On Tue, Sep 13, 2016 at 10:33 PM, Ralph Goers <[email protected]>
wrote:
> Gary,
>
> RoutingAppender calls routes.getPattern(). Wouldn’t it make sense for the
> Routes class to execute the script in the call to getPattern and return the
> result if there is a script?
>
That's what Routes.getPattern() does (see this very commit thread):
@@ -90,12 +155,26 @@ public final class Routes {
* @return the pattern.
*/
public String getPattern() {
+ if (patternScript != null) {
+ final SimpleBindings bindings = new SimpleBindings();
+ bindings.put("configuration", configuration);
+ bindings.put("statusLogger", LOGGER);
+ final Object object =
configuration.getScriptManager().execute(patternScript.getName(),
bindings);
+ return Objects.toString(object, null);
+ }
return pattern;
}
Gary
>
> Ralph
>
> > On Sep 13, 2016, at 10:00 PM, [email protected] wrote:
> >
> > Repository: logging-log4j2
> > Updated Branches:
> > refs/heads/master 3846e2a87 -> e0f29d9ad
> >
> >
> > [LOG4J2-1578] RoutingAppender can be configured with scripts. Add Script
> > in a Routes element.
> >
> > Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
> > Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/
> commit/e0f29d9a
> > Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/
> e0f29d9a
> > Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/
> e0f29d9a
> >
> > Branch: refs/heads/master
> > Commit: e0f29d9ad73aa4579cdc2d71ae5e8c01dd4f9f9c
> > Parents: 3846e2a
> > Author: Gary Gregory <[email protected]>
> > Authored: Tue Sep 13 21:59:59 2016 -0700
> > Committer: Gary Gregory <[email protected]>
> > Committed: Tue Sep 13 21:59:59 2016 -0700
> >
> > ----------------------------------------------------------------------
> > .../log4j/core/appender/routing/Routes.java | 121 ++++++++++++-----
> > .../core/appender/routing/RoutingAppender.java | 19 ++-
> > .../routing/RoutesScriptAppenderTest.java | 130
> +++++++++++++++++++
> > .../log4j-routing-routes-script-groovy.xml | 43 ++++++
> > .../log4j-routing-routes-script-javascript.xml | 40 ++++++
> > src/site/xdoc/manual/appenders.xml | 27 +++-
> > 6 files changed, 340 insertions(+), 40 deletions(-)
> > ----------------------------------------------------------------------
> >
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/log4j-core/src/main/java/org/apache/logging/log4j/
> core/appender/routing/Routes.java
> > ----------------------------------------------------------------------
> > diff --git
> > a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/routing/Routes.java
> b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/Routes.java
> > index c95b64a..33fccd7 100644
> > --- a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/Routes.java
> > +++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/Routes.java
> > @@ -18,11 +18,17 @@ package org.apache.logging.log4j.core.
> appender.routing;
> >
> > import java.util.Objects;
> >
> > +import javax.script.SimpleBindings;
> > +
> > import org.apache.logging.log4j.Logger;
> > +import org.apache.logging.log4j.core.config.Configuration;
> > import org.apache.logging.log4j.core.config.plugins.Plugin;
> > import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
> > import org.apache.logging.log4j.core.config.plugins.
> PluginBuilderFactory;
> > +import org.apache.logging.log4j.core.config.plugins.
> PluginConfiguration;
> > import org.apache.logging.log4j.core.config.plugins.PluginElement;
> > +import org.apache.logging.log4j.core.config.plugins.validation.
