November 2009 - slf4j-dev - mailman3.qos.ch

[Fwd: SLF4J on the Google Android Platform]
by Ceki Gülcü 01 Dec '09

01 Dec '09

Forwarding with permission by Thorsten > Hi Ceki, > > finally, I had some time during the last days to do remaining steps > for a first "official" release. > > First, I created a small Web page as a documentation. I took the Web > page of the sub project "slf4j-taglib" as a starting point. Meanwhile > I have rsynced the html page file plus the slf4j-android-1.5.8.jar > file with the server as described by you. And my intuition was right > :-) I can already access the page via http://www.slf4j.org/android > Could you please check if everything is conforming to the SLF4J > quality/style/formal... criteria. > > Second, I signed the CLA and you should receive a letter (via snail > mail) in the next days. > > So almost everything is prepared for the first final release. What > should be done is to add a link to the main menu on the web site - I > suggest to add a link named "slf4j-android" to the "Sub-projects" > section. > > One last thing: I would prefer to have the source code in the "main" > repository, i.e., not the fork created by me. Reason: have everything > in one place. Do you think that this would be possible (in the medium > term)? > > Cheers, > Thorsten

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release 1.5.10?
by Ceki Gülcü 30 Nov '09

30 Nov '09

Hello all, Given the feedback received on 1.5.9.RC1 and the recent OSGi related commits, I propose to release SLF4J 1.5.10. What do you think? -- Ceki

2 1

branch, master, updated. v1.5.9.RC1-8-g9f25dd7
by git-noreply＠pixie.qos.ch 30 Nov '09

30 Nov '09

The branch, master has been updated via 9f25dd7f5ceef38015ca93b49d90f3bc5d788644 (commit) from 19fc29d089340cb27c541db2b77dc7b7a991cbec (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=slf4j.git;a=commit;h=9f25dd7f5ceef38015ca93b49d… http://github.com/ceki/slf4j/commit/9f25dd7f5ceef38015ca93b49d90f3bc5d788644 commit 9f25dd7f5ceef38015ca93b49d90f3bc5d788644 Author: Ceki Gulcu <ceki(a)qos.ch> Date: Mon Nov 30 10:05:48 2009 +0100 - added links to new articles in the documentation diff --git a/slf4j-site/src/site/pages/docs.html b/slf4j-site/src/site/pages/docs.html index d4ec319..c7d4eb9 100644 --- a/slf4j-site/src/site/pages/docs.html +++ b/slf4j-site/src/site/pages/docs.html @@ -49,6 +49,10 @@ Logger Plug-ins for RCP Applications</a>, by John J. Franey </li> + + <li><a href="http://blog.frankel.ch/tech/dev/java/thoughts-on-java-logging-and-slf4j">Thoughts on Java logging and SLF4J</a> by Nicolas Frankel + </li> + <li><a href="http://glauche.de/2009/08/24/logging-with-slf4j-and-guice/">Logging with SLF4J and Guice</a>, by Michael Glauche @@ -85,8 +89,20 @@ Soapbox for SLF4J</a>, by Bruce Snyder </li> + <li><a + href="http://sharein.com/shares/111630-a-java-geek-thoughts-on-java-logging-and-s…">Logging: + should I wrap?</a> by Chris Wong + </li> </ul> + <h4>In french</h4> + + <ul> + <li><a + href="http://www.insideit.fr/post/2009/11/23/SLF4J-LOGBack">SLF4J + & LOGBack : simplifiez-vous les logs</a> by Ludovic Meurillon + </li> + </ul> <h2>Conferences</h2> ----------------------------------------------------------------------- Summary of changes: slf4j-site/src/site/pages/docs.html | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) hooks/post-receive -- SLF4J: Simple Logging Facade for Java

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branch, master, updated. v1.5.9.RC1-7-g19fc29d
by git-noreply＠pixie.qos.ch 28 Nov '09

