[logback-dev] [GIT] Logback: the generic, reliable, fast and flexible logging framework. branch, master, updated. v0.9.20-12-g5e93537
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- Log -----------------------------------------------------------------
http://git.qos.ch/gitweb/?p=logback.git;a=commit;h=5e93537ed06b334bd3f57f577f0545d598caae13
http://github.com/ceki/logback/commit/5e93537ed06b334bd3f57f577f0545d598caae13
commit 5e93537ed06b334bd3f57f577f0545d598caae13
Author: Ceki Gulcu <ceki at qos.ch>
Date: Mon May 3 21:58:01 2010 +0200
- upgrade to SLF4J 1.6.0-alpha2
- added GEventEvaluator
diff --git a/logback-classic/pom.xml b/logback-classic/pom.xml
index 032c8c9..045663f 100644
--- a/logback-classic/pom.xml
+++ b/logback-classic/pom.xml
@@ -115,6 +115,14 @@
</dependency>
<dependency>
+ <groupId>org.codehaus.groovy</groupId>
+ <artifactId>groovy-all</artifactId>
+ <scope>compile</scope>
+ <optional>true</optional>
+ </dependency>
+
+
+ <dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<type>test-jar</type>
@@ -178,8 +186,18 @@
</dependencies>
<build>
- <plugins>
+ <resources>
+ <resource>
+ <directory>src/main/groovy</directory>
+ <includes>
+ <include>**/EvaluatorTemplate.groovy</include>
+ </includes>
+ </resource>
+ </resources>
+
+
+ <plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
@@ -190,6 +208,21 @@
</plugin>
<plugin>
+ <groupId>org.codehaus.groovy.maven</groupId>
+ <artifactId>gmaven-plugin</artifactId>
+ <executions>
+ <execution>
+ <goals>
+ <goal>generateStubs</goal>
+ <goal>compile</goal>
+ <goal>generateTestStubs</goal>
+ <goal>testCompile</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+
+ <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
@@ -289,15 +322,14 @@ org.slf4j.test_osgi
config files). They won't be found by Bnd's analysis
of java code. -->
- <!-- importing ch.qos.logback.classic.util is strange but
- is required for the OSGi integration tests to pass
- -->
<Import-Package>
sun.reflect;resolution:=optional,
javax.*;resolution:=optional,
org.xml.*;resolution:=optional,
ch.qos.logback.core.rolling,
- ch.qos.logback.core.rolling.helper,
+ ch.qos.logback.core.rolling.helper,
+ org.codehaus.groovy.*;resolution:=optional,
+ groovy.lang.*;resolution:=optional,
*
</Import-Package>
diff --git a/logback-classic/src/main/groovy/ch/qos/logback/classic/boolex/EvaluatorTemplate.groovy b/logback-classic/src/main/groovy/ch/qos/logback/classic/boolex/EvaluatorTemplate.groovy
new file mode 100644
index 0000000..a090124
--- /dev/null
+++ b/logback-classic/src/main/groovy/ch/qos/logback/classic/boolex/EvaluatorTemplate.groovy
@@ -0,0 +1,40 @@
+/**
+ * Logback: the reliable, generic, fast and flexible logging framework.
+ * Copyright (C) 1999-2010, QOS.ch. All rights reserved.
+ *
+ * This program and the accompanying materials are dual-licensed under
+ * either the terms of the Eclipse Public License v1.0 as published by
+ * the Eclipse Foundation
+ *
+ * or (per the licensee's choosing)
+ *
+ * under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation.
+ */
+package ch.qos.logback.classic.boolex
+
+import ch.qos.logback.classic.spi.ILoggingEvent
+
+import static ch.qos.logback.classic.Level.TRACE;
+import static ch.qos.logback.classic.Level.DEBUG;
+import static ch.qos.logback.classic.Level.INFO;
+import static ch.qos.logback.classic.Level.WARN;
+import static ch.qos.logback.classic.Level.ERROR;
+
+// WARNING
+// If this file is renamed, this should be reflected in
+// logback-classic/pom.xml resources section.