> constraints.Required;
> > +import org.apache.logging.log4j.core.script.AbstractScript;
> > import org.apache.logging.log4j.status.StatusLogger;
> >
> > /**
> > @@ -33,54 +39,113 @@ public final class Routes {
> >
> > public static class Builder implements
> > org.apache.logging.log4j.core.util.Builder<Routes>
> {
> >
> > + @PluginConfiguration
> > + private Configuration configuration;
> > +
> > @PluginAttribute("pattern")
> > private String pattern;
> >
> > - @PluginElement("Routes")
> > + @PluginElement("Script")
> > + private AbstractScript patternScript;
> > +
> > + @PluginElement("Routes")
> > + @Required
> > private Route[] routes;
> >
> > @Override
> > public Routes build() {
> > if (routes == null || routes.length == 0) {
> > - LOGGER.error("No routes configured");
> > + LOGGER.error("No Routes configured.");
> > return null;
> > }
> > - return new Routes(pattern, routes);
> > + if (patternScript != null && pattern != null) {
> > + LOGGER.warn("In a Routes element, you must configure
> either a Script element or a pattern attribute.");
> > + }
> > + if (patternScript != null) {
> > + if (configuration == null) {
> > + LOGGER.error("No Configuration defined for Routes;
> required for Script");
> > + } else {
> > + configuration.getScriptManager().addScript(
> patternScript);
> > + }
> > + }
> > + return new Routes(configuration, patternScript, pattern,
> routes);
> > + }
> > +
> > + public Configuration getConfiguration() {
> > + return configuration;
> > }
> >
> > public String getPattern() {
> > return pattern;
> > }
> >
> > + public AbstractScript getPatternScript() {
> > + return patternScript;
> > + }
> > +
> > public Route[] getRoutes() {
> > return routes;
> > }
> >
> > - public Builder withPattern(@SuppressWarnings("hiding") String
> pattern) {
> > + public Builder withConfiguration(@SuppressWarnings("hiding")
> final Configuration configuration) {
> > + this.configuration = configuration;
> > + return this;
> > + }
> > +
> > + public Builder withPattern(@SuppressWarnings("hiding") final
> String pattern) {
> > this.pattern = pattern;
> > return this;
> > }
> >
> > - public Builder withRoutes(@SuppressWarnings("hiding") Route[]
> routes) {
> > + public Builder withPatternScript(@SuppressWarnings("hiding")
> final AbstractScript patternScript) {
> > + this.patternScript = patternScript;
> > + return this;
> > + }
> > +
> > + public Builder withRoutes(@SuppressWarnings("hiding") final
> Route[] routes) {
> > this.routes = routes;
> > return this;
> > }
> >
> > }
> >
> > + private static final Logger LOGGER = StatusLogger.getLogger();
> > +
> > + /**
> > + * Creates the Routes.
> > + * @param pattern The pattern.
> > + * @param routes An array of Route elements.
> > + * @return The Routes container.
> > + * @deprecated since 2.7; use {@link #newBuilder()}.
> > + */
> > + @Deprecated
> > + public static Routes createRoutes(
> > + final String pattern,
> > + final Route... routes) {
> > + if (routes == null || routes.length == 0) {
> > + LOGGER.error("No routes configured");
> > + return null;
> > + }
> > + return new Routes(null, null, pattern, routes);
> > + }
> > +
> > @PluginBuilderFactory
> > public static Builder newBuilder() {
> > return new Builder();
> > }
> > -
> > - private static final Logger LOGGER = StatusLogger.getLogger();
> > -
> > +
> > + private final Configuration configuration;
> > +
> > private final String pattern;
> >
> > + private final AbstractScript patternScript;
> > +
> > // TODO Why not make this a Map or add a Map.
> > private final Route[] routes;
> >
> > - private Routes(final String pattern, final Route... routes) {
> > + private Routes(final Configuration configuration, final
> AbstractScript patternScript, final String pattern, final Route... routes) {
> > + this.configuration = configuration;
> > + this.patternScript = patternScript;
> > this.pattern = pattern;
> > this.routes = routes;
> > }
> > @@ -90,12 +155,26 @@ public final class Routes {
> > * @return the pattern.
> > */
> > public String getPattern() {
> > + if (patternScript != null) {
> > + final SimpleBindings bindings = new SimpleBindings();
> > + bindings.put("configuration", configuration);
> > + bindings.put("statusLogger", LOGGER);
> > + final Object object = configuration.
> getScriptManager().execute(patternScript.getName(), bindings);
> > + return Objects.toString(object, null);
> > + }
> > return pattern;
> > }
> >
> > - public Route getRoute(String key) {
> > - for (int i = 0; i < routes.length; i++) {
> > - final Route route = routes[i];
> > + /**
> > + * Gets the optional script that decides which route to pick.
> > + * @return the optional script that decides which route to pick.
> May be null.
