iSharkFly-Docs
/
java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added jackson/gson updates (#552)

This commit is contained in:
Nancy Bosecker 2016-08-09 21:51:06 -07:00 committed by Grzegorz Piwowarek
parent 87d260ce46
commit 31d9e1bef6
13 changed files with 599 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
gson/src/main/java/org/baeldung/gson/entities/ActorGson.java Normal file
View File

@ -0,0 +1,48 @@
package org.baeldung.gson.entities;
import java.util.Date;
import java.util.List;
public class ActorGson {
@Override
public String toString() {
return "ActorGson [imdbId=" + imdbId + ", dateOfBirth=" + dateOfBirth + ", filmography=" + filmography + "]";
}
private String imdbId;
private Date dateOfBirth;
private List<String> filmography;
public String getImdbId() {
return imdbId;
}
public void setImdbId(String imdbId) {
this.imdbId = imdbId;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public List<String> getFilmography() {
return filmography;
}
public void setFilmography(List<String> filmography) {
this.filmography = filmography;
}
public ActorGson(String imdbId, Date dateOfBirth, List<String> filmography) {
super();
this.imdbId = imdbId;
this.dateOfBirth = dateOfBirth;
this.filmography = filmography;
}
}

46
gson/src/main/java/org/baeldung/gson/entities/Movie.java Normal file
View File

@ -0,0 +1,46 @@
package org.baeldung.gson.entities;
import java.util.List;
public class Movie {
@Override
public String toString() {
return "Movie [imdbId=" + imdbId + ", director=" + director + ", actors=" + actors + "]";
}
private String imdbId;
private String director;
private List<ActorGson> actors;
public Movie(String imdbID, String director, List<ActorGson> actors) {
super();
this.imdbId = imdbID;
this.director = director;
this.actors = actors;
}
public String getImdbID() {
return imdbId;
}
public void setImdbID(String imdbID) {
this.imdbId = imdbID;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public List<ActorGson> getActors() {
return actors;
}
public void setActors(List<ActorGson> actors) {
this.actors = actors;
}
}

45
gson/src/main/java/org/baeldung/gson/entities/MovieWithNullValue.java Normal file
View File

@ -0,0 +1,45 @@
package org.baeldung.gson.entities;
import java.util.List;
import com.google.gson.annotations.Expose;
public class MovieWithNullValue {
@Expose
private String imdbId;
private String director;
@Expose
private List<ActorGson> actors;
public MovieWithNullValue(String imdbID, String director, List<ActorGson> actors) {
super();
this.imdbId = imdbID;
this.director = director;
this.actors = actors;
}
public String getImdbID() {
return imdbId;
}
public void setImdbID(String imdbID) {
this.imdbId = imdbID;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public List<ActorGson> getActors() {
return actors;
}
public void setActors(List<ActorGson> actors) {
this.actors = actors;
}
}

52
gson/src/main/java/org/baeldung/gson/serialization/ActorGsonDeserializer.java Normal file
View File

@ -0,0 +1,52 @@
package org.baeldung.gson.serialization;
import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import java.util.stream.Collectors;
import org.baeldung.gson.entities.ActorGson;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
public class ActorGsonDeserializer implements JsonDeserializer<ActorGson> {
private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
@Override
public ActorGson deserialize(JsonElement json, Type type, JsonDeserializationContext jsonDeserializationContext) throws JsonParseException {
JsonObject jsonObject = json.getAsJsonObject();
JsonElement jsonImdbId = jsonObject.get("imdbId");
JsonElement jsonDateOfBirth = jsonObject.get("dateOfBirth");
JsonArray jsonFilmography = jsonObject.getAsJsonArray("filmography");
ArrayList<String> filmList = new ArrayList<String>();
if (jsonFilmography != null) {
for (int i = 0; i < jsonFilmography.size(); i++) {
filmList.add(jsonFilmography.get(i).getAsString());
}
}
ActorGson actorGson = null;
try {
actorGson = new ActorGson(jsonImdbId.getAsString(), sdf.parse(jsonDateOfBirth.getAsString()), filmList);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return actorGson;
}
}

34
gson/src/main/java/org/baeldung/gson/serialization/ActorGsonSerializer.java Normal file
View File

