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package org.apache.camel.spring; |
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import java.util.ArrayList; |
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import java.util.List; |
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import javax.xml.bind.annotation.XmlAccessType; |
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import javax.xml.bind.annotation.XmlAccessorType; |
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import javax.xml.bind.annotation.XmlElement; |
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import javax.xml.bind.annotation.XmlElements; |
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import javax.xml.bind.annotation.XmlRootElement; |
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import javax.xml.bind.annotation.XmlTransient; |
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import org.apache.camel.RuntimeCamelException; |
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import org.apache.camel.builder.RouteBuilder; |
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import org.apache.camel.model.IdentifiedType; |
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import org.apache.camel.model.RouteContainer; |
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import org.apache.camel.model.RouteType; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.springframework.beans.factory.DisposableBean; |
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import org.springframework.beans.factory.FactoryBean; |
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import org.springframework.beans.factory.InitializingBean; |
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import org.springframework.context.ApplicationContext; |
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import org.springframework.context.ApplicationContextAware; |
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import org.springframework.context.ApplicationEvent; |
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import org.springframework.context.ApplicationListener; |
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import org.springframework.context.event.ContextRefreshedEvent; |
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@XmlRootElement(name = "camelContext") |
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@XmlAccessorType(XmlAccessType.FIELD) |
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public class CamelContextFactoryBean extends IdentifiedType implements RouteContainer, FactoryBean, InitializingBean, DisposableBean, ApplicationContextAware, ApplicationListener { |
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private static final Log LOG = LogFactory.getLog(CamelContextFactoryBean.class); |
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@XmlElement(name = "package", required = false) |
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private String[] packages = {}; |
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@XmlElements({@XmlElement(name = "beanPostProcessor", type = CamelBeanPostProcessor.class, required = false), @XmlElement(name = "proxy", type = CamelProxyFactoryType.class, required = false), |
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@XmlElement(name = "export", type = CamelServiceExporterType.class, required = false) }) |
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private List beans; |
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@XmlElement(name = "endpoint", required = false) |
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private List<EndpointFactoryBean> endpoints; |
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@XmlElement(name = "route", required = false) |
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private List<RouteType> routes = new ArrayList<RouteType>(); |
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@XmlTransient |
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private SpringCamelContext context; |
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@XmlTransient |
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private RouteBuilder routeBuilder; |
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@XmlTransient |
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private List<RouteBuilder> additionalBuilders = new ArrayList<RouteBuilder>(); |
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@XmlTransient |
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private ApplicationContext applicationContext; |
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public Object getObject() throws Exception { |
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return getContext(); |
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} |
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public Class getObjectType() { |
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return SpringCamelContext.class; |
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} |
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public boolean isSingleton() { |
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return true; |
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} |
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public void afterPropertiesSet() throws Exception { |
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getContext(); |
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LOG.debug("Found JAXB created routes: " + getRoutes()); |
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String[] names = applicationContext.getBeanNamesForType(SpringInstrumentationAgent.class); |
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if (names.length == 1) { |
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applicationContext.getBean(names[0], SpringInstrumentationAgent.class); |
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} |
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findRouteBuiders(); |
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installRoutes(); |
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} |
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public void destroy() throws Exception { |
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getContext().stop(); |
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} |
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public void onApplicationEvent(ApplicationEvent event) { |
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if (LOG.isDebugEnabled()) { |
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LOG.debug("Publishing event: " + event); |
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} |
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if (event instanceof ContextRefreshedEvent) { |
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try { |
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LOG.debug("Starting the context now!"); |
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getContext().start(); |
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} catch (Exception e) { |
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throw new RuntimeCamelException(e); |
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} |
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} |
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} |
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public SpringCamelContext getContext() throws Exception { |
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if (context == null) { |
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context = new SpringCamelContext(getApplicationContext()); |
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} |
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return context; |
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} |
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public void setContext(SpringCamelContext context) { |
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this.context = context; |
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} |
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public List<RouteType> getRoutes() { |
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return routes; |
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} |
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public void setRoutes(List<RouteType> routes) { |
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this.routes = routes; |
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} |
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public RouteBuilder getRouteBuilder() { |
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return routeBuilder; |
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} |
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public void setRouteBuilder(RouteBuilder routeBuilder) { |
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this.routeBuilder = routeBuilder; |
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} |
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public void setRouteBuilders(RouteBuilder[] builders) { |
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for (RouteBuilder builder : builders) { |
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additionalBuilders.add(builder); |
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} |
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} |
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public ApplicationContext getApplicationContext() { |
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return applicationContext; |
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} |
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public void setApplicationContext(ApplicationContext applicationContext) { |
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this.applicationContext = applicationContext; |
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} |
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public String[] getPackages() { |
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return packages; |
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} |
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public void setPackages(String[] packages) { |
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this.packages = packages; |
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} |
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protected void installRoutes() throws Exception { |
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for (RouteBuilder routeBuilder : additionalBuilders) { |
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getContext().addRoutes(routeBuilder); |
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} |
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if (routeBuilder != null) { |
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getContext().addRoutes(routeBuilder); |
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} |
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for (RouteType route : routes) { |
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route.addRoutes(getContext()); |
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} |
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} |
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protected void findRouteBuiders() throws Exception, InstantiationException { |
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if (packages != null && packages.length > 0) { |
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RouteBuilderFinder finder = new RouteBuilderFinder(getContext(), packages); |
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finder.appendBuilders(additionalBuilders); |
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} |
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} |
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} |