> > + */
> > + public AbstractScript getPatternScript() {
> > + return patternScript;
> > + }
> > +
> > + public Route getRoute(final String key) {
> > + for (final Route route : routes) {
> > if (Objects.equals(route.getKey(), key)) {
> > return route;
> > }
> > @@ -127,22 +206,4 @@ public final class Routes {
> >
> > }
> >
> > - /**
> > - * Creates the Routes.
> > - * @param pattern The pattern.
> > - * @param routes An array of Route elements.
> > - * @return The Routes container.
> > - * @deprecated since 2.7; use {@link #newBuilder()}.
> > - */
> > - @Deprecated
> > - public static Routes createRoutes(
> > - final String pattern,
> > - final Route... routes) {
> > - if (routes == null || routes.length == 0) {
> > - LOGGER.error("No routes configured");
> > - return null;
> > - }
> > - return new Routes(pattern, routes);
> > - }
> > -
> > }
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/log4j-core/src/main/java/org/apache/logging/log4j/
> core/appender/routing/RoutingAppender.java
> > ----------------------------------------------------------------------
> > diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/RoutingAppender.java b/log4j-core/src/main/java/
> org/apache/logging/log4j/core/appender/routing/RoutingAppender.java
> > index 4471333..78fddbc 100644
> > --- a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/RoutingAppender.java
> > +++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/routing/RoutingAppender.java
> > @@ -72,15 +72,16 @@ public final class RoutingAppender extends
> AbstractAppender {
> >
> > @Override
> > public RoutingAppender build() {
> > - if (getName() == null) {
> > - LOGGER.error("No name defined for RoutingAppender");
> > + final String name = getName();
> > + if (name == null) {
> > + LOGGER.error("No name defined for this
> RoutingAppender");
> > return null;
> > }
> > if (routes == null) {
> > - LOGGER.error("No routes defined for RoutingAppender");
> > + LOGGER.error("No routes defined for RoutingAppender
> {}", name);
> > return null;
> > }
> > - return new RoutingAppender(getName(), getFilter(),
> isIgnoreExceptions(), routes, rewritePolicy,
> > + return new RoutingAppender(name, getFilter(),
> isIgnoreExceptions(), routes, rewritePolicy,
> > configuration, purgePolicy, defaultRouteScript);
> > }
> >
> > @@ -173,7 +174,7 @@ public final class RoutingAppender extends
> AbstractAppender {
> > public void start() {
> > if (defaultRouteScript != null) {
> > if (configuration == null) {
> > - error("No Configuration defined for RoutingAppender;
> required for DefaultRouteScript");
> > + error("No Configuration defined for RoutingAppender;
> required for Script element.");
> > } else {
> > configuration.getScriptManager().addScript(
> defaultRouteScript);
> > final SimpleBindings bindings = new SimpleBindings();
> > @@ -352,4 +353,12 @@ public final class RoutingAppender extends
> AbstractAppender {
> > public RewritePolicy getRewritePolicy() {
> > return rewritePolicy;
> > }
> > +
> > + public Routes getRoutes() {
> > + return routes;
> > + }
> > +
> > + public Configuration getConfiguration() {
> > + return configuration;
> > + }
> > }
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/routing/RoutesScriptAppenderTest.java
> > ----------------------------------------------------------------------
> > diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> appender/routing/RoutesScriptAppenderTest.java b/log4j-core/src/test/java/
> org/apache/logging/log4j/core/appender/routing/
> RoutesScriptAppenderTest.java
> > new file mode 100644
> > index 0000000..7d90f6b
> > --- /dev/null
> > +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/
> appender/routing/RoutesScriptAppenderTest.java
> > @@ -0,0 +1,130 @@
> > +/*
> > + * Licensed to the Apache Software Foundation (ASF) under one or more
> > + * contributor license agreements. See the NOTICE file distributed with
> > + * this work for additional information regarding copyright ownership.
> > + * The ASF licenses this file to You under the Apache license, Version
> 2.0
> > + * (the "License"); you may not use this file except in compliance with
> > + * the License. You may obtain a copy of the License at
> > + *
> > + * http://www.apache.org/licenses/LICENSE-2.0
> > + *
> > + * Unless required by applicable law or agreed to in writing, software
> > + * distributed under the License is distributed on an "AS IS" BASIS,
> > + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> implied.
