src/java/org/apache/log4j/chainsaw/ChainsawStatusBar.java - logging-chainsaw - Git at Google

 /*
  * Copyright 1999,2004 The Apache Software Foundation.
  *
  * 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.apache.log4j.chainsaw;

 import java.awt.Dimension;
 import java.awt.FlowLayout;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.Insets;
 import java.text.NumberFormat;

 import javax.swing.BorderFactory;
 import javax.swing.Icon;
 import javax.swing.ImageIcon;
 import javax.swing.JComponent;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.SwingConstants;
 import javax.swing.SwingUtilities;
 import javax.swing.border.Border;

 import org.apache.log4j.chainsaw.icons.ChainsawIcons;
 import org.apache.log4j.chainsaw.messages.MessageCenter;


 /**
  * A general purpose status bar for all Frame windows
  *
  * @author Paul Smith <psmith@apache.org>
  *
  */
 public class ChainsawStatusBar extends JPanel {
   private static final int DELAY_PERIOD = 5000;
   private static final String DEFAULT_MSG = "Welcome to Chainsaw v2!";
   private final JLabel statusMsg = new JLabel(DEFAULT_MSG);
   private final JLabel pausedLabel = new JLabel("", SwingConstants.CENTER);
   private final JLabel lineSelectionLabel = new JLabel("", SwingConstants.CENTER);
   private final JLabel eventCountLabel = new JLabel("", SwingConstants.CENTER);
   private final JLabel receivedEventLabel = new JLabel("0.0", SwingConstants.CENTER);
   private final JLabel receivedConnectionlabel = new JLabel("", SwingConstants.CENTER);
   private volatile long lastReceivedConnection = System.currentTimeMillis();
   private final Thread connectionThread;
   private final Icon pausedIcon = new ImageIcon(ChainsawIcons.PAUSE);
   private final Icon netConnectIcon =
     new ImageIcon(ChainsawIcons.ANIM_NET_CONNECT);
   private final NumberFormat nf = NumberFormat.getNumberInstance();
   private final Border statusBarComponentBorder =
     BorderFactory.createLineBorder(statusMsg.getBackground().darker());

   public ChainsawStatusBar() {
     setLayout(new GridBagLayout());

     nf.setMaximumFractionDigits(1);
     nf.setMinimumFractionDigits(1);
     nf.setGroupingUsed(false);

     JPanel statusMsgPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 2, 2));

     statusMsgPanel.add(statusMsg);
     statusMsgPanel.setBorder(statusBarComponentBorder);

     pausedLabel.setBorder(statusBarComponentBorder);
     pausedLabel.setMinimumSize(
       new Dimension(pausedIcon.getIconWidth(), pausedIcon.getIconHeight()));

     pausedLabel.setToolTipText(
       "Shows whether the current Log panel is paused or not");

     receivedEventLabel.setBorder(statusBarComponentBorder);
     receivedEventLabel.setToolTipText(
       "Indicates whether Chainsaw is receiving events, and how fast it is processing them");
     receivedEventLabel.setMinimumSize(
       new Dimension(
         receivedEventLabel.getFontMetrics(receivedEventLabel.getFont())
                           .stringWidth("9999.9/s") + 5,
         (int) receivedEventLabel.getPreferredSize().getHeight()));

 	eventCountLabel.setBorder(statusBarComponentBorder);
 	eventCountLabel.setToolTipText("<# viewable events>:<# total events>");
 	eventCountLabel.setMinimumSize(
 	new Dimension(
 	eventCountLabel.getFontMetrics(eventCountLabel.getFont())
 						.stringWidth("99999:99999") + 5,
 	  (int) eventCountLabel.getPreferredSize().getHeight()));

     receivedConnectionlabel.setBorder(statusBarComponentBorder);
     receivedConnectionlabel.setToolTipText(
       "Indicates whether Chainsaw has received a remote connection");
     receivedConnectionlabel.setMinimumSize(
       new Dimension(
         netConnectIcon.getIconWidth() + 4,
         (int) receivedConnectionlabel.getPreferredSize().getHeight()));

     lineSelectionLabel.setBorder(statusBarComponentBorder);
     lineSelectionLabel.setMinimumSize(
       new Dimension(
         lineSelectionLabel.getFontMetrics(lineSelectionLabel.getFont())
                           .stringWidth("999999"),
         (int) lineSelectionLabel.getPreferredSize().getHeight()));
     lineSelectionLabel.setToolTipText(
       "The current line # selected");