+
+/**
+ * @author Ceki Gücü
+ */
+public class EvaluatorTemplate implements IEvaluator {
+
+
+ boolean doEvaluate(ILoggingEvent event) {
+ ILoggingEvent e = event;
+ //EXPRESSION
+ }
+
+
+}
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/boolex/GEventEvaluator.java b/logback-classic/src/main/java/ch/qos/logback/classic/boolex/GEventEvaluator.java
new file mode 100644
index 0000000..72a7bad
--- /dev/null
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/boolex/GEventEvaluator.java
@@ -0,0 +1,86 @@
+/**
+ * Logback: the reliable, generic, fast and flexible logging framework.
+ * Copyright (C) 1999-2010, QOS.ch. All rights reserved.
+ *
+ * This program and the accompanying materials are dual-licensed under
+ * either the terms of the Eclipse Public License v1.0 as published by
+ * the Eclipse Foundation
+ *
+ * or (per the licensee's choosing)
+ *
+ * under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation.
+ */
+
+package ch.qos.logback.classic.boolex;
+
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.boolex.EvaluationException;
+import ch.qos.logback.core.boolex.EventEvaluator;
+import ch.qos.logback.core.boolex.EventEvaluatorBase;
+import ch.qos.logback.core.util.FileUtil;
+import groovy.lang.*;
+import org.codehaus.groovy.control.CompilationFailedException;
+
+/**
+ * @author Ceki Gülcü
+ */
+public class GEventEvaluator extends EventEvaluatorBase<ILoggingEvent> {
+
+ String expression;
+
+ IEvaluator delegateEvaluator;
+ Script script;
+
+ public String getExpression() {
+ return expression;
+ }
+
+ public void setExpression(String expression) {
+ this.expression = expression;
+ }
+
+ public void start() {
+ if (expression == null || expression.length() == 0) {
+ addError("Empty expression");
+ return;
+ } else {
+ addInfo("Expression to evaluate [" + expression + "]");
+ }
+
+
+ ClassLoader classLoader = getClass().getClassLoader();
+ String currentPackageName = this.getClass().getPackage().getName();
+ currentPackageName = currentPackageName.replace('.', '/');
+
+ String scriptText = FileUtil.resourceAsString(this, classLoader, currentPackageName + "/EvaluatorTemplate.groovy");
+ if(scriptText == null) {
+ return;
+ }
+
+ // insert the expression into script text
+ scriptText = scriptText.replace("//EXPRESSION", expression);
+
+ GroovyClassLoader gLoader = new GroovyClassLoader(classLoader);
+ try {
+ Class scriptClass = gLoader.parseClass(scriptText);
+
+ GroovyObject goo = (GroovyObject) scriptClass.newInstance();
+ delegateEvaluator = (IEvaluator) goo;
+
+ } catch (CompilationFailedException cfe) {
+ addError("Failed to compile expression [" + expression + "]", cfe);
+ } catch (Exception e) {
+ addError("Failed to compile expression [" + expression + "]", e);
+ }
+ }
+
+ public boolean evaluate(ILoggingEvent event) throws NullPointerException, EvaluationException {
+ if(delegateEvaluator == null) {
+ return false;
+ }
+ return delegateEvaluator.doEvaluate(event);
+ }
+
+
+}
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/boolex/IEvaluator.java b/logback-classic/src/main/java/ch/qos/logback/classic/boolex/IEvaluator.java
new file mode 100644
index 0000000..db79bf8
--- /dev/null
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/boolex/IEvaluator.java
@@ -0,0 +1,26 @@
+/**
+ * Logback: the reliable, generic, fast and flexible logging framework.
+ * Copyright (C) 1999-2010, QOS.ch. All rights reserved.
+ *
+ * This program and the accompanying materials are dual-licensed under
+ * either the terms of the Eclipse Public License v1.0 as published by
+ * the Eclipse Foundation
+ *
+ * or (per the licensee's choosing)
+ *
+ * under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation.