28 Nov '09

The branch, master has been updated via 19fc29d089340cb27c541db2b77dc7b7a991cbec (commit) from bd6f4a930aa5fed314d3fc54f39a283103551b6d (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://git.qos.ch/gitweb/?p=slf4j.git;a=commit;h=19fc29d089340cb27c541db2b7… http://github.com/ceki/slf4j/commit/19fc29d089340cb27c541db2b77dc7b7a991cbec commit 19fc29d089340cb27c541db2b77dc7b7a991cbec Author: Ceki Gulcu <ceki(a)qos.ch> Date: Sat Nov 28 19:35:28 2009 +0100 - added unit tests verifying that the slf4j artifacts can actually be used by other osgi bundles within a real osgi framework. The tests depend on Felix. diff --git a/.gitignore b/.gitignore index 9539fb5..ebc44e1 100644 --- a/.gitignore +++ b/.gitignore @@ -2,4 +2,6 @@ target .classpath .project -*~ \ No newline at end of file +*~ +integration/bundle/ +integration/felix-cache/ \ No newline at end of file diff --git a/integration/build.xml b/integration/build.xml index a73f9bf..cc54949 100644 --- a/integration/build.xml +++ b/integration/build.xml @@ -47,7 +47,8 @@  - <taskdef name="junit" classpath="${plugin_classpath};${compile_classpath}" classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask" /> + <taskdef name="junit" classpath="${plugin_classpath};${compile_classpath}" + classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask" /> <target name="init"> <mkdir dir="target/unit-reports" /> diff --git a/integration/osgi-build.xml b/integration/osgi-build.xml new file mode 100644 index 0000000..00f59f7 --- /dev/null +++ b/integration/osgi-build.xml @@ -0,0 +1,92 @@ +<project name="osgi-test" default="testAll"> + +  + + <echo message="compile classpath: ${currentVersion}" /> + <echo message="test classpath: ${test_classpath}" /> + <echo message="basedir: ${basedir}" /> + + <property name="iBundleJar" value="target/iBundle.jar"/> + <property name="bundlesDir" value="bundle"/> + + +  + <taskdef name="junit" classpath="${test_classpath}" + classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask" /> + + <path id="minimal"> + <pathelement location="target/test-classes/" /> + </path > + + <target name="init"> + <mkdir dir="target/unit-reports" /> + </target> + + <target name="createIBundle"> + <mkdir dir="${bundlesDir}"/> + <jar destFile="${iBundleJar}" + manifest="src/IBUNDLE-META-INF/MANIFEST.MF" + basedir="target/test-classes/" + includes="integrator/**.class"/> + + </target> + + <target name="testAll" depends="init, createIBundle, nop, simple, jdk14"> + </target> + + + <macrodef name="prepareOSGiHarness"> + <attribute name="binding"/> + <sequential> + <delete> + <fileset dir="${bundlesDir}" includes="*.jar"/> + </delete> + <copy file="${iBundleJar}" todir="${bundlesDir}"/> + <copy file="../slf4j-api/target/slf4j-api-${currentVersion}.jar" todir="${bundlesDir}"/> + <copy file="../slf4j-@{binding}/target/slf4j-@{binding}-${currentVersion}.jar" todir="${bundlesDir}"/> + <echo>value of t = @{t}</echo> + </sequential> + </macrodef> + + +  + + <target name="nop"> + <prepareOSGiHarness binding="nop"/> + <junit printsummary="yes" fork="yes" dir="${basedir}" haltonfailure="yes"> + <classpath path="${test_classpath}"/> + <formatter type="plain" /> + <test fork="yes" todir="target/unit-reports" name="org.slf4j.test_osgi.BundleTest" /> + </junit> + </target> + + <target name="simple"> + <prepareOSGiHarness binding="simple"/> + <junit printsummary="yes" fork="yes" dir="${basedir}" haltonfailure="yes"> + <classpath path="${test_classpath}"/> + <formatter type="plain" /> + <test