/**
* 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.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.Callable;
import javax.naming.Context;
import org.apache.camel.CamelContext;
import org.apache.camel.Component;
import org.apache.camel.ConsumerTemplate;
import org.apache.camel.Endpoint;
import org.apache.camel.IsSingleton;
import org.apache.camel.NoFactoryAvailableException;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.ResolveEndpointFailedException;
import org.apache.camel.Route;
import org.apache.camel.RoutesBuilder;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.Service;
import org.apache.camel.ServiceStatus;
import org.apache.camel.TypeConverter;
import org.apache.camel.builder.ErrorHandlerBuilder;
import org.apache.camel.impl.converter.DefaultTypeConverter;
import org.apache.camel.management.InstrumentationLifecycleStrategy;
import org.apache.camel.management.JmxSystemPropertyKeys;
import org.apache.camel.model.DataFormatDefinition;
import org.apache.camel.model.RouteDefinition;
import org.apache.camel.processor.interceptor.Delayer;
import org.apache.camel.processor.interceptor.HandleFault;
import org.apache.camel.processor.interceptor.StreamCaching;
import org.apache.camel.processor.interceptor.Tracer;
import org.apache.camel.spi.ClassResolver;
import org.apache.camel.spi.ComponentResolver;
import org.apache.camel.spi.EndpointStrategy;
import org.apache.camel.spi.FactoryFinder;
import org.apache.camel.spi.FactoryFinderResolver;
import org.apache.camel.spi.Injector;
import org.apache.camel.spi.InterceptStrategy;
import org.apache.camel.spi.Language;
import org.apache.camel.spi.LanguageResolver;
import org.apache.camel.spi.LifecycleStrategy;
import org.apache.camel.spi.NodeIdFactory;
import org.apache.camel.spi.PackageScanClassResolver;
import org.apache.camel.spi.Registry;
import org.apache.camel.spi.RouteContext;
import org.apache.camel.spi.ServicePool;
import org.apache.camel.spi.TypeConverterRegistry;
import org.apache.camel.util.LRUCache;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.util.ReflectionInjector;
import org.apache.camel.util.URISupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import static org.apache.camel.util.ServiceHelper.startServices;
import static org.apache.camel.util.ServiceHelper.stopServices;
/**
* Represents the context used to configure routes and the policies to use.
*
* @version $Revision: 800180 $
*/
public class DefaultCamelContext extends ServiceSupport implements CamelContext {
private static final transient Log LOG = LogFactory.getLog(DefaultCamelContext.class);
private static final String NAME_PREFIX = "camel-";
private static int nameSuffix;
private boolean routeDefinitionInitiated;
private String name;
private final Map<String, Endpoint> endpoints = new LRUCache<String, Endpoint>(1000);
private final List<EndpointStrategy> endpointStrategies = new ArrayList<EndpointStrategy>();
private final Map<String, Component> components = new HashMap<String, Component>();
private List<Route> routes;
private final List<Service> servicesToClose = new ArrayList<Service>();
private TypeConverter typeConverter;
private TypeConverterRegistry typeConverterRegistry;
private Injector injector;
private ComponentResolver componentResolver;
private boolean autoCreateComponents = true;
private LanguageResolver languageResolver = new DefaultLanguageResolver();
private final Map<String, Language> languages = new HashMap<String, Language>();
private Registry registry;
private LifecycleStrategy lifecycleStrategy;
private final List<RouteDefinition> routeDefinitions = new ArrayList<RouteDefinition>();
private List<InterceptStrategy> interceptStrategies = new ArrayList<InterceptStrategy>();
private Boolean trace = Boolean.FALSE;
private Boolean streamCache = Boolean.FALSE;
private Boolean handleFault = Boolean.FALSE;
private Long delay;
private ErrorHandlerBuilder errorHandlerBuilder;