+ */
+package ch.qos.logback.classic.boolex;
+
+import ch.qos.logback.classic.spi.ILoggingEvent;
+
+/**
+ * An <b>internal</b> interface used by the GEventEvaluator.
+ *
+ * @author Ceki Gücü
+ */
+public interface IEvaluator {
+ public boolean doEvaluate(ILoggingEvent event);
+}
+
\ No newline at end of file
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/spi/ILoggingEvent.java b/logback-classic/src/main/java/ch/qos/logback/classic/spi/ILoggingEvent.java
index b6edbdb..a550040 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/spi/ILoggingEvent.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/spi/ILoggingEvent.java
@@ -69,8 +69,15 @@ public interface ILoggingEvent extends DeferredProcessingAware {
public Marker getMarker();
+ /**
+ * Returns the MDC map.
+ */
public Map<String, String> getMDCPropertyMap();
+ /**
+ * Synonym for [@link #getMDCPropertyMap}.
+ */
+ public Map<String, String> getMdc();
public long getTimeStamp();
public void prepareForDeferredProcessing();
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java b/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java
index 774c5fd..8cbf883 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java
@@ -312,6 +312,10 @@ public class LoggingEvent implements ILoggingEvent {
return mdcPropertyMap;
}
+ public Map<String, String> getMdc() {
+ return mdcPropertyMap;
+ }
+
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
diff --git a/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEventVO.java b/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEventVO.java
index c55b281..d8228d2 100644
--- a/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEventVO.java
+++ b/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEventVO.java
@@ -149,7 +149,10 @@ public class LoggingEventVO implements ILoggingEvent, Serializable {
public Map<String, String> getMDCPropertyMap() {
return mdcPropertyMap;
}
-
+ public Map<String, String> getMdc() {
+ return mdcPropertyMap;
+ }
+
public void prepareForDeferredProcessing() {
}
diff --git a/logback-classic/src/main/java/org/slf4j/impl/StaticLoggerBinder.java b/logback-classic/src/main/java/org/slf4j/impl/StaticLoggerBinder.java
index 9e6ee66..fe80bb7 100644
--- a/logback-classic/src/main/java/org/slf4j/impl/StaticLoggerBinder.java
+++ b/logback-classic/src/main/java/org/slf4j/impl/StaticLoggerBinder.java
@@ -40,7 +40,7 @@ public class StaticLoggerBinder implements LoggerFactoryBinder {
* against. The value of this field is usually modified with each release.
*/
// to avoid constant folding by the compiler, this field must *not* be final
- public static String REQUESTED_API_VERSION = "1.5.11"; // !final
+ public static String REQUESTED_API_VERSION = "1.6"; // !final
final static String NULL_CS_URL = CoreConstants.CODES_URL + "#null_CS";
diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/boolex/GEventEvaluatorTest.java b/logback-classic/src/test/java/ch/qos/logback/classic/boolex/GEventEvaluatorTest.java
new file mode 100644
index 0000000..5fe551f
--- /dev/null
+++ b/logback-classic/src/test/java/ch/qos/logback/classic/boolex/GEventEvaluatorTest.java
@@ -0,0 +1,147 @@
+package ch.qos.logback.classic.boolex;
+
+
+import ch.qos.logback.classic.Level;
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.classic.spi.LoggingEvent;
+import ch.qos.logback.core.CoreConstants;
+import ch.qos.logback.core.boolex.EvaluationException;
+import ch.qos.logback.core.status.StatusChecker;
+import ch.qos.logback.core.util.StatusPrinter;
+import org.junit.Test;
+import org.slf4j.MDC;