> > + * See the license for the specific language governing permissions and
> > + * limitations under the license.
> > + */
> > +package org.apache.logging.log4j.core.appender.routing;
> > +
> > +import static org.junit.Assert.assertNotNull;
> > +import static org.junit.Assert.assertTrue;
> > +
> > +import java.util.List;
> > +import java.util.Map;
> > +
> > +import org.apache.logging.log4j.core.LogEvent;
> > +import org.apache.logging.log4j.core.Logger;
> > +import org.apache.logging.log4j.core.config.AppenderControl;
> > +import org.apache.logging.log4j.junit.LoggerContextRule;
> > +import org.apache.logging.log4j.test.appender.ListAppender;
> > +import org.junit.Assert;
> > +import org.junit.Rule;
> > +import org.junit.Test;
> > +import org.junit.runner.RunWith;
> > +import org.junit.runners.Parameterized;
> > +
> > +/**
> > + *
> > + */
> > +@RunWith(Parameterized.class)
> > +public class RoutesScriptAppenderTest {
> > +
> > + @Parameterized.Parameters(name = "{0}")
> > + public static String[] getParameters() {
> > + return new String[] {
> > + "log4j-routing-routes-script-groovy.xml",
> > + "log4j-routing-routes-script-javascript.xml" };
> > + }
> > +
> > + @Rule
> > + public final LoggerContextRule loggerContextRule;
> > +
> > + public RoutesScriptAppenderTest(final String configLocation) {
> > + this.loggerContextRule = new LoggerContextRule(configLocation);
> > + }
> > +
> > + private ListAppender getListAppender() {
> > + final String key = "Service2";
> > + final RoutingAppender routingAppender = getRoutingAppender();
> > + Assert.assertTrue(routingAppender.isStarted());
> > + final Map<String, AppenderControl> appenders =
> routingAppender.getAppenders();
> > + final AppenderControl appenderControl = appenders.get(key);
> > + assertNotNull("No appender control generated for '" + key + "';
> appenders = " + appenders, appenderControl);
> > + final ListAppender listAppender = (ListAppender)
> appenderControl.getAppender();
> > + return listAppender;
> > + }
> > +
> > + private RoutingAppender getRoutingAppender() {
> > + return loggerContextRule.getRequiredAppender("Routing",
> RoutingAppender.class);
> > + }
> > +
> > + private void logAndCheck() {
> > + final Logger logger = loggerContextRule.getLogger(
> RoutesScriptAppenderTest.class);
> > + logger.error("Hello");
> > + final ListAppender listAppender = getListAppender();
> > + final List<LogEvent> list = listAppender.getEvents();
> > + assertNotNull("No events generated", list);
> > + assertTrue("Incorrect number of events. Expected 1, got " +
> list.size(), list.size() == 1);
> > + logger.error("World");
> > + assertTrue("Incorrect number of events. Expected 2, got " +
> list.size(), list.size() == 2);
> > + }
> > +
> > + @Test(expected = AssertionError.class)
> > + public void testAppenderAbsence() {
> > + loggerContextRule.getListAppender("List1");
> > + }
> > +
> > + @Test
> > + public void testListAppenderPresence() {
> > + // No appender until an event is routed, even thought we
> initialized the default route on startup.