private Map<String, DataFormatDefinition> dataFormats = new HashMap<String, DataFormatDefinition>();
private Map<String, String> properties = new HashMap<String, String>();
private FactoryFinderResolver factoryFinderResolver = new DefaultFactoryFinderResolver();
private FactoryFinder defaultFactoryFinder;
private final Map<String, FactoryFinder> factories = new HashMap<String, FactoryFinder>();
private final Map<String, RouteService> routeServices = new HashMap<String, RouteService>();
private ClassResolver classResolver = new DefaultClassResolver();
private PackageScanClassResolver packageScanClassResolver;
// we use a capacity of 100 per endpoint, so for the same endpoint we have at most 100 producers in the pool
// so if we have 6 endpoints in the pool, we have 6 x 100 producers in total
private ServicePool<Endpoint, Producer> producerServicePool = new DefaultProducerServicePool(100);
private NodeIdFactory nodeIdFactory = new DefaultNodeIdFactory();
public DefaultCamelContext() {
super();
name = NAME_PREFIX + ++nameSuffix;
if (Boolean.getBoolean(JmxSystemPropertyKeys.DISABLED)) {
LOG.info("JMX is disabled. Using DefaultLifecycleStrategy.");
lifecycleStrategy = new DefaultLifecycleStrategy();
} else {
try {
LOG.info("JMX enabled. Using InstrumentationLifecycleStrategy.");
lifecycleStrategy = new InstrumentationLifecycleStrategy();
} catch (NoClassDefFoundError e) {
// if we can't instantiate the JMX enabled strategy then fallback to default
// could be because of missing .jars on the classpath
LOG.warn("Could not find needed classes for JMX lifecycle strategy."
+ " Needed class is in spring-context.jar using Spring 2.5 or newer ("
+ " spring-jmx.jar using Spring 2.0.x)."
+ " NoClassDefFoundError: " + e.getMessage());
} catch (Exception e) {
LOG.warn("Could not create JMX lifecycle strategy, caused by: " + e.getMessage());
}
// if not created then fallback to default
if (lifecycleStrategy == null) {
LOG.warn("Cannot use JMX lifecycle strategy. Using DefaultLifecycleStrategy instead.");
lifecycleStrategy = new DefaultLifecycleStrategy();
}
}
// use WebSphere specific resolver if running on WebSphere
if (WebSpherePacakageScanClassResolver.isWebSphereClassLoader(this.getClass().getClassLoader())) {
LOG.info("Using WebSphere specific PackageScanClassResolver");
packageScanClassResolver = new WebSpherePacakageScanClassResolver("META-INF/services/org/apache/camel/TypeConverter");
} else {
packageScanClassResolver = new DefaultPackageScanClassResolver();
}
}
/**
* Creates the {@link CamelContext} using the given JNDI context as the
* registry
*/
public DefaultCamelContext(Context jndiContext) {
this();
setJndiContext(jndiContext);
}
/**
* Creates the {@link CamelContext} using the given registry
*/
public DefaultCamelContext(Registry registry) {
this();
this.registry = registry;
}
public String getName() {
return name;
}
/**
* Sets the name of the this context.
*/
public void setName(String name) {
this.name = name;
}
public void addComponent(String componentName, final Component component) {
ObjectHelper.notNull(component, "component");
synchronized (components) {
if (components.containsKey(componentName)) {
throw new IllegalArgumentException("Cannot add component as its already previously added: " + componentName);
}
component.setCamelContext(this);
components.put(componentName, component);
}
}
public Component getComponent(String name) {
// synchronize the look up and auto create so that 2 threads can't
// concurrently auto create the same component.
synchronized (components) {
Component component = components.get(name);
if (component == null && autoCreateComponents) {
try {
component = getComponentResolver().resolveComponent(name, this);
if (component != null) {
addComponent(name, component);
if (isStarted() || isStarting()) {
// If the component is looked up after the context is started,
// lets start it up.