+import org.slf4j.Marker;
+import org.slf4j.MarkerFactory;
+import org.slf4j.helpers.BogoPerf;
+
+import static junit.framework.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author Ceki Gücü
+ */
+
+public class GEventEvaluatorTest {
+
+ LoggerContext context = new LoggerContext();
+ StatusChecker statusChecker = new StatusChecker(context);
+ int LEN = 100 * 1000;
+
+ Logger logger = context.getLogger(this.getClass());
+ Marker markerA = MarkerFactory.getMarker("A");
+
+ LoggingEvent makeEvent(String msg) {
+ return makeEvent(Level.DEBUG, msg, null, null);
+ }
+
+ LoggingEvent makeEvent(Level level, String msg, Throwable t, Object[] argArray) {
+ return new LoggingEvent(this.getClass().getName(), logger, level, msg, t, argArray);
+ }
+
+ void doEvaluateAndCheck(String expression, ILoggingEvent event, boolean expected) throws EvaluationException {
+ GEventEvaluator gee = new GEventEvaluator();
+ gee.setContext(context);
+ gee.setExpression(expression);
+ gee.start();
+
+ StatusPrinter.printInCaseOfErrorsOrWarnings(context);
+ assertTrue(statusChecker.isErrorFree());
+
+
+ boolean result = gee.evaluate(event);
+ assertEquals(expected, result);
+ }
+
+ @Test
+ public void smoke() throws EvaluationException {
+ doEvaluateAndCheck("1==1", null, true);
+ }
+
+ @Test
+ public void event() throws EvaluationException {
+ ILoggingEvent event = makeEvent("x");
+ event.getLoggerContextVO();
+ doEvaluateAndCheck("e.message == 'x'", event, true);
+ }
+
+ @Test
+ public void msgRegex() throws EvaluationException {
+ LoggingEvent event = makeEvent("Hello world");
+ // partial match
+ doEvaluateAndCheck("e.message =~ /xyz|wor/", event, true);
+ // full match
+ doEvaluateAndCheck("e.message ==~ /xyz|wor/", event, false);
+ }
+
+ @Test
+ public void level() throws EvaluationException {
+ LoggingEvent event = makeEvent("x");
+ doEvaluateAndCheck("e.level == DEBUG", event, true);
+ }
+
+
+ @Test
+ public void nullMarker() throws EvaluationException {
+ LoggingEvent event = makeEvent("x");
+ doEvaluateAndCheck("e.marker?.name == 'YELLOW'", event, false);
+ }
+
+ @Test
+ public void marker() throws EvaluationException {
+ LoggingEvent event = makeEvent("x");
+ event.setMarker(markerA);
+ doEvaluateAndCheck("e.marker?.name == 'A'", event, true);
+ }
+
+ @Test
+ public void nullMDC() throws EvaluationException {
+ LoggingEvent event = makeEvent("x");
+ doEvaluateAndCheck("e.mdc?.get('key') == 'val'", event, false);
+ }
+
+ @Test
+ public void mdc() throws EvaluationException {
+ MDC.put("key", "val");
+ LoggingEvent event = makeEvent("x");
+ doEvaluateAndCheck("e.mdc['key'] == 'val'", event, true);
+ MDC.clear();
+ }
+
+
+ @Test
+ public void callerData() throws EvaluationException {
+ LoggingEvent event = makeEvent("x");
+ doEvaluateAndCheck("e.callerData.find{ it.className =~ /junit/ }", event, true);
+ }
+
+
+ double loop(GEventEvaluator gee) throws EvaluationException {
+ long start = System.nanoTime();
+ ILoggingEvent event = makeEvent("x");
+ for (int i = 0; i < LEN; i++) {
+ gee.evaluate(event);
+ }
+ long end = System.nanoTime();
+ return (end - start) / LEN;
+ }
+
+ @Test
+ public void perfTest() throws EvaluationException {
+ GEventEvaluator gee = new GEventEvaluator();
+ gee.setContext(context);
+ gee.setExpression("event.timeStamp < 100 && event.message != 'xx' ");
+ gee.start();
+
+ loop(gee);
+ loop(gee);
+ double avgDuration = loop(gee);
+
+ long referencePerf = 500;
+ BogoPerf.assertDuration(avgDuration, referencePerf,
+ CoreConstants.REFERENCE_BIPS);
