001/**
002 * Copyright (C) 2006-2025 Talend Inc. - www.talend.com
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.talend.sdk.component.runtime.manager.service;
017
018import static org.talend.sdk.component.runtime.base.lang.exception.InvocationExceptionWrapper.toRuntimeException;
019
020import java.lang.reflect.InvocationTargetException;
021import java.util.Map;
022
023import org.talend.sdk.component.api.service.BaseService;
024import org.talend.sdk.component.classloader.ThreadHelper;
025import org.talend.sdk.component.runtime.manager.asm.ProxyGenerator;
026import org.talend.sdk.component.runtime.manager.interceptor.InterceptorHandlerFacade;
027import org.talend.sdk.component.runtime.serialization.SerializableService;
028
029import lombok.RequiredArgsConstructor;
030
031@RequiredArgsConstructor
032public class ServiceHelper {
033
034    /** proxy generator */
035    private final ProxyGenerator proxyGenerator;
036
037    /** all current services */
038    private final Map<Class<?>, Object> allServices;
039
040    /**
041     * Create an instance of a Service with serialisation system and interceptors ...
042     * 
043     * @param loader : class loader.
044     * @param containerId : container id.
045     * @param serviceClass : class of service.
046     * @return instance of service.
047     * @throws NoSuchMethodException if no default constructor.
048     */
049    public Object createServiceInstance(final ClassLoader loader, final String containerId, final Class<?> serviceClass)
050            throws NoSuchMethodException {
051        try {
052            final Class<?> proxyClass = this.handleProxy(loader, containerId, serviceClass);
053            final Object instance = proxyClass.getConstructor().newInstance();
054
055            if (proxyGenerator.hasInterceptors(serviceClass)) {
056                proxyGenerator
057                        .initialize(instance,
058                                new InterceptorHandlerFacade(serviceClass.getConstructor().newInstance(), allServices));
059            }
060            if (instance instanceof BaseService) {
061                this.updateService((BaseService) instance, containerId, serviceClass.getName());
062            }
063            return instance;
064        } catch (final InstantiationException | IllegalAccessException e) {
065            throw new IllegalArgumentException(e);
066        } catch (final InvocationTargetException e) {
067            throw toRuntimeException(e);
068        }
069    }
070
071    private Class<?> handleProxy(final ClassLoader loader, final String containerId, final Class<?> type) {
072        if (!proxyGenerator.hasInterceptors(type) && proxyGenerator.isSerializable(type)) {
073            return type;
074        }
075
076        return ThreadHelper
077                .runWithClassLoader(() -> proxyGenerator.generateProxy(loader, type, containerId, type.getName()),
078                        loader);
079
080    }
081
082    private void updateService(final BaseService service, final String pluginId, final String key) {
083        if (service.getSerializationHelper() == null) {
084            service.setSerializationHelper(new SerializableService(pluginId, key));
085        }
086    }
087}