[BAEL-16003] Moving article out of libraries (& flink from libraries-data) into libraries-data-2

libraries-data-2/src/main/com/baeldung/flink/schema/BackupSerializationSchema.java

@@ -0,0 +1,33 @@
+package com.baeldung.flink.schema;
+
+import com.baeldung.flink.model.Backup;
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import org.apache.flink.api.common.serialization.SerializationSchema;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class BackupSerializationSchema
+  implements SerializationSchema<Backup> {
+
+    static ObjectMapper objectMapper = new ObjectMapper().registerModule(new JavaTimeModule());
+
+    Logger logger = LoggerFactory.getLogger(BackupSerializationSchema.class);
+
+    @Override
+    public byte[] serialize(Backup backupMessage) {
+        if(objectMapper == null) {
+            objectMapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
+            objectMapper = new ObjectMapper().registerModule(new JavaTimeModule());
+        }
+        try {
+            String json = objectMapper.writeValueAsString(backupMessage);
+            return json.getBytes();
+        } catch (com.fasterxml.jackson.core.JsonProcessingException e) {
+            logger.error("Failed to parse JSON", e);
+        }
+        return new byte[0];
+    }
+}