From 3aaf85dccaab035b9ef5b925ea1541a9cd0b70bf Mon Sep 17 00:00:00 2001
From: Kai Yuan <kent.yuan@Gmail.com>
Date: Thu, 13 Apr 2023 02:35:29 +0200
Subject: [PATCH] [improve-jackson-annotation] BAEL-6308
 JsonFormat.Feature.ACCEPT_CASE_INSENSITIVE_PROPERTIES (#13807)

---
 .../com/baeldung/jackson/format/User.java     | 81 ++++++++++++++++---
 .../jackson/format/JsonFormatUnitTest.java    | 41 +++++++---
 2 files changed, 102 insertions(+), 20 deletions(-)

diff --git a/jackson-modules/jackson-annotations/src/main/java/com/baeldung/jackson/format/User.java b/jackson-modules/jackson-annotations/src/main/java/com/baeldung/jackson/format/User.java
index e655deb93b..119c1e3ce3 100644
--- a/jackson-modules/jackson-annotations/src/main/java/com/baeldung/jackson/format/User.java
+++ b/jackson-modules/jackson-annotations/src/main/java/com/baeldung/jackson/format/User.java
@@ -1,26 +1,41 @@
 package com.baeldung.jackson.format;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+
 import java.util.Date;
 
-import com.baeldung.jackson.domain.Person;
-import com.fasterxml.jackson.annotation.JsonFormat;
-
-/**
- * @author Jay Sridhar
- * @version 1.0
- */
-public class User extends Person {
+public class User {
     private String firstName;
     private String lastName;
 
     @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd@HH:mm:ss.SSSZ")
     private Date createdDate;
 
+    public User() {
+    }
+
     public User(String firstName, String lastName) {
-        super(firstName, lastName);
+        this.firstName = firstName;
+        this.lastName = lastName;
         this.createdDate = new Date();
     }
 
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
     public Date getCreatedDate() {
         return createdDate;
     }
@@ -35,3 +50,51 @@ public class User extends Person {
         return new Date();
     }
 }
+
+@JsonFormat(with = JsonFormat.Feature.ACCEPT_CASE_INSENSITIVE_PROPERTIES)
+class UserIgnoreCase {
+    private String firstName;
+    private String lastName;
+
+    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd@HH:mm:ss.SSSZ")
+    private Date createdDate;
+
+    public UserIgnoreCase() {
+    }
+
+    public UserIgnoreCase(String firstName, String lastName) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.createdDate = new Date();
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Date getCreatedDate() {
+        return createdDate;
+    }
+
+    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd@HH:mm:ss.SSSZ", locale = "en_GB")
+    public Date getCurrentDate() {
+        return new Date();
+    }
+
+    @JsonFormat(shape = JsonFormat.Shape.NUMBER)
+    public Date getDateNum() {
+        return new Date();
+    }
+}
\ No newline at end of file
diff --git a/jackson-modules/jackson-annotations/src/test/java/com/baeldung/jackson/format/JsonFormatUnitTest.java b/jackson-modules/jackson-annotations/src/test/java/com/baeldung/jackson/format/JsonFormatUnitTest.java
index cf166fdc36..5cdc248d3b 100644
--- a/jackson-modules/jackson-annotations/src/test/java/com/baeldung/jackson/format/JsonFormatUnitTest.java
+++ b/jackson-modules/jackson-annotations/src/test/java/com/baeldung/jackson/format/JsonFormatUnitTest.java
@@ -1,24 +1,25 @@
 package com.baeldung.jackson.format;
 
-import java.util.Date;
-
 import com.fasterxml.jackson.core.JsonProcessingException;
-
 import com.fasterxml.jackson.databind.ObjectMapper;
-
+import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
 import org.junit.Test;
 
-import static io.restassured.path.json.JsonPath.from;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.TimeZone;
 
+import static io.restassured.path.json.JsonPath.from;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.Assertions.from;
 import static org.assertj.core.data.Percentage.withPercentage;
 
-/**
- * @author Jay Sridhar
- * @version 1.0
- */
 public class JsonFormatUnitTest {
 
+    private static final String JSON_STRING = "{\"FIRSTNAME\":\"John\",\"lastname\":\"Smith\",\"cReAtEdDaTe\":\"2016-12-18@07:53:34.740+0000\"}";
+
     @Test
     public void whenSerializedDateFormat_thenCorrect() throws JsonProcessingException {
 
@@ -32,6 +33,24 @@ public class JsonFormatUnitTest {
         // Expected to be close to current time
         long now = new Date().getTime();
         assertThat(from(result).getLong("dateNum")).isCloseTo(now, withPercentage(10.0));
-
     }
-}
+
+    @Test
+    public void whenDeserializeJsonStrToUserObject_thenFail() {
+        assertThatThrownBy(() -> new ObjectMapper().readValue(JSON_STRING, User.class)).isInstanceOf(UnrecognizedPropertyException.class);
+    }
+
+    @Test
+    public void whenDeserializeJsonStrToUserIgnoreCaseObject_thenSuccess() throws JsonProcessingException, ParseException {
+        UserIgnoreCase result = new ObjectMapper().readValue(JSON_STRING, UserIgnoreCase.class);
+        SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSzz");
+        Date expectedDate = fmt.parse("2016-12-18T07:53:34.740+0000");
+
+        assertThat(result)
+            .isNotNull()
+            .returns("John", from(UserIgnoreCase::getFirstName))
+            .returns("Smith", from(UserIgnoreCase::getLastName))
+            .returns(expectedDate, from(UserIgnoreCase::getCreatedDate));
+    }
+
+}
\ No newline at end of file