startServices(component);
}
}
} catch (Exception e) {
throw new RuntimeCamelException("Could not auto create component: " + name, e);
}
}
return component;
}
}
public <T extends Component> T getComponent(String name, Class<T> componentType) {
Component component = getComponent(name);
if (componentType.isInstance(component)) {
return componentType.cast(component);
} else {
throw new IllegalArgumentException("The component is not of type: " + componentType + " but is: "
+ component);
}
}
public Component removeComponent(String componentName) {
synchronized (components) {
return components.remove(componentName);
}
}
public Component getOrCreateComponent(String componentName, Callable<Component> factory) {
synchronized (components) {
Component component = components.get(componentName);
if (component == null) {
try {
component = factory.call();
if (component == null) {
throw new RuntimeCamelException("Factory failed to create the " + componentName
+ " component, it returned null.");
}
components.put(componentName, component);
component.setCamelContext(this);
} catch (Exception e) {
throw new RuntimeCamelException("Factory failed to create the " + componentName
+ " component", e);
}
}
return component;
}
}
// Endpoint Management Methods
// -----------------------------------------------------------------------
public Collection<Endpoint> getEndpoints() {
synchronized (endpoints) {
return new ArrayList<Endpoint>(endpoints.values());
}
}
public Map<String, Endpoint> getEndpointMap() {
synchronized (endpoints) {
return new TreeMap<String, Endpoint>(endpoints);
}
}
public Endpoint hasEndpoint(String uri) {
// normalize uri so we can do endpoint hits with minor mistakes and parameters is not in the same order
try {
uri = URISupport.normalizeUri(uri);
} catch (Exception e) {
throw new ResolveEndpointFailedException(uri, e);
}
synchronized (endpoints) {
return endpoints.get(uri);
}
}
public Collection<Endpoint> getEndpoints(String uri) {
Collection<Endpoint> answer = new ArrayList<Endpoint>();
Collection<Endpoint> coll;
synchronized (endpoints) {
Endpoint ep = endpoints.get(uri);
if (ep != null) {
answer.add(ep);
return answer;
}
coll = new ArrayList<Endpoint>(endpoints.values());
}
for (Endpoint ep : coll) {
if (!ep.isSingleton() && uri.equals(ep.getEndpointUri())) {
answer.add(ep);
}
}
return answer;
}
public Collection<Endpoint> getSingletonEndpoints() {
Collection<Endpoint> answer = new ArrayList<Endpoint>();
Collection<Endpoint> coll = getEndpoints();
for (Endpoint ep : coll) {
if (ep.isSingleton()) {
answer.add(ep);
}
}
return answer;
}
public Endpoint addEndpoint(String uri, Endpoint endpoint) throws Exception {
Endpoint oldEndpoint;
synchronized (endpoints) {
startServices(endpoint);
oldEndpoint = endpoints.remove(uri);
addEndpointToRegistry(uri, endpoint);
if (oldEndpoint != null) {
stopServices(oldEndpoint);
}
}
return oldEndpoint;
}
public Collection<Endpoint> removeEndpoints(String uri) throws Exception {
Collection<Endpoint> answer = new ArrayList<Endpoint>();
synchronized (endpoints) {
Endpoint oldEndpoint = endpoints.remove(uri);
if (oldEndpoint != null) {
answer.add(oldEndpoint);
stopServices(oldEndpoint);
} else {
for (Map.Entry entry : endpoints.entrySet()) {
oldEndpoint = (Endpoint) entry.getValue();
if (!oldEndpoint.isSingleton() && uri.equals(oldEndpoint.getEndpointUri())) {
answer.add(oldEndpoint);
stopServices(oldEndpoint);
endpoints.remove(entry.getKey());
}
}
}
}
return answer;
}
public Endpoint addSingletonEndpoint(String uri, Endpoint endpoint) throws Exception {
return addEndpoint(uri, endpoint);
}
public Endpoint removeSingletonEndpoint(String uri) throws Exception {
Collection<Endpoint> answer = removeEndpoints(uri);
return (Endpoint) (answer.size() > 0 ? answer.toArray()[0] : null);
}
public Endpoint getEndpoint(String uri) {
ObjectHelper.notEmpty(uri, "uri");
// normalize uri so we can do endpoint hits with minor mistakes and parameters is not in the same order
try {
uri = URISupport.normalizeUri(uri);
} catch (Exception e) {
throw new ResolveEndpointFailedException(uri, e);
}
if (LOG.isTraceEnabled()) {
LOG.trace("Getting endpoint with uri: " + uri);
}
Endpoint answer;
String scheme = null;
synchronized (endpoints) {
answer = endpoints.get(uri);
if (answer == null) {
try {
// Use the URI prefix to find the component.