+ System.out.println("Average duration " + avgDuration);
+ }
+
+}
\ No newline at end of file
diff --git a/logback-classic/src/test/java/ch/qos/logback/classic/spi/PubLoggingEventVO.java b/logback-classic/src/test/java/ch/qos/logback/classic/spi/PubLoggingEventVO.java
index 68d17e3..57d293b 100644
--- a/logback-classic/src/test/java/ch/qos/logback/classic/spi/PubLoggingEventVO.java
+++ b/logback-classic/src/test/java/ch/qos/logback/classic/spi/PubLoggingEventVO.java
@@ -124,6 +124,10 @@ public class PubLoggingEventVO implements ILoggingEvent, Serializable {
return mdcPropertyMap;
}
+ public Map<String, String> getMdc() {
+ return mdcPropertyMap;
+ }
+
public void prepareForDeferredProcessing() {
}
diff --git a/logback-core/src/main/java/ch/qos/logback/core/boolex/EventEvaluatorBase.java b/logback-core/src/main/java/ch/qos/logback/core/boolex/EventEvaluatorBase.java
index d85dcda..58fa250 100644
--- a/logback-core/src/main/java/ch/qos/logback/core/boolex/EventEvaluatorBase.java
+++ b/logback-core/src/main/java/ch/qos/logback/core/boolex/EventEvaluatorBase.java
@@ -22,7 +22,6 @@ abstract public class EventEvaluatorBase<E> extends ContextAwareBase implements
boolean started;
public String getName() {
-
return name;
}
diff --git a/logback-core/src/main/java/ch/qos/logback/core/net/SMTPAppenderBase.java b/logback-core/src/main/java/ch/qos/logback/core/net/SMTPAppenderBase.java
index 4b99245..2b036b0 100644
--- a/logback-core/src/main/java/ch/qos/logback/core/net/SMTPAppenderBase.java
+++ b/logback-core/src/main/java/ch/qos/logback/core/net/SMTPAppenderBase.java
@@ -159,9 +159,9 @@ public abstract class SMTPAppenderBase<E> extends AppenderBase<E> {
sendBuffer(eventObject);
}
} catch (EvaluationException ex) {
- errorCount ++;
+ errorCount ++;
if (errorCount < CoreConstants.MAX_ERROR_COUNT) {
- addError("SMTPAppender's EventEvaluator threw an Exception" + ex);
+ addError("SMTPAppender's EventEvaluator threw an Exception-", ex);
}
}
}
@@ -425,7 +425,7 @@ public abstract class SMTPAppenderBase<E> extends AppenderBase<E> {
*/
public String getCharsetEncoding() {
return charsetEncoding;
- }
+ }
/**
* Set the character set encoding of the outgoing email messages. The default
diff --git a/logback-core/src/main/java/ch/qos/logback/core/util/FileUtil.java b/logback-core/src/main/java/ch/qos/logback/core/util/FileUtil.java
index 80fe0c7..84e03af 100644
--- a/logback-core/src/main/java/ch/qos/logback/core/util/FileUtil.java
+++ b/logback-core/src/main/java/ch/qos/logback/core/util/FileUtil.java
@@ -13,28 +13,64 @@
*/
package ch.qos.logback.core.util;
+import ch.qos.logback.core.spi.ContextAware;
+
import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.net.URLConnection;
public class FileUtil {
- public static boolean mustCreateParentDirectories(File file) {
+ static public boolean mustCreateParentDirectories(File file) {
File parent = file.getParentFile();
- if(parent != null && !parent.exists()) {
+ if (parent != null && !parent.exists()) {
return true;
} else {
return false;
}
}
-
- public static boolean createMissingParentDirectories(File file) {
+
+ static public boolean createMissingParentDirectories(File file) {
File parent = file.getParentFile();
- if(parent == null || parent.exists()) {
+ if (parent == null || parent.exists()) {
throw new IllegalStateException(file + " should not have a null parent");
- }
- if(parent.exists()) {
+ }
+ if (parent.exists()) {
throw new IllegalStateException(file + " should not have existing parent directory");
- }
+ }
return parent.mkdirs();
}
+
+
