acceptInstance(InstanceEvent e) {
if (e.getStatus() == InstanceEvent.FORMAT_AVAILABLE) {
Instances structure = e.getStructure();
m_legendText = new Vector();
m_max = 1.0;
m_min = 0;
int i = 0;
for (i =0; i < structure.numAttributes(); i++) {
if (i > 10) {
i--;
break;
}
m_legendText.addElement(structure.attribute(i).name());
m_legendPanel.repaint();
m_scalePanel.repaint();
}
m_dataPoint = new double[i];
m_xCount = 0;
return;
}
// process data point
Instance inst = e.getInstance();
for (int i = 0; i < m_dataPoint.length; i++) {
if (!inst.isMissing(i)) {
m_dataPoint[i] = inst.value(i);
}
}
acceptDataPoint(m_dataPoint);
m_xCount++;
}
/**
* Accept a data point (encapsulated in a chart event) to plot
*
* @param e a <code>ChartEvent</code> value
*/
public void acceptDataPoint(ChartEvent e) {
if (e.getReset()) {
m_xCount = 0;
m_max = 1;
m_min = 0;
}
if (m_outputFrame != null) {
boolean refresh = false;
if (e.getLegendText() != null & e.getLegendText() != m_legendText) {
m_legendText = e.getLegendText();
refresh = true;
}
if (e.getMin() != m_min || e.getMax() != m_max) {
m_oldMax = m_max; m_oldMin = m_min;
m_max = e.getMax();
m_min = e.getMin();
refresh = true;
m_yScaleUpdate = true;
}
if (refresh) {
m_legendPanel.repaint();
m_scalePanel.repaint();
}
acceptDataPoint(e.getDataPoint());
}
m_xCount++;
}
/**
* Accept a data point to plot
*
* @param dataPoint a <code>double[]</code> value
*/
public void acceptDataPoint(double [] dataPoint) {
if (m_outputFrame != null && (m_xCount % m_refreshFrequency == 0 )) {
double [] dp = new double[dataPoint.length+1];
dp[dp.length-1] = m_xCount;
System.arraycopy(dataPoint, 0, dp, 0, dataPoint.length);
// check for out of scale values
for (int i = 0; i < dataPoint.length; i++) {
if (dataPoint[i] < m_min) {
m_oldMin = m_min; m_min = dataPoint[i];
m_yScaleUpdate = true;
}
if (dataPoint[i] > m_max) {
m_oldMax = m_max; m_max = dataPoint[i];
m_yScaleUpdate = true;
}
}
if (m_yScaleUpdate) {
m_scalePanel.repaint();
m_yScaleUpdate = false;
}
synchronized(m_dataList) {
m_dataList.add(m_dataList.size(), dp);
// m_dataList.push(dp);
m_dataList.notifyAll();
/* if (m_dataList.size() != 0) {
System.err.println("***** "+m_dataList.size());
} */
// System.err.println(m_xCount);
}
}
}
/**
* Set the visual appearance of this bean
*
* @param newVisual a <code>BeanVisual</code> value
*/
public void setVisual(BeanVisual newVisual) {
m_visual = newVisual;
}
/**
* Get the visual appearance of this bean
*/
public BeanVisual getVisual() {
return m_visual;
}
/**
* Use the default visual appearance for this bean
*/
public void useDefaultVisual() {
m_visual.loadIcons(BeanVisual.ICON_PATH+"StripChart.gif",
BeanVisual.ICON_PATH+"StripChart_animated.gif");
}
/**
* Stop any processing that the bean might be doing.
*/
public void stop() {
// tell the listenee (upstream bean) to stop
if (m_listenee instanceof BeanCommon) {
((BeanCommon)m_listenee).stop();
}
}
/**
* Set a logger
*
* @param logger a <code>weka.gui.Logger</code> value
*/
public void setLog(weka.gui.Logger logger) {
m_log = logger;
}
/**
* Returns true if, at this time,
* the object will accept a connection via the named event
*
* @param eventName the name of the event
* @return true if the object will accept a connection
*/
public boolean connectionAllowed(String eventName) {
if (m_listenee == null) {
return true;
}
return false;
}
/**
* Returns true if, at this time,
* the object will accept a connection according to the supplied
* EventSetDescriptor
*
* @param esd the EventSetDescriptor
* @return true if the object will accept a connection
*/
public boolean connectionAllowed(EventSetDescriptor esd) {
return connectionAllowed(esd.getName());
}
/**
* Notify this object that it has been registered as a listener with
* a source for recieving events described by the named event
* This object is responsible for recording this fact.
