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tdb |
1.10 |
/* |
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* i-scream central monitoring system |
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tdb |
1.11 |
* http://www.i-scream.org.uk |
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tdb |
1.10 |
* Copyright (C) 2000-2002 i-scream |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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ajm |
1.1 |
//---PACKAGE DECLARATION--- |
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tdb |
1.9 |
package uk.org.iscream.cms.server.core.loggers; |
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ajm |
1.1 |
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//---IMPORTS--- |
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tdb |
1.12 |
import uk.org.iscream.cms.util.*; |
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tdb |
1.9 |
import uk.org.iscream.cms.server.core.*; |
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ajm |
1.1 |
import java.util.Date; |
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import java.text.DateFormat; |
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import java.util.Locale; |
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import javax.swing.*; |
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ajm |
1.2 |
import javax.swing.border.*; |
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import java.awt.Color; |
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ajm |
1.1 |
|
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/** |
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ajm |
1.5 |
* The SimpleSwingLogger is an implementation of the LoggerImpl defined |
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ajm |
1.1 |
* in the associated interface. It's only purpose is to simply print |
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* all the logging information it receives to a window frame. |
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* |
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* All very simple really... |
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* |
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ajm |
1.5 |
* This class does have the problem that if too many messages are |
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* entered into the text area, then it will fill the memory of |
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* the JVM. This MAY have been fixed by adding the setRows(int) |
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* in the write(string) method, however the Java API does not |
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* specify if this enforces the max rows, but I THINK it does. |
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* |
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tdb |
1.10 |
* @author $Author: tdb $ |
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tdb |
1.13 |
* @version $Id: SimpleSwingLogger.java,v 1.12 2003/02/05 16:43:47 tdb Exp $ |
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ajm |
1.1 |
*/ |
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ajm |
1.4 |
public class SimpleSwingLogger extends JFrame implements LoggerImpl { |
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ajm |
1.1 |
|
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//---FINAL ATTRIBUTES--- |
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/** |
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* The current CVS revision of this class |
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*/ |
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tdb |
1.13 |
public final String REVISION = "$Revision: 1.12 $"; |
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ajm |
1.1 |
|
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ajm |
1.2 |
private final int width = 700; |
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private final int height = 400; |
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ajm |
1.1 |
//---STATIC METHODS--- |
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//---CONSTRUCTORS--- |
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/** |
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ajm |
1.2 |
* Creates a new Simple Swing Logger. |
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ajm |
1.1 |
*/ |
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ajm |
1.2 |
public SimpleSwingLogger() { |
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tdb |
1.9 |
_maxMessages = Integer.parseInt(System.getProperty("uk.org.iscream.cms.server.LoggerClass.SimpleSwingLogger.maxMessages")); |
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ajm |
1.2 |
System.out.println(this.toString() + ": opening window"); |
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// set up the Frame |
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setTitle("I-Scream Logger"); |
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setSize(width, height); |
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getContentPane().setBackground(Color.white); |
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setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); |
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Box box = Box.createVerticalBox(); |
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// create the i-scream logo at the top |
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tdb |
1.13 |
JLabel iscream = new JLabel(new ImageIcon(getClass().getResource("/uk/org/iscream/cms/server/core/loggers/i-scream.gif"))); |
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JLabel comment = new JLabel(" i-scream System Logging Console"); |
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ajm |
1.3 |
comment.setForeground( new Color(0, 0, 102)); |
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ajm |
1.2 |
iscream.setBackground(Color.white); |
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ajm |
1.3 |
comment.setBackground(Color.white); |
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ajm |
1.2 |
Box header = Box.createHorizontalBox(); |
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ajm |
1.3 |
header.add(comment); |
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ajm |
1.2 |
header.add(Box.createHorizontalGlue()); |
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header.add(iscream); |
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// set up the text area |
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_textArea.setEditable(false); |
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JScrollPane text = new JScrollPane(_textArea); |
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text.setBorder(new TitledBorder(new LineBorder(new Color(0, 0, 102)), " Messages ")); |
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text.setBackground(Color.white); |
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// build the frame |
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box.add(header); |
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box.add(text); |
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getContentPane().add(box); |
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// show the window |
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show(); |
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ajm |
1.5 |
write(toString(), Logger.SYSINIT, "started"); |
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ajm |
1.1 |
} |
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//---PUBLIC METHODS--- |
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/** |
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tdb |
1.7 |
* The write() method takes a line of text, pre-formatted |
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* and outputs it using a method defined by the actual |
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* implementation. The verbosity is given in case the |
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* implementation wishes to utilise it in the layout - |
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* eg. a different colour or font. |
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* |
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* This instance writes the line to a Swing based GUI |
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* logger. |
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* |
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* @param line A line of formatted text to be logged |
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* @param verbosity the verbosity of this message |
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*/ |
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tdb |
1.6 |
public synchronized void write(String line, int verbosity) { |
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_textArea.insert(line + "\n",0); |
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_textArea.setRows(_maxMessages); |
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ajm |
1.1 |
} |
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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tdb |
1.12 |
* This uses the uk.org.iscream.cms.util.FormatName class |
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ajm |
1.5 |
* to format the toString() |
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* |
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ajm |
1.1 |
* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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ajm |
1.5 |
return FormatName.getName( |
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_name, |
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getClass().getName(), |
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REVISION); |
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ajm |
1.1 |
} |
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ajm |
1.5 |
|
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ajm |
1.1 |
//---PRIVATE METHODS--- |
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tdb |
1.7 |
/** |
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* This method is provided if this class wishes to log |
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* a message itself. |
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* |
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* @param source A String representation of the source |
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* @param verbosity the verbosity of this message |
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* @param message The message to log |
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*/ |
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tdb |
1.6 |
private void write(String source, int verbosity, String message) { |
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write(FormatName.formatLogLine(source, verbosity, message), verbosity); |
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ajm |
1.1 |
} |
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//---ACCESSOR/MUTATOR METHODS--- |
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159 |
ajm |
1.2 |
//---ATTRIBUTES--- |
160 |
ajm |
1.1 |
|
161 |
ajm |
1.2 |
/** |
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* A text area to write log messages to |
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*/ |
164 |
ajm |
1.1 |
private JTextArea _textArea = new JTextArea(); |
165 |
ajm |
1.5 |
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/** |
167 |
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* The maximum number of messages that can |
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* be displayed before bottom items are removed. |
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* This is needed to fix the memory overload problem |
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* that was seen when the GUI got too full! |
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*/ |
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private int _maxMessages; |
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/** |
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* This is the friendly identifier of the |
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* component this class is running in. |
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* eg, a Filter may be called "filter1", |
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* If this class does not have an owning |
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* component, a name from the configuration |
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* can be placed here. This name could also |
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* be changed to null for utility classes. |
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*/ |
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private String _name = Core.NAME; |
184 |
ajm |
1.1 |
|
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//---STATIC ATTRIBUTES--- |
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187 |
tdb |
1.12 |
} |