     JComponent[] toFix =
       new JComponent[] {
 		eventCountLabel,
         receivedConnectionlabel, lineSelectionLabel, receivedEventLabel,
         pausedLabel
       };

     for (int i = 0; i < toFix.length; i++) {
       toFix[i].setPreferredSize(toFix[i].getMinimumSize());
       toFix[i].setMaximumSize(toFix[i].getMinimumSize());
     }

     statusMsg.setMinimumSize(pausedLabel.getPreferredSize());
     statusMsg.setToolTipText("Shows messages from Chainsaw");

     GridBagConstraints c = new GridBagConstraints();
     c.insets = new Insets(2, 2, 2, 2);
     c.weightx = 1.0;
     c.weighty = 1.0;
     c.ipadx = 2;
     c.ipady = 2;
     c.gridx = 0;
     c.gridy = 0;
     c.fill = GridBagConstraints.BOTH;
     c.anchor = GridBagConstraints.WEST;

     add(statusMsgPanel, c);

     c.weightx = 0.0;
     c.weighty = 0.0;
     c.gridx = 1;
     add(receivedConnectionlabel, c);

 	c.weightx = 0.0;
 	c.weighty = 0.0;
 	c.gridx = 2;
 	add(lineSelectionLabel, c);

 	c.weightx = 0.0;
 	c.weighty = 0.0;
 	c.gridx = 3;
 	add(eventCountLabel, c);

     c.weightx = 0.0;
     c.weighty = 0.0;
     c.gridx = 4;
     add(receivedEventLabel, c);

     c.weightx = 0.0;
     c.weighty = 0.0;
     c.gridx = 5;

     add(pausedLabel, c);

     connectionThread =
       new Thread(
         new Runnable() {
           public void run() {
             while (true) {
               try {
                 Thread.sleep(DELAY_PERIOD);
               } catch (InterruptedException e) {
               }

               Icon icon = null;

               if (
                 (System.currentTimeMillis() - lastReceivedConnection) < DELAY_PERIOD) {
                 icon = netConnectIcon;
               }

               final Icon theIcon = icon;
               SwingUtilities.invokeLater(
                 new Runnable() {
                   public void run() {
                     receivedConnectionlabel.setIcon(theIcon);
                   }
                 });
             }
           }
         });
     connectionThread.start();
   }

   void setDataRate(final double dataRate) {
     SwingUtilities.invokeLater(
       new Runnable() {
         public void run() {
           receivedEventLabel.setText(nf.format(dataRate) + "/s");
         }
       });
   }

   /**
    * Indicates a new connection has been established between
    * Chainsaw and some remote host
    * @param source
    */
   void remoteConnectionReceived(String source) {
     lastReceivedConnection = System.currentTimeMillis();
     MessageCenter.getInstance().getLogger().info("Connection received from " + source);
     connectionThread.interrupt();

     //    TODO and maybe play a sound?
   }

   /**
    * Called when the paused state of the LogPanel has been updated
    * @param isPaused
    */
   void setPaused(final boolean isPaused) {
     Runnable runnable =
       new Runnable() {
         public void run() {
           pausedLabel.setIcon(isPaused ? pausedIcon : null);
           pausedLabel.setToolTipText(
             isPaused ? "This Log panel is currently paused"
                      : "This Log panel is not paused");
         }
       };

     SwingUtilities.invokeLater(runnable);
   }

   void setSelectedLine(
     final int selectedLine, final int lineCount, final int total) {
     SwingUtilities.invokeLater(
       new Runnable() {
         public void run() {
           lineSelectionLabel.setText(
             selectedLine+"");
 			eventCountLabel.setText(lineCount + ":" + total);
         }
       });
   }

   void setNothingSelected() {
     SwingUtilities.invokeLater(
       new Runnable() {
         public void run() {
           lineSelectionLabel.setText("");
         }
       });
   }

   void clear() {
     setMessage(DEFAULT_MSG);
     setNothingSelected();
     SwingUtilities.invokeLater(
       new Runnable() {
         public void run() {
           receivedEventLabel.setText("");
         }
       });
   }

