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Add Date and UUID deserialization support in nullSafeValue method #42956

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Add Date and UUID deserialization support in nullSafeValue method #42956

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84f71bc
Updated nullSafeValue method to handle Date and UUID types.
minwoo1999 Oct 31, 2024
4c19953
Add unit tests for Date and UUID deserialization in nullSafeValue method
minwoo1999 Oct 31, 2024
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8 changes: 8 additions & 0 deletions ...ct/spring-boot/src/main/java/org/springframework/boot/jackson/JsonObjectDeserializer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,8 @@
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Date;
import java.util.UUID;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
Expand Down Expand Up @@ -115,6 +117,12 @@ protected final <D> D nullSafeValue(JsonNode jsonNode, Class<D> type) {
if (type == BigInteger.class) {
return (D) jsonNode.bigIntegerValue();
}
if (type == Date.class) {
return (D) new Date(jsonNode.longValue());
}
if (type == UUID.class) {
return (D) UUID.fromString(jsonNode.textValue());
}
throw new IllegalArgumentException("Unsupported value type " + type.getName());
}

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23 changes: 23 additions & 0 deletions ...ring-boot/src/test/java/org/springframework/boot/jackson/JsonObjectDeserializerTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,8 @@
import java.io.InputStream;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Date;
import java.util.UUID;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
Expand Down Expand Up @@ -144,6 +146,27 @@ void nullSafeValueWhenClassIsBigIntegerShouldReturnBigInteger() {
assertThat(value).isEqualTo(BigInteger.TEN);
}


@Test
void nullSafeValueWhenClassIsDateShouldReturnDate() {
JsonNode node = mock(JsonNode.class);
long timestamp = 1629976800000L;
given(node.longValue()).willReturn(timestamp);
Date expectedDate = new Date(timestamp);
Date value = this.testDeserializer.testNullSafeValue(node, Date.class);
assertThat(value).isEqualTo(expectedDate);
}

@Test
void nullSafeValueWhenClassIsUUIDShouldReturnUUID() {
JsonNode node = mock(JsonNode.class);
String uuidString = "123e4567-e89b-12d3-a456-426614174000";
UUID expectedUUID = UUID.fromString(uuidString);
given(node.textValue()).willReturn(uuidString);
UUID value = this.testDeserializer.testNullSafeValue(node, UUID.class);
assertThat(value).isEqualTo(expectedUUID);
}

@Test
void nullSafeValueWhenClassIsUnknownShouldThrowException() {
assertThatIllegalArgumentException()
Expand Down