test: add Deserialize test for dto

Author: ziqiangai

backend/java/collagid/collagid-core/src/main/java/io/github/collagid/core/api/dtos/RecordDTO.java

@@ -1,9 +1,46 @@
 package io.github.collagid.core.api.dtos;
 
-public class RecordDTO {
-    private String id;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.node.JsonNodeFactory;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+@JsonDeserialize(using = RecordDTO.RecordDTODeserializer.class)
+public class RecordDTO extends ObjectNode implements Serializable {
+    public RecordDTO() {
+        super(JsonNodeFactory.instance);
+    }
 
     public void setId(String id) {
-        this.id = id;
+        this.put("id", id);
+    }
+
+    public String getId() {
+        return this.path("id").asText();
+    }
+
+    static class RecordDTODeserializer extends JsonDeserializer<RecordDTO> {
+
+        @Override
+        public RecordDTO deserialize(JsonParser p, DeserializationContext ctxt)
+                throws IOException, JsonProcessingException {
+            System.out.println("xxx");
+            ObjectMapper mapper = (ObjectMapper) p.getCodec();
+            JsonNode node = mapper.readTree(p);
+            RecordDTO recordDTO = new RecordDTO();
+            if (node.isObject()) {
+                ObjectNode objectNode = (ObjectNode) node;
+                recordDTO.setAll(objectNode);
+            }
+            return recordDTO;
+        }
     }
 }

backend/java/collagid/collagid-core/src/test/java/io/github/collagid/core/api/dtos/RecordDTOTest.java

@@ -0,0 +1,34 @@
+package io.github.collagid.core.api.dtos;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class RecordDTOTest {
+
+    @Test
+    public void testSetId() {
+        RecordDTO recordDTO = new RecordDTO();
+        recordDTO.setId("123");
+        assertEquals("123", recordDTO.getId());
+        System.out.println(recordDTO.toPrettyString());
+        try {
+            RecordDTO record = this.get("{\n" +
+                    "  \"id\" : \"123\"\n" +
+                    "}");
+            assertEquals(record.getId(), "123");
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private RecordDTO get(String text) throws JsonProcessingException {
+        ObjectNode jsonNodes = new ObjectMapper().readValue(text, ObjectNode.class);
+        RecordDTO recordDTO = new RecordDTO();
+        recordDTO.setAll(jsonNodes);
+        return recordDTO;
+    }
+}