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• Java – DI 1
• ( )
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• FaaS
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• ICT
ICTDX
• :
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Spring Framework Hibernate
• Web 10 20
• EOL
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Web
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• Spring+Hibernate/Quarkus+Hibernate/JAX-RS+Hibernate/JAX-RS+DbUtils
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• 100 Entity 1 20
• 400 Service Entity CRUD
• 400 Controller MPA Web
• 900
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• Controller
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※2025
/
#
DI 10
EntityManager 10
22
Spring Web MVC + Hibernate
JVM /Native Image
20
Quarkus + Hibernate
DI
8
JAX-RS/RestEasy + Hibernate
ORM
2
JAX-RS/RestEasy + Commons
DbUtils
Quarkus 20 Quarkus
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DI ORM
DI ORM
DI
DI ORM
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1
DI
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SOLID D DIP
Dependency Inversion Principle
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• DIP
( )
NG
OK OK
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• DI
•
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// DI
public class OrderService {
//
// DI
public OrderService(PaymentService paymentService) {
this.paymentService = paymentService;
}
}
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//
public class OrderService {
private final PaymentService paymentService;
//
// ServiceLocator
public OrderService() {
this.paymentService = ServiceLocator.get(PaymentService.class);
}
}
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DI
DI
DIP
FW
FW
DI
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DiRegistry Dependency Inversion
Registry
• ID
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•
DiRegistry DI Dependency Injection DIP Dependency Inversion
Principle
Composition Root
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24
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DiRegistry
// ID
public enum AppResources {
APP_ENGINE_CONFIG,
DB_SESSION_FACTORY,
}
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// DiRegistryBase extends
public class AppRegistry extends DiRegistryBase {
//
//
public final static DiProfile PROFILE =
DiProfile.builder()
//
.resource(
AppResources.DB_SESSION_FACTORY, // ID
"com.example.fw.db.SessionFactoryImpl", //
new String[] {
"hikaricp.properties" //
}
)
.resource(……)
.build();
}
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public class AppRegistry extends DiRegistryBase {
// ……
public AppRegistry() {
this(PROFILE);
}
public static AppRegistry getInstance() {
return INSTANCE;
}
public static AppRegistry setProfile(DiProfile profile) {
PROFILE = profile;
}
}
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var factory = (SessionFactory)
AppRegistry.getInstance().get(AppResources.DB_SESSION_FACTORY);
var session = factory.openSession();
AppRegistry
AppRegistry get Object
AppRegistry
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public interface DiRegistry {
T get(R key) throws SystemException;
}
public abstract class DiRegistryBase implements DiRegistry {
//
// ConcurrentHashMap
private final DiProfile profile;
public DiRegistryBase(DiProfile profile) {
this.profile = profile;
}
@Override
public T get(R key) throws SystemException {
return (T) getResource(key);
}
}
DiRegistry
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public abstract class DiRegistryBase implements DiRegistry {
//
private Object getResource(R key) throws SystemException {
var diResource = profile.getResources().stream()
.filter(resource -> resource.getResource().equals(key))
.findFirst()
.orElse(null);
try {
//
return Class.forName(diResource.getClassName()).
getConstructor(String[].class).
newInstance(diResource.getArgs());
} catch (Exception e) {
throw new SystemException(e);
}
}
}
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public abstract class AppTestBase { //
static {
AppRegistry.setProfile( //
DiProfile.builder()
// ......
