From 19a558bfec10492c88db59fa986b32ee938c8738 Mon Sep 17 00:00:00 2001
From: DOHA <dohae243@gmail.com>
Date: Thu, 11 Dec 2014 21:29:11 +0200
Subject: [PATCH] Add Jackson JSON View Test
---
jackson/pom.xml | 27 ++++++
.../jackson/jsonview/Application.java | 14 +++
.../org/baeldung/jackson/jsonview/Item.java | 36 ++++++++
.../jackson/jsonview/ItemManager.java | 10 +++
.../jsonview/MyBeanSerializerModifier.java | 22 +++++
.../jackson/jsonview/UpperCasingWriter.java | 21 +++++
.../org/baeldung/jackson/jsonview/User.java | 28 ++++++
.../jackson/jsonview/UserController.java | 23 +++++
.../org/baeldung/jackson/jsonview/Views.java | 9 ++
.../jackson/test/JacksonJsonViewTest.java | 87 +++++++++++++++++++
10 files changed, 277 insertions(+)
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/Application.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/Item.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/ItemManager.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/MyBeanSerializerModifier.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/UpperCasingWriter.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/User.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/UserController.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/jsonview/Views.java
create mode 100644 jackson/src/test/java/org/baeldung/jackson/test/JacksonJsonViewTest.java
diff --git a/jackson/pom.xml b/jackson/pom.xml
index 654be183f1..501310d622 100644
--- a/jackson/pom.xml
+++ b/jackson/pom.xml
@@ -9,6 +9,33 @@
<dependencies>
+ <!-- Spring -->
+ <dependency>
+ <groupId>org.springframework</groupId>
+ <artifactId>spring-web</artifactId>
+ <version>${org.springframework.version}</version>
+ <exclusions>
+ <exclusion>
+ <artifactId>commons-logging</artifactId>
+ <groupId>commons-logging</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.springframework</groupId>
+ <artifactId>spring-webmvc</artifactId>
+ <version>${org.springframework.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>org.springframework</groupId>
+ <artifactId>spring-oxm</artifactId>
+ <version>${org.springframework.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-web</artifactId>
+ <version>1.1.9.RELEASE</version>
+ </dependency>
<!-- utils -->
<dependency>
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/Application.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/Application.java
new file mode 100644
index 0000000000..eea9745d38
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/Application.java
@@ -0,0 +1,14 @@
+package org.baeldung.jackson.jsonview;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+@ComponentScan
+@EnableAutoConfiguration
+public class Application {
+
+ public static void main(String[] args) {
+ SpringApplication.run(Application.class, args);
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/Item.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/Item.java
new file mode 100644
index 0000000000..758a1338ec
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/Item.java
@@ -0,0 +1,36 @@
+package org.baeldung.jackson.jsonview;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+public class Item {
+ @JsonView(Views.Public.class)
+ public int id;
+
+ @JsonView(Views.Public.class)
+ public String itemName;
+
+ @JsonView(Views.Internal.class)
+ public User owner;
+
+ public Item() {
+ super();
+ }
+
+ public Item(final int id, final String itemName, final User owner) {
+ this.id = id;
+ this.itemName = itemName;
+ this.owner = owner;
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public String getItemName() {
+ return itemName;
+ }
+
+ public User getOwner() {
+ return owner;
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/ItemManager.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/ItemManager.java
new file mode 100644
index 0000000000..0554a8dba3
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/ItemManager.java
@@ -0,0 +1,10 @@
+package org.baeldung.jackson.jsonview;
+
+public class ItemManager {
+
+ public static Item getById(final int id) {
+ final User owner = new User(1, "John");
+ final Item item = new Item(2, "book", owner);
+ return item;
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/MyBeanSerializerModifier.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/MyBeanSerializerModifier.java
new file mode 100644
index 0000000000..0986e5ea76
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/MyBeanSerializerModifier.java
@@ -0,0 +1,22 @@
+package org.baeldung.jackson.jsonview;
+
+import java.util.List;
+
+import com.fasterxml.jackson.databind.BeanDescription;
+import com.fasterxml.jackson.databind.SerializationConfig;
+import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
+import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
+
+public class MyBeanSerializerModifier extends BeanSerializerModifier {
+
+ @Override
+ public List<BeanPropertyWriter> changeProperties(final SerializationConfig config, final BeanDescription beanDesc, final List<BeanPropertyWriter> beanProperties) {
+ for (int i = 0; i < beanProperties.size(); i++) {
+ final BeanPropertyWriter beanPropertyWriter = beanProperties.get(i);
+ if (beanPropertyWriter.getName() == "name") {
+ beanProperties.set(i, new UpperCasingWriter(beanPropertyWriter));
+ }
+ }
+ return beanProperties;
+ }
+}
\ No newline at end of file
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/UpperCasingWriter.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/UpperCasingWriter.java
new file mode 100644
index 0000000000..948fb36cda
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/UpperCasingWriter.java
@@ -0,0 +1,21 @@
+package org.baeldung.jackson.jsonview;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
