Application of the "FINAGLE Thrift" framework in the Java class library
Application of the "FINAGLE Thrift" framework in the Java class library
1. The characteristics and advantages of the FINAGLE Thrift framework
3. Fleerability: FINAGLE Thrift framework has a built -in fault transfer and fault -tolerant mechanism. It ensures the reliability and stability of the system by automatic retry trial and failure redirection.
4. Monitoring and diagnosis: The FINAGLE Thrift framework provides a set of monitoring and diagnostic tools that can easily analyze performance and fault investigation of services.
2. Application example of using the FINAGLE Thrift framework in the Java library
Example 1: Create a simple service
First, the dependencies of introducing the FINAGLE Thrift framework in the Java project:
<dependency>
<groupId>com.twitter</groupId>
<artifactId>finagle-core_2.12</artifactId>
<version>21.3.0</version>
</dependency>
Then, create a Thrift interface file to define the service interface:
namespace java com.example
service HelloService {
string sayHello(1: string name)
}
Next, use Apache Thrift compiler to generate a Java code:
shell
thrift --gen java hello.thrift
Create server code:
import com.example.HelloService;
import com.twitter.finagle.Thrift;
import com.twitter.util.Future;
public class HelloServiceImpl implements HelloService.MethodPerEndpoint {
@Override
public Future<String> sayHello(String name) {
return Future.value("Hello, " + name);
}
public static void main(String[] args) {
HelloService.MethodPerEndpoint impl = new HelloServiceImpl();
Thrift.serveIface("localhost:8080", impl);
}
}
Create client code:
import com.example.HelloService;
import com.twitter.finagle.Thrift;
import com.twitter.util.Await;
import com.twitter.util.Future;
public class HelloServiceClient {
public static void main(String[] args) {
HelloService.MethodPerEndpoint client = Thrift.newIface("localhost:8080", HelloService.MethodPerEndpoint.class);
Future<String> future = client.sayHello("Alice");
String result = Await.result(future);
System.out.println(result);
}
}
Example 2: Use FINAGLE Thrift for service governance
First, the dependencies of introducing the FINAGLE Thrift framework in the Java project, and some tools for service governance:
<dependency>
<groupId>com.twitter</groupId>
<artifactId>finagle-core_2.12</artifactId>
<version>21.3.0</version>
</dependency>
<dependency>
<groupId>com.twitter</groupId>
<artifactId>finagle-serversets_2.12</artifactId>
<version>21.3.0</version>
</dependency>
<dependency>
<groupId>com.twitter</groupId>
<artifactId>finagle-stats-core_2.12</artifactId>
<version>21.3.0</version>
</dependency>
Then create a Thrift interface file and server client code, similar to Example 1.
Next, use Zookeeper for service registration and discovery.Add the following code to the server code:
import com.twitter.finagle.Thrift;
import com.twitter.finagle.zookeeper.ZookeeperServerSetCluster;
import com.twitter.finagle.zookeeper.ZooKeeperUtils;
import com.twitter.util.Await;
import com.twitter.util.Future;
public class HelloServiceImpl implements HelloService.MethodPerEndpoint {
@Override
public Future<String> sayHello(String name) {
return Future.value("Hello, " + name);
}
public static void main(String[] args) {
HelloService.MethodPerEndpoint impl = new HelloServiceImpl();
ZookeeperServerSetCluster cluster = new ZookeeperServerSetCluster(
Zookeeperutils.newclient ("127.0.0.1:2181", New Duration (1000L)), // Set the zookeeper connection address
new ZookeeperServerSetCluster.EndpointFactory() {
@Override
public InetSocketAddress apply(InetSocketAddress addr) {
return addr;
}
},
"/Services/Hello" // Register service path
);
cluster.Join (New Inetsocketaddress ("LocalHost", 8080); // Binding the service address
Thrift.serveIface("localhost:8080", impl);
}
}
Add the following code to the client code:
import com.example.HelloService;
import com.twitter.finagle.Thrift;
import com.twitter.finagle.stats.DefaultStatsReceiver;
import com.twitter.finagle.stats.NullStatsReceiver;
import com.twitter.finagle.stats.StatsReceiver;
import com.twitter.finagle.zookeeper.ZookeeperServerSetCluster;
import com.twitter.util.Await;
import com.twitter.util.Future;
public class HelloServiceClient {
public static void main(String[] args) {
ZookeeperServerSetCluster cluster = new ZookeeperServerSetCluster(
Zookeeperutils.newclient ("127.0.0.1:2181", New Duration (1000L)), // Set the zookeeper connection address
new ZookeeperServerSetCluster.EndpointFactory() {
@Override
public InetSocketAddress apply(InetSocketAddress addr) {
return addr;
}
},
"/Services/Hello" // Register service path
);
HelloService.MethodPerEndpoint client = Thrift.client()
.withStatsReceiver(DefaultStatsReceiver.get())
.withLoadBalancer(cluster)
.newiface ("Hello"); // Binding the service name
Future<String> future = client.sayHello("Alice");
String result = Await.result(future);
System.out.println(result);
}
}
Through the above example, you can see the flexibility and strength of using the Final Thrift framework in the Java library.This framework can not only help you build efficient, scalable and distributed services, but also support service governance and monitoring, so as to better meet the needs of modern distributed systems.
The above is the knowledge introduction and example code of the application of the "FINAGLE Thrift" framework in the Java library.Hope to help you!