+ static public String resourceAsString(ContextAware ca, ClassLoader classLoader, String resourceName) {
+ URL url = classLoader.getResource(resourceName);
+ if (url == null) {
+ ca.addError("Failed to find resource [" + resourceName + "]");
+ return null;
+ }
+
+ URLConnection urlConnection = null;
+ try {
+ urlConnection = url.openConnection();
+ urlConnection.setUseCaches(false);
+ InputStream is = urlConnection.getInputStream();
+ InputStreamReader isr = new InputStreamReader(is);
+ char[] buf = new char[128];
+ StringBuilder builder = new StringBuilder();
+ int count = -1;
+ while ((count = isr.read(buf, 0, buf.length)) != -1) {
+ builder.append(buf, 0, count);
+ }
+ isr.close();
+ is.close();
+ return builder.toString();
+ } catch (IOException e) {
+ ca.addError("Failled to open " + resourceName, e);
+ }
+ return null;
+ }
}
diff --git a/logback-site/src/site/pages/manual/filters.html b/logback-site/src/site/pages/manual/filters.html
index d3b4b75..43d5e82 100644
--- a/logback-site/src/site/pages/manual/filters.html
+++ b/logback-site/src/site/pages/manual/filters.html
@@ -234,8 +234,8 @@ public class SampleFilter extends Filter>ILoggingEvent> {
</configuration></pre>
- <h3><a name="evalutatorFilter"
- href="#evalutatorFilter">EvaluatorFilter</a></h3>
+ <h2><a name="evalutatorFilter"
+ href="#evalutatorFilter">EvaluatorFilter</a></h2>
<p><a
href="../xref/ch/qos/logback/core/filter/EvaluatorFilter.html"><code>EvaluatorFilter</code></a>
@@ -250,18 +250,119 @@ public class SampleFilter extends Filter>ILoggingEvent> {
<p>The <code>EventEvaluator</code> is an abstract class and you
can implement your own event evaluation logic by sub-classing
- <code>EventEvaluator</code>. However, logback-classic also ships
- with a concrete evaluator implementation called <a
+ <code>EventEvaluator</code>.
+ </p>
+
+
+ <!-- ======================== GEventEvaluator ========================= -->
+
+ <h3><a name="GEventEvaluator"
+ href="#GEventEvaluator">GEventEvaluator</a></h3>
+
+ <p><a
+ href="../xref/ch/qos/logback/classic/boolex/GEventEvaluator.html">GEventEvaluator</a>
+ is a concrete <a
+ href="../xref/ch/qos/logback/core/boolex/EventEvaluator.html"><code>EventEvaluator</code></a>
+ implementation taking artibtrary Groovy language boolean
+ expressions as the evaluation criteria. It admits an arbitrary
+ boolean expression written in Groovy. We refer such groovy
+ language boolean expressions as "groovy evaulation
+ expressions". Groovy evaluation expressions enable hereto
+ unprecedented flexibility in event
+ filtering. <code>GEventEvaluator</code> requires the Groovy
+ runtime. Please see the <a
+ href="../setup.html#gEventEvaluator">corresponding section</a> of
+ the setup document.
+ </p>
+
+ <p>Evaluation expressions are compiled on-the-fly during the
+ interpretation of the configuration file. As a user, you do not
+ need to worry about the actual plumbing. However, it is your
+ reponsibility to ensure that the groovy-language expression is
+ valid.
+ </p>
+
+ <p>The evaluation expression acts on the current logging event,
+ logback automatically inserts the current logging event of type <a
+ href="../apidocs/ch/qos/logback/classic/spi/ILoggingEvent.html">ILoggingEvent.</a>
+ as a variable called 'event' and its shorthand 'e'. The variables
+ TRACE, DEBUG, INFO, WARN and ERROR are also exported into the
+ scope of the expression. Thus, "event.level == DEBUG" is a valid
+ groovy expression which will return <code>true</code> only if the
+ current logging event's level is equal to DEBUG.