@ -0,0 +1,34 @@
package org.baeldung.gson.serialization;
import java.lang.reflect.Type;
import java.text.SimpleDateFormat;
import java.util.List;
import java.util.stream.Collectors;
import org.baeldung.gson.entities.ActorGson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
public class ActorGsonSerializer implements JsonSerializer<ActorGson> {
private SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
@Override
public JsonElement serialize(ActorGson actor, Type type, JsonSerializationContext jsonSerializationContext) {
JsonObject actorJsonObj = new JsonObject();
actorJsonObj.addProperty("<strong>IMDB Code</strong>", actor.getImdbId());
actorJsonObj.addProperty("<strong>Date Of Birth</strong>", actor.getDateOfBirth() != null ? sdf.format(actor.getDateOfBirth()) : null);
actorJsonObj.addProperty("<strong>N° Film:</strong> ", actor.getFilmography() != null ? actor.getFilmography().size() : null);
actorJsonObj.addProperty("filmography", actor.getFilmography() != null ? convertFilmography(actor.getFilmography()) : null);
return actorJsonObj;
}
private String convertFilmography(List<String> filmography) {
return filmography.stream().collect(Collectors.joining("-"));
}
}

38
gson/src/test/java/org/baeldung/gson/deserialization/GsonDeserializeTest.java Normal file
View File

@ -0,0 +1,38 @@
package org.baeldung.gson.deserialization;
import java.text.ParseException;
import org.baeldung.gson.entities.ActorGson;
import org.baeldung.gson.entities.Movie;
import org.baeldung.gson.serialization.ActorGsonDeserializer;
import org.junit.Assert;
import org.junit.Test;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
public class GsonDeserializeTest {
@Test
public void whenSimpleDeserialize_thenCorrect() throws ParseException {
String jsonInput = "{\"imdbId\":\"tt0472043\",\"actors\":" + "[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"1982-09-21T12:00:00+01:00\",\"filmography\":" + "[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
Movie outputMovie = new Gson().fromJson(jsonInput, Movie.class);
String expectedOutput = "Movie [imdbId=tt0472043, director=null, actors=[ActorGson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 04:00:00 PDT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
Assert.assertEquals(outputMovie.toString(), expectedOutput);
}
@Test
public void whenCustomDeserialize_thenCorrect() throws ParseException {
String jsonInput = "{\"imdbId\":\"tt0472043\",\"actors\":" + "[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"1982-09-21T12:00:00+01:00\",\"filmography\":" + "[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
Gson gson = new GsonBuilder().registerTypeAdapter(ActorGson.class, new ActorGsonDeserializer()).create();
Movie outputMovie = gson.fromJson(jsonInput, Movie.class);
String expectedOutput = "Movie [imdbId=tt0472043, director=null, actors=[ActorGson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 12:00:00 PDT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
Assert.assertEquals(outputMovie.toString(), expectedOutput);
}
}

51
gson/src/test/java/org/baeldung/gson/serialization/GsonSerializeTest.java Normal file
View File

@ -0,0 +1,51 @@
package org.baeldung.gson.serialization;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import org.baeldung.gson.entities.ActorGson;
import org.baeldung.gson.entities.Movie;
import org.baeldung.gson.entities.MovieWithNullValue;
import org.baeldung.gson.serialization.ActorGsonDeserializer;
import org.baeldung.gson.serialization.ActorGsonSerializer;
import org.junit.Assert;
import org.junit.Test;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonParser;
public class GsonSerializeTest {
@Test
public void whenSimpleSerialize_thenCorrect() throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
ActorGson rudyYoungblood = new ActorGson("nm2199632", sdf.parse("21-09-1982"), Arrays.asList("Apocalypto", "Beatdown", "Wind Walkers"));
Movie movie = new Movie("tt0472043", "Mel Gibson", Arrays.asList(rudyYoungblood));
String expectedOutput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"Sep 21, 1982 12:00:00 AM\",\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
Assert.assertEquals(new Gson().toJson(movie), expectedOutput);
}
@Test
public void whenCustomSerialize_thenCorrect() throws ParseException {
Gson gson = new GsonBuilder().setPrettyPrinting().excludeFieldsWithoutExposeAnnotation().serializeNulls().disableHtmlEscaping().registerTypeAdapter(ActorGson.class, new ActorGsonSerializer()).create();
SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
ActorGson rudyYoungblood = new ActorGson("nm2199632", sdf.parse("21-09-1982"), Arrays.asList("Apocalypto", "Beatdown", "Wind Walkers"));
MovieWithNullValue movieWithNullValue = new MovieWithNullValue(null, "Mel Gibson", Arrays.asList(rudyYoungblood));
String expectedOutput = new GsonBuilder()
.setPrettyPrinting()
.serializeNulls()
.disableHtmlEscaping()
.create()
.toJson(new JsonParser()
.parse("{\"imdbId\":null,\"actors\":[{\"<strong>IMDB Code</strong>\":\"nm2199632\",\"<strong>Date Of Birth</strong>\":\"21-09-1982\",\"<strong>N° Film:</strong> \":3,\"filmography\":\"Apocalypto-Beatdown-Wind Walkers\"}]}"));
Assert.assertEquals(gson.toJson(movieWithNullValue), expectedOutput);
}
}

