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new 9a28db3 LOG4J2-2973 Rename EventTemplateAdditionalField#type
(conflicting with properties file parser) to #format. (#462)
9a28db3 is described below
commit 9a28db32cc78a475598af5f861fd4f270c8ffd6f
Author: Fabricc <[email protected]>
AuthorDate: Wed Feb 3 09:41:48 2021 +0100
LOG4J2-2973 Rename EventTemplateAdditionalField#type (conflicting with
properties file parser) to #format. (#462)
---
.../layout/template/json/JsonTemplateLayout.java | 24 ++++++-------
.../template/json/resolver/TemplateResolvers.java | 6 ++--
...onTemplateLayoutAdditionalFieldTestHelper.java} | 34 +++---------------
...emplateLayoutAdditionalFieldTestProperties.java | 34 ++++++++++++++++++
.../JsonTemplateLayoutAdditionalFieldTestXML.java | 33 ++++++++++++++++++
.../JsonTemplateLayoutAdditionalFieldTestYAML.java | 34 ++++++++++++++++++
.../template/json/JsonTemplateLayoutTest.java | 4 +--
...eldEnrichedJsonTemplateLayoutLogging.properties | 40 ++++++++++++++++++++++
...ionalFieldEnrichedJsonTemplateLayoutLogging.xml | 6 ++--
...onalFieldEnrichedJsonTemplateLayoutLogging.yaml | 39 +++++++++++++++++++++
src/changes/changes.xml | 3 ++
...layout.adoc.vm => json-template-layout.vm.adoc} | 26 +++++++++++---
12 files changed, 229 insertions(+), 54 deletions(-)
diff --git
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayout.java
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayout.java
index 1003599..25656bb 100644
---
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayout.java
+++
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayout.java
@@ -531,18 +531,18 @@ public class JsonTemplateLayout implements StringLayout {
printObject = true)
public static final class EventTemplateAdditionalField {
- public enum Type { STRING, JSON }
+ public enum Format { STRING, JSON }
private final String key;
private final String value;
- private final Type type;
+ private final Format format;
private EventTemplateAdditionalField(final Builder builder) {
this.key = builder.key;
this.value = builder.value;
- this.type = builder.type;
+ this.format = builder.format;
}
public String getKey() {
@@ -553,8 +553,8 @@ public class JsonTemplateLayout implements StringLayout {
return value;
}
- public Type getType() {
- return type;
+ public Format getFormat() {
+ return format;
}
@Override
@@ -568,17 +568,17 @@ public class JsonTemplateLayout implements StringLayout {
EventTemplateAdditionalField that = (EventTemplateAdditionalField)
object;
return key.equals(that.key) &&
value.equals(that.value) &&
- type == that.type;
+ format == that.format;
}
@Override
public int hashCode() {
- return Objects.hash(key, value, type);
+ return Objects.hash(key, value, format);
}
@Override
public String toString() {
- final String formattedValue = Type.STRING.equals(type)
+ final String formattedValue = Format.STRING.equals(format)
? String.format("\"%s\"", value)
: value;
return String.format("%s=%s", key, formattedValue);
@@ -599,7 +599,7 @@ public class JsonTemplateLayout implements StringLayout {
private String value;
@PluginBuilderAttribute
- private Type type = Type.STRING;
+ private Format format = Format.STRING;
public Builder setKey(final String key) {
this.key = key;
@@ -611,8 +611,8 @@ public class JsonTemplateLayout implements StringLayout {
return this;
}
- public Builder setType(final Type type) {
- this.type = type;
+ public Builder setFormat(final Format format) {
+ this.format = format;
return this;
}
@@ -629,7 +629,7 @@ public class JsonTemplateLayout implements StringLayout {
if (Strings.isBlank(value)) {
throw new IllegalArgumentException("blank value");
}
- Objects.requireNonNull(type, "type");
+ Objects.requireNonNull(format, "format");
}
}
diff --git
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/resolver/TemplateResolvers.java
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/resolver/TemplateResolvers.java
index d713edd..b0cede2 100644
---
a/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/resolver/TemplateResolvers.java
+++
b/log4j-layout-template-json/src/main/java/org/apache/logging/log4j/layout/template/json/resolver/TemplateResolvers.java
@@ -129,7 +129,7 @@ public final class TemplateResolvers {
