I'm trying to send a message to an async route but it's not working.
I have just created a projeto on github to simulate the problem
#SpringBootApplication
public class SedaQueueApplication implements CommandLineRunner {
#Autowired
#EndpointInject(uri = "direct://direct-queue")
ProducerTemplate producerTemplate;
public static void main(String[] args) {
SpringApplication.run(SedaQueueApplication.class, args);
}
#Override
public void run(String... strings) throws Exception {
producerTemplate.sendBody("Teste Direct - Async");
}
#Component
class Router extends RouteBuilder {
#Override
public void configure() throws Exception {
from("direct://direct-queue").routeId("toAsync").to("seda://async-queue?size=100");
from("seda://async-queue").routeId("toLog").log("${body}");
}
}
you have two routes. In one of the route you have specified seda://async-queue and in other seda://async-queue?size=100 make this consistent i.e. add size attribute to first route or remove from second. It will work like a peach.
The reason for this is (Not sure if it is a bug in camel code), In SedaComponent::getOrCreateQueue they are comparing for size attribute also. Hence you get an exception if the size attribute if present and doeśn't match.
Hope that helps.
Related
I have multiple route builders within my project,
I want to define a single interceptSendToEndpoint that will affect all of the defined routes
For Example:
Public Route1 extends RouteBuilder {
public void configure() throws Exception {
from("direct:endpoint1").toD("http:\\someAddress1");
}
}
Public Route2 extends RouteBuilder {
public void configure() throws Exception {
from("direct:endpoint2").toD("http:\\someAddress2");
}
}
what I want to do here is to define a central interceptSendToEndpoint that will automatically capture all traffic sent to the camel HTTP component for all routes.
public class InterceptRoute extends RouteBuilder {
#Override
public void configure() throws Exception {
interceptSendToEndpoint("http:*")
.process(exchange -> System.out.println("Hi from intercept"));
}
}
However due to how camel injects the intercept scope, I'm unable to do this easily,
Is there a way to tell the camel context that this intercept is for all defined routes within the context?
Note: I'm using camel 3.0.0
Camel team works for similar task in there (https://issues.apache.org/jira/projects/CAMEL/issues/CAMEL-16757?filter=allissues&orderby=cf%5B12310200%5D+ASC%2C+priority+DESC%2C+updated+DESC).
Create an abstract base class and define your in there and then extends it in main route
public abstract class BaseRoute extends RouteBuilder {
#Override
public void configure() throws Exception {
interceptSendToEndpoint("http:*")
.process(exchange -> System.out.println("Hi from intercept"));
}
}
public class TaskRoute2 extends BaseRoute {
#Override
public void configure() throws Exception {
super.configure();
from("direct:endpoint2").toD("http:\\someAddress2");
}
}
public class TaskRoute2 extends BaseRoute {
#Override
public void configure() throws Exception {
super.configure();
from("direct:endpoint2").toD("http:\\someAddress2");
}
}
I have a spring boot application with camel and I try to move a file from a server using FTP to my local machine, my problem is that the file is empty after move it,
This is my class that extends the RouteBuilder class:
public class Controlador extends RouteBuilder{
#Autowired
private ArchivoBS archivoBS;
#Override
public void configure() throws Exception {
from("ftp://user#host:21?password=pass&passiveMode=true&delete=true").convertBodyTo(InputStream.class).process(archivoBS).to("file:C:\\Users\\juan.gaytan\\Desktop\\prueba2");
}
}
My class ArchivoBS implements the Processor interface:
#Service
public class ArchivoBS implements Processor{
#Override
public void process(Exchange exchange) {
InputStream fis = exchange.getIn().getBody(InputStream.class);
BufferedReader br = new BufferedReader(new InputStreamReader(fis));
String strLinea;
while ((strLinea = br.readLine()) != null) {
}
}
}
Can someone help me to solve my issue?,
Thanks in advance.
Thanks to #ClausIbsen that provided this link http://camel.apache.org/why-is-my-message-body-empty.html, I changed configure method and now looks like this:
#Override
public void configure() throws Exception {
from("ftp://user#host:21?password=pass&passiveMode=true&delete=true").streamCaching().convertBodyTo(InputStream.class).process(archivoBS).to("file:C:\\Users\\juan.gaytan\\Desktop\\prueba2");
}
I only needed to add the .streamCaching() method and it worked perfectly, hope this help someone else.