   public void setMessage(final String msg) {
     SwingUtilities.invokeLater(
       new Runnable() {
         public void run() {
           statusMsg.setText(" " + msg);
         }
       });
   }
 }
	/*
	* Copyright 1999,2004 The Apache Software Foundation.
	*
	* 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.apache.log4j.chainsaw;

	import java.awt.Dimension;
	import java.awt.FlowLayout;
	import java.awt.GridBagConstraints;
	import java.awt.GridBagLayout;
	import java.awt.Insets;
	import java.text.NumberFormat;

	import javax.swing.BorderFactory;
	import javax.swing.Icon;
	import javax.swing.ImageIcon;
	import javax.swing.JComponent;
	import javax.swing.JLabel;
	import javax.swing.JPanel;
	import javax.swing.SwingConstants;
	import javax.swing.SwingUtilities;
	import javax.swing.border.Border;

	import org.apache.log4j.chainsaw.icons.ChainsawIcons;
	import org.apache.log4j.chainsaw.messages.MessageCenter;


	/**
	* A general purpose status bar for all Frame windows
	*
	* @author Paul Smith <psmith@apache.org>
	*
	*/
	public class ChainsawStatusBar extends JPanel {
	private static final int DELAY_PERIOD = 5000;
	private static final String DEFAULT_MSG = "Welcome to Chainsaw v2!";
	private final JLabel statusMsg = new JLabel(DEFAULT_MSG);
	private final JLabel pausedLabel = new JLabel("", SwingConstants.CENTER);
	private final JLabel lineSelectionLabel = new JLabel("", SwingConstants.CENTER);
	private final JLabel eventCountLabel = new JLabel("", SwingConstants.CENTER);
	private final JLabel receivedEventLabel = new JLabel("0.0", SwingConstants.CENTER);
	private final JLabel receivedConnectionlabel = new JLabel("", SwingConstants.CENTER);
	private volatile long lastReceivedConnection = System.currentTimeMillis();
	private final Thread connectionThread;
	private final Icon pausedIcon = new ImageIcon(ChainsawIcons.PAUSE);
	private final Icon netConnectIcon =
	new ImageIcon(ChainsawIcons.ANIM_NET_CONNECT);
	private final NumberFormat nf = NumberFormat.getNumberInstance();
	private final Border statusBarComponentBorder =
	BorderFactory.createLineBorder(statusMsg.getBackground().darker());

	public ChainsawStatusBar() {
	setLayout(new GridBagLayout());

	nf.setMaximumFractionDigits(1);
	nf.setMinimumFractionDigits(1);
	nf.setGroupingUsed(false);

	JPanel statusMsgPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 2, 2));

	statusMsgPanel.add(statusMsg);
	statusMsgPanel.setBorder(statusBarComponentBorder);

	pausedLabel.setBorder(statusBarComponentBorder);
	pausedLabel.setMinimumSize(
	new Dimension(pausedIcon.getIconWidth(), pausedIcon.getIconHeight()));

	pausedLabel.setToolTipText(
	"Shows whether the current Log panel is paused or not");

	receivedEventLabel.setBorder(statusBarComponentBorder);
	receivedEventLabel.setToolTipText(
	"Indicates whether Chainsaw is receiving events, and how fast it is processing them");
	receivedEventLabel.setMinimumSize(
	new Dimension(
	receivedEventLabel.getFontMetrics(receivedEventLabel.getFont())
	.stringWidth("9999.9/s") + 5,
	(int) receivedEventLabel.getPreferredSize().getHeight()));

	eventCountLabel.setBorder(statusBarComponentBorder);
	eventCountLabel.setToolTipText("<# viewable events>:<# total events>");
	eventCountLabel.setMinimumSize(
	new Dimension(
	eventCountLabel.getFontMetrics(eventCountLabel.getFont())
	.stringWidth("99999:99999") + 5,
	(int) eventCountLabel.getPreferredSize().getHeight()));

	receivedConnectionlabel.setBorder(statusBarComponentBorder);
	receivedConnectionlabel.setToolTipText(
	"Indicates whether Chainsaw has received a remote connection");
	receivedConnectionlabel.setMinimumSize(
	new Dimension(
	netConnectIcon.getIconWidth() + 4,
	(int) receivedConnectionlabel.getPreferredSize().getHeight()));

	lineSelectionLabel.setBorder(statusBarComponentBorder);
	lineSelectionLabel.setMinimumSize(
	new Dimension(
	lineSelectionLabel.getFontMetrics(lineSelectionLabel.getFont())
	.stringWidth("999999"),
	(int) lineSelectionLabel.getPreferredSize().getHeight()));
	lineSelectionLabel.setToolTipText(
	"The current line # selected");

