I am having a helper class inside my web application which is responsible to invoke a method on a spring bean.
Below is the class definition:
package org.learning.spring.remoting;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class ClientInvoker {
public static int sum(int a, int b) {
ApplicationContext context = new ClassPathXmlApplicationContext("classpath:client-beans.xml");
Calculation calculation = (Calculation) context.getBean("calculationBean");
return calculation.add(a, b);
}
}
Inside my jsp below is the code which invokes the function on ClienInvoker
<%#page import="org.learning.spring.remoting.ClientInvoker"%>
<%
int a=Integer.parseInt(request.getParameter("number"));
int b=Integer.parseInt(request.getParameter("number"));
out.print("cube of "+ClientInvoker.sum(a, b));
%>
When I run the web application, I am getting the below exception:
org.apache.jasper.JasperException: org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [client-beans.xml]; nested exception is java.io.FileNotFoundException: class path resource [client-beans.xml] cannot be opened because it does not exist
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Basically, its not loading the client-beans.xml file which I have placed under the WEB-INF directory.
Can someone let me know where I am going wrong.
Related
I'm working on a project with Grails 3.3.7 and I'm trying to get the Spring Batch to work using the grails-spring-batch. Just like in the documentation example, I created a MySimpleJobBatchConfig.groovy file in the grails-app/batch directory with the following content :
import myapp.PrintMessageTasklet;
beans {
xmlns batch:"http://www.springframework.org/schema/batch"
batch.job(id: 'mySimpleJob') {
batch.step(id: 'logStart') {
batch.tasklet(ref: 'printMessage')
}
}
printMessage(PrintMessageTasklet) { bean ->
bean.autowire = "byName"
}
}
PrintMessageTasklet is defined as such in src/main/groovy/myapp/PrintMessageTasklet.groovy :
package myapp
import org.springframework.batch.core.StepContribution
import org.springframework.batch.core.scope.context.ChunkContext
import org.springframework.batch.core.step.tasklet.Tasklet
import org.springframework.batch.repeat.RepeatStatus
class PrintMessageTasklet implements Tasklet {
RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) {
println "Test"
return RepeatStatus.FINISHED
}
}
And here's the service that's trying to launch the job in grails-app/services/myapp/SimpleJobService :
package myapp
import grails.gorm.transactions.Transactional
import org.springframework.batch.core.JobParameters
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing
#Transactional
class SimpleJobService {
def jobLauncher;
def mySimpleJob;
def launchSimpleJob() {
jobLauncher.run(mySimpleJob, new JobParameters())
}
}
However, when I run launchSimpleJob, I get the following exception telling me that mySimpleJob is null, despite me having defined it in the MySimpleJobBatchConfig.groovy file.
java.lang.reflect.InvocationTargetException: null
at org.grails.core.DefaultGrailsControllerClass$ReflectionInvoker.invoke(DefaultGrailsControllerClass.java:211)
at org.grails.core.DefaultGrailsControllerClass.invoke(DefaultGrailsControllerClass.java:188)
at org.grails.web.mapping.mvc.UrlMappingsInfoHandlerAdapter.handle(UrlMappingsInfoHandlerAdapter.groovy:90)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:77)
at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.IllegalArgumentException: The Job must not be null.
at org.springframework.util.Assert.notNull(Assert.java:134)
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:94)
at myapp.SimpleJobService.$tt__launchSimpleJob(SimpleJobService.groovy:14)
at grails.gorm.transactions.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:94)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at grails.gorm.transactions.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:91)
at myapp.SimpleJobController.launch(SimpleJobController.groovy:9)
... 14 common frames omitted
If I try to start my job using springBatchService.launch('mySimpleJob') instead, the message in the returned map also tells me that it couldn't find the job named "mySimpleJob".
Since I'm quite new to Groovy and Spring Batch and I followed carefully the documentation of this plugin I can't find what's wrong. Does anyone knows how to fix this ?
Fixed it, the plugin documentation was outdated, turns out my BatchConfing needed to be in the src/main/resources/batch folder instead of the grails-app/batch folder.
Also had to change #Transactional to #Transactional(propagation = Propagation.NOT_SUPPORTED) in my service.
I'm following this spring-data-aerospike tutorial and setup the sample application and it is working fine.