for (final EventTemplateAdditionalField additionalField :
additionalFields) {
final String additionalFieldKey = additionalField.getKey();
final Object additionalFieldValue;
- switch (additionalField.getType()) {
+ switch (additionalField.getFormat()) {
case STRING:
additionalFieldValue = additionalField.getValue();
break;
@@ -145,8 +145,8 @@ public final class TemplateResolvers {
break;
default: {
final String message = String.format(
- "unknown type %s for additional field: %s",
- additionalFieldKey, additionalField.getType());
+ "unknown format %s for additional field: %s",
+ additionalFieldKey,
additionalField.getFormat());
throw new IllegalArgumentException(message);
}
}
diff --git
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTest.java
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestHelper.java
similarity index 54%
rename from
log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTest.java
rename to
log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestHelper.java
index 465bcc6..605cc3a 100644
---
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTest.java
+++
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestHelper.java
@@ -1,47 +1,23 @@
-/*
- * 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.layout.template.json;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.LoggerContext;
-import org.apache.logging.log4j.junit.LoggerContextSource;
-import org.apache.logging.log4j.junit.Named;
import org.apache.logging.log4j.layout.template.json.util.JsonReader;
import org.apache.logging.log4j.test.appender.ListAppender;
import org.assertj.core.api.Assertions;
-import org.junit.jupiter.api.Test;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
-@LoggerContextSource("additionalFieldEnrichedJsonTemplateLayoutLogging.xml")
-class JsonTemplateLayoutAdditionalFieldTest {
-
- @Test
- void test_additional_fields_are_resolved(
- final LoggerContext loggerContext,
- @Named("List") final ListAppender appender) {
+class JsonTemplateLayoutAdditionalFieldTestHelper {
+ static void assertAdditionalFields(final LoggerContext loggerContext,
ListAppender appender) {
// Log an event.
final Logger logger =
loggerContext.getLogger(
- JsonTemplateLayoutAdditionalFieldTest.class);
+ JsonTemplateLayoutAdditionalFieldTestHelper.class);
logger.info("trigger");
// Verify that the appender has logged the event.
@@ -56,8 +32,7 @@ class JsonTemplateLayoutAdditionalFieldTest {
JsonTemplateLayoutDefaults.getCharset());
final Object serializedEventObject =
JsonReader.read(serializedEventJson);
Assertions.assertThat(serializedEventObject).isInstanceOf(Map.class);
- @SuppressWarnings("unchecked")
- final Map<String, Object> serializedEventMap =
+ @SuppressWarnings("unchecked") final Map<String, Object>
serializedEventMap =
(Map<String, Object>) serializedEventObject;
// Verify the serialized additional fields.
@@ -69,5 +44,4 @@ class JsonTemplateLayoutAdditionalFieldTest {
.containsEntry("listField", Arrays.asList(1, "two"));
}
-
}
diff --git
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestProperties.java
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestProperties.java
new file mode 100644
index 0000000..5c3911e
--- /dev/null
+++
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestProperties.java
@@ -0,0 +1,34 @@
+/*
+ * 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.layout.template.json;
+
+import org.apache.logging.log4j.core.LoggerContext;
+import org.apache.logging.log4j.junit.LoggerContextSource;
+import org.apache.logging.log4j.junit.Named;
+import org.apache.logging.log4j.test.appender.ListAppender;
+import org.junit.jupiter.api.Test;
+
+@LoggerContextSource("additionalFieldEnrichedJsonTemplateLayoutLogging.properties")
+class JsonTemplateLayoutAdditionalFieldTestProperties {
+
+ @Test
+ void test_additional_fields_are_resolved(
+ final LoggerContext loggerContext,
+ final @Named(value = "List") ListAppender appender) {
+
JsonTemplateLayoutAdditionalFieldTestHelper.assertAdditionalFields(loggerContext,
appender);
+ }
+}
diff --git
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestXML.java
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestXML.java