55
jackson/src/main/java/org/baeldung/jackson/entities/ActorJackson.java Normal file
View File

@ -0,0 +1,55 @@
package org.baeldung.jackson.entities;
import java.util.Date;
import java.util.List;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
public class ActorJackson {
private String imdbId;
private Date dateOfBirth;
private List<String> filmography;
public String getImdbId() {
return imdbId;
}
public void setImdbId(String imdbId) {
this.imdbId = imdbId;
}
public Date getDateOfBirth() {
return dateOfBirth;
}
public void setDateOfBirth(Date dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
public List<String> getFilmography() {
return filmography;
}
public void setFilmography(List<String> filmography) {
this.filmography = filmography;
}
public ActorJackson(String imdbId, Date dateOfBirth, List<String> filmography) {
super();
this.imdbId = imdbId;
this.dateOfBirth = dateOfBirth;
this.filmography = filmography;
}
public ActorJackson() {
super();
}
@Override
public String toString() {
return "ActorJackson [imdbId=" + imdbId + ", dateOfBirth=" + dateOfBirth + ", filmography=" + filmography + "]";
}
}

50
jackson/src/main/java/org/baeldung/jackson/entities/Movie.java Normal file
View File

@ -0,0 +1,50 @@
package org.baeldung.jackson.entities;
import java.util.List;
public class Movie {
private String imdbId;
private String director;
private List<ActorJackson> actors;
public Movie(String imdbId, String director, List<ActorJackson> actors) {
super();
this.imdbId = imdbId;
this.director = director;
this.actors = actors;
}
public Movie() {
super();
}
@Override
public String toString() {
return "Movie [imdbId=" + imdbId + ", director=" + director + ", actors=" + actors + "]";
}
public String getImdbId() {
return imdbId;
}
public void setImdbId(String imdbId) {
this.imdbId = imdbId;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public List<ActorJackson> getActors() {
return actors;
}
public void setActors(List<ActorJackson> actors) {
this.actors = actors;
}
}

47
jackson/src/main/java/org/baeldung/jackson/entities/MovieWithNullValue.java Normal file
View File

@ -0,0 +1,47 @@
package org.baeldung.jackson.entities;
import java.util.List;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.google.gson.annotations.Expose;
public class MovieWithNullValue {
private String imdbId;
@JsonIgnore
private String director;
private List<ActorJackson> actors;
public MovieWithNullValue(String imdbID, String director, List<ActorJackson> actors) {
super();
this.imdbId = imdbID;
this.director = director;
this.actors = actors;
}
public String getImdbID() {
return imdbId;
}
public void setImdbID(String imdbID) {
this.imdbId = imdbID;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public List<ActorJackson> getActors() {
return actors;
}
public void setActors(List<ActorJackson> actors) {
this.actors = actors;
}
}

31
jackson/src/main/java/org/baeldung/jackson/serialization/ActorJacksonSerializer.java Normal file
View File

@ -0,0 +1,31 @@
package org.baeldung.jackson.serialization;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.stream.Collectors;
import org.baeldung.jackson.entities.ActorJackson;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
public class ActorJacksonSerializer extends StdSerializer<ActorJackson> {
private SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
public ActorJacksonSerializer(Class t) {
super(t);
}
@Override
public void serialize(ActorJackson actor, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
jsonGenerator.writeStartObject();
jsonGenerator.writeStringField("imdbId", actor.getImdbId());
jsonGenerator.writeObjectField("dateOfBirth", actor.getDateOfBirth() != null ? sdf.format(actor.getDateOfBirth()) : null);
jsonGenerator.writeNumberField("N° Film: ", actor.getFilmography() != null ? actor.getFilmography().size() : null);
jsonGenerator.writeStringField("filmography", actor.getFilmography().stream().collect(Collectors.joining("-")));
jsonGenerator.writeEndObject();
}
}

