From ede0282954b10c864506e5683e311a9a746aff37 Mon Sep 17 00:00:00 2001
From: Kai Moritz <k.moritz@extern.lvm.de>
Date: Tue, 11 Aug 2020 08:47:23 +0200
Subject: [PATCH] Initial Version

Minimalistic project to demonstrate the serialization of an
object-graph without Jackons-Annotations.
---
 .gitignore                                    | 31 +++++++++++++
 pom.xml                                       | 45 +++++++++++++++++++
 .../jackson/SerializationExample.java         | 34 ++++++++++++++
 src/main/resources/application.properties     |  1 +
 4 files changed, 111 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 pom.xml
 create mode 100644 src/main/java/de/juplo/examples/jackson/SerializationExample.java
 create mode 100644 src/main/resources/application.properties

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7339146
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,31 @@
+target/
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..fb74279
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.3.2.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>de.juplo.examples.jackson</groupId>
+	<artifactId>noanno</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>noanno</name>
+	<description>Serialize Object-Graph without Jackson-Annotations</description>
+
+	<properties>
+		<java.version>11</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-core</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.datatype</groupId>
+			<artifactId>jackson-datatype-json-org</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>
diff --git a/src/main/java/de/juplo/examples/jackson/SerializationExample.java b/src/main/java/de/juplo/examples/jackson/SerializationExample.java
new file mode 100644
index 0000000..3b2819c
--- /dev/null
+++ b/src/main/java/de/juplo/examples/jackson/SerializationExample.java
@@ -0,0 +1,34 @@
+package de.juplo.examples.jackson;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+public class SerializationExample {
+
+	public static void main(String[] args) throws Exception {
+		ObjectMapper mapper = new ObjectMapper();
+		mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
+		mapper.writeValue(System.out, new Bar());
+	}
+
+	static class Foo {
+		int i = 9;
+		String str = "Hallo Welt!";
+		Map<Integer, String> map =
+				Arrays
+						.asList("A", "B", null, "c", "D")
+						.stream()
+						.collect(HashMap<Integer, String>::new, (m, v) -> m.put(m.size(), v), (m, m2) -> {});
+	}
+
+	static class Bar {
+		int j = 42;
+		Foo foo = new Foo();
+	}
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/main/resources/application.properties
@@ -0,0 +1 @@
+
-- 
2.20.1