Refactor constants.
diff --git a/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/LevelCodec.java b/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/LevelCodec.java
index 9bbc0b0..f900863 100644
--- a/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/LevelCodec.java
+++ b/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/LevelCodec.java
@@ -29,6 +29,13 @@
*/
public class LevelCodec implements Codec<Level> {
+ /**
+ * The singleton instance.
+ *
+ * @since 2.14.0
+ */
+ public static final LevelCodec INSTANCE = new LevelCodec();
+
@Override
public Level decode(final BsonReader reader, final DecoderContext decoderContext) {
return Level.getLevel(reader.readString());
diff --git a/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/MongoDbProvider.java b/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/MongoDbProvider.java
index fc60344..c329d13 100644
--- a/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/MongoDbProvider.java
+++ b/log4j-mongodb3/src/main/java/org/apache/logging/log4j/mongodb3/MongoDbProvider.java
@@ -16,12 +16,9 @@
*/
package org.apache.logging.log4j.mongodb3;
-import com.mongodb.MongoClient;
-import com.mongodb.MongoClientOptions;
-import com.mongodb.MongoCredential;
-import com.mongodb.ServerAddress;
-import com.mongodb.WriteConcern;
-import com.mongodb.client.MongoDatabase;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.Core;
import org.apache.logging.log4j.core.appender.nosql.NoSqlProvider;
@@ -38,9 +35,14 @@
import org.apache.logging.log4j.util.NameUtil;
import org.apache.logging.log4j.util.Strings;
import org.bson.codecs.configuration.CodecRegistries;
+import org.bson.codecs.configuration.CodecRegistry;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoClientOptions;
+import com.mongodb.MongoCredential;
+import com.mongodb.ServerAddress;
+import com.mongodb.WriteConcern;
+import com.mongodb.client.MongoDatabase;
/**
* The MongoDB implementation of {@link NoSqlProvider} using the MongoDB driver version 3 API.
@@ -51,6 +53,12 @@
public static class Builder<B extends Builder<B>> extends AbstractFilterable.Builder<B>
implements org.apache.logging.log4j.plugins.util.Builder<MongoDbProvider> {
+ // @formatter:off
+ private static final CodecRegistry CODEC_REGISTRIES = CodecRegistries.fromRegistries(
+ CodecRegistries.fromCodecs(LevelCodec.INSTANCE),
+ MongoClient.getDefaultCodecRegistry());
+ // @formatter:on
+
private static WriteConcern toWriteConcern(final String writeConcernConstant,
final String writeConcernConstantClassName) {
WriteConcern writeConcern;
@@ -179,9 +187,7 @@
final WriteConcern writeConcern = toWriteConcern(writeConcernConstant, writeConcernConstantClassName);
// @formatter:off
final MongoClientOptions options = MongoClientOptions.builder()
- .codecRegistry(CodecRegistries.fromRegistries(
- CodecRegistries.fromCodecs(new LevelCodec()),
- MongoClient.getDefaultCodecRegistry()))
+ .codecRegistry(CODEC_REGISTRIES)
.writeConcern(writeConcern)
.build();
// @formatter:on