42
jackson/src/test/java/org/baeldung/jackson/deserialization/JacksonDeserializeTest.java Normal file
View File

@ -0,0 +1,42 @@
package org.baeldung.jackson.deserialization;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import org.baeldung.jackson.entities.Movie;
import org.junit.Assert;
import org.junit.Test;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
public class JacksonDeserializeTest {
@Test
public void whenSimpleDeserialize_thenCorrect() throws JsonParseException, JsonMappingException, IOException {
String jsonInput = "{\"imdbId\":\"tt0472043\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"1982-09-21T12:00:00+01:00\",\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
ObjectMapper mapper = new ObjectMapper();
Movie movie = mapper.readValue(jsonInput, Movie.class);
String expectedOutput = "Movie [imdbId=tt0472043, director=null, actors=[ActorJackson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 04:00:00 PDT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
Assert.assertEquals(movie.toString(), expectedOutput);
}
@Test
public void whenCustomDeserialize_thenCorrect() throws JsonParseException, JsonMappingException, IOException {
String jsonInput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"1982-09-21T12:00:00+01:00\",\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
ObjectMapper mapper = new ObjectMapper();
final DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
mapper.setDateFormat(df);
Movie movie = mapper.readValue(jsonInput, Movie.class);
String expectedOutput = "Movie [imdbId=tt0472043, director=Mel Gibson, actors=[ActorJackson [imdbId=nm2199632, dateOfBirth=Tue Sep 21 12:00:00 PDT 1982, filmography=[Apocalypto, Beatdown, Wind Walkers]]]]";
Assert.assertEquals(movie.toString(), expectedOutput);
}
}

60
jackson/src/test/java/org/baeldung/jackson/serialization/JacksonSerializeTest.java Normal file
View File

@ -0,0 +1,60 @@
package org.baeldung.jackson.serialization;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import org.baeldung.jackson.entities.ActorJackson;
import org.baeldung.jackson.entities.Movie;
import org.baeldung.jackson.entities.MovieWithNullValue;
import org.baeldung.jackson.serialization.ActorJacksonSerializer;
import org.junit.Assert;
import org.junit.Test;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.module.SimpleModule;
public class JacksonSerializeTest {
@Test
public void whenSimpleSerialize_thenCorrect() throws JsonProcessingException, ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
ActorJackson rudyYoungblood = new ActorJackson("nm2199632", sdf.parse("21-09-1982"), Arrays.asList("Apocalypto", "Beatdown", "Wind Walkers"));
Movie movie = new Movie("tt0472043", "Mel Gibson", Arrays.asList(rudyYoungblood));
ObjectMapper mapper = new ObjectMapper();
String jsonResult = mapper.writeValueAsString(movie);
String expectedOutput = "{\"imdbId\":\"tt0472043\",\"director\":\"Mel Gibson\",\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":401439600000,\"filmography\":[\"Apocalypto\",\"Beatdown\",\"Wind Walkers\"]}]}";
Assert.assertEquals(jsonResult, expectedOutput);
}
@Test
public void whenCustomSerialize_thenCorrect() throws ParseException, IOException {
SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
ActorJackson rudyYoungblood = new ActorJackson("nm2199632", sdf.parse("21-09-1982"), Arrays.asList("Apocalypto", "Beatdown", "Wind Walkers"));
MovieWithNullValue movieWithNullValue = new MovieWithNullValue(null, "Mel Gibson", Arrays.asList(rudyYoungblood));
SimpleModule module = new SimpleModule();
module.addSerializer(new ActorJacksonSerializer(ActorJackson.class));
ObjectMapper mapper = new ObjectMapper();
String jsonResult = mapper.registerModule(module).writer(new DefaultPrettyPrinter()).writeValueAsString(movieWithNullValue);
Object json = mapper.readValue("{\"actors\":[{\"imdbId\":\"nm2199632\",\"dateOfBirth\":\"21-09-1982\",\"N° Film: \":3,\"filmography\":\"Apocalypto-Beatdown-Wind Walkers\"}],\"imdbID\":null}", Object.class);
String expectedOutput = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT).writeValueAsString(json);
Assert.assertEquals(jsonResult, expectedOutput);
}
}