String splitURI[] = ObjectHelper.splitOnCharacter(uri, ":", 2);
if (splitURI[1] != null) {
scheme = splitURI[0];
Component component = getComponent(scheme);
// Ask the component to resolve the endpoint.
if (component != null) {
// Have the component create the endpoint if it can.
answer = component.createEndpoint(uri);
if (answer != null && LOG.isDebugEnabled()) {
LOG.debug(uri + " converted to endpoint: " + answer + " by component: " + component);
}
}
}
if (answer == null) {
// no component then try in registry and elsewhere
answer = createEndpoint(uri);
}
if (answer != null) {
addService(answer);
Endpoint newAnswer = addEndpointToRegistry(uri, answer);
lifecycleStrategy.onEndpointAdd(answer);
answer = newAnswer;
}
} catch (Exception e) {
throw new ResolveEndpointFailedException(uri, e);
}
}
}
// unknown scheme
if (answer == null && scheme != null) {
throw new ResolveEndpointFailedException(uri, "No component found with scheme: " + scheme);
}
return answer;
}
public <T extends Endpoint> T getEndpoint(String name, Class<T> endpointType) {
Endpoint endpoint = getEndpoint(name);
if (endpoint instanceof InterceptSendToEndpoint) {
endpoint = ((InterceptSendToEndpoint) endpoint).getDelegate();
}
if (endpointType.isInstance(endpoint)) {
return endpointType.cast(endpoint);
} else {
throw new IllegalArgumentException("The endpoint is not of type: " + endpointType + " but is: "
+ endpoint.getClass().getCanonicalName());
}
}
public void addRegisterEndpointCallback(EndpointStrategy strategy) {
if (!endpointStrategies.contains(strategy)) {
// let it be invoked for already registered endpoints so it can catch-up.
endpointStrategies.add(strategy);
for (Endpoint endpoint : getEndpoints()) {
Endpoint newEndpoint = strategy.registerEndpoint(endpoint.getEndpointUri(), endpoint);
if (newEndpoint != endpoint) {
endpoints.put(getEndpointKey(newEndpoint.getEndpointUri(), newEndpoint), newEndpoint);
}
}
}
}
/**
* Strategy to add the given endpoint to the internal endpoint registry
*
* @param uri uri of endpoint
* @param endpoint the endpoint to add
* @return the added endpoint
*/
protected Endpoint addEndpointToRegistry(String uri, Endpoint endpoint) {
for (EndpointStrategy strategy : endpointStrategies) {
endpoint = strategy.registerEndpoint(uri, endpoint);
}
endpoints.put(getEndpointKey(uri, endpoint), endpoint);
return endpoint;
}
// Route Management Methods
// -----------------------------------------------------------------------
public synchronized List<Route> getRoutes() {
if (routes == null) {
routes = new ArrayList<Route>();
}
// lets return a copy of the collection as objects are removed later
// when services are stopped
return new ArrayList<Route>(routes);
}
public void setRoutes(List<Route> routes) {
this.routes = routes;
throw new UnsupportedOperationException("Overriding existing routes is not supported yet, use addRoutes instead");
}
synchronized void removeRouteCollection(Collection<Route> routes) {
if (this.routes != null) {
this.routes.removeAll(routes);
}
}
synchronized void addRouteCollection(Collection<Route> routes) throws Exception {
if (this.routes == null) {
this.routes = new ArrayList<Route>();
}
if (routes != null) {
this.routes.addAll(routes);
}
}
public void addRoutes(RoutesBuilder builder) throws Exception {
if (LOG.isDebugEnabled()) {
LOG.debug("Adding routes from builder: " + builder);
}
// lets now add the routes from the builder
builder.addRoutesToCamelContext(this);
}
public void addRouteDefinitions(Collection<RouteDefinition> routeDefinitions) throws Exception {
for (RouteDefinition routeDefinition : routeDefinitions) {
routeDefinition.setCamelContext(this);
removeRouteDefinition(routeDefinition);
}
this.routeDefinitions.addAll(routeDefinitions);
if (shouldStartRoutes()) {
startRouteDefinitions(routeDefinitions);
}
}
/**
* Removes the route definition with the given key.