fork="yes" todir="target/unit-reports" name="org.slf4j.test_osgi.BundleTest" /> + </junit> + </target> + + <target name="jdk14"> + <prepareOSGiHarness binding="jdk14"/> + <junit printsummary="yes" fork="yes" dir="${basedir}" haltonfailure="yes"> + <classpath path="${test_classpath}"/> + <formatter type="plain" /> + <test fork="yes" todir="target/unit-reports" name="org.slf4j.test_osgi.BundleTest" /> + </junit> + </target> + +</project> \ No newline at end of file diff --git a/integration/pom.xml b/integration/pom.xml index 092b264..52e530e 100644 --- a/integration/pom.xml +++ b/integration/pom.xml @@ -38,6 +38,13 @@ <version>1.6.5</version> </dependency> + +  + <dependency> + <groupId>org.apache.felix</groupId> + <artifactId>org.apache.felix.main</artifactId> + <version>2.0.2</version> + </dependency> </dependencies> <build> @@ -75,6 +82,22 @@ <goal>run</goal> </goals> </execution> + <execution> + <id>ant-osgi-test</id> + <phase>package</phase> + <configuration> + <tasks> + <property name="currentVersion" value="${version}" /> + <property name="test_classpath" refid="maven.test.classpath"/> + <property name="basedir" value="${basedir}"/> + <ant antfile="${basedir}/osgi-build.xml"/> + </tasks> + </configuration> + <goals> + <goal>run</goal> + </goals> + </execution> + </executions> </plugin> diff --git a/integration/src/IBUNDLE-META-INF/MANIFEST.MF b/integration/src/IBUNDLE-META-INF/MANIFEST.MF new file mode 100644 index 0000000..c06e460 --- /dev/null +++ b/integration/src/IBUNDLE-META-INF/MANIFEST.MF @@ -0,0 +1,15 @@ +Manifest-Version: 1.0 +Archiver-Version: Plexus Archiver +Created-By: Apache Maven +Built-By: ceki +Build-Jdk: 1.6.0_16 +Bundle-Description: iBundle +Bundle-Version: 0.1 +Bundle-Activator: integrator.Activator +Implementation-Title: iBundle +Bundle-ManifestVersion: 2 +Bundle-SymbolicName: iBundle +Bundle-Name: abundle +Bundle-RequiredExecutionEnvironment: J2SE-1.3 +Export-Package: apack +Import-Package: org.osgi.framework, org.slf4j;version=1.5 \ No newline at end of file diff --git a/integration/src/test/java/integrator/Activator.java b/integration/src/test/java/integrator/Activator.java new file mode 100644 index 0000000..c2f6617 --- /dev/null +++ b/integration/src/test/java/integrator/Activator.java @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2004-2009 QOS.ch All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +package integrator; + +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * A BundleActivator which invokes slf4j loggers + * @author Ceki Gülcü + * + */ +public class Activator implements BundleActivator { + + private BundleContext m_context = null; + + public void start(BundleContext context) { + Logger logger = LoggerFactory.getLogger(this.getClass()); + logger.info("Activator.start()"); + m_context = context; + } + + public void stop(BundleContext context) { + m_context = null; + Logger logger = LoggerFactory.getLogger(this.getClass()); + logger.info("Activator.stop"); + } + + public Bundle[] getBundles() { + if (m_context != null) { + return m_context.getBundles(); + } + return null; + } +} \ No newline at end of file diff --git a/integration/src/test/java/org/slf4j/test_osgi/BundleTest.java b/integration/src/test/java/org/slf4j/test_osgi/BundleTest.java new file mode 100644 index 0000000..6488a9a --- /dev/null +++ b/integration/src/test/java/org/slf4j/test_osgi/BundleTest.java @@ -0,0 +1,35 @@ +package org.slf4j.test_osgi; + +import java.io.File; + +import junit.framework.TestCase; + +public class BundleTest