| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.k.support; |
| |
| import java.util.List; |
| import java.util.function.Consumer; |
| |
| import org.apache.camel.RoutesBuilder; |
| import org.apache.camel.RuntimeCamelException; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.builder.RouteBuilderLifecycleStrategy; |
| import org.apache.camel.k.Runtime; |
| import org.apache.camel.k.RuntimeAware; |
| import org.apache.camel.k.Source; |
| import org.apache.camel.k.SourceDefinition; |
| import org.apache.camel.k.SourceLoader; |
| import org.apache.camel.k.SourceType; |
| import org.apache.camel.k.Sources; |
| import org.apache.camel.k.listener.AbstractPhaseListener; |
| import org.apache.camel.k.listener.SourcesConfigurer; |
| import org.apache.camel.model.RouteDefinition; |
| import org.apache.camel.model.RouteTemplateDefinition; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public final class SourcesSupport { |
| private static final Logger LOGGER = LoggerFactory.getLogger(SourcesConfigurer.class); |
| |
| private SourcesSupport() { |
| } |
| |
| public static Runtime.Listener forRoutes(String... sources) { |
| return new AbstractPhaseListener(Runtime.Phase.ConfigureRoutes) { |
| @Override |
| protected void accept(Runtime runtime) { |
| loadSources(runtime, sources); |
| } |
| }; |
| } |
| |
| public static Runtime.Listener forRoutes(SourceDefinition... definitions) { |
| return new AbstractPhaseListener(Runtime.Phase.ConfigureRoutes) { |
| @Override |
| protected void accept(Runtime runtime) { |
| loadSources(runtime, definitions); |
| } |
| }; |
| } |
| |
| public static void loadSources(Runtime runtime, String... routes) { |
| for (String route: routes) { |
| if (ObjectHelper.isEmpty(route)) { |
| continue; |
| } |
| |
| LOGGER.info("Loading routes from: {}", route); |
| |
| try { |
| load(runtime, Sources.fromURI(route)); |
| } catch (Exception e) { |
| throw RuntimeCamelException.wrapRuntimeCamelException(e); |
| } |
| } |
| } |
| |
| public static void loadSources(Runtime runtime, SourceDefinition... definitions) { |
| for (SourceDefinition definition: definitions) { |
| LOGGER.info("Loading routes from: {}", definition); |
| |
| load(runtime, Sources.fromDefinition(definition)); |
| } |
| } |
| |
| public static SourceLoader load(Runtime runtime, Source source) { |
| final SourceLoader loader = RuntimeSupport.loaderFor(runtime.getCamelContext(), source); |
| final List<SourceLoader.Interceptor> interceptors = source.getType() == SourceType.source |
| ? sourceInterceptors(runtime, source) |
| : templateInterceptors(source); |
| |
| try { |
| for (SourceLoader.Interceptor interceptor: interceptors) { |
| if (interceptor instanceof RuntimeAware) { |
| ((RuntimeAware) interceptor).setRuntime(runtime); |
| } |
| |
| interceptor.beforeLoad(loader, source); |
| } |
| |
| RoutesBuilder result = loader.load(runtime, source); |
| |
| for (SourceLoader.Interceptor interceptor: interceptors) { |
| result = interceptor.afterLoad(loader, source, result); |
| } |
| |
| runtime.addRoutes(result); |
| } catch (Exception e) { |
| throw RuntimeCamelException.wrapRuntimeCamelException(e); |
| } |
| |
| return loader; |
| } |
| |
| private static List<SourceLoader.Interceptor> sourceInterceptors(Runtime runtime, Source source) { |
| return RuntimeSupport.loadInterceptors(runtime.getCamelContext(), source); |
| } |
| |
| private static List<SourceLoader.Interceptor> templateInterceptors(Source source) { |
| if (!source.getInterceptors().isEmpty()) { |
| LOGGER.warn("Interceptors associated to the route template {} will be ignored", source.getName()); |
| } |
| |
| return List.of( |
| new SourceLoader.Interceptor() { |
| @Override |
| public RoutesBuilder afterLoad(SourceLoader loader, Source source, RoutesBuilder builder) { |
| return SourcesSupport.afterConfigure(builder, rb -> { |
| rb.addLifecycleInterceptor(new RouteBuilderLifecycleStrategy() { |
| @Override |
| public void afterConfigure(RouteBuilder builder) { |
| List<RouteDefinition> routes = builder.getRouteCollection().getRoutes(); |
| List<RouteTemplateDefinition> templates = builder.getRouteTemplateCollection().getRouteTemplates(); |
| |
| if (routes.size() != 1) { |
| throw new IllegalArgumentException("There should be a single route definition, got " + routes.size()); |
| } |
| if (!templates.isEmpty()) { |
| throw new IllegalArgumentException("There should not be any template, got " + templates.size()); |
| } |
| |
| // create a new template from the source |
| RouteTemplateDefinition templatesDefinition = builder.getRouteTemplateCollection().routeTemplate(source.getId()); |
| templatesDefinition.setRoute(routes.get(0)); |
| |
| source.getPropertyNames().forEach(templatesDefinition::templateParameter); |
| |
| // remove all routes definitions as they have been translated |
| // in the related route template |
| routes.clear(); |
| } |
| }); |
| }); |
| } |
| } |
| ); |
| } |
| |
| public static RoutesBuilder beforeConfigure(RoutesBuilder builder, Consumer<RouteBuilder> consumer) { |
| if (builder instanceof RouteBuilder) { |
| ((RouteBuilder) builder).addLifecycleInterceptor(beforeConfigure(consumer)); |
| } |
| return builder; |
| } |
| |
| public static RouteBuilderLifecycleStrategy beforeConfigure(Consumer<RouteBuilder> consumer) { |
| return new RouteBuilderLifecycleStrategy() { |
| @Override |
| public void beforeConfigure(RouteBuilder builder) { |
| consumer.accept(builder); |
| } |
| }; |
| } |
| |
| public static RoutesBuilder afterConfigure(RoutesBuilder builder, Consumer<RouteBuilder> consumer) { |
| if (builder instanceof RouteBuilder) { |
| ((RouteBuilder) builder).addLifecycleInterceptor(afterConfigure(consumer)); |
| } |
| return builder; |
| } |
| |
| public static RouteBuilderLifecycleStrategy afterConfigure(Consumer<RouteBuilder> consumer) { |
| return new RouteBuilderLifecycleStrategy() { |
| @Override |
| public void afterConfigure(RouteBuilder builder) { |
| consumer.accept(builder); |
| } |
| }; |
| } |
| } |