	JComponent[] toFix =
	new JComponent[] {
	eventCountLabel,
	receivedConnectionlabel, lineSelectionLabel, receivedEventLabel,
	pausedLabel
	};

	for (int i = 0; i < toFix.length; i++) {
	toFix[i].setPreferredSize(toFix[i].getMinimumSize());
	toFix[i].setMaximumSize(toFix[i].getMinimumSize());
	}

	statusMsg.setMinimumSize(pausedLabel.getPreferredSize());
	statusMsg.setToolTipText("Shows messages from Chainsaw");

	GridBagConstraints c = new GridBagConstraints();
	c.insets = new Insets(2, 2, 2, 2);
	c.weightx = 1.0;
	c.weighty = 1.0;
	c.ipadx = 2;
	c.ipady = 2;
	c.gridx = 0;
	c.gridy = 0;
	c.fill = GridBagConstraints.BOTH;
	c.anchor = GridBagConstraints.WEST;

	add(statusMsgPanel, c);

	c.weightx = 0.0;
	c.weighty = 0.0;
	c.gridx = 1;
	add(receivedConnectionlabel, c);

	c.weightx = 0.0;
	c.weighty = 0.0;
	c.gridx = 2;
	add(lineSelectionLabel, c);

	c.weightx = 0.0;
	c.weighty = 0.0;
	c.gridx = 3;
	add(eventCountLabel, c);

	c.weightx = 0.0;
	c.weighty = 0.0;
	c.gridx = 4;
	add(receivedEventLabel, c);

	c.weightx = 0.0;
	c.weighty = 0.0;
	c.gridx = 5;

	add(pausedLabel, c);

	connectionThread =
	new Thread(
	new Runnable() {
	public void run() {
	while (true) {
	try {
	Thread.sleep(DELAY_PERIOD);
	} catch (InterruptedException e) {
	}

	Icon icon = null;

	if (
	(System.currentTimeMillis() - lastReceivedConnection) < DELAY_PERIOD) {
	icon = netConnectIcon;
	}

	final Icon theIcon = icon;
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	receivedConnectionlabel.setIcon(theIcon);
	}
	});
	}
	}
	});
	connectionThread.start();
	}

	void setDataRate(final double dataRate) {
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	receivedEventLabel.setText(nf.format(dataRate) + "/s");
	}
	});
	}

	/**
	* Indicates a new connection has been established between
	* Chainsaw and some remote host
	* @param source
	*/
	void remoteConnectionReceived(String source) {
	lastReceivedConnection = System.currentTimeMillis();
	MessageCenter.getInstance().getLogger().info("Connection received from " + source);
	connectionThread.interrupt();

	// TODO and maybe play a sound?
	}

	/**
	* Called when the paused state of the LogPanel has been updated
	* @param isPaused
	*/
	void setPaused(final boolean isPaused) {
	Runnable runnable =
	new Runnable() {
	public void run() {
	pausedLabel.setIcon(isPaused ? pausedIcon : null);
	pausedLabel.setToolTipText(
	isPaused ? "This Log panel is currently paused"
	: "This Log panel is not paused");
	}
	};

	SwingUtilities.invokeLater(runnable);
	}

	void setSelectedLine(
	final int selectedLine, final int lineCount, final int total) {
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	lineSelectionLabel.setText(
	selectedLine+"");
	eventCountLabel.setText(lineCount + ":" + total);
	}
	});
	}

	void setNothingSelected() {
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	lineSelectionLabel.setText("");
	}
	});
	}

	void clear() {
	setMessage(DEFAULT_MSG);
	setNothingSelected();
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	receivedEventLabel.setText("");
	}
	});
	}

	public void setMessage(final String msg) {
	SwingUtilities.invokeLater(
	new Runnable() {
	public void run() {
	statusMsg.setText(" " + msg);
	}
	});
	}
	}