http://bugzilla.slf4j.org/show_bug.cgi?id=132
Robert Elliot <rob...@teviotia.co.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #58|Second patch with better |Inlined - note, cannot use
description|implementation |Collections.list(Enumeration
| |e) as it is not in Java 1.3.
--- Comment #4 from Robert Elliot <rob...@teviotia.co.uk> 2009-05-13 22:30:16
---
(From update of attachment 58)
><HTML><HEAD/><BODY linkifying="false" linkified="0"
>linkifytime="12"><PRE>Index: src/main/java/org/slf4j/LoggerFactory.java
>===================================================================
>--- src/main/java/org/slf4j/LoggerFactory.java (revision 1331)
>+++ src/main/java/org/slf4j/LoggerFactory.java (working copy)
>@@ -24,8 +24,14 @@
>
> package org.slf4j;
>
>+import java.io.File;
>+import java.io.IOException;
>+import java.net.URL;
>+import java.util.ArrayList;
> import java.util.Arrays;
>+import java.util.Enumeration;
> import java.util.List;
>+import java.util.zip.ZipFile;
>
> import org.slf4j.helpers.SubstituteLoggerFactory;
> import org.slf4j.helpers.Util;
>@@ -105,6 +111,25 @@
> private final static void performInitialization() {
> bind();
> versionSanityCheck();
>+ onlyOneImplementationSanityCheck();
>+ }
>+
>+ private static String staticLoggerBinderPath =
>StaticLoggerBinder.class.getName().replace('.', File.separatorChar) + ".class";
>+
>+ private static void onlyOneImplementationSanityCheck() {
>+ try {
>+ Enumeration paths =
>LoggerFactory.class.getClassLoader().getResources(staticLoggerBinderPath);
>+ List implementations = new ArrayList();
>+ while (paths.hasMoreElements()) {
>+ implementations.add(paths.nextElement());
>+ }
>+ if (implementations.size() > 1) {
>+ throw new IllegalStateException("ClassPath contains more than one
>SLF4J implementation: " + implementations);
>+ }
>+ } catch (IOException ioe) {
>+ Util.reportFailure("Error getting resources from path", ioe);
>+ }
> }
>
> private final static void bind() {
--
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