extends TestCase { + + FrameworkErrorListener fel = new FrameworkErrorListener(); + CheckingBundleListener mbl = new CheckingBundleListener(); + + FelixHost felixHost = new FelixHost(fel, mbl); + + protected void setUp() throws Exception { + super.setUp(); + felixHost.doLaunch(); + } + + protected void tearDown() throws Exception { + super.tearDown(); + felixHost.stop(); + } + + public void testSmoke() { + System.out.println("==========="+new File(".").getAbsolutePath()); + mbl.dumpAll(); + // check that the bundle was installed + assertTrue(mbl.exists("iBundle")); + if(fel.errorList.size() != 0) { + fel.dumpAll(); + } + // check that no errors occured + assertEquals(0, fel.errorList.size()); + } +} diff --git a/integration/src/test/java/org/slf4j/test_osgi/CheckingBundleListener.java b/integration/src/test/java/org/slf4j/test_osgi/CheckingBundleListener.java new file mode 100644 index 0000000..bfaeed0 --- /dev/null +++ b/integration/src/test/java/org/slf4j/test_osgi/CheckingBundleListener.java @@ -0,0 +1,43 @@ +package org.slf4j.test_osgi; + +import java.util.ArrayList; +import java.util.List; + +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleEvent; +import org.osgi.framework.BundleListener; + +public class CheckingBundleListener implements BundleListener { + + List eventList = new ArrayList(); + + public void bundleChanged(BundleEvent be) { + eventList.add(be); + } + + private void dump(BundleEvent be) { + System.out.println("BE:" + ", source " + be.getSource() + ", bundle=" + + be.getBundle() + ", type=" + be.getType()); + + } + + public void dumpAll() { + for (int i = 0; i < eventList.size(); i++) { + BundleEvent fe = (BundleEvent) eventList.get(i); + dump(fe); + } + } + + boolean exists(String bundleName) { + for (int i = 0; i < eventList.size(); i++) { + BundleEvent fe = (BundleEvent) eventList.get(i); + Bundle b = fe.getBundle(); + System.out.println("===["+b+"]"); + if (bundleName.equals(b.getSymbolicName())) { + return true; + } + } + return false; + } + +} diff --git a/integration/src/test/java/org/slf4j/test_osgi/FelixHost.java b/integration/src/test/java/org/slf4j/test_osgi/FelixHost.java new file mode 100644 index 0000000..4fd572d --- /dev/null +++ b/integration/src/test/java/org/slf4j/test_osgi/FelixHost.java @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2004-2009 QOS.ch All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +package org.slf4j.test_osgi; + +import java.util.ArrayList; +import java.util.List; +import java.util.Map; +import java.util.Properties; + +import org.apache.felix.framework.Felix; +import org.apache.felix.framework.util.FelixConstants; +import org.apache.felix.framework.util.StringMap; +import org.apache.felix.main.AutoProcessor; +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleException; +import org.osgi.framework.Constants; + +/** + * Runs a hosted version of Felix for testing purposes. Any bundle errors are + * reported via the FrameworkListener passed to the constructor. + * + * @author Ceki Gücü + */ +public class FelixHost { + + private Felix felix = null; + + Properties otherProps = new Properties(); + + final FrameworkErrorListener frameworkErrorListener; + final CheckingBundleListener myBundleListener; + + public FelixHost(FrameworkErrorListener frameworkErrorListener, + CheckingBundleListener myBundleListener) { + this.frameworkErrorListener = frameworkErrorListener; + this.myBundleListener = myBundleListener; + } + + public void doLaunch() { + // Create a case-insensitive