*
* @return true if one or more routes was removed
*/
public boolean removeRouteDefinition(String key) {
boolean answer = false;
Iterator<RouteDefinition> iter = routeDefinitions.iterator();
while (iter.hasNext()) {
RouteDefinition route = iter.next();
if (route.idOrCreate(nodeIdFactory).equals(key)) {
iter.remove();
answer = true;
}
}
return answer;
}
public void removeRouteDefinitions(Collection<RouteDefinition> routeDefinitions) throws Exception {
this.routeDefinitions.removeAll(routeDefinitions);
for (RouteDefinition routeDefinition : routeDefinitions) {
removeRouteDefinition(routeDefinition);
}
}
public void removeRouteDefinition(RouteDefinition routeDefinition) throws Exception {
String key = routeDefinition.idOrCreate(nodeIdFactory);
stopRoute(key);
removeRouteDefinition(key);
}
public ServiceStatus getRouteStatus(RouteDefinition route) {
return getRouteStatus(route.idOrCreate(nodeIdFactory));
}
/**
* Returns the status of the service of the given ID or null if there is no service created yet
*/
public ServiceStatus getRouteStatus(String key) {
RouteService routeService = routeServices.get(key);
if (routeService != null) {
return routeService.getStatus();
}
return null;
}
public void startRoute(RouteDefinition route) throws Exception {
Collection<Route> routes = new ArrayList<Route>();
List<RouteContext> routeContexts = route.addRoutes(this, routes);
RouteService routeService = new RouteService(this, route, routeContexts, routes);
startRouteService(routeService);
}
public void stopRoute(RouteDefinition route) throws Exception {
stopRoute(route.idOrCreate(nodeIdFactory));
}
/**
* Stops the route denoted by the given RouteType id
*/
public synchronized void stopRoute(String key) throws Exception {
RouteService routeService = routeServices.remove(key);
if (routeService != null) {
routeService.stop();
}
}
/**
* Adds a service, starting it so that it will be stopped with this context
*/
public void addService(Object object) throws Exception {
if (object instanceof Service) {
Service service = (Service) object;
getLifecycleStrategy().onServiceAdd(this, service);
service.start();
servicesToClose.add(service);
}
}
// Helper methods
// -----------------------------------------------------------------------
public Language resolveLanguage(String language) {
Language answer;
synchronized (languages) {
answer = languages.get(language);
// check if the language is singleton, if so return the shared instance
if (answer instanceof IsSingleton) {
boolean singleton = ((IsSingleton) answer).isSingleton();
if (singleton) {
return answer;
}
}
// language not known or not singleton, then use resolver
answer = getLanguageResolver().resolveLanguage(language, this);
if (answer != null) {
languages.put(language, answer);
}
}
// no language resolved
return answer;
}
// Properties
// -----------------------------------------------------------------------
public TypeConverter getTypeConverter() {
if (typeConverter == null) {
typeConverter = createTypeConverter();
}
return typeConverter;
}
public void setTypeConverter(TypeConverter typeConverter) {
this.typeConverter = typeConverter;
}
public TypeConverterRegistry getTypeConverterRegistry() {
if (typeConverterRegistry == null) {
// init type converter as its lazy
if (typeConverter == null) {
getTypeConverter();
}
// type converter is usually the default one that also is the registry
if (typeConverter instanceof DefaultTypeConverter) {
typeConverterRegistry = (DefaultTypeConverter) typeConverter;
}
}
return typeConverterRegistry;
}
public void setTypeConverterRegistry(TypeConverterRegistry typeConverterRegistry) {
this.typeConverterRegistry = typeConverterRegistry;
}
public Injector getInjector() {
if (injector == null) {
injector = createInjector();
}
return injector;
}
public void setInjector(Injector injector) {
this.injector = injector;
}
public ComponentResolver getComponentResolver() {