new file mode 100644
index 0000000..d96da36
--- /dev/null
+++
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestXML.java
@@ -0,0 +1,33 @@
+/*
+ * 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.layout.template.json;
+
+import org.apache.logging.log4j.core.LoggerContext;
+import org.apache.logging.log4j.junit.LoggerContextSource;
+import org.apache.logging.log4j.junit.Named;
+import org.apache.logging.log4j.test.appender.ListAppender;
+import org.junit.jupiter.api.Test;
+
+@LoggerContextSource("additionalFieldEnrichedJsonTemplateLayoutLogging.xml")
+class JsonTemplateLayoutAdditionalFieldTestXML {
+ @Test
+ void test_additional_fields_are_resolved(
+ final LoggerContext loggerContext,
+ final @Named(value = "List") ListAppender appender) {
+
JsonTemplateLayoutAdditionalFieldTestHelper.assertAdditionalFields(loggerContext,
appender);
+ }
+}
diff --git
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestYAML.java
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestYAML.java
new file mode 100644
index 0000000..204ead8
--- /dev/null
+++
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutAdditionalFieldTestYAML.java
@@ -0,0 +1,34 @@
+/*
+ * 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.layout.template.json;
+
+import org.apache.logging.log4j.core.LoggerContext;
+import org.apache.logging.log4j.junit.LoggerContextSource;
+import org.apache.logging.log4j.junit.Named;
+import org.apache.logging.log4j.test.appender.ListAppender;
+import org.junit.jupiter.api.Test;
+
+@LoggerContextSource("additionalFieldEnrichedJsonTemplateLayoutLogging.yaml")
+class JsonTemplateLayoutAdditionalFieldTestYAML {
+
+ @Test
+ void test_additional_fields_are_resolved(
+ final LoggerContext loggerContext,
+ final @Named(value = "List") ListAppender appender) {
+
JsonTemplateLayoutAdditionalFieldTestHelper.assertAdditionalFields(loggerContext,
appender);
+ }
+}
diff --git
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutTest.java
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutTest.java
index 68152ea..81bead0 100644
---
a/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutTest.java
+++
b/log4j-layout-template-json/src/test/java/org/apache/logging/log4j/layout/template/json/JsonTemplateLayoutTest.java
@@ -1359,7 +1359,7 @@ class JsonTemplateLayoutTest {
.newBuilder()
.setKey("number")
.setValue("1")
- .setType(EventTemplateAdditionalField.Type.JSON)
+ .setFormat(EventTemplateAdditionalField.Format.JSON)
.build(),
EventTemplateAdditionalField
.newBuilder()
@@ -1370,7 +1370,7 @@ class JsonTemplateLayoutTest {
.newBuilder()
.setKey("level")
.setValue("{\"$resolver\": \"level\", \"field\":
\"name\"}")
- .setType(EventTemplateAdditionalField.Type.JSON)
+ .setFormat(EventTemplateAdditionalField.Format.JSON)
.build()
};
final JsonTemplateLayout layout = JsonTemplateLayout
diff --git
a/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.properties
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.properties
new file mode 100644
index 0000000..58e65ba
--- /dev/null
+++
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.properties
@@ -0,0 +1,40 @@
+# 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.
+
+appender.list.name = List
+appender.list.type = List
+appender.list.raw = true
+appender.list.layout.type = JsonTemplateLayout
+appender.list.layout.charset = UTF-8
+appender.list.layout.extra[0].key = stringField
+appender.list.layout.extra[0].value = string
+appender.list.layout.extra[0].type = EventTemplateAdditionalField
+appender.list.layout.extra[0].format = STRING
+appender.list.layout.extra[1].key = numberField
+appender.list.layout.extra[1].value = 1
+appender.list.layout.extra[1].format = JSON
+appender.list.layout.extra[1].type = EventTemplateAdditionalField
+appender.list.layout.extra[2].key = objectField
+appender.list.layout.extra[2].value = {"numberField":1}
+appender.list.layout.extra[2].format = JSON
+appender.list.layout.extra[2].type = EventTemplateAdditionalField
+appender.list.layout.extra[3].key = listField
+appender.list.layout.extra[3].value = [1, "two"]
+appender.list.layout.extra[3].format = JSON
+appender.list.layout.extra[3].type = EventTemplateAdditionalField
+