configuration property map. + Map configMap = new StringMap(false); + // Configure the Felix instance to be embedded. + // configMap.put(FelixConstants.EMBEDDED_EXECUTION_PROP, "true"); + // Add core OSGi packages to be exported from the class path + // via the system bundle. + configMap.put(Constants.FRAMEWORK_SYSTEMPACKAGES, + "org.osgi.framework; version=1.3.0," + + "org.osgi.service.packageadmin; version=1.2.0," + + "org.osgi.service.startlevel; version=1.0.0," + + "org.osgi.service.url; version=1.0.0"); + + configMap.put(Constants.FRAMEWORK_STORAGE_CLEAN, + Constants.FRAMEWORK_STORAGE_CLEAN_ONFIRSTINIT); + + // Explicitly specify the directory to use for caching bundles. + // configMap.put(BundleCache.CACHE_PROFILE_DIR_PROP, "cache"); + + try { + // Create host activator; + + List list = new ArrayList(); + + // list.add(new HostActivator()); + configMap.put(Constants.FRAMEWORK_SYSTEMPACKAGES_EXTRA, + "org.xml.sax, org.xml.sax.helpers, javax.xml.parsers, javax.naming"); + configMap.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); + configMap.put("felix.log.level", "4"); + + // Now create an instance of the framework with + // our configuration properties and activator. + felix = new Felix(configMap); + felix.init(); + + // otherProps.put(Constants.FRAMEWORK_STORAGE, "bundles"); + + otherProps.put(AutoProcessor.AUTO_DEPLOY_DIR_PROPERY, + AutoProcessor.AUTO_DEPLOY_DIR_VALUE); + otherProps.put(AutoProcessor.AUTO_DEPLOY_ACTION_PROPERY, + AutoProcessor.AUTO_DEPLOY_START_VALUE + "," + + AutoProcessor.AUTO_DEPLOY_INSTALL_VALUE); + + BundleContext felixBudleContext = felix.getBundleContext(); + + AutoProcessor.process(otherProps, felixBudleContext); + // listen to errors + felixBudleContext.addFrameworkListener(frameworkErrorListener); + felixBudleContext.addBundleListener(myBundleListener); + // Now start Felix instance. + felix.start(); + System.out.println("felix started"); + + } catch (Exception ex) { + ex.printStackTrace(); + } + } + + public void stop() throws BundleException { + felix.stop(); + } + + public Bundle[] getInstalledBundles() { + // Use the system bundle activator to gain external + // access to the set of installed bundles. + return null;// m_activator.getBundles(); + } +} \ No newline at end of file diff --git a/integration/src/test/java/org/slf4j/test_osgi/FrameworkErrorListener.java b/integration/src/test/java/org/slf4j/test_osgi/FrameworkErrorListener.java new file mode 100644 index 0000000..3e9ee36 --- /dev/null +++ b/integration/src/test/java/org/slf4j/test_osgi/FrameworkErrorListener.java @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2004-2009 QOS.ch All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +package org.slf4j.test_osgi; + +import java.util.ArrayList; +import java.util.List; + +import org.osgi.framework.FrameworkEvent; +import org.osgi.framework.FrameworkListener; + +public class FrameworkErrorListener implements FrameworkListener { + + public List errorList = new ArrayList(); + + public void frameworkEvent(FrameworkEvent fe) { + if (fe.getType() == FrameworkEvent.ERROR) { + errorList.add(fe); + + } + } + + private void dump(FrameworkEvent fe) { + Throwable t = fe.getThrowable(); + String tString = null; + if (t != null) { + tString = t.toString(); + } + System.out.println("Framework ERROR:" + ", source " + fe.getSource() + + ", bundle=" + fe.getBundle() + ", ex=" + tString); + if(t != null) { + t.printStackTrace(); + } + } + + public void dumpAll() { + for(int i = 0; i < errorList.size(); i++) { + FrameworkEvent