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20 package org.apache.mina.util;
21
22 import org.apache.mina.common.IoSession;
23 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
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36 public class SessionLog {
37
38
39
40 public static final String PREFIX = SessionLog.class.getName() + ".prefix";
41
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44
45 public static final String LOGGER = SessionLog.class.getName() + ".logger";
46
47 private static Class getClass(IoSession session) {
48 return session.getHandler().getClass();
49 }
50
51 public static void debug(IoSession session, String message) {
52 Logger log = getLogger(session);
53 if (log.isDebugEnabled()) {
54 log.debug(String.valueOf(session.getAttribute(PREFIX)) + message);
55 }
56 }
57
58 public static void debug(IoSession session, String message, Throwable cause) {
59 Logger log = getLogger(session);
60 if (log.isDebugEnabled()) {
61 log.debug(String.valueOf(session.getAttribute(PREFIX)) + message,
62 cause);
63 }
64 }
65
66 public static void info(IoSession session, String message) {
67 Logger log = getLogger(session);
68 if (log.isInfoEnabled()) {
69 log.info(String.valueOf(session.getAttribute(PREFIX)) + message);
70 }
71 }
72
73 public static void info(IoSession session, String message, Throwable cause) {
74 Logger log = getLogger(session);
75 if (log.isInfoEnabled()) {
76 log.info(String.valueOf(session.getAttribute(PREFIX)) + message,
77 cause);
78 }
79 }
80
81 public static void warn(IoSession session, String message) {
82 Logger log = getLogger(session);
83 if (log.isWarnEnabled()) {
84 log.warn(String.valueOf(session.getAttribute(PREFIX)) + message);
85 }
86 }
87
88 public static void warn(IoSession session, String message, Throwable cause) {
89 Logger log = getLogger(session);
90 if (log.isWarnEnabled()) {
91 log.warn(String.valueOf(session.getAttribute(PREFIX)) + message,
92 cause);
93 }
94 }
95
96 public static void error(IoSession session, String message) {
97 Logger log = getLogger(session);
98 if (log.isErrorEnabled()) {
99 log.error(String.valueOf(session.getAttribute(PREFIX)) + message);
100 }
101 }
102
103 public static void error(IoSession session, String message, Throwable cause) {
104 Logger log = getLogger(session);
105 if (log.isErrorEnabled()) {
106 log.error(String.valueOf(session.getAttribute(PREFIX)) + message,
107 cause);
108 }
109 }
110
111 public static boolean isDebugEnabled(IoSession session) {
112 return getLogger(session).isDebugEnabled();
113 }
114
115 public static boolean isInfoEnabled(IoSession session) {
116 return getLogger(session).isInfoEnabled();
117 }
118
119 public static boolean isWarnEnabled(IoSession session) {
120 return getLogger(session).isWarnEnabled();
121 }
122
123 public static boolean isErrorEnabled(IoSession session) {
124 return getLogger(session).isErrorEnabled();
125 }
126
127 private static Logger getLogger(IoSession session) {
128 Logger log = (Logger) session.getAttribute(LOGGER);
129 if (log == null) {
130 log = LoggerFactory.getLogger(getClass(session));
131 String prefix = (String) session.getAttribute(PREFIX);
132 if (prefix == null) {
133 prefix = "[" + session.getRemoteAddress() + "] ";
134 session.setAttribute(PREFIX, prefix);
135 }
136
137 session.setAttribute(LOGGER, log);
138 }
139
140 return log;
141 }
142 }