+ </p>
+
+ <p>Here is a more complete example.</p>
+
+<pre class="prettyprint source"><configuration>
+
+ <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+ <b><filter class="ch.qos.logback.core.filter.EvaluatorFilter">
+ <evaluator class="ch.qos.logback.classic.boolex.GEventEvaluator">
+ <expression>
+ e.level>=WARN
+ &amp;&amp; <!-- Stands for && in XML -->
+ !(e.mdc?.get("req.userAgent") ~= /Googlebot|msnbot|Yahoo/ )
+ </expression>
+ </evaluator>
+ <OnMismatch>DENY</OnMismatch>
+ <OnMatch>NEUTRAL</OnMatch>
+ </filter></b>
+ <encoder>
+ <pattern>
+ %-4relative [%thread] %-5level %logger - %msg%n
+ </pattern>
+ </encoder>
+ </appender>
+
+ <root level="DEBUG">
+ <appender-ref ref="STDOUT" />
+ </root>
+</configuration></pre>
+
+
+ <p>The above filter will let events of level WARN and higher go
+ through onto the console unless the error is generated by Web
+ crawlers associated with Google, MSN or Yahoo. It does so by
+ checking whether the MDC associated with the event contains a
+ value for "req.userAgent" matching the
+ <code>/Googlebot|msnbot|Yahoo/</code> regular expression. Note
+ that since the mdc map can be null, we are also using Groovy's <a
+ href="http://groovy.codehaus.org/Null+Object+Pattern">safe
+ derefencing opeator</a>, that is the .? operator. The equivalent
+ logic would have be much longer to express in Java.
+ </p>
+
+ <p>If you are wondering how the identifier for the user agent was
+ inserted into the MDC under the 'req.userAgent' key, it behooves
+ us to mention that logback ships with a servlet filter named <a
+ href="mdc.html#mis"><code>MDCInsertingServletFilter</code></a>
+ designed for this purpose. It will be described in a later
+ chapter.
+ </p>
+
+ <!-- ==================== JaninoEventEvaluator ======================== -->
+
+ <h3><a name="JaninoEventEvaluator"
+ href="#JaninoEventEvaluator">JaninoEventEvaluator</a></h3>
+
+
+ <p>Logback-classic ships with another concrete
+ <code>EventEvaluator</code> implementation called <a
href="../xref/ch/qos/logback/classic/boolex/JaninoEventEvaluator.html">JaninoEventEvaluator</a>
- which takes artibtrary java language boolean expressions as the
+ which taking artibtrary java language boolean expressions as the
evaluation criteria. We refer to such java language boolean
expressions as "<em>evaulation expressions</em>". Evaluation
- expressions enable hereto unprecedented flexibility in event
- filtering. <code>JaninoEventEvaluator</code> requires the <a
+ expressions enable great flexibility in event
+ filtering.<code>JaninoEventEvaluator</code> requires the <a
href="http://docs.codehaus.org/display/JANINO/Home">Janino
library</a>. Please see the <a
href="../setup.html#janino">corresponding section</a> of the setup
- document.
+ document. Compared to <code>JaninoEventEvaluator</code>,
+ <code>GEventEvaluator</code>, by virtue of the Groovy language, is
+ significantly more convenient to use, but
+ <code>JaninoEventEvaluator</code> will usually run (much) faster
+ for equivalent expressions.
</p>
<p>Evaluation expressions are compiled on-the-fly during the
@@ -555,6 +656,10 @@ java chapters.filters.FilterEvents src/main/java/chapters/filters/basicConfigura
<p>In case you need to define additional matchers, you can do so by
adding further <code><matcher></code> elements.</p>
+
+
+
+
<!-- ================================================================ -->
<!-- ===================== TURBO FILTER ============================= -->
<!-- ================================================================ -->
diff --git a/logback-site/src/site/pages/news.html b/logback-site/src/site/pages/news.html
index 70d1eed..398366a 100644
--- a/logback-site/src/site/pages/news.html
+++ b/logback-site/src/site/pages/news.html
@@ -38,6 +38,11 @@
by Ellen Strnod.
