This is an implementation of Json for Java. Json is used for almost all data serialization on the internet. Its a lightweight fast data serialization. Wikipedia
Here are some examples of this library compared to other major data serialization methods.
Serialization / Encoding
Method | Time in Mills |
---|---|
Bencode | 57 |
JSON | ~ |
Parsing
Method | Time in Mills |
---|---|
Bencode | 83 |
JSON | ~ |
Byte Size when encoded
Method | Bytes |
---|---|
Bencode | 10134606 |
JSON | ~ |
The JAR for the library can be found here: Json JAR
Here are some examples of how to use the Json library. More
Json Array
//FROM LIST
ArrayList<String> l = new ArrayList<>();
JsonArray jar = new JsonArray(l);
//FROM BYTES
byte[] b; //ARRAY OF BYTES
JsonArray jar = new JsonArray(b);
//CREATE JSON
JsonArray jar = new JsonArray();
//ADD | GET
jar.add(1000);
System.out.println(jar.get(0));
Json Object | Map
//FROM MAP
HashMap<String, String> l = new HashMap<>();
JsonObject job = new JsonObject(l);
//FROM BYTES
byte[] b; //ARRAY OF BYTES
JsonObject job = new JsonObject(b);
//CREATE JSON
JsonObject job = new JsonObject();
//PUT | GET
job.put("KEY", 100);
System.out.println(job.get("KEY"));
Encoding to byte array
bar.encode();
Readable String
System.out.println(bar.toString());
Annotation Serialization
public static void main(String[] args)throws Exception {
JsonObject json = new JsonObject();
json.put("title", "Annotation Test");
//SERIALIZE
Foo f = (Foo) Json.fromJson(Foo.class, json);
System.out.println(f.getTitle()); //SHOULD RETURN - "Annotation Test"
//DE-SERIALIZE
json = Json.toJson(f);
}
public static class Foo {
@JsonExpose
private String title;
public String getTitle(){
return title;
}
public void setTitle(String title){
this.title = title;
}
}
Annotation Serialization I/O
public static void main(String[] args)throws Exception {
//READ
JsonToClassReader r = new JsonToClassReader(new ByteArrayInputStream(json.encode())); //WILL WORK WITH ANY INPUT-STREAM
Foo f = (Foo) r.readToClass(Foo.class);
r.close();
System.out.println(f.getTitle());
//WRITE
JsonFromClassWriter w = new JsonFromClassWriter(System.out); //WILL WORK WITH ANY OUTPUT-STREAM
w.writeClass(f);
w.flush();
}
public static class Foo {
@JsonExpose
private String title;
public String getTitle(){
return title;
}
public void setTitle(String title){
this.title = title;
}
}