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support jackson annotation JsonDeserialize#builder, for issue #2399
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core/src/test/java/com/alibaba/fastjson2/issues_2400/Issue2399.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package com.alibaba.fastjson2.issues_2400; | ||
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| import com.alibaba.fastjson2.JSON; | ||
| import com.fasterxml.jackson.annotation.JsonIgnoreProperties; | ||
| import com.fasterxml.jackson.annotation.JsonInclude; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import com.fasterxml.jackson.databind.annotation.JsonDeserialize; | ||
| import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder; | ||
| import lombok.NonNull; | ||
| import org.junit.jupiter.api.Test; | ||
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| import java.io.Serializable; | ||
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| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
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| public class Issue2399 { | ||
| @Test | ||
| public void test() { | ||
| User user = new User.UserBuilderImpl().id(123L).firstName("wenshao").build(); | ||
| String str = JSON.toJSONString(user); | ||
| assertEquals("{\"first_name\":\"wenshao\",\"id\":123}", str); | ||
| System.out.println(str); | ||
| User user1 = JSON.parseObject(str, User.class); | ||
| assertEquals(user.id, user1.id); | ||
| assertEquals(user.firstName, user1.firstName); | ||
| } | ||
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| @JsonIgnoreProperties( | ||
| ignoreUnknown = true | ||
| ) | ||
| @JsonInclude(JsonInclude.Include.NON_NULL) | ||
| public interface ApiObject | ||
| extends Serializable { | ||
| } | ||
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| @JsonDeserialize(builder = User.UserBuilderImpl.class) | ||
| public static class User | ||
| implements ApiObject { | ||
| private static final String ID_FIELD = "id"; | ||
| private static final String FIRST_NAME_FIELD = "first_name"; | ||
| @JsonProperty("id") | ||
| private @NonNull Long id; | ||
| @JsonProperty("first_name") | ||
| private @NonNull String firstName; | ||
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| protected User(User.UserBuilder<?, ?> b) { | ||
| this.id = b.id; | ||
| if (this.id == null) { | ||
| throw new NullPointerException("id is marked non-null but is null"); | ||
| } else { | ||
| this.firstName = b.firstName; | ||
| if (this.firstName == null) { | ||
| throw new NullPointerException("firstName is marked non-null but is null"); | ||
| } | ||
| } | ||
| } | ||
|
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| public static User.UserBuilder<?, ?> builder() { | ||
| return new User.UserBuilderImpl(); | ||
| } | ||
|
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| public @NonNull Long getId() { | ||
| return this.id; | ||
| } | ||
|
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| public @NonNull String getFirstName() { | ||
| return this.firstName; | ||
| } | ||
|
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| @JsonProperty("id") | ||
| public void setId(@NonNull Long id) { | ||
| if (id == null) { | ||
| throw new NullPointerException("id is marked non-null but is null"); | ||
| } else { | ||
| this.id = id; | ||
| } | ||
| } | ||
|
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| @JsonProperty("first_name") | ||
| public void setFirstName(@NonNull String firstName) { | ||
| if (firstName == null) { | ||
| throw new NullPointerException("firstName is marked non-null but is null"); | ||
| } else { | ||
| this.firstName = firstName; | ||
| } | ||
| } | ||
|
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| public String toString() { | ||
| Long var10000 = this.getId(); | ||
| return "User(id=" + var10000 + ", firstName=" + this.getFirstName() + ")"; | ||
| } | ||
|
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| public User(@NonNull Long id, @NonNull String firstName) { | ||
| if (id == null) { | ||
| throw new NullPointerException("id is marked non-null but is null"); | ||
| } else if (firstName == null) { | ||
| throw new NullPointerException("firstName is marked non-null but is null"); | ||
| } | ||
| } | ||
|
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| public abstract static class UserBuilder<C extends User, B extends User.UserBuilder<C, B>> { | ||
| private Long id; | ||
| private String firstName; | ||
|
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| public UserBuilder() { | ||
| } | ||
|
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| @JsonProperty("id") | ||
| public B id(@NonNull Long id) { | ||
| if (id == null) { | ||
| throw new NullPointerException("id is marked non-null but is null"); | ||
| } else { | ||
| this.id = id; | ||
| return this.self(); | ||
| } | ||
| } | ||
|
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| @JsonProperty("first_name") | ||
| public B firstName(@NonNull String firstName) { | ||
| if (firstName == null) { | ||
| throw new NullPointerException("firstName is marked non-null but is null"); | ||
| } else { | ||
| this.firstName = firstName; | ||
| return this.self(); | ||
| } | ||
| } | ||
|
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| protected abstract B self(); | ||
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| public abstract C build(); | ||
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| public String toString() { | ||
| return "User.UserBuilder(id=" + this.id + ", firstName=" + this.firstName + ")"; | ||
| } | ||
| } | ||
|
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| @JsonPOJOBuilder( | ||
| withPrefix = "", | ||
| buildMethodName = "build" | ||
| ) | ||
| static final class UserBuilderImpl | ||
| extends User.UserBuilder<User, User.UserBuilderImpl> { | ||
| private UserBuilderImpl() { | ||
| } | ||
|
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| protected User.UserBuilderImpl self() { | ||
| return this; | ||
| } | ||
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| public User build() { | ||
| return new User(this); | ||
| } | ||
| } | ||
| } | ||
| } |