Use MSGPACK Scala to build high -performance Java class libraries: practical skills and experience sharing
Use MSGPACK Scala to build high -performance Java class libraries: practical skills and experience sharing
Introduction:
In the design of big data processing and distributed systems, in order to improve performance and reduce data transmission overhead, efficient data serialization and back -sequentialization are usually used.MSGPACK is a fast, compact and transplantable binary serialization format that can be used to achieve high -performance data transmission and storage in the Java class library.This article will introduce how to use MSGPACK SCALA to build a high -performance Java class library and share some practical skills and experience.
1. Add dependencies
First, add MSGPACK Scala to your Java project.You can add the following code to the pom.xml file:
<dependency>
<groupId>org.msgpack</groupId>
<artifactId>msgpack-core</artifactId>
<version>0.8.12</version>
</dependency>
2. Create a java class library
Create a Java class library to define data structures and operations that need to be serialized and deeper.
import org.msgpack.core.MessagePack;
import org.msgpack.core.MessageBufferPacker;
import org.msgpack.core.MessageUnpacker;
import java.io.IOException;
public class MsgPackSerializer {
public byte[] serialize(Object obj) throws IOException {
MessageBufferPacker packer = MessagePack.newDefaultBufferPacker();
packer.packObject(obj);
byte[] packedData = packer.toByteArray();
packer.close();
return packedData;
}
public <T> T deserialize(byte[] data, Class<T> type) throws IOException {
MessageUnpacker unpacker = MessagePack.newDefaultUnpacker(data);
T obj = unpacker.unpackValue().as(type);
unpacker.close();
return obj;
}
}
In the above code, we use the method provided by MSGPACK's MESSAGEPACK class for serialization and derivative operation.The serviceize () method packs the object into a byte array, and the deserialize () method will be packaged into a specified type object.
3. Use the Java class library
The Java class library built with MSGPACK Scala is very simple.Just create an MSGPACKSERIALIZER object and call its Serialize () and Deserialize () methods for serialization and derivativeization.
public class Main {
public static void main(String[] args) throws IOException {
MsgPackSerializer serializer = new MsgPackSerializer();
// Serialization operation
MyData data = new MyData(1, "Hello");
byte[] packedData = serializer.serialize(data);
// Reverse -sequentialization operation
MyData unpackedData = serializer.deserialize(packedData, MyData.class);
}
}
class MyData {
private int id;
private String message;
// Must be provided with a parameter constructing function
public MyData() {}
public MyData(int id, String message) {
this.id = id;
this.message = message;
}
// omit the getter and setter method
}
In the above examples, we created a simple data class called "MyData" and used the MSGPACKSERIZER class to serialize and deeperate operations.
4. Practical skills and experience sharing
-For large -scale complex objects, you can use the ObjectPacker class of MSGPACK to improve performance.Because the ObjectPacker class supports separate serialization and derivativeization of different fields.
-If you need to process a large amount of data flow, you can consider using the Stream API of MSGPACK instead of the default Object API.The Streaming API does not need to read all data into memory at one time, but to process the data flow one by one, which is actually more suitable for processing large -scale data.
-At the object that needs to be serialized frequently and derivativeization, you can consider using the Template function of MSGPACK.The predetermined template can significantly improve performance, because they avoid scanning the expenses defined by scanning the definition of the class every time they perform the operation.
in conclusion:
Using MSGPACK Scala to build a high -performance Java class library can significantly improve the performance and transmission performance.This article introduces how to use MSGPACK SCALA to build a Java class library and share some practical skills and experience.I hope these contents will help you build a high -performance Java library.