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = List
+
diff --git
a/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.xml
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.xml
index 3449c6d..b27bfde 100644
---
a/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.xml
+++
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.xml
@@ -20,9 +20,9 @@
<List name="List" raw="true">
<JsonTemplateLayout>
<EventTemplateAdditionalField key="stringField" value="string"/>
- <EventTemplateAdditionalField key="numberField" value="1" type="JSON"/>
- <EventTemplateAdditionalField key="objectField"
value='{"numberField":1}' type="JSON"/>
- <EventTemplateAdditionalField key="listField" value='[1, "two"]'
type="JSON"/>
+ <EventTemplateAdditionalField key="numberField" value="1"
format="JSON"/>
+ <EventTemplateAdditionalField key="objectField"
value='{"numberField":1}' format="JSON"/>
+ <EventTemplateAdditionalField key="listField" value='[1, "two"]'
format="JSON"/>
</JsonTemplateLayout>
</List>
</Appenders>
diff --git
a/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.yaml
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.yaml
new file mode 100644
index 0000000..676b3ce
--- /dev/null
+++
b/log4j-layout-template-json/src/test/resources/additionalFieldEnrichedJsonTemplateLayoutLogging.yaml
@@ -0,0 +1,39 @@
+# 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: OFF
+ appenders:
+ List:
+ name: "List"
+ raw: "true"
+ JsonTemplateLayout:
+ EventTemplateadditionalField:
+ - key: "stringField"
+ value: "string"
+ - key: "numberField"
+ value: "1"
+ format: "JSON"
+ - key: "objectField"
+ value: '{"numberField":1}'
+ format: "JSON"
+ - key: "listField"
+ value: '[1, "two"]'
+ format: "JSON"
+ loggers:
+ root:
+ level: "trace"
+ AppenderRef:
+ ref: List
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 3883f39..2b33676 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -31,6 +31,9 @@
- "remove" - Removed
-->
<release version="3.0.0" date="2021-MM-DD" description="GA Release 3.0.0">
+ <action issue="LOG4J2-2973" dev="fricchiuti" typ="fix">
+ Rename EventTemplateAdditionalField#type (conflicting with properties
file parser) to "format"
+ </action>
<action issue="LOG4J2-2999" dev="vy" type="add">
Replace JsonTemplateLayout resolver configurations table in docs with
sections.
</action>
diff --git a/src/site/asciidoc/manual/json-template-layout.adoc.vm
b/src/site/asciidoc/manual/json-template-layout.vm.adoc
similarity index 97%
rename from src/site/asciidoc/manual/json-template-layout.adoc.vm
rename to src/site/asciidoc/manual/json-template-layout.vm.adoc
index fdc6534..d3f700c 100644
--- a/src/site/asciidoc/manual/json-template-layout.adoc.vm
+++ b/src/site/asciidoc/manual/json-template-layout.vm.adoc
@@ -256,25 +256,43 @@ custom fields:
</JsonTemplateLayout>
----
-The default `type` for the added new fields are `String`.
+The default `format` for the added new fields are `String`.
One can also pass JSON literals into additional fields:
[source,xml]
----
<EventTemplateAdditionalField
key="marker"
- type="JSON"
+ format="JSON"
value='{"$resolver": "marker", "field": "name"}'/>
<EventTemplateAdditionalField
key="aNumber"
- type="JSON"
+ format="JSON"
value="1"/>
<EventTemplateAdditionalField
key="aList"
- type="JSON"
+ format="JSON"
value='[1,2,"string"]'/>
----
+When using a configuration file with a `.properties` extension, additional
fields can be added as follows:
+
+[source, properties]
+----
+appender.console.layout.extra[0].key = marker
+appender.console.layout.extra[0].value = {"$resolver": "marker", "field":
"name"}
+appender.console.layout.extra[0].format = JSON
+appender.console.layout.extra[0].type = EventTemplateAdditionalField
+appender.console.layout.extra[1].key = aNumber
+appender.console.layout.extra[1].value = 1
+appender.console.layout.extra[1].format = JSON
+appender.console.layout.extra[1].type = EventTemplateAdditionalField
+appender.console.layout.extra[2].key = aList
+appender.console.layout.extra[2].value = [1,2,"string"]
+appender.console.layout.extra[2].format = JSON
+appender.console.layout.extra[2].type = EventTemplateAdditionalField
+----
+
[#recycling-strategy]
=== Recycling strategy