</p>
+ <p>Added <a
+ href="manual/filters.html#GEventEvaluator">GEventEvaluator</a>
+ which processes boolean expression written in the Groovy language.
+ </p>
+
<hr width="80%" align="center" />
diff --git a/logback-site/src/site/pages/setup.html b/logback-site/src/site/pages/setup.html
index 1b408c7..2922563 100644
--- a/logback-site/src/site/pages/setup.html
+++ b/logback-site/src/site/pages/setup.html
@@ -82,6 +82,16 @@
JavaMail</a>, you need to place <em>mail.jar</em> on your class
path.</p>
+
+ <h3><a name="gEventEvaluator"
+ href="#gEventEvaluator"><code>GEventEvaluator</code> requires the
+ Groovy runtime</a></h3>
+
+ <p><code>GEventEvaluator</code> depends on the Groovy runtime. It
+ was tested with Groovy version 1.7.2.
+ </p>
+
+
<h3><a name="janino" href="#janino">Evaluators and more
specifically <code>JaninoEvantEvaluator</code> require
Janino</a></h3>
diff --git a/pom.xml b/pom.xml
index eb436ae..88076fc 100755
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,7 @@
<properties>
<!-- slf4j.version property is used below, in
logback-classic/pom.xml and in setClasspath.cmd -->
- <slf4j.version>1.6.0-RC0</slf4j.version>
+ <slf4j.version>1.6.0-alpha2</slf4j.version>
<consolePlugin.version>1.1.0</consolePlugin.version>
</properties>
@@ -85,6 +85,11 @@
<version>2.5.10</version>
</dependency>
<dependency>
+ <groupId>org.codehaus.groovy</groupId>
+ <artifactId>groovy-all</artifactId>
+ <version>1.7.2</version>
+ </dependency>
+ <dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4</version>
-----------------------------------------------------------------------
Summary of changes:
logback-classic/pom.xml | 42 +++++-
.../classic/boolex/EvaluatorTemplate.groovy | 40 ++++++
.../logback/classic/boolex/GEventEvaluator.java | 86 ++++++++++++
.../IEvaluator.java} | 17 ++-
.../ch/qos/logback/classic/spi/ILoggingEvent.java | 7 +
.../ch/qos/logback/classic/spi/LoggingEvent.java | 4 +
.../ch/qos/logback/classic/spi/LoggingEventVO.java | 5 +-
.../java/org/slf4j/impl/StaticLoggerBinder.java | 2 +-
.../classic/boolex/GEventEvaluatorTest.java | 147 ++++++++++++++++++++
.../qos/logback/classic/spi/PubLoggingEventVO.java | 4 +
.../logback/core/boolex/EventEvaluatorBase.java | 1 -
.../ch/qos/logback/core/net/SMTPAppenderBase.java | 6 +-
.../java/ch/qos/logback/core/util/FileUtil.java | 52 ++++++-
logback-site/src/site/pages/manual/filters.html | 121 +++++++++++++++-
logback-site/src/site/pages/news.html | 5 +
logback-site/src/site/pages/setup.html | 10 ++
pom.xml | 7 +-
17 files changed, 521 insertions(+), 35 deletions(-)
create mode 100644 logback-classic/src/main/groovy/ch/qos/logback/classic/boolex/EvaluatorTemplate.groovy
create mode 100644 logback-classic/src/main/java/ch/qos/logback/classic/boolex/GEventEvaluator.java
copy logback-classic/src/main/java/ch/qos/logback/classic/{pattern/LoggerConverter.java => boolex/IEvaluator.java} (62%)
create mode 100644 logback-classic/src/test/java/ch/qos/logback/classic/boolex/GEventEvaluatorTest.java
hooks/post-receive
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