> > + Assert.assertNull("No appender control generated",
> getRoutingAppender().getAppenders().get("Service2"));
> > + }
> > +
> > + @Test
> > + public void testNoPurgePolicy() {
> > + // No PurgePolicy in this test
> > + Assert.assertNull("Unexpected PurgePolicy",
> getRoutingAppender().getPurgePolicy());
> > + }
> > +
> > + @Test
> > + public void testNoRewritePolicy() {
> > + // No RewritePolicy in this test
> > + Assert.assertNull("Unexpected RewritePolicy",
> getRoutingAppender().getRewritePolicy());
> > + }
> > +
> > + @Test
> > + public void testRoutingAppenderRoutes() {
> > + final RoutingAppender routingAppender = getRoutingAppender();
> > + Assert.assertNull(routingAppender.getDefaultRouteScript());
> > + Assert.assertNull(routingAppender.getDefaultRoute());
> > + final Routes routes = routingAppender.getRoutes();
> > + Assert.assertNotNull(routes);
> > + Assert.assertNotNull(routes.getPatternScript());
> > + Assert.assertEquals("Service2", routes.getPattern());
> > + }
> > +
> > + @Test
> > + public void testRoutingAppenderPresence() {
> > + getRoutingAppender();
> > + }
> > +
> > + @Test
> > + public void testRoutingPresence1() {
> > + logAndCheck();
> > + }
> > +
> > + @Test
> > + public void testRoutingPresence2() {
> > + logAndCheck();
> > + }
> > +}
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/log4j-core/src/test/resources/log4j-routing-
> routes-script-groovy.xml
> > ----------------------------------------------------------------------
> > diff --git
> > a/log4j-core/src/test/resources/log4j-routing-routes-script-groovy.xml
> b/log4j-core/src/test/resources/log4j-routing-routes-script-groovy.xml
> > new file mode 100644
> > index 0000000..83121ea
> > --- /dev/null
> > +++ b/log4j-core/src/test/resources/log4j-routing-
> routes-script-groovy.xml
> > @@ -0,0 +1,43 @@
> > +<?xml version="1.0" encoding="UTF-8"?>
> > +<!--
> > + Licensed to the Apache Software Foundation (ASF) under one or more
> > + contributor license agreements. See the NOTICE file distributed with
> > + this work for additional information regarding copyright ownership.
> > + The ASF licenses this file to You under the Apache License, Version 2.0
> > + (the "License"); you may not use this file except in compliance with
> > + the License. You may obtain a copy of the License at
> > +
> > + http://www.apache.org/licenses/LICENSE-2.0
> > +
> > + Unless required by applicable law or agreed to in writing, software
> > + distributed under the License is distributed on an "AS IS" BASIS,
> > + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> implied.
> > + See the License for the specific language governing permissions and
> > + limitations under the License.
> > +
> > +-->
> > +<Configuration status="WARN" name="RoutingTest">
> > + <Appenders>
> > + <Routing name="Routing">
> > + <Routes>
> > + <Script name="RoutingInit" language="groovy"><![CDATA[
> > + if ("OSNameFoo".contains("Foo")) {
> > + return "Service2";
> > + }
> > + return "Service1";]]>
> > + </Script>
> > + <Route key="Service1">
> > + <List name="List1" />
> > + </Route>
> > + <Route key="Service2">
> > + <List name="List2" />
> > + </Route>
> > + </Routes>
> > + </Routing>
> > + </Appenders>
> > + <Loggers>
> > + <Root level="error">
> > + <AppenderRef ref="Routing" />
> > + </Root>
> > + </Loggers>
> > +</Configuration>
> > \ No newline at end of file
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/log4j-core/src/test/resources/log4j-routing-
> routes-script-javascript.xml
> > ----------------------------------------------------------------------
> > diff --git
> > a/log4j-core/src/test/resources/log4j-routing-routes-script-javascript.xml
> b/log4j-core/src/test/resources/log4j-routing-routes-script-javascript.xml
> > new file mode 100644
> > index 0000000..e672aea
> > --- /dev/null
> > +++ b/log4j-core/src/test/resources/log4j-routing-
> routes-script-javascript.xml
> > @@ -0,0 +1,40 @@
> > +<?xml version="1.0" encoding="UTF-8"?>
> > +<!--
> > + Licensed to the Apache Software Foundation (ASF) under one or more
> > + contributor license agreements. See the NOTICE file distributed with
> > + this work for additional information regarding copyright ownership.
> > + The ASF licenses this file to You under the Apache License, Version 2.0
> > + (the "License"); you may not use this file except in compliance with
> > + the License. You may obtain a copy of the License at
> > +
> > + http://www.apache.org/licenses/LICENSE-2.0
> > +
> > + Unless required by applicable law or agreed to in writing, software
> > + distributed under the License is distributed on an "AS IS" BASIS,
> > + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
> implied.
> > + See the License for the specific language governing permissions and
> > + limitations under the License.