*
* @param eventName the event
* @param source the source with which this object has been registered as
* a listener
*/
public void connectionNotification(String eventName, Object source) {
if (connectionAllowed(eventName)) {
m_listenee = source;
}
}
/**
* Notify this object that it has been deregistered as a listener with
* a source for named event. This object is responsible
* for recording this fact.
*
* @param eventName the event
* @param source the source with which this object has been registered as
* a listener
*/
public void disconnectionNotification(String eventName, Object source) {
m_listenee = null;
}
/**
* Describe <code>enumerateRequests</code> method here.
*
* @return an <code>Enumeration</code> value
*/
public Enumeration enumerateRequests() {
Vector newVector = new Vector(0);
newVector.addElement("Show chart");
return newVector.elements();
}
/**
* Describe <code>performRequest</code> method here.
*
* @param request a <code>String</code> value
* @exception IllegalArgumentException if an error occurs
*/
public void performRequest(String request) {
if (request.compareTo("Show chart") == 0) {
showChart();
} else {
throw new
IllegalArgumentException(request
+ " not supported (StripChart)");
}
}
/**
* Tests out the StripChart from the command line
*
* @param args ignored
*/
public static void main(String [] args) {
try {
final javax.swing.JFrame jf =
new javax.swing.JFrame("Weka Knowledge Flow : StipChart");
jf.getContentPane().setLayout(new BorderLayout());
final StripChart jd = new StripChart();
jf.getContentPane().add(jd, BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
System.exit(0);
}
});
jf.pack();
jf.setVisible(true);
jd.showChart();
Random r = new Random(1);
for (int i = 0; i < 1020; i++) {
double [] pos = new double[1];
pos[0] = r.nextDouble();
jd.acceptDataPoint(pos);
}
System.err.println("Done sending data");
} catch (Exception ex) {
ex.printStackTrace();
System.err.println(ex.getMessage());
}
}
}
The table below shows all metrics for StripChart.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 97.00 | Number of blocks | |
| BLOCK_COMMENT | 23.00 | Number of block comment lines | |
| COMMENTS | 243.00 | Comment lines | |
| COMMENT_DENSITY | 0.54 | Comment density | |
| COMPARISONS | 61.00 | Number of comparison operators | |
| CYCLOMATIC | 97.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 54.00 | Comments in declarations | |
| DOC_COMMENT | 198.00 | Number of javadoc comment lines | |
| ELOC | 450.00 | Effective lines of code | |
| EXEC_COMMENTS | 20.00 | Comments in executable code | |
| EXITS | 92.00 | Procedure exits | |
| FUNCTIONS | 40.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 110.25 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 69.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 4.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 2.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 13.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 5.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 1.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 1.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 3.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 0.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 1.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 1.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 220.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 2.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 2.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 4.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 1.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 2.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 4.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 1.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 886.00 | Number of lines in the source file | |
| LINE_COMMENT | 22.00 | Number of line comments | |
| LOC | 544.00 | Lines of code | |
| LOGICAL_LINES | 322.00 | Number of statements | |
| LOOPS | 9.00 | Number of loops | |
| NEST_DEPTH | 8.00 | Maximum nesting depth | |
| OPERANDS | 1288.00 | Number of operands | |
| OPERATORS | 2418.00 | Number of operators | |
| PARAMS | 25.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3706.00 | Halstead program length | |
| PROGRAM_VOCAB | 431.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 44.00 | Number of return points from functions | |
| SIZE | 24015.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 368.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 63.00 | Number of unique operators | |
| WHITESPACE | 99.00 | Number of whitespace lines | |