if (componentResolver == null) {
componentResolver = createComponentResolver();
}
return componentResolver;
}
public void setComponentResolver(ComponentResolver componentResolver) {
this.componentResolver = componentResolver;
}
public LanguageResolver getLanguageResolver() {
return languageResolver;
}
public void setLanguageResolver(LanguageResolver languageResolver) {
this.languageResolver = languageResolver;
}
public boolean isAutoCreateComponents() {
return autoCreateComponents;
}
public void setAutoCreateComponents(boolean autoCreateComponents) {
this.autoCreateComponents = autoCreateComponents;
}
public Registry getRegistry() {
if (registry == null) {
registry = createRegistry();
}
return registry;
}
/**
* Sets the registry to the given JNDI context
*
* @param jndiContext is the JNDI context to use as the registry
* @see #setRegistry(org.apache.camel.spi.Registry)
*/
public void setJndiContext(Context jndiContext) {
setRegistry(new JndiRegistry(jndiContext));
}
public void setRegistry(Registry registry) {
this.registry = registry;
}
public LifecycleStrategy getLifecycleStrategy() {
return lifecycleStrategy;
}
public void setLifecycleStrategy(LifecycleStrategy lifecycleStrategy) {
this.lifecycleStrategy = lifecycleStrategy;
}
public List<RouteDefinition> getRouteDefinitions() {
return routeDefinitions;
}
public List<InterceptStrategy> getInterceptStrategies() {
return interceptStrategies;
}
public void setInterceptStrategies(List<InterceptStrategy> interceptStrategies) {
this.interceptStrategies = interceptStrategies;
}
public void addInterceptStrategy(InterceptStrategy interceptStrategy) {
getInterceptStrategies().add(interceptStrategy);
// for backwards compability or if user add them here instead of the setXXX methods
if (interceptStrategy instanceof Tracer) {
setTracing(true);
} else if (interceptStrategy instanceof HandleFault) {
setHandleFault(true);
} else if (interceptStrategy instanceof StreamCaching) {
setStreamCaching(true);
} else if (interceptStrategy instanceof Delayer) {
setDelayer(((Delayer)interceptStrategy).getDelay());
}
}
public void setStreamCaching(Boolean cache) {
this.streamCache = cache;
}
public boolean isStreamCaching() {
return streamCache;
}
public void setTracing(Boolean tracing) {
this.trace = tracing;
}
public boolean isTracing() {
return trace;
}
public boolean isHandleFault() {
return handleFault;
}
public void setHandleFault(Boolean handleFault) {
this.handleFault = handleFault;
}
public Long getDelayer() {
return delay;
}
public void setDelayer(long delay) {
this.delay = delay;
}
public ProducerTemplate createProducerTemplate() {
return new DefaultProducerTemplate(this);
}
public ConsumerTemplate createConsumerTemplate() {
return new DefaultConsumerTemplate(this);
}
public ErrorHandlerBuilder getErrorHandlerBuilder() {
return errorHandlerBuilder;
}
/**
* Sets the default error handler builder which is inherited by the routes
*/
public void setErrorHandlerBuilder(ErrorHandlerBuilder errorHandlerBuilder) {
this.errorHandlerBuilder = errorHandlerBuilder;
}
public void setProducerServicePool(ServicePool<Endpoint, Producer> producerServicePool) {
this.producerServicePool = producerServicePool;
}
public ServicePool<Endpoint, Producer> getProducerServicePool() {
return producerServicePool;
}
public void start() throws Exception {
super.start();
if (LOG.isDebugEnabled()) {
LOG.debug("Starting routes");
}
// the context is now considered started (i.e. isStarted() == true))
// starting routes is done after, not during context startup
synchronized (this) {
for (RouteService routeService : routeServices.values()) {
routeService.start();
}
}
if (LOG.isDebugEnabled()) {
for (int i = 0; i < getRoutes().size(); i++) {
LOG.debug("Route " + i + ": " + getRoutes().get(i));
}
LOG.debug("Started routes");
}
LOG.info("Apache Camel " + getVersion() + " (CamelContext:" + getName() + ") started");