Im currently working with Camel's mock component and i would like to test it on an existing routes. Basically i want to retain the existing routes defined in the app, but inject a few mocks during test, to verify or at least peek on the current exchange contents.
Based on the docs and from the Apache Camel Cookbook. I've tried to use #MockEndpoints
Here's the route builder
#Component
public class MockedRouteStub extends RouteBuilder {
private static final Logger LOGGER = LoggerFactory.getLogger(MockedRouteStub.class);
#Override
public void configure() throws Exception {
from("direct:stub")
.choice()
.when().simple("${body} contains 'Camel'")
.setHeader("verified").constant(true)
.to("direct:foo")
.otherwise()
.to("direct:bar")
.end();
from("direct:foo")
.process(e -> LOGGER.info("foo {}", e.getIn().getBody()));
from("direct:bar")
.process(e -> LOGGER.info("bar {}", e.getIn().getBody()));
}
}
Here's my test (currently its a springboot project):
#RunWith(SpringRunner.class)
#SpringBootTest
#MockEndpoints
public class MockedRouteStubTest {
#Autowired
private ProducerTemplate producerTemplate;
#EndpointInject(uri = "mock:direct:foo")
private MockEndpoint mockCamel;
#Test
public void test() throws InterruptedException {
String body = "Camel";
mockCamel.expectedMessageCount(1);
producerTemplate.sendBody("direct:stub", body);
mockCamel.assertIsSatisfied();
}
}
message count is 0 and it looks more like #MockEndpoints is not triggered.
Also, logs indicate that the log is triggered
route.MockedRouteStub : foo Camel
An alternative i've tried is to use an advice:
...
#Autowired
private CamelContext context;
#Before
public void setup() throws Exception {
context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() {
#Override
public void configure() throws Exception {
mockEndpoints();
}
});
}
The startup logs indicate that advice is in place:
c.i.InterceptSendToMockEndpointStrategy : Adviced endpoint [direct://stub] with mock endpoint [mock:direct:stub]
But still my test fails with the message count = 0.
Posting the answer which worked for the setup that i have.
Without any changes to the RouteBuilder, the Test would look something like this:
#RunWith(CamelSpringBootRunner.class)
#SpringBootTest
#MockEndpoints
public class MockedRouteStubTest {
#Autowired
private ProducerTemplate producerTemplate;
#EndpointInject(uri = "mock:direct:foo")
private MockEndpoint mockCamel;
#Test
public void test() throws InterruptedException {
String body = "Camel";
mockCamel.expectedMessageCount(1);
producerTemplate.sendBody("direct:stub", body);
mockCamel.assertIsSatisfied();
}
}
I have a Spring Boot (v1.3.6) single page application (angular2) and i want to forward all request to the index.html.
A request to http://localhost:8080/index.html is working (200 and i get the index.html) but http://localhost:8080/home is not (404).
Runner.class
#SpringBootApplication
#ComponentScan({"packagea.packageb"})
#EnableAutoConfiguration
public class Runner {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext run = SpringApplication.run(Runner.class, args);
}
}
WebAppConfig.class
#Configuration
#EnableScheduling
#EnableAsync
public class WebAppConfig extends WebMvcConfigurationSupport {
private static final int CACHE_PERIOD_ONE_YEAR = 31536000;
private static final int CACHE_PERIOD_NO_CACHE = 0;
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.setOrder(-1);
registry.addResourceHandler("/styles.css").addResourceLocations("/styles.css").setCachePeriod(CACHE_PERIOD_ONE_YEAR);
registry.addResourceHandler("/app/third-party/**").addResourceLocations("/node_modules/").setCachePeriod(CACHE_PERIOD_ONE_YEAR);
registry.addResourceHandler("/app/**").addResourceLocations("/app/").setCachePeriod(CACHE_PERIOD_NO_CACHE);
registry.addResourceHandler("/systemjs.config.js").addResourceLocations("/systemjs.config.js").setCachePeriod(CACHE_PERIOD_NO_CACHE);
registry.addResourceHandler("/**").addResourceLocations("/index.html").setCachePeriod(CACHE_PERIOD_NO_CACHE);
}
}
styles.css, /app/third-party/xyz/xyz.js,.. are working (200 and i get the correct file). Only /** to index.html is not working.
You can also add a forwarding controller like:
#Controller
public class ForwardingController {
#RequestMapping("/{path:[^\\.]+}/**")
public String forward() {
return "forward:/";
}
}
The first part {path:[^\\.]+} matches one or more of any character other than .. This makes sure request for a file.ext doesn't get handled by this RequestMapping. If you need to support sub-paths to also be forwarded, put /** outside of the {...}.
