DBZ-7024 Move EmbeddedConfig into separate class

`EmbeddedConfig` needs to be shared with other implmentations of
`DebeziumEngine` as long as Debezium embedded depends on the Kafka
model.

debezium-connector-mongodb/src/test/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-            name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+            name="io.debezium.embedded.EmbeddedWorkerConfig"
             level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-connector-mysql/src/test/resources/logback-test.xml

@@ -26,7 +26,7 @@
     </logger>
 
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-connector-oracle/src/test/resources/logback-test.xml

@@ -27,7 +27,7 @@
     </logger>
 
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-connector-postgres/src/test/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-connector-sqlserver/src/test/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-embedded/src/main/java/io/debezium/embedded/EmbeddedEngine.java

@@ -27,7 +27,6 @@
 import java.util.stream.Collectors;
 
 import org.apache.kafka.common.config.Config;
-import org.apache.kafka.common.config.ConfigDef;
 import org.apache.kafka.connect.connector.ConnectorContext;
 import org.apache.kafka.connect.connector.Task;
 import org.apache.kafka.connect.errors.RetriableException;
@@ -55,7 +54,6 @@
 import io.debezium.annotation.ThreadSafe;
 import io.debezium.config.CommonConnectorConfig;
 import io.debezium.config.Configuration;
-import io.debezium.config.Field;
 import io.debezium.config.Instantiator;
 import io.debezium.engine.DebeziumEngine;
 import io.debezium.engine.StopEngineException;
@@ -359,7 +357,7 @@ private EmbeddedEngine(Configuration config, ClassLoader classLoader, Clock cloc
         Map<String, String> embeddedConfig = config.asMap(EmbeddedEngineConfig.ALL_FIELDS);
         embeddedConfig.put(WorkerConfig.KEY_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
         embeddedConfig.put(WorkerConfig.VALUE_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
-        workerConfig = new EmbeddedConfig(embeddedConfig);
+        workerConfig = new EmbeddedWorkerConfig(embeddedConfig);
     }
 
     /**
@@ -1010,23 +1008,6 @@ private DelayStrategy delayStrategy(Configuration config) {
                 Duration.ofMillis(config.getInteger(EmbeddedEngineConfig.ERRORS_RETRY_DELAY_MAX_MS)));
     }
 
-    protected static class EmbeddedConfig extends WorkerConfig {
-        private static final ConfigDef CONFIG;
-
-        static {
-            ConfigDef config = baseConfigDef();
-            Field.group(config, "file", EmbeddedEngineConfig.OFFSET_STORAGE_FILE_FILENAME);
-            Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_TOPIC);
-            Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_PARTITIONS);
-            Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_REPLICATION_FACTOR);
-            CONFIG = config;
-        }
-
-        protected EmbeddedConfig(Map<String, String> props) {
-            super(CONFIG, props);
-        }
-    }
-
     private class HandlerErrors {
         private Throwable handlerError;
         private Throwable retryError;

debezium-embedded/src/main/java/io/debezium/embedded/EmbeddedWorkerConfig.java

@@ -0,0 +1,28 @@
+package io.debezium.embedded;
+
+import java.util.Map;
+
+import io.debezium.config.Field;
+import org.apache.kafka.common.config.ConfigDef;
+import org.apache.kafka.connect.runtime.WorkerConfig;
+
+/**
+ * Extension to Kafka's {@link WorkerConfig} with additions needed by {@link io.debezium.engine.DebeziumEngine}.
+ * Should be removed once {@link io.debezium.engine.DebeziumEngine} is independent on Kafka model (DBZ-6234).
+ */
+class EmbeddedWorkerConfig extends WorkerConfig {
+    private static final ConfigDef CONFIG;
+
+    static {
+        ConfigDef config = baseConfigDef();
+        Field.group(config, "file", EmbeddedEngineConfig.OFFSET_STORAGE_FILE_FILENAME);
+        Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_TOPIC);
+        Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_PARTITIONS);
+        Field.group(config, "kafka", EmbeddedEngineConfig.OFFSET_STORAGE_KAFKA_REPLICATION_FACTOR);
+        CONFIG = config;
+    }
+
+    protected EmbeddedWorkerConfig(Map<String, String> props) {
+        super(CONFIG, props);
+    }
+}

debezium-embedded/src/test/java/io/debezium/embedded/AbstractConnectorTest.java

@@ -70,7 +70,6 @@
 import io.debezium.config.Configuration;
 import io.debezium.config.Instantiator;
 import io.debezium.data.VerifyRecord;
-import io.debezium.embedded.EmbeddedEngine.EmbeddedConfig;
 import io.debezium.engine.DebeziumEngine;
 import io.debezium.function.BooleanConsumer;
 import io.debezium.junit.SkipTestRule;
@@ -1156,7 +1155,7 @@ protected <T> Map<Map<String, T>, Map<String, Object>> readLastCommittedOffsets(
         Map<String, String> embeddedConfig = config.asMap(EmbeddedEngineConfig.ALL_FIELDS);
         embeddedConfig.put(WorkerConfig.KEY_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
         embeddedConfig.put(WorkerConfig.VALUE_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
-        WorkerConfig workerConfig = new EmbeddedConfig(embeddedConfig);
+        WorkerConfig workerConfig = new EmbeddedWorkerConfig(embeddedConfig);
 
         FileOffsetBackingStore offsetStore = KafkaConnectUtil.fileOffsetBackingStore();
         offsetStore.configure(workerConfig);
@@ -1188,7 +1187,7 @@ protected void storeOffsets(Configuration config, Map<Map<String, ?>, Map<String
         Map<String, String> embeddedConfig = config.asMap(EmbeddedEngineConfig.ALL_FIELDS);
         embeddedConfig.put(WorkerConfig.KEY_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
         embeddedConfig.put(WorkerConfig.VALUE_CONVERTER_CLASS_CONFIG, JsonConverter.class.getName());
-        WorkerConfig workerConfig = new EmbeddedConfig(embeddedConfig);
+        WorkerConfig workerConfig = new EmbeddedWorkerConfig(embeddedConfig);
 
         FileOffsetBackingStore offsetStore = KafkaConnectUtil.fileOffsetBackingStore();
         offsetStore.configure(workerConfig);

debezium-embedded/src/test/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-microbenchmark-oracle/src/main/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>

debezium-storage/debezium-storage-jdbc/src/test/resources/logback-test.xml

@@ -17,7 +17,7 @@
         <appender-ref ref="CONSOLE" />
     </logger>
     <logger
-        name="io.debezium.embedded.EmbeddedEngine$EmbeddedConfig"
+        name="io.debezium.embedded.EmbeddedWorkerConfig"
         level="warn" additivity="false">
         <appender-ref ref="CONSOLE" />
     </logger>