Now I want to convert this spring boot application to spring application so I wrote the below code.
package com.aerospike.demo.simplespringbootaerospikedemo;
import com.aerospike.demo.simplespringbootaerospikedemo.configuration.AerospikeConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.data.aerospike.core.AerospikeTemplate;
public class TestSpringConfig {
public static void main(String[] args) throws IOException {
ApplicationContext ctx = new AnnotationConfigApplicationContext(AerospikeConfiguration.class);
AerospikeTemplate template = ctx.getBean(AerospikeTemplate.class);
}
}
18:33:25.430 [main] WARN org.springframework.context.annotation.AnnotationConfigApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'aerospikeTemplate' defined in com.aerospike.demo.simplespringbootaerospikedemo.configuration.AerospikeConfiguration: Unsatisfied dependency expressed through method 'aerospikeTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aerospikeClient' defined in com.aerospike.demo.simplespringbootaerospikedemo.configuration.AerospikeConfiguration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.aerospike.client.AerospikeClient]: Factory method 'aerospikeClient' threw exception; nested exception is com.aerospike.client.AerospikeException$Connection: Error -8: Failed to connect to host(s):
null 0 Error -8: java.net.ConnectException: Can't assign requested address (connect failed)
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1334)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944)
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:917)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582)
org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:93)
com.aerospike.demo.simplespringbootaerospikedemo.TestSpringConfig.main(TestSpringConfig.java:10)
So I did tweak the code liitle bit like below to set the properties into system -
import com.aerospike.demo.simplespringbootaerospikedemo.configuration.AerospikeConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.data.aerospike.core.AerospikeTemplate;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.stream.Stream;
public class TestSpringConfig {
public static void main(String[] args) throws IOException {
System.out.println(ClassLoader.getSystemResourceAsStream("application.properties").available());
Properties props = new Properties();
InputStream resourceAsStream = ClassLoader.getSystemResourceAsStream("application.properties");
if (resourceAsStream != null) {
props.load(resourceAsStream);
}
if(props != null) {
System.setProperties(props);
}
try {
ApplicationContext ctx = new AnnotationConfigApplicationContext(AerospikeConfiguration.class);
AerospikeTemplate template = ctx.getBean(AerospikeTemplate.class);
} catch (Exception e) {
StackTraceElement[] st = e.getStackTrace();
if(st != null) {
System.out.println("st.length = " + st.length);
}
Stream.of(st).forEach(System.out::println);
} catch (ExceptionInInitializerError e) {
System.out.println(e.getCause());
e.getCause().printStackTrace();
}
}
}
When I run the program with the changes above I get the below stack trace for e.getCause().printStackTrace() -
java.lang.NullPointerException
at ch.qos.logback.core.CoreConstants.<clinit>(CoreConstants.java:47)
at ch.qos.logback.classic.layout.TTLLLayout.doLayout(TTLLLayout.java:52)
at ch.qos.logback.classic.layout.TTLLLayout.doLayout(TTLLLayout.java:23)
at ch.qos.logback.core.encoder.LayoutWrappingEncoder.encode(LayoutWrappingEncoder.java:115)
at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:230)
at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:102)
at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84)
at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
at ch.qos.logback.classic.Logger.log(Logger.java:765)
at org.apache.commons.logging.LogAdapter$Slf4jLocationAwareLog.debug(LogAdapter.java:468)
at org.springframework.context.support.AbstractApplicationContext.prepareRefresh(AbstractApplicationContext.java:628)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:93)
at com.aerospike.demo.simplespringbootaerospikedemo.TestSpringConfig.main(TestSpringConfig.java:26)
I'm running out of the the available options. How to fix this error.
The code is on github here
I added line.separator=\n to the application.properties which fixed the issue
I'm working on a Spring Boot Application - and adding #RestController beans after the RequestMapping has already been initialized.
I can see the new Controller beans are in the web context, but since they were added after, there is no mapping when the application finishes starting.
I was hoping I could call "afterPropertiesSet()" on the RequestMappingHandlerMapping, but I end up with ambiguous mappings [I assume calling the method re-registers all beans with mappings]
Is there a way to register certain beans, or refresh the RequestMappingHandlerMapping?
