[Improve][Formats] Support not primary-key table for debezium format (#…

…7836)

seatunnel-formats/seatunnel-format-compatible-debezium-json/src/main/java/org/apache/seatunnel/format/compatible/debezium/json/CompatibleDebeziumJsonSerializationSchema.java

@@ -30,15 +30,20 @@
 @RequiredArgsConstructor
 public class CompatibleDebeziumJsonSerializationSchema implements SerializationSchema {
 
+ private final boolean isKey;
  private final int index;
 
  public CompatibleDebeziumJsonSerializationSchema(SeaTunnelRowType rowType, boolean isKey) {
+ this.isKey = isKey;
  this.index = rowType.indexOf(isKey ? FIELD_KEY : FIELD_VALUE);
  }
 
  @Override
  public byte[] serialize(SeaTunnelRow row) {
  String field = (String) row.getField(index);
+ if (isKey && field == null) {
+ return null;
+ }
  return field.getBytes();
  }
 }

seatunnel-formats/seatunnel-format-compatible-debezium-json/src/test/java/org/apache/seatunnel/format/compatible/debezium/json/TestCompatibleDebeziumJsonSerializationSchema.java

@@ -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.
+ */
+
+package org.apache.seatunnel.format.compatible.debezium.json;
+
+import org.apache.seatunnel.api.table.type.SeaTunnelRow;
+import org.apache.seatunnel.api.table.type.SeaTunnelRowType;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class TestCompatibleDebeziumJsonSerializationSchema {
+
+ @Test
+ public void testDebeziumSerializeKeyIsNull() {
+ SeaTunnelRowType rowType =
+ CompatibleDebeziumJsonDeserializationSchema.DEBEZIUM_DATA_ROW_TYPE;
+ SeaTunnelRow row = new SeaTunnelRow(new Object[] {"test_topic", null, "value"});
+
+ CompatibleDebeziumJsonSerializationSchema serializationSchema =
+ new CompatibleDebeziumJsonSerializationSchema(rowType, true);
+ Assertions.assertNull(serializationSchema.serialize(row));
+ }
+}