}
// Implementation methods
// -----------------------------------------------------------------------
protected void doStart() throws Exception {
LOG.info("Apache Camel " + getVersion() + " (CamelContext:" + getName() + ") is starting");
startServices(producerServicePool);
if (isStreamCaching()) {
// only add a new stream cache if not already configured
if (StreamCaching.getStreamCaching(this) == null) {
LOG.debug("StreamCaching is enabled");
addInterceptStrategy(new StreamCaching());
}
}
if (isTracing()) {
// only add a new tracer if not already configured
if (Tracer.getTracer(this) == null) {
Tracer tracer = Tracer.createTracer(this);
LOG.debug("Tracing is enabled");
addInterceptStrategy(tracer);
}
}
if (isHandleFault()) {
// only add a new handle fault if not already configured
if (HandleFault.getHandleFault(this) == null) {
LOG.debug("HandleFault is enabled");
addInterceptStrategy(new HandleFault());
}
}
if (getDelayer() != null && getDelayer() > 0) {
// only add a new delayer if not already configured
if (Delayer.getDelayer(this) == null) {
long millis = getDelayer();
LOG.debug("Delayer is enabled with: " + millis + " ms.");
addInterceptStrategy(new Delayer(millis));
}
}
try {
lifecycleStrategy.onContextStart(this);
} catch (Exception e) {
// not all containers allow access to its MBeanServer (such as OC4j)
LOG.warn("Cannot start lifecycleStrategy: " + lifecycleStrategy + ". Cause: " + e.getMessage());
if (lifecycleStrategy instanceof InstrumentationLifecycleStrategy) {
// fallback to non JMX lifecycle to allow Camel to startup
LOG.warn("Will fallback to use default (non JMX) lifecycle strategy");
lifecycleStrategy = new DefaultLifecycleStrategy();
lifecycleStrategy.onContextStart(this);
}
}
forceLazyInitialization();
if (components != null) {
for (Component component : components.values()) {
startServices(component);
}
}
// To avoid initiating the routeDefinitions after stopping the camel context
if (!routeDefinitionInitiated) {
startRouteDefinitions(routeDefinitions);
routeDefinitionInitiated = true;
}
}
protected synchronized void doStop() throws Exception {
LOG.info("Apache Camel " + getVersion() + " (CamelContext:" + getName() + ") is stopping");
stopServices(routeServices.values());
stopServices(servicesToClose);
if (components != null) {
for (Component component : components.values()) {
stopServices(component);
}
}
servicesToClose.clear();
stopServices(producerServicePool);
LOG.info("Apache Camel " + getVersion() + " (CamelContext:" + getName() + ") stopped");
}
protected void startRouteDefinitions(Collection<RouteDefinition> list) throws Exception {
if (list != null) {
for (RouteDefinition route : list) {
startRoute(route);
}
}
}
/**
* Starts the given route service
*/
protected synchronized void startRouteService(RouteService routeService) throws Exception {
String key = routeService.getId();
stopRoute(key);
routeServices.put(key, routeService);
if (shouldStartRoutes()) {
routeService.start();
}
}
/**
* Lets force some lazy initialization to occur upfront before we start any
* components and create routes
*/
protected void forceLazyInitialization() {
getInjector();
getLanguageResolver();
getTypeConverter();
}
/**
* Lazily create a default implementation
*/
protected TypeConverter createTypeConverter() {
DefaultTypeConverter answer = new DefaultTypeConverter(packageScanClassResolver, getInjector(), getDefaultFactoryFinder());
typeConverterRegistry = answer;
return answer;
}
/**
* Lazily create a default implementation
*/
protected Injector createInjector() {
FactoryFinder finder = getDefaultFactoryFinder();
try {
return (Injector) finder.newInstance("Injector");
} catch (NoFactoryAvailableException e) {
// lets use the default
return new ReflectionInjector();
}
}
/**
* Lazily create a default implementation
*/
protected ComponentResolver createComponentResolver() {
