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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,38 @@ | ||
| { | ||
| "files.exclude": { | ||
| "**/.classpath": true, | ||
| "**/.project": true, | ||
| "**/.settings": true, | ||
| "**/.factorypath": true, | ||
| "**/target": true | ||
| }, | ||
| "files.associations": { | ||
| "cstddef": "cpp" | ||
| { "files.exclude": { | ||
| "**/.classpath": true, | ||
| "**/.project": true, | ||
| "**/.settings": true, | ||
| "**/.factorypath": true, | ||
| "**/target": true | ||
| }, | ||
| "files.associations": { | ||
| "cstddef": "cpp" | ||
| }, | ||
| "terminal.integrated.scrollback": 9999, | ||
| "jest.rootPath": "app", | ||
| "jest.jestCommandLine": "npx jest --runInBand --verbose", | ||
| "jest.autoRun": "off", | ||
| "jest.monitorLongRun": 120000, | ||
| "jest.showCoverageOnLoad": false, | ||
| "jest.coverageFormatter": "GutterFormatter", | ||
| "editor.formatOnSave": true, | ||
| "editor.codeActionsOnSave": { | ||
| "source.organizeImports": true | ||
| }, | ||
| "typescript.tsdk": "./app/node_modules/typescript/lib", | ||
| "typescript.enablePromptUseWorkspaceTsdk": true, | ||
| "editor.tabSize": 2, | ||
| "[typescript]": { | ||
| "editor.defaultFormatter": "esbenp.prettier-vscode" | ||
| }, | ||
| "[typescriptreact]": { | ||
| "editor.defaultFormatter": "esbenp.prettier-vscode" | ||
| }, | ||
| "[javascript]": { | ||
| "editor.defaultFormatter": "esbenp.prettier-vscode" | ||
| }, | ||
| "[javascriptreact]": { | ||
| "editor.defaultFormatter": "esbenp.prettier-vscode" | ||
| } | ||
| } | ||
| } | ||
|
|
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124 changes: 67 additions & 57 deletions
124
src/main/java/org/myrobotlab/framework/ProxyFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,77 +1,87 @@ | ||
| package org.myrobotlab.framework; | ||
|
|
||
| import net.bytebuddy.ByteBuddy; | ||
| import net.bytebuddy.dynamic.DynamicType; | ||
| import net.bytebuddy.dynamic.loading.ClassLoadingStrategy; | ||
| import net.bytebuddy.implementation.MethodDelegation; | ||
| import org.myrobotlab.framework.interfaces.ServiceInterface; | ||
| import static net.bytebuddy.matcher.ElementMatchers.any; | ||
|
|
||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import static net.bytebuddy.matcher.ElementMatchers.any; | ||
| import org.myrobotlab.framework.interfaces.ServiceInterface; | ||
| import org.myrobotlab.logging.LoggerFactory; | ||
| import org.slf4j.Logger; | ||
|
|
||
| import net.bytebuddy.ByteBuddy; | ||
| import net.bytebuddy.dynamic.DynamicType; | ||
| import net.bytebuddy.dynamic.loading.ClassLoadingStrategy; | ||
| import net.bytebuddy.implementation.MethodDelegation; | ||
|
|
||
| /** | ||
| * ProxyFactory takes a service description via {@link Registration} | ||
| * and uses <a href="https://bytebuddy.net/#/">ByteBuddy</a> to generate | ||
| * a new class and instance for it, delegating all method calls to a new instance | ||
| * of {@link ProxyInterceptor}. The registration must contain at least the | ||
| * fully-qualified name of {@link ServiceInterface} in its {@link Registration#interfaces} | ||
| * list. If this name is not present, an {@link IllegalArgumentException} is thrown. | ||
| * ProxyFactory takes a service description via {@link Registration} and uses | ||
| * <a href="https://bytebuddy.net/#/">ByteBuddy</a> to generate a new class and | ||
| * instance for it, delegating all method calls to a new instance of | ||
| * {@link ProxyInterceptor}. The registration must contain at least the | ||
| * fully-qualified name of {@link ServiceInterface} in its | ||
| * {@link Registration#interfaces} list. If this name is not present, an | ||
| * {@link IllegalArgumentException} is thrown. | ||
| * | ||
| * @author AutonomicPerfectionist | ||
| */ | ||
| public class ProxyFactory { | ||
|
|
||
| /** | ||
| * Creates a proxy class and instantiates it using the given registration. | ||
| * If the registration's {@link Registration#interfaces} list does not contain | ||
| * the fully-qualified name of {@link ServiceInterface}, an {@link IllegalArgumentException} | ||
| * is thrown. The generated proxy uses the name, id, and interfaces present in | ||
| * the registration to create the new service. The proxy | ||
| * delegates to a new instance of {@link ProxyInterceptor}. | ||
| * | ||
| * @param registration The information required to generate a new proxy | ||
| * @return A newly-instantiated proxy | ||