> > +
> > +-->
> > +<Configuration status="WARN" name="RoutingTest">
> > + <Appenders>
> > + <Routing name="Routing">
> > + <Routes>
> > + <Script name="RoutingInit" language="JavaScript"><![CDATA[
> > + "OSNameFoo".search("Foo") > -1 ? "Service2" : "Service1";]]>
> > + </Script>
> > + <Route key="Service1">
> > + <List name="List1" />
> > + </Route>
> > + <Route key="Service2">
> > + <List name="List2" />
> > + </Route>
> > + </Routes>
> > + </Routing>
> > + </Appenders>
> > + <Loggers>
> > + <Root level="error">
> > + <AppenderRef ref="Routing" />
> > + </Root>
> > + </Loggers>
> > +</Configuration>
> > \ No newline at end of file
> >
> > http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> e0f29d9a/src/site/xdoc/manual/appenders.xml
> > ----------------------------------------------------------------------
> > diff --git a/src/site/xdoc/manual/appenders.xml b/src/site/xdoc/manual/
> appenders.xml
> > index 2d3d361..a87d9b7 100644
> > --- a/src/site/xdoc/manual/appenders.xml
> > +++ b/src/site/xdoc/manual/appenders.xml
> > @@ -3279,7 +3279,11 @@ public class JpaLogEntity extends
> AbstractLogEventWrapperEntity {
> > Appender may be an appender previously configured and may
> be referenced by its name or the
> > Appender can be dynamically created as needed. The
> RoutingAppender should be configured after any
> > Appenders it references to allow it to shut down properly.
> > - </p>
> > + </p>
> > + <p>
> > + You can also configure a RoutingAppender with scripts: you
> can run a script when the appender starts
> > + and when a route is chosen for an log event.
> > + </p>
> > <table>
> > <caption align="top">RoutingAppender Parameters</caption>
> > <tr>
> > @@ -3288,7 +3292,7 @@ public class JpaLogEntity extends
> AbstractLogEventWrapperEntity {
> > <th>Description</th>
> > </tr>
> > <tr>
> > - <td>filter</td>
> > + <td>Filter</td>
> > <td>Filter</td>
> > <td>A Filter to determine if the event should be handled
> by this Appender. More than one Filter
> > may be used by using a CompositeFilter.</td>
> > @@ -3299,16 +3303,22 @@ public class JpaLogEntity extends
> AbstractLogEventWrapperEntity {
> > <td>The name of the Appender.</td>
> > </tr>
> > <tr>
> > - <td>rewritePolicy</td>
> > + <td>RewritePolicy</td>
> > <td>RewritePolicy</td>
> > <td>The RewritePolicy that will manipulate the
> LogEvent.</td>
> > </tr>
> > <tr>
> > - <td>routes</td>
> > + <td>Routes</td>
> > <td>Routes</td>
> > <td>Contains one or more Route declarations to identify
> the criteria for choosing Appenders.</td>
> > </tr>
> > <tr>
> > + <td>Script</td>
> > + <td>Script</td>
> > + <td>This Script runs when Log4j starts the
> RoutingAppender and returns a String Route key to determine
> > + the default Route.</td>
> > + </tr>
> > + <tr>
> > <td>ignoreExceptions</td>
> > <td>boolean</td>
> > <td>The default is <code>true</code>, causing exceptions
> encountered while appending events to be
> > @@ -3319,13 +3329,20 @@ public class JpaLogEntity extends
> AbstractLogEventWrapperEntity {
> > </table>
> > <h4>Routes</h4>
> > <p>
> > - The Routes element accepts a single, required attribute
> named "pattern". The pattern is evaluated
> > + The Routes element accepts a single attribute named
> "pattern". The pattern is evaluated
> > against all the registered Lookups and the result is used
> to select a Route. Each Route may be
> > configured with a key. If the key matches the result of
> evaluating the pattern then that Route
> > will be selected. If no key is specified on a Route then
> that Route is the default. Only one Route
> > can be configured as the default.
> > </p>
> > <p>
> > + The Routes element may contain a Script child element. If
> specified, the Script is run for each
> > + log event and returns the String Route key to use.
> > + </p>
> > + <p>
> > + You must specify either the pattern attribute or the
> Script element, but not both.
> > + </p>
> > + <p>
> > Each Route must reference an Appender. If the Route
> contains a ref attribute then the
> > Route will reference an Appender that was defined in the
> configuration. If the Route contains an
> > Appender definition then an Appender will be created
> within the context of the RoutingAppender and
> >
> >
>
>
>
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