fe = (FrameworkEvent) errorList.get(i); + dump(fe); + } + } +} diff --git a/slf4j-site/src/site/pages/mailing-lists.html b/slf4j-site/src/site/pages/mailing-lists.html index 1f17e11..84b262b 100644 --- a/slf4j-site/src/site/pages/mailing-lists.html +++ b/slf4j-site/src/site/pages/mailing-lists.html @@ -65,11 +65,11 @@ Low Traffic: - <a href="http://slf4j.org/mailman/listinfo/announce">Subscribe</a> | - <a href="http://slf4j.org/mailman/options/announce">Unsubscribe</a> + <a href="http://www.qos.ch/mailman/listinfo/announce">Subscribe</a> | + <a href="http://www.qos.ch/mailman/options/announce">Unsubscribe</a> Archives: - <a href="http://www.slf4j.org/pipermail/announce/">Pipermail</a> | + <a href="http://www.www.qos.ch/pipermail/announce/">Pipermail</a> | <a href="http://marc.theaimsgroup.com/?l=slf4j-announce">MARC</a> The announcements list is reserved for important SLF4J API @@ -86,11 +86,11 @@ Medium Traffic: - <a href="http://slf4j.org/mailman/listinfo/user">Subscribe</a> | - <a href="http://slf4j.org/mailman/options/user">Unsubscribe</a> + <a href="http://www.qos.ch/mailman/listinfo/slf4j-user">Subscribe</a> | + <a href="http://www.qos.ch/mailman/options/slf4j-user">Unsubscribe</a> Archives: - <a href="http://www.slf4j.org/pipermail/user/">Pipermail</a> | + <a href="http://www.qos.ch/pipermail/slf4j-user/">Pipermail</a> | <a href="http://news.gmane.org/gmane.comp.java.slf4j.user">Gmane</a> | <a href="http://marc.theaimsgroup.com/?l=slf4j-user">MARC</a> | <a href="http://www.nabble.com/Slf4J---user-f13203.html">Nabble</a> | @@ -109,11 +109,11 @@ Medium Traffic: - <a href="http://slf4j.org/mailman/listinfo/dev">Subscribe</a> | - <a href="http://slf4j.org/mailman/options/dev">Unsubscribe</a> + <a href="http://www.qos.ch/mailman/listinfo/slf4j-dev">Subscribe</a> | + <a href="http://www.qos.ch/mailman/options/slf4j-dev">Unsubscribe</a> Archives: - <a href="http://www.slf4j.org/pipermail/dev/">Pipermail</a> | + <a href="http://www.qos.ch/pipermail/slf4j-dev/">Pipermail</a> | <a href="http://news.gmane.org/gmane.comp.java.slf4j.devel">Gmane</a> | <a href="http://marc.theaimsgroup.com/?l=slf4j-dev">MARC</a> | <a href="http://www.nabble.com/Slf4J---dev-f13200.html">Nabble</a> | ----------------------------------------------------------------------- Summary of changes: .gitignore | 4 +- integration/build.xml | 3 +- integration/osgi-build.xml | 92 ++++++++++++++ integration/pom.xml | 23 ++++ integration/src/IBUNDLE-META-INF/MANIFEST.MF | 15 +++ .../src/test/java/integrator/Activator.java | 57 +++++++++ .../test/java/org/slf4j/test_osgi/BundleTest.java | 35 ++++++ .../slf4j/test_osgi/CheckingBundleListener.java | 43 +++++++ .../test/java/org/slf4j/test_osgi/FelixHost.java | 126 ++++++++++++++++++++ .../slf4j/test_osgi/FrameworkErrorListener.java | 60 +++++++++ slf4j-site/src/site/pages/mailing-lists.html | 18 ++-- 11 files changed, 465 insertions(+), 11 deletions(-) create mode 100644 integration/osgi-build.xml create mode 100644 integration/src/IBUNDLE-META-INF/MANIFEST.MF create mode 100644 integration/src/test/java/integrator/Activator.java create mode 100644 integration/src/test/java/org/slf4j/test_osgi/BundleTest.java create mode 100644 integration/src/test/java/org/slf4j/test_osgi/CheckingBundleListener.java create mode 100644 integration/src/test/java/org/slf4j/test_osgi/FelixHost.java create mode 100644 integration/src/test/java/org/slf4j/test_osgi/FrameworkErrorListener.java hooks/post-receive -- SLF4J: Simple Logging Facade for Java