This one didn't work for me:
return "forward:/";
Thanks to Spring MVC #RestController and redirect I found a nicely working solution:
#RequestMapping(value = "/{[path:[^\\.]*}")
public void redirect(HttpServletResponse response) throws IOException {
response.sendRedirect("/");
}
Without looking at logs I'm not entirely sure why its not being mapped correctly, however if you want to map URLs to a view (HTML) then you will probably be better off using the viewController mechanism spring provides http://docs.spring.io/spring/docs/3.2.x/spring-framework-reference/html/mvc.html#mvc-config-view-controller. e.g.
#Configuration
#EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("home");
}
}
(taken from spring docs linked above - this is how you should map a url to a view rather than re-purposing the mapping for static resources.)
I'm not sure if there is any kind of suffix filtering for the resource mapping - e.g. I don't know how spring decides to map requests to the ResourceHttpRequestHandler - have you tried (just to confirm or deny) whether something like http://localhost:8080/home.html amps to anything?
It's also possible that the html mapping you have defined above is just being ignored and the index.html is just working because of Spring-Boot's default home page behaviour: https://github.com/spring-projects/spring-boot/blob/master/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ResourceProperties.java#L108
I had the same problem and the following worked for me. My html files are inside src/main/resources/static/app
The key was to remove #EnableWebMvc and add "classpath:/static/app/" to addResourceLocations! Hope this helps.
private static final String[] CLASSPATH_RESOURCE_LOCATIONS = {
"classpath:/META-INF/resources/", "classpath:/resources/",
"classpath:/static/","classpath:/static/app/", "classpath:/public/" };
#Bean
public WebMvcConfigurer webMvcConfigurer() {
return new WebMvcConfigurerAdapter() {
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
if (!registry.hasMappingForPattern("/webjars/**")) {
registry.addResourceHandler("/webjars/**").addResourceLocations(
"classpath:/META-INF/resources/webjars/");
}
if (!registry.hasMappingForPattern("/**")) {
registry.addResourceHandler("/**").addResourceLocations(
CLASSPATH_RESOURCE_LOCATIONS);
}
}
#Override
public void addViewControllers(ViewControllerRegistry registry) {
// forward requests to /admin and /user to their index.html
registry.addViewController("/portal").setViewName(
"forward:/app/index.html");
}
};
}
I have defined a service in Spring
#Service("StockageService")
public class StockageServiceImpl implements StockageService{
}
with
public interface StockageService extends Serializable {
}
And I need in a servlet to invoke this service
So I wrote
public class SpringApplicationContextListener implements ServletContextListener {
#Override
public void contextInitialized(ServletContextEvent sce) {
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
sce.getServletContext().setAttribute("applicationContext", ac);
}
public void contextDestroyed(ServletContextEvent sce) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
And
public class handler extends HttpServlet {
private String message;
private StockageService stockageService;
#Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
ApplicationContext ac = (ApplicationContext) config.getServletContext().getAttribute("applicationContext");
this.stockageService = (StockageService)ac.getBean("StockageService");
}
The problem is that I get a NPE at the last mentionned line
(StockageService)ac.getBean("StockageService");
Where could I have made a mistake ?
First, thanks ankur-singhal for having taken the time to answer my question
I understand the reasonnement of your answer but it does not work when I invoke
ApplicationContextUtils. getApplicationContext().getBean("StockageService");
So I used a trick which works but I do not understand very well
I override the init in my servlet as it follows
#Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
SpringBeanAutowiringSupport.processInjectionBasedOnServletContext(this,
config.getServletContext());
}
and I have to put a
#Autowired
private StockageService stockageService;
in the servlet and it works
It seems that ApplicationContext itself is comming as null.
Look at below code and try make use of this.
ApplicationContextUtils.java
We will create the following utility class, it implements ApplicationContextAware and provides the setApplicationContext which will be invoked by spring container and the applicationContext will be passed by it. We store it in a static variable and expose it through a get method so that it can be accessed all through the application.
You can set the same while creating ApplicationContext
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class ApplicationContextUtils implements ApplicationContextAware {
private static ApplicationContext ctx;
#Override
public void setApplicationContext(ApplicationContext appContext)
throws BeansException {
ctx = appContext;
}
public static ApplicationContext getApplicationContext() {
return ctx;
}
}