+
+public class UpperCasingWriter extends BeanPropertyWriter {
+ final BeanPropertyWriter _writer;
+
+ public UpperCasingWriter(final BeanPropertyWriter w) {
+ super(w);
+ _writer = w;
+ }
+
+ @Override
+ public void serializeAsField(final Object bean, final JsonGenerator gen, final SerializerProvider prov) throws Exception {
+ String value = ((User) bean).name;
+ value = (value == null) ? "" : value.toUpperCase();
+ gen.writeStringField("name", value);
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/User.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/User.java
new file mode 100644
index 0000000000..ed51881cf0
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/User.java
@@ -0,0 +1,28 @@
+package org.baeldung.jackson.jsonview;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+public class User {
+ @JsonView(Views.Public.class)
+ public int id;
+
+ @JsonView(Views.Public.class)
+ public String name;
+
+ public User() {
+ super();
+ }
+
+ public User(final int id, final String name) {
+ this.id = id;
+ this.name = name;
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public String getName() {
+ return name;
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/UserController.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/UserController.java
new file mode 100644
index 0000000000..ac487badb1
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/UserController.java
@@ -0,0 +1,23 @@
+package org.baeldung.jackson.jsonview;
+
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+@RestController
+public class UserController {
+
+ @JsonView(Views.Public.class)
+ @RequestMapping("/{id}")
+ public Item getItemPublic(@PathVariable final int id) {
+ return ItemManager.getById(id);
+ }
+
+ @JsonView(Views.Internal.class)
+ @RequestMapping("/internal/{id}")
+ public Item getItemInternal(@PathVariable final int id) {
+ return ItemManager.getById(id);
+ }
+}
\ No newline at end of file
diff --git a/jackson/src/test/java/org/baeldung/jackson/jsonview/Views.java b/jackson/src/test/java/org/baeldung/jackson/jsonview/Views.java
new file mode 100644
index 0000000000..0a430ad123
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/jsonview/Views.java
@@ -0,0 +1,9 @@
+package org.baeldung.jackson.jsonview;
+
+public class Views {
+ public static class Public {
+ }
+
+ public static class Internal extends Public {
+ }
+}
diff --git a/jackson/src/test/java/org/baeldung/jackson/test/JacksonJsonViewTest.java b/jackson/src/test/java/org/baeldung/jackson/test/JacksonJsonViewTest.java
new file mode 100644
index 0000000000..0f0e4272e5
--- /dev/null
+++ b/jackson/src/test/java/org/baeldung/jackson/test/JacksonJsonViewTest.java
@@ -0,0 +1,87 @@
+package org.baeldung.jackson.test;
+
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.not;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+
+import java.io.IOException;
+
+import org.baeldung.jackson.jsonview.Item;
+import org.baeldung.jackson.jsonview.MyBeanSerializerModifier;
+import org.baeldung.jackson.jsonview.User;
+import org.baeldung.jackson.jsonview.Views;
+import org.junit.Test;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ser.BeanSerializerFactory;
+import com.fasterxml.jackson.databind.ser.SerializerFactory;
+
+public class JacksonJsonViewTest {
+
+ @Test
+ public void whenUseJsonViewToSerialize_thenCorrect() throws JsonProcessingException {
+ final User user = new User(1, "John");
+
+ final ObjectMapper mapper = new ObjectMapper();
+ final String result = mapper.writerWithView(Views.Public.class).writeValueAsString(user);
+
+ assertThat(result, containsString("John"));
+ assertThat(result, containsString("1"));
+ }
+
+ @Test
+ public void whenUsePublicView_thenOnlyPublicSerialized() throws JsonProcessingException {
+ final User owner = new User(1, "John");
+ final Item item = new Item(2, "book", owner);
+
+ final ObjectMapper mapper = new ObjectMapper();
+ final String result = mapper.writerWithView(Views.Public.class).writeValueAsString(item);
+
+ assertThat(result, containsString("book"));
+ assertThat(result, containsString("2"));
+
+ assertThat(result, not(containsString("John")));
+ assertThat(result, not(containsString("1")));
+ }
+
+ @Test
+ public void whenUseInternalView_thenAllSerialized() throws JsonProcessingException {
+ final User owner = new User(1, "John");
+ final Item item = new Item(2, "book", owner);
+
+ final ObjectMapper mapper = new ObjectMapper();
+ final String result = mapper.writerWithView(Views.Internal.class).writeValueAsString(item);
+
+ assertThat(result, containsString("book"));
+ assertThat(result, containsString("2"));
+
+ assertThat(result, containsString("John"));
+ assertThat(result, containsString("1"));
+ }
+
+ @Test
+ public void whenUseJsonViewToDeserialize_thenCorrect() throws IOException {
+ final String json = "{\"id\":1,\"name\":\"John\"}";
+
+ final ObjectMapper mapper = new ObjectMapper();
+
+ final User user = mapper.readerWithView(Views.Public.class).withType(User.class).readValue(json);
+ assertEquals(1, user.getId());
+ assertEquals("John", user.getName());
+ }
+
+ @Test
+ public void whenUseCustomJsonViewToSerialize_thenCorrect() throws JsonProcessingException {
+ final User user = new User(1, "John");
+ final SerializerFactory serializerFactory = BeanSerializerFactory.instance.withSerializerModifier(new MyBeanSerializerModifier());
+
+ final ObjectMapper mapper = new ObjectMapper();
+ mapper.setSerializerFactory(serializerFactory);
+
+ final String result = mapper.writerWithView(Views.Public.class).writeValueAsString(user);
+ assertThat(result, containsString("JOHN"));
+ assertThat(result, containsString("1"));
+ }
+}
\ No newline at end of file