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1
16
17
18 package org.apache.log4j.gui;
19
20 import org.apache.log4j.helpers.CyclicBuffer;
21 import org.apache.log4j.helpers.LogLog;
22 import org.apache.log4j.Priority;
23 import org.apache.log4j.Category;
24 import org.apache.log4j.Layout;
25 import org.apache.log4j.PatternLayout;
26 import org.apache.log4j.spi.LoggingEvent;
27
28 import javax.swing.JList  ;
29 import javax.swing.AbstractListModel ;
30 import javax.swing.JFrame ;
31 import javax.swing.JButton ;
32 import javax.swing.JLabel ;
33 import javax.swing.JTable ;
34 import javax.swing.JTextArea ;
35 import javax.swing.table.AbstractTableModel ;
36 import javax.swing.table.TableCellRenderer ;
37 import javax.swing.JScrollPane ;
38 import javax.swing.ListCellRenderer ;
39 import java.awt.Component ;
40 import java.awt.FlowLayout ;
41 import javax.swing.BoxLayout ;
42
43 import java.awt.BorderLayout ;
44 import java.awt.Dimension ;
45 import java.awt.event.ActionListener ;
46 import java.awt.event.ActionEvent ;
47 import java.awt.Container ;
48 import javax.swing.ImageIcon ;
49 import java.awt.Image ;
50 import java.awt.Toolkit ;
51 import java.net.URL ;
52 import java.awt.Rectangle ;
53
54 public class JTableAppender extends JTable {
55
56
57 static Category cat = Category.getInstance(JTableAppender.class.getName());
58
59 PatternLayout layout;
60
61 public
62 JTableAppender() {
63 layout = new PatternLayout("%r %p %c [%t] - %m");
64 this.setDefaultRenderer(Object .class, new Renderer ());
65
66 }
67
68 public
69 void add(LoggingEvent event) {
70 ((JTableAppenderModel)getModel()).add(event);
71 }
72
73 public
74 Dimension getPreferredSize() {
75 System.out.println("getPreferredSize() called");
76 return super.getPreferredSize();
77 }
78
79 static public void main(String [] args) {
80
81 JFrame frame = new JFrame ("JListView test");
82 Container container = frame.getContentPane();
83
84 JTableAppender appender = new JTableAppender();
85
86 JTableAppenderModel model = new
87 JTableAppenderModel(Integer.parseInt(args[0]));
88 appender.setModel(model);
89
91
92 JScrollPane sp = new JScrollPane (appender);
93 sp.setPreferredSize(new Dimension (250, 80));
94
95 container.setLayout(new BoxLayout (container, BoxLayout.X_AXIS));
96 container.add(sp);
98
99 JButton button = new JButton ("ADD");
100 container.add(button);
101
102
103 button.addActionListener(new JTableAddAction(appender));
104
105 frame.setVisible(true);
106 frame.setSize(new Dimension (700,700));
107
108 long before = System.currentTimeMillis();
109
110 int RUN = 10000;
111 int i = 0;
112 while(i++ < RUN) {
113 LoggingEvent event = new LoggingEvent("x", cat, Priority.ERROR,
114 "Message "+i, null);
115 event.getThreadName();
116 if(i % 10 == 0) {
117 }
119 appender.add(event);
120 }
121
122 long after = System.currentTimeMillis();
123 System.out.println("Time taken :"+ ((after-before)*1000/RUN));
124
125 }
126
127 class Renderer extends JTextArea implements TableCellRenderer {
128
129 Object o = new Object ();
130 int i = 0;
131
132 public
133 Renderer() {
134 System.out.println("Render() called ----------------------");
135 }
136
137 public Component getTableCellRendererComponent(JTable table,
138 Object value,
139 boolean isSelected,
140 boolean hasFocus,
141 int row,
142 int column) {
143
144 System.out.println(o + " ============== " + i++);
145 if(value instanceof LoggingEvent) {
148 LoggingEvent event = (LoggingEvent) value;
149 String str = layout.format(event);
150 String t = event.getThrowableInformation();
151
152 if(t != null) {
153 System.out.println("eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
154 setText(str + Layout.LINE_SEP + t);
155 } else {
156 setText(str);
157 }
158
159 } else {
160 setText(value.toString());
161 }
162
163
164 return this;
165 }
166 }
167 }
168
169
170
171 class JTableAppenderModel extends AbstractTableModel {
172
173 CyclicBuffer cb;
174
175 JTableAppenderModel(int size) {
176 cb = new CyclicBuffer(size);
177 }
178
179 public
180 void add(LoggingEvent event) {
181 cb.add(event);
183 int j = cb.length();
184
185 fireTableDataChanged();
186
187 }
188 public
189 int getColumnCount() {
190 return 1;
191 }
192
193 public int getRowCount() {
194 return cb.length();
195 }
196
197
203 public
204 Object getValueAt(int row, int col) {
205 return cb.get(row);
206 }
207 }
208
209
210 class JTableAddAction implements ActionListener {
211
212 int j;
213 JTableAppender appender;
214
215 Category cat = Category.getInstance("x");
216
217 public
218 JTableAddAction(JTableAppender appender) {
219 this.appender = appender;
220 j = 0;
221 }
222
223 public
224 void actionPerformed(ActionEvent e) {
225 System.out.println("Action occured");
226
227 LoggingEvent event = new LoggingEvent("x", cat, Priority.DEBUG,
228 "Message "+j, null);
229
230 if(j % 5 == 0) {
231 }
233 j++;
234 appender.add(event);
235 }
236 }
237 |
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