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1
4 package com.tc.admin;
5
6 import com.tc.admin.common.XTextPane;
7 import com.tc.management.beans.L2MBeanNames;
8
9 import java.io.PrintWriter  ;
10 import java.io.StringWriter ;
11
12 import javax.management.Notification ;
13 import javax.management.NotificationListener ;
14 import javax.management.ObjectName ;
15 import javax.swing.Icon ;
16 import javax.swing.text.AttributeSet ;
17 import javax.swing.text.BadLocationException ;
18 import javax.swing.text.SimpleAttributeSet ;
19 import javax.swing.text.StyleConstants ;
20 import javax.swing.text.StyledDocument ;
21
22 public class ServerLog extends XTextPane {
23 private ConnectionContext m_cc;
24 private ObjectName m_logger;
25 private LogListener m_logListener;
26 private Icon m_errorIcon;
27 private Icon m_warnIcon;
28 private Icon m_infoIcon;
29 private Icon m_blankIcon;
30 private SimpleAttributeSet m_errorIconAttrSet;
31 private SimpleAttributeSet m_warnIconAttrSet;
32 private SimpleAttributeSet m_infoIconAttrSet;
33 private SimpleAttributeSet m_blankIconAttrSet;
34
35 private static final String LOG_ERROR = AdminClient.getContext().getMessage("log.error");
36
37 private static final String LOG_WARN = AdminClient.getContext().getMessage("log.warn");
38
39 private static final String LOG_INFO = AdminClient.getContext().getMessage("log.info");
40
41 private static final int DEFAULT_MAX_LOG_LINES = 1000;
42
43 private static int MAX_LOG_LINES = Integer.getInteger("com.tc.admin.ServerLog.maxLines",
44 DEFAULT_MAX_LOG_LINES).intValue();
45
46 public ServerLog(ConnectionContext cc) {
47 super();
48
49 m_cc = cc;
50 m_logListener = new LogListener();
51 m_errorIcon = LogHelper.getHelper().getErrorIcon();
52 m_warnIcon = LogHelper.getHelper().getWarningIcon();
53 m_infoIcon = LogHelper.getHelper().getInfoIcon();
54 m_blankIcon = LogHelper.getHelper().getBlankIcon();
55
56 m_errorIconAttrSet = new SimpleAttributeSet ();
57 StyleConstants.setIcon(m_errorIconAttrSet, m_errorIcon);
58
59 m_warnIconAttrSet = new SimpleAttributeSet ();
60 StyleConstants.setIcon(m_warnIconAttrSet, m_warnIcon);
61
62 m_infoIconAttrSet = new SimpleAttributeSet ();
63 StyleConstants.setIcon(m_infoIconAttrSet, m_infoIcon);
64
65 m_blankIconAttrSet = new SimpleAttributeSet ();
66 StyleConstants.setIcon(m_blankIconAttrSet, m_blankIcon);
67
68 try {
69 m_logger = m_cc.queryName(L2MBeanNames.LOGGER.getCanonicalName());
70 m_cc.addNotificationListener(m_logger, m_logListener);
71 } catch (Exception e) {
72 AdminClient.getContext().log(e);
73 }
74
75 setEditable(false);
76 }
77
78 public ConnectionContext getConnectionContext() {
79 return m_cc;
80 }
81
82 class LogListener implements NotificationListener {
83 public void handleNotification(Notification notice, Object handback) {
84 log(notice.getMessage());
85 }
86 }
87
88 public void log(Exception e) {
89 StringWriter sw = new StringWriter ();
90 PrintWriter pw = new PrintWriter (sw);
91
92 e.printStackTrace(pw);
93 pw.close();
94
95 log(sw.toString());
96 }
97
98 public void append(String s) {
99 StyledDocument doc = (StyledDocument ) getDocument();
100
101 try {
102 int length = doc.getLength();
103 AttributeSet iconAttrSet = m_blankIconAttrSet;
104
105 if (s.indexOf(LOG_ERROR) != -1) {
106 iconAttrSet = m_errorIconAttrSet;
107 } else if (s.indexOf(LOG_WARN) != -1) {
108 iconAttrSet = m_warnIconAttrSet;
109 } else if (s.indexOf(LOG_INFO) != -1) {
110 iconAttrSet = m_infoIconAttrSet;
111 }
112
113 appendToLog(doc, length, " ", iconAttrSet);
114 length++;
115
116 appendToLog(doc, length, s, null);
117 } catch (BadLocationException e) {
118 }
119 }
120
121 private void appendToLog(StyledDocument doc, int offset, String s, AttributeSet attrSet) throws BadLocationException {
122 doc.insertString(offset, s, attrSet);
123
124 if (MAX_LOG_LINES > 0) {
125 int lineCount;
126 int length = doc.getLength();
127
128 s = doc.getText(0, length);
129
130 if ((lineCount = lineCount(s)) > MAX_LOG_LINES) {
131 int lines = lineCount - MAX_LOG_LINES;
132
133 offset = 0;
134
135 for (int i = 0; i < lines; i++) {
136 offset = s.indexOf(NEWLINE, offset);
137 offset++;
138 }
139
140 doc.remove(0, offset);
141 }
142 }
143 }
144
145 private static final char NEWLINE = '\n';
146
147 private static int lineCount(String s) {
148 int result = 0;
149 int offset = 0;
150
151 if (s != null && s.length() > 0) {
152 while ((offset = s.indexOf(NEWLINE, offset)) != -1) {
153 result++;
154 offset++;
155 }
156 }
157
158 return result;
159 }
160
161 public void log(String s) {
162 append(s);
163 setCaretPosition(getDocument().getLength() - 1);
164 }
165 }
166 |
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