1 0

Re: [slf4j-dev] Static binding...
by Ceki Gülcü 27 Nov '09

27 Nov '09

Hi Joern, Well, it's more of a java question than slf4j. The difference is between direct method call and a method call via reflection. The latter is known to be a bit slower and is also harder to read. There might also be subtle class loader differences. Joern Huxhorn wrote: > I was wondering if there is a real substantial difference between > > a) ILoggerFactory > factory=org.slf4j.impl.StaticLoggerBinder.getLoggerFactory(); > > and > > b) ILoggerFactory factory=(ILoggerFactory) > Class.forName("org.slf4j.impl.StaticLoggerBinder").getMethod("getLoggerFactory").invoke(null); > > > I mean, are the classes resolved any different? > > Beside a compile-time error in case of a) if the class is missing, of > course. > > Regards, > Joern. -- Ceki

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Re: [slf4j-dev] slf4j-osgi-api module
by Hugues Malphettes 26 Nov '09

26 Nov '09

On Thu, Nov 26, 2009 at 2:25 AM, Ceki Gülcü <ceki(a)qos.ch> wrote: > Hello Hugues, > Hi! Thanks for your interest in this experiment to get rid of the cyclic dependency between slf4j-api and a bundle that provides an slf4j implementation (bug #75). > > From what I could gather looking at the slf4j-api-osgi module, it > looks like the slf4j-api-osgi module is responsible for binding > slf4j-api with the underlying logging framework using the resolution > functionality offered by OSGi. Given that slf4j-api-osgi module itself > exports the org.slf4j.impl package, I was wondering how you were going > to avoid recursing endlessly into slf4j-api-osgi or mistakenly export > the org.slf4j.impl package found in slf4j-api-osgi instead of a > real/desired implementation. slf4j-api-osgi avoids that undesirable > predicament by exporting the o.s.impl package only if the exporting > bundle is not itself. It also registers listeners in case the desired > bundle is installed later on. Nice. Thanks! I tested this scenario to make sure the listeners are working as expected: - start everything with logback-classic - do some logging: loggers are provided by logback-classic - stop logback-classic. - get a new Logger returns the NOP-logger - start logback-classic again - getting a new logger return loggers provided by logback classic again. > > However, I still don't see what happens if the slf4j-api-osgi is > exported by another bundle *before* the slf4j-api-osgi bundle is > installed and before it has a chance to act. OSGi will only start a bundle once all its dependencies are resolved as bundles and those are started. As all bundles that provide o.s.impl import the package o.slf4j; it is guaranteed that slf4j-api is installed first before them. slf4j-api-osgi bundle is a fragment hosted by slf4j-api. When slf4j-api is installed by the OSGi container the slf4j-api-osgi is "attached" to slf4j-api. The OSGi spec says that fragments are not started, they are "attached" to their host bundle. Hence when slf4j-api is started we also have slf4j-api-osgi acting inside it. The org.slf4j.impl package provided by slf4j-api-osgi is placed in the very same classloader than org.slf4j.Logger So when org.slf4j.LoggerFactory imports org.slf4j.impl.StaticLoggerBinder it finds the one provided by slf4j-api-osgi. There is another way to achieve the exact same situation: place the classes of slf4j-api-osgi as a jar embedded inside slf4j-api. It is taken into account only by osgi and it would save us having to carry a new jar for the OSGi support. > > Much more importantly, I am worryingly missing the big picture. Even > if the org.slf4j.impl is exported according to our wishes, how is the > org.slf4j package imported and by who? In other words, how does client > code wishing to use the org.slf4j.Logger class get hold of it and what > is the relationship between that client code and OSGi? Client bundles that depend on slf4j state in their manifest: Import-Package: org.slf4j The osgi container resolves this into a dependency on slf4j-api and everything works on the client side. On the logger implementation side: we need logback-classic or another bundle that provides o.s.impl to be set to start automatically. slf4j logs with NOPLogger until logback-classic is started Let me know if this makes sense, Cheers, Hugues > > Many thanks in advance for your response, > > -- > Ceki > > ps. I am CCing dev(a)slf4j.org so that others can follow the discussion. >

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testing, please ignore
by Ceki Gülcü 26 Nov '09

26 Nov '09

testing automatic forwarding to slf4j-dev(a)qos.ch

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renamed dev@slff4j.org mailing list
by Ceki Gülcü 26 Nov '09

26 Nov '09

Hello, Since it is is somewhat non-trivial to run an SMTP server, especially in case of replicating servers, I would like to shut down the slf4j.org SMTP server and migrate the various mailing lists to qos.ch. As such, the slf4j.org mailing lists, that is dev(a)slf4j.org and user(a)slfj4.org will be migrated to qos.ch as slf4j-dev(a)qos.ch and respectively as slf4j-user(a)qos.ch. The announce(a)slf4j.org mailing list will be merged into announce(a)qos.ch. Existing subscriptions will be migrated automatically. Best regards, -- Ceki

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testing
by Ceki Gülcü 26 Nov '09

26 Nov '09

testing

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