Caused by: java.lang.IllegalStateException: Ambiguous handler methods mapped for HTTP path 'http://localhost:52765/error': {public org.springframework.http.ResponseEntity org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest), public org.springframework.http.ResponseEntity org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)}
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:367) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:314) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:61) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:352) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1160) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:940) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 26 common frames omitted
Asking another way -
I have a #RestController in a separate project that is not referenced by the configuration project.
I have a third project that references both the configuration project and the 'module' project with the #RestController.
How do I ensure the #RestController in the module project is added to the application context before the RequestMappingHandlerMapping is configured?
I created a custom annotation, thinking maybe I could use it somehow.. See the projects here -
Main platform - https://github.com/savantly-net/sprout-platform/tree/development/
Autoconfiguration project - https://github.com/savantly-net/sprout-platform/tree/development/spring/sprout-spring-boot-starter
Module Project - https://github.com/savantly-net/sprout-platform/tree/development/modules/sprout-wiki-module
Full Web Project - https://github.com/savantly-net/garden/tree/development
If you build this project, you will see the wiki module beans are added to the application context, but the #RestController is never mapped.
Any thoughts?
I changed the module declaration in the web app from a #Bean to an #Import and it resolved the issue. I'm assuming this bumped up the order of the beans in the module project.
Before -
#SpringBootApplication
public class GardenWebApplication {
public static void main(String[] args) {
SpringApplication.run(GardenWebApplication.class, args);
}
#Bean
public WikiModule wikiModule() {
return new WikiModule();
}
}
After -
#SpringBootApplication
#Import(WikiModule.class)
public class GardenWebApplication {
public static void main(String[] args) {
SpringApplication.run(GardenWebApplication.class, args);
}
}
I'm trying to get simple example of springboot and camel working but come undone. Not sure what i'm doing wrong. in the gradle build i've included so far
dependencies {
compile 'org.apache.camel:camel-spring-boot-starter:2.18.4'
compile 'org.apache.camel:camel-groovy:2.18.4'
compile 'org.apache.camel:camel-stream:2.18.4'
compile 'org.codehaus.groovy:groovy-all:2.4.11'
testCompile group: 'junit', name: 'junit', version: '4.11'
testCompile group: 'junit', name: 'junit', version: '4.12'
}
i've create a DirectRoute component like this
#Component
class DirectRoute extends RouteBuilder{
#Override
void configure () throws Exception {
from ("direct:in") //tried stream:in also
.to ("stream:out")
}
}
I then have a driver bean that try's to invoke the route
#Component
public class HelloImpl implements Hello {
#Produce(uri = "direct:in")
private ProducerTemplate template;
#Override
public String say(String value) throws ExecutionException, InterruptedException {
assert template
println "def endpoint is : " + template.getDefaultEndpoint()
return template.sendBody (template.getDefaultEndpoint(), value)
}
}
lastly in the springboot application class i added a command line runner like this, that gets my bean from the spring context, and invokes the say method. I'm using groovy so i just passed a closure to the command line runner.
#Bean
public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
//return closure to run on startup - just list the beans enabled
{args ->
println("Let's inspect the beans provided by Spring Boot:")
String[] beanNames = ctx.getBeanDefinitionNames()
Arrays.sort(beanNames)
for (String beanName : beanNames) {
println(beanName)
}
println("call the direct:start route via the service")
Hello service = ctx.getBean("helloService")
def result = service.say("William")
println "service returned : $result "
}
}
when i run my application i get all the bean names printed out (that's ok), however when i invoke the direct:in via producer template i get this error (org.apache.camel.component.direct.DirectConsumerNotAvailableException) see below.
I was expecting the route to be triggered the name sent to see that arrive in the output stream - but this is what i get.
