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1 package com.ibatis.common.logging;
2
3 import java.lang.reflect.Constructor  ;
4
5 public class LogFactory {
6
7 private static Constructor logConstructor;
8
9 static {
10 tryImplementation("org.apache.commons.logging.LogFactory", "com.ibatis.common.logging.jakarta.JakartaCommonsLoggingImpl");
11 tryImplementation("org.apache.log4j.Logger", "com.ibatis.common.logging.log4j.Log4jImpl");
12 tryImplementation("java.util.logging.Logger", "com.ibatis.common.logging.jdk14.Jdk14LoggingImpl");
13 tryImplementation("java.lang.Object", "com.ibatis.common.logging.nologging.NoLoggingImpl");
14 }
15
16 private static void tryImplementation(String testClassName, String implClassName) {
17 if (logConstructor == null) {
18 try {
19 Class.forName(testClassName);
20 Class implClass = Class.forName(implClassName);
21 logConstructor = implClass.getConstructor(new Class []{Class .class});
22 } catch (Throwable t) {
23 }
24 }
25 }
26
27 public static Log getLog(Class aClass) {
28 try {
29 return (Log)logConstructor.newInstance(new Object []{aClass});
30 } catch (Throwable t) {
31 throw new RuntimeException ("Error creating logger for class " + aClass + ". Cause: " + t, t);
32 }
33 }
34
35 }
36 |
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