return new DefaultComponentResolver();
}
/**
* Lazily create a default implementation
*/
protected Registry createRegistry() {
return new JndiRegistry();
}
/**
* A pluggable strategy to allow an endpoint to be created without requiring
* a component to be its factory, such as for looking up the URI inside some
* {@link Registry}
*
* @param uri the uri for the endpoint to be created
* @return the newly created endpoint or null if it could not be resolved
*/
protected Endpoint createEndpoint(String uri) {
Object value = getRegistry().lookup(uri);
if (value instanceof Endpoint) {
return (Endpoint) value;
} else if (value instanceof Processor) {
return new ProcessorEndpoint(uri, this, (Processor) value);
} else if (value != null) {
return convertBeanToEndpoint(uri, value);
}
return null;
}
/**
* Strategy method for attempting to convert the bean from a {@link Registry} to an endpoint using
* some kind of transformation or wrapper
*
* @param uri the uri for the endpoint (and name in the registry)
* @param bean the bean to be converted to an endpoint, which will be not null
* @return a new endpoint
*/
protected Endpoint convertBeanToEndpoint(String uri, Object bean) {
throw new IllegalArgumentException("uri: " + uri + " bean: " + bean
+ " could not be converted to an Endpoint");
}
/**
* Should we start newly added routes?
*/
protected boolean shouldStartRoutes() {
return isStarted() && !isStarting();
}
public void setDataFormats(Map<String, DataFormatDefinition> dataFormats) {
this.dataFormats = dataFormats;
}
public Map<String, DataFormatDefinition> getDataFormats() {
return dataFormats;
}
public Map<String, String> getProperties() {
return properties;
}
public void setProperties(Map<String, String> properties) {
this.properties = properties;
}
public FactoryFinder getDefaultFactoryFinder() {
if (defaultFactoryFinder == null) {
defaultFactoryFinder = factoryFinderResolver.resolveDefaultFactoryFinder(getClassResolver());
}
return defaultFactoryFinder;
}
public void setFactoryFinderResolver(FactoryFinderResolver resolver) {
this.factoryFinderResolver = resolver;
}
public FactoryFinder getFactoryFinder(String path) throws NoFactoryAvailableException {
synchronized (factories) {
FactoryFinder answer = factories.get(path);
if (answer == null) {
answer = factoryFinderResolver.resolveFactoryFinder(getClassResolver(), path);
factories.put(path, answer);
}
return answer;
}
}
public ClassResolver getClassResolver() {
return classResolver;
}
public void setClassResolver(ClassResolver classResolver) {
this.classResolver = classResolver;
}
public PackageScanClassResolver getPackageScanClassResolver() {
return packageScanClassResolver;
}
public void setPackageScanClassResolver(PackageScanClassResolver packageScanClassResolver) {
this.packageScanClassResolver = packageScanClassResolver;
}
public List<String> getComponentNames() {
synchronized (components) {
List<String> answer = new ArrayList<String>();
for (String name : components.keySet()) {
answer.add(name);
}
return answer;
}
}
public List<String> getLanguageNames() {
synchronized (languages) {
List<String> answer = new ArrayList<String>();
for (String name : languages.keySet()) {
answer.add(name);
}
return answer;
}
}
public NodeIdFactory getNodeIdFactory() {
return nodeIdFactory;
}
public void setNodeIdFactory(NodeIdFactory idFactory) {
this.nodeIdFactory = idFactory;
}
protected synchronized String getEndpointKey(String uri, Endpoint endpoint) {
if (endpoint.isSingleton()) {
return uri;
} else {
// lets try find the first endpoint key which is free
for (int counter = 0; true; counter++) {
String key = (counter > 0) ? uri + ":" + counter : uri;
if (!endpoints.containsKey(key)) {
return key;
}
}
}
}
protected Map<String, RouteService> getRouteServices() {
return routeServices;
}
@Override
public String toString() {
return "CamelContext(" + getName() + ")";
}
}