Testing Jackson JSON/XML/YAML object mapping
- shows how to properly configure the Jackson
ObjectMapper(with Java 8 Date/Time API support) - demonstrates how to serialize/deserialize JSON, XML and YAML with Jackson
- bean serialization →
Movie,Actor - custom serialization for enums using arbitrary string identifiers, ignoring case →
Genre - custom serialization for domain object →
MetadatawithMetadataConverter.SerializerandMetadataConverter.Deserializer - custom serialization for immutable value objects with string constructor /
toString()→AspectRatio - custom serialization for
java.time.Durationin a user-friendly format (e.g."1w 2d 3h 4m 5s") - function-based custom serialization using
FunctionalSerializer/FunctionalDeserializer - NEW: JSON schema and validation example
Serialized examples (Movie with Actor, Genre, AspectRatio and Metadata):
887 bytes, 3.14 µS serialization, 5.39 µS deserialization
{
"title": "Blade Runner",
"year": 1982,
"genres": [
"Sci-Fi",
"Thriller"
],
"aspect-ratio": "2.39:1",
"created": "2021-05-18T12:27:16Z",
"ratings": {
"IMDB": 8.2,
"Metacritic": 89.0
},
"synopsis": "A blade runner must pursue and terminate four replicants\n who stole a ship in space and have returned to Earth to find their creator.",
"actors": [
{
"firstName": "Harrison",
"lastName": "Ford",
"dateOfBirth": "1942-07-13",
"age": 78
},
{
"firstName": "Rutger",
"lastName": "Hauer",
"dateOfBirth": "1944-01-23",
"age": 77
},
{
"firstName": "Sean",
"lastName": "Young",
"dateOfBirth": "1959-11-20",
"age": 61
}
],
"duration": "1h 57m",
"metadata": {
"director": "Ridley Scott",
"release-date": "1982-06-25",
"screenplay": "Hampton Fancher, David Webb Peoples"
}
}1008 bytes, 4.88 µS serialization, 12.34 µS deserialization
<movie>
<ratings IMDB="8.2" Metacritic="89.0"/>
<created>2021-05-18T12:27:12Z</created>
<title>Blade Runner</title>
<year>1982</year>
<genre>Sci-Fi</genre>
<genre>Thriller</genre>
<aspectRatio>2.39:1</aspectRatio>
<synopsis>A blade runner must pursue and terminate four replicants
who stole a ship in space and have returned to Earth to find their creator.
</synopsis>
<actor age="78">
<firstName>Harrison</firstName>
<lastName>Ford</lastName>
<dateOfBirth>1942-07-13</dateOfBirth>
</actor>
<actor age="77">
<firstName>Rutger</firstName>
<lastName>Hauer</lastName>
<dateOfBirth>1944-01-23</dateOfBirth>
</actor>
<actor age="61">
<firstName>Sean</firstName>
<lastName>Young</lastName>
<dateOfBirth>1959-11-20</dateOfBirth>
</actor>
<duration>1h 57m</duration>
<metadata>
<director>Ridley Scott</director>
<release-date>1982-06-25</release-date>
<screenplay>Hampton Fancher, David Webb Peoples</screenplay>
</metadata>
</movie>665 bytes, 17.66 µS serialization, 39.16 µS deserialization
---
title: Blade Runner
year: 1982
genres:
- Sci-Fi
- Thriller
aspect-ratio: 2.39:1
created: 2021-05-18T12:27:18Z
ratings:
IMDB: 8.2
Metacritic: 89.0
synopsis: |-
A blade runner must pursue and terminate four replicants
who stole a ship in space and have returned to Earth to find their creator.
actors:
- firstName: Harrison
lastName: Ford
dateOfBirth: 1942-07-13
age: 78
- firstName: Rutger
lastName: Hauer
dateOfBirth: 1944-01-23
age: 77
- firstName: Sean
lastName: Young
dateOfBirth: 1959-11-20
age: 61
duration: 1h 57m
metadata:
director: Ridley Scott
release-date: 1982-06-25
screenplay: "Hampton Fancher, David Webb Peoples"726 bytes, 5.27 µS serialization, 16.06 µS deserialization
title=Blade Runner
year=1982
genres.1=Sci-Fi
genres.2=Thriller
aspect-ratio=2.39:1
created=2021-05-18T12:27:10Z
ratings.IMDB=8.2
ratings.Metacritic=89.0
synopsis=A blade runner must pursue and terminate four replicants\n who stole a ship in space and have returned to Earth to find their creator.
actors.1.firstName=Harrison
actors.1.lastName=Ford
actors.1.dateOfBirth=1942-07-13
actors.1.age=78
actors.2.firstName=Rutger
actors.2.lastName=Hauer
actors.2.dateOfBirth=1944-01-23
actors.2.age=77
actors.3.firstName=Sean
actors.3.lastName=Young
actors.3.dateOfBirth=1959-11-20
actors.3.age=61
duration=1h 57m
metadata.director=Ridley Scott
metadata.release-date=1982-06-25
metadata.screenplay=Hampton Fancher, David Webb Peoples607 bytes, 2.39 µS serialization, 4.91 µS deserialization
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Build with gradle (default: clean build):
./gradlew
Build with Maven (default: clean install):
mvn