.resource(
AppResources.DB_SESSION_FACTORY,
"com.example.fw.db.MockSessionFactoryImpl",
new String[] {}
)
.build()
); } }
DiRegistry
DiRegistry
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DIP
900
20 2 1
DiRegistry
DI
DIP
FW
FW
1-2
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•
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• Spring Framework
Spring Framework Hibernate Web
jar 150MB 20MB
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DiRegistry
Spring Framework
DI
DiRegistry
ConfigFactory
ScopeManager
AOP
InterceptorChain
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Spring Framework
DiRegistry
• Auth
• JDBC
• Batch/OnBach
• Appserver
• Template
• FaaS
• ……
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EOL
DiRegistry
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• EOL DiRegistry
• JPMS Java Platform Module System
• JPMS
•
DiRegistry
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v2
v1
EOL
v1
v2
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src/main/java/
├─ module-info.java // JPMS
├┬ com.example.fw.mail/ //
│├─ MailFactory (interface)
│└─ Mail (interface)
├┬ com.example.fw.mail.javamail/ // JavaMail
│├─ MailFactoryImpl
│└─ MailImpl
└┬ com.example.fw.mail.sesv2/ // AmazonSES
├─ MailFactoryImpl
└─ MailImpl
JavaMail AmazonSES Mail
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// module-info.java
module com.example.fw.mail {
exports com.example.fw.mail; //
// exports com.example.fw.mail.javamail //
// exports com.example.fw.mail.sesv2 //
opens com.example.fw.mail.javamail to com.example.fw.core; // DiRegistry
javamail
opens com.example.fw.mail.sesv2 to com.example.fw.core; // DiRegistry
sesv2
requires jakarta.mail;
requires software.amazon.awssdk.services.sesv2;
}
module-info.java
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// com.example.fw.mail
public interface MailFactory {
Mail newMail(String mailId);
}
// com.example.fw.mail
public interface Mail {
void addTo(String mailAddress);
void setSubject(String subject);
void setBody(String body);
void send() throws SystemException;
}
MailFactory
Mail
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public class MailFactoryImpl implements MailFactory {
private final MailConfig config;
public MailFactoryImpl(String[] args) {
this.config = ConfigFactory.getConfig(args[0], MailConfig.class);
}
@Override public Mail newMail(String mailId) {
return new MailImpl(this, mailId);
}
}
public class MailImpl implements Mail {
@Override public void send() throws SystemException {
var mail = render(getMailRenderer());
getMailSender().sendMail(mail);
}
}
JavaMail MailFactoryImpl
MailImpl
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dependencies {
// Core dependencies
implementation(libs.slf4j.api)
// CompileOnly dependencies
compileOnly(libs.jakarta.mail)
compileOnly(libs.angus.mail)
compileOnly(platform(libs.awssdk2.bom))
compileOnly(libs.awssdk2.ses)
// RuntimeOnly dependencies
runtimeOnly(libs.logback.core)
runtimeOnly(libs.logback.classic)
}
Gradle dependencies JavaMail AmazonSES
compileOnly
runtimeOnly
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public class AppRegistry extends DiRegistryBase {
public final static DiProfile PROFILE =
DiProfile.builder()
// ......
.resource(
AppResources.MAIL_FACTORY,
// JavaMail Amazon SES
"com.example.fw.mail.javamail.MailFactoryImpl",
// "com.example.fw.mail.sesv2.MailFactoryImpl",
new String[] { //
"mail-config.yaml",
}
)
.build();
}
DiRegistry
MailFactory
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// DiRegistry
// JPMS
var mailFactory =
(MailFactory) AppRegistry.getInstance().get(AppResources.MAIL_FACTORY);
var mail = mailFactory.newMail("HELLO_WORLD");
mail.addTo("[email protected]");
mail.setSubject("Hello,world");
mail.setBody("Hello,world!");
mail.send(); // JavaMail
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• Java interface
• Java
• JPMS record enum
•
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• Javadoc
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getUnsafeContext(contextName)
var httpClient = AppRegistry.getInstance().get(AppResources.HTTP_CLIENT);
// apacheHttpClient
var apacheHttpClient = httpClient.getUnsafeContext("apacheHttpClient");
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REST API FaaS AWS
Lambda
DB 1 S3 1
( FW/Python/SpringBoot) REST API
SnapStart
SnapStart
Lambda
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SnapStart
30 ms
3,500 ms
SnapStart 12MB 512MB
FW
300 ms
1,500 ms
SnapStart 0.8MB 512MB
Python
30 ms
9,000 ms
SnapStart 34MB 512MB
SpringBoot
※ SnapStart
DiRegistry
2MB JDBC
2
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JDBC S3Client
:100 400 400
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• FaaS static
• DB S3
• DiRegistry DataSource
• DiRegistry
• JDBC SnapStart
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DataSource
SnapStart DB
TCP
Stale
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public class Application implements RequestHandler<……> {
static { warmUpAndRestart(); } // static
private static void warmUpAndRestart() {
//
Map input = Map.of(……); // /system/dbS3Ping
getFunctionDispatcher().dispatch(input, Map.of());
//
AppRegistry.getInstance().restart();
}
}
static warmUpAndRestart SnapStart
static
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FW Lambda 2
Python
30 ms
3,500 ms → 1,700 ms
SnapStart 12MB 512MB
FW
300 ms
1,500 ms
SnapStart 0.8MB 512MB
Python
30 ms
9,000 ms
SnapStart 34MB 512MB
SpringBoot
※ SnapStart
DiRegistry DiRegistry
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Java REST API Web FaaS
• Tomcat AP
• AP FaaS
• DB AWS RDS Proxy
• Java FaaS
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•
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•
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• (JPMS)
• FaaS
•
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•
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•
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No content