Author: ravn
Date: Sat Oct 4 00:49:33 2008
New Revision: 1182
Modified:
slf4j/trunk/slf4j-ext/src/main/java/org/slf4j/instrumentation/LogTransformer.java
Log:
added log level option, default=info
Modified:
slf4j/trunk/slf4j-ext/src/main/java/org/slf4j/instrumentation/LogTransformer.java
==============================================================================
---
slf4j/trunk/slf4j-ext/src/main/java/org/slf4j/instrumentation/LogTransformer.java
(original)
+++
slf4j/trunk/slf4j-ext/src/main/java/org/slf4j/instrumentation/LogTransformer.java
Sat Oct 4 00:49:33 2008
@@ -77,20 +77,42 @@
verbose = b;
return this;
}
-
- String[] ignore = { "sun/", "java/", "javax/", "org/slf4j/",
- "ch/qos/logback/" , "org/apache/log4j/"};
+
+ String[] ignore = { "sun/", "java/", "javax/", "org/slf4j/",
+ "ch/qos/logback/", "org/apache/log4j/" };
+
public Builder ignore(String[] strings) {
this.ignore = strings;
return this;
}
+
+ private String level = "info";
+
+ public Builder level(String level) {
+ level = level.toLowerCase();
+ if (level.equals("info") || level.equals("debug")
+ || level.equals("trace")) {
+ this.level = level;
+ } else {
+ if (verbose) {
+ System.err.println("level not
info/debug/trace : " + level);
+ }
+ }
+ return this;
+ }
}
+ private String level;
+ private String levelEnabled;
+
private LogTransformer(Builder builder) {
this.addEntryExit = builder.addEntryExit;
this.addVariableAssignment = builder.addVariableAssignment;
this.verbose = builder.verbose;
this.ignore = builder.ignore;
+ this.level = builder.level;
+ this.levelEnabled = "is" + builder.level.substring(0,
1).toUpperCase()
+ + builder.level.substring(1) + "Enabled";
}
private static final String _LOG = "_log";
@@ -102,7 +124,6 @@
public byte[] transform(ClassLoader loader, String className,
Class<?> clazz, ProtectionDomain domain, byte[] bytes) {
-
try {
return transform0(className, clazz, bytes);
@@ -182,6 +203,7 @@
} catch (Exception e) {
String pattern = "Could not instrument {}, exception :
{}";
System.err.println(format(pattern, name,
e.getMessage()));
+ e.printStackTrace(System.err);
} finally {
if (cl != null) {
cl.detach();
@@ -197,14 +219,16 @@
String returnValue = JavassistHelper.returnValue(method);
if (addEntryExit) {
- String messagePattern = "if ({}.isDebugEnabled())
{}.info(\">> {}\");";
- Object[] arg1 = new Object[] { _LOG, _LOG, signature };
+ String messagePattern = "if ({}.{}()) {}.{}(\">>
{}\");";
+ Object[] arg1 = new Object[] { _LOG, levelEnabled,
_LOG, level,
+ signature };
String before =
MessageFormatter.arrayFormat(messagePattern, arg1);
//System.out.println(before);
method.insertBefore(before);
- String messagePattern2 = "if ({}.isDebugEnabled())
{}.info(\"<< {}{}\");";
- Object[] arg2 = new Object[] { _LOG, _LOG, signature,
returnValue };
+ String messagePattern2 = "if ({}.{}()) {}.{}(\"<<
{}{}\");";
+ Object[] arg2 = new Object[] { _LOG, levelEnabled,
_LOG, level,
+ signature, returnValue };
String after =
MessageFormatter.arrayFormat(messagePattern2, arg2);
//System.out.println(after);
method.insertAfter(after);
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