| * @throws IllegalArgumentException if registration's interfaces list | ||
| * does not contain ServiceInterface | ||
| */ | ||
| public static ServiceInterface createProxyService(Registration registration) { | ||
| // TODO add caching support | ||
| if (!registration.interfaces.contains(ServiceInterface.class.getName())) { | ||
| throw new IllegalArgumentException( | ||
| "Registration must list at least ServiceInterface in the interfaces list." | ||
| ); | ||
| } | ||
| ByteBuddy buddy = new ByteBuddy(); | ||
| DynamicType.Builder<?> builder = buddy.subclass(Object.class); | ||
| List<Class<?>> interfaceClasses = registration.interfaces.stream().map(i -> { | ||
| try { | ||
| return Class.forName(i); | ||
| } catch (ClassNotFoundException e) { | ||
| throw new RuntimeException("Unable to load interface " + i + " for registration " + registration, e); | ||
| } | ||
| }).collect(Collectors.toList()); | ||
| transient public final static Logger log = LoggerFactory.getLogger(ProxyFactory.class); | ||
|
|
||
| /** | ||
| * Creates a proxy class and instantiates it using the given registration. If | ||
| * the registration's {@link Registration#interfaces} list does not contain | ||
| * the fully-qualified name of {@link ServiceInterface}, an | ||
| * {@link IllegalArgumentException} is thrown. The generated proxy uses the | ||
| * name, id, and interfaces present in the registration to create the new | ||
| * service. The proxy delegates to a new instance of {@link ProxyInterceptor}. | ||
| * | ||
| * @param registration | ||
| * The information required to generate a new proxy | ||
| * @return A newly-instantiated proxy | ||
| * @throws IllegalArgumentException | ||
| * if registration's interfaces list does not | ||
| * contain | ||
| * ServiceInterface | ||
| */ | ||
| public static ServiceInterface createProxyService(Registration registration) { | ||
|
|
||
| builder = builder.implement(interfaceClasses) | ||
| .method(any()) | ||
| .intercept(MethodDelegation | ||
| .withDefaultConfiguration() | ||
| .to(new ProxyInterceptor(registration.name, registration.id))); | ||
| if (registration.interfaces == null) { | ||
| log.info("remote did not provide any interfaces, creating minimal getId and getName from registration data"); | ||
| } else { | ||
| // TODO add caching support | ||
| if (!registration.interfaces.contains(ServiceInterface.class.getName())) { | ||
| throw new IllegalArgumentException("Registration must list at least ServiceInterface in the interfaces list."); | ||
| } | ||
| } | ||
| ByteBuddy buddy = new ByteBuddy(); | ||
| DynamicType.Builder<?> builder = buddy.subclass(Object.class); | ||
| List<Class<?>> interfaceClasses = registration.interfaces.stream().map(i -> { | ||
| try { | ||
| return Class.forName(i); | ||
| } catch (ClassNotFoundException e) { | ||
| throw new RuntimeException("Unable to load interface " + i + " for registration " + registration, e); | ||
| } | ||
| }).collect(Collectors.toList()); | ||
|
|
||
| builder = builder.implement(interfaceClasses).method(any()).intercept(MethodDelegation.withDefaultConfiguration() | ||
| .to(new ProxyInterceptor(registration.name, registration.id, registration.typeKey))); | ||
|
|
||
| Class<?> proxyClass = builder.make() | ||
| .load(ProxyFactory.class.getClassLoader(), ClassLoadingStrategy.Default.WRAPPER) | ||
| .getLoaded(); | ||
| try { | ||
| // We never defined any constructors so the default no-args is available | ||
| return (ServiceInterface) proxyClass.getConstructors()[0].newInstance(); | ||
| Class<?> proxyClass = builder.make().load(ProxyFactory.class.getClassLoader(), ClassLoadingStrategy.Default.WRAPPER) | ||
| .getLoaded(); | ||
| try { | ||
| // We never defined any constructors so the default no-args is available | ||
| ServiceInterface si = (ServiceInterface) proxyClass.getConstructors()[0].newInstance(); | ||
| MethodCache cache = MethodCache.getInstance(); | ||
| cache.cacheMethodEntries(si.getClass()); | ||
| return si; | ||
|
|
||
| } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) { | ||
| // Really shouldn't happen since we have full control over the | ||
| // newly-generated class | ||
| throw new RuntimeException(e); | ||
| } | ||
| } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) { | ||
| // Really shouldn't happen since we have full control over the | ||
| // newly-generated class | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
| } |
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