Caused by: org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-MONSTER-PC2-58911-1496920205300-0-2]
at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1795) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.util.ExchangeHelper.extractResultBody(ExchangeHelper.java:677) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:515) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.DefaultProducerTemplate.extractResultBody(DefaultProducerTemplate.java:511) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:163) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.ProducerTemplate$sendBody$0.call(Unknown Source) ~[na:na]
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) [groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) [groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133) [groovy-all-2.4.11.jar:2.4.11]
at services.HelloImpl.say(HelloImpl.groovy:29) ~[main/:na]
at services.Hello$say.call(Unknown Source) ~[na:na]
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) [groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) [groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125) [groovy-all-2.4.11.jar:2.4.11]
at application.Application$_commandLineRunner_closure1.doCall(Application.groovy:47) ~[main/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) ~[groovy-all-2.4.11.jar:2.4.11]
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) ~[groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294) ~[groovy-all-2.4.11.jar:2.4.11]
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022) ~[groovy-all-2.4.11.jar:2.4.11]
at groovy.lang.Closure.call(Closure.java:414) ~[groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.ConvertedClosure.invokeCustom(ConvertedClosure.java:54) ~[groovy-all-2.4.11.jar:2.4.11]
at org.codehaus.groovy.runtime.ConversionHandler.invoke(ConversionHandler.java:124) ~[groovy-all-2.4.11.jar:2.4.11]
at com.sun.proxy.$Proxy44.run(Unknown Source) ~[na:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:776) [spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
... 10 common frames omitted
Caused by: org.apache.camel.component.direct.DirectConsumerNotAvailableException: No consumers available on endpoint: direct://in. Exchange[ID-MONSTER-PC2-58911-1496920205300-0-2]
at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:55) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:529) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:497) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:365) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:497) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:225) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:144) ~[camel-core-2.18.4.jar:2.18.4]
at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:161) ~[camel-core-2.18.4.jar:2.18.4]
What have i done wrong - and why does the producer template invocation on 'direct:in' (also tried stream in with same problem) not work? I thought that .to("stream:out") would be a consumer.
any pointers or advice gratefully received at this point
I have an update on my problems:
I had a subpackage with the application class annotated with #SpringBootApplication. So yes, unadorned it only scans subpackages.
you can add scanBasePackages= or scanBaseClasses= parameter, however when I tried doing a scan for single class, it seemed to scan the whole directory any way and grabbed the others as well.
I refactored the app to have a single root package with subpackages and elected to set the 'scanBasePakages to the new root package. but left the Application class in its own subpackage (personal preference only - documentation suggests leaving the Application in the root package)
you can now add other classes annotated with #Configuration to generate beans or use the basic #Component.
if you create Camel routes annotated with #Component they will be auto configured in the camelContext for you.
it appears by default that Spring isnt not starting the camelContext for you. When I checked the status of the context it shows as starting and not started. so in my commandLineRunner I had to start get the spring injected camelContext and had to start it myself, and exited it when I finished. I was slightly suprised as I thought SpringBootStarter would auto start the camelContext, but it appears not.
once you have Spring component scanning etc working and you start the camelContext, then problems with the org.apache.camel.component.direct.DirectConsumerNotAvailableException exception went away and things started to work - at least the baby examples I'm trying.
So revised structure now looks like this:
The revised ApplicationClass now looks like this with some simple println output to see the state of the context, and beans in the spring ctx. The helleoService bean is still the proxy I use to setup the producer template to call the DirectRoute.
package com.softwood.application
import groovy.util.logging.Slf4j
import org.apache.camel.CamelContext
import org.springframework.beans.factory.annotation.Autowired
import com.softwood.services.Hello
/**
* Created by willw on 07/06/2017.
*/
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean
#Slf4j //inject logger
#SpringBootApplication (scanBasePackages = ["com.softwood"]) //forces scan at parent
// same as #Configuration #EnableAutoConfiguration #ComponentScan with 'defaults' e.g. sub packages
public class Application {
#Autowired
ApplicationContext ctx
#Autowired
CamelContext camelContext
public static void main(String[] args) {
SpringApplication.run(Application.class, args)
}
#Bean
public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
//return closure to run on startup - just list the beans enabled
{args ->
println("Let's inspect the beans provided by Spring Boot:")
String[] beanNames = ctx.getBeanDefinitionNames()
Arrays.sort(beanNames)
for (String beanName : beanNames) {
println(beanName)
}
/* when component scan is working - bean routes are added
automatically to camel context via springBoot, however you do have to start
the camel context, yourself
*/
println "camelCtx has following components : " + camelContext.componentNames
println "camelCtx state is : " + camelContext.status
println "starting camel context"
camelContext.start()
println "camelCtx state now is : " + camelContext.status
//log.debug "wills logging call "
println("call the direct:start route via the service")
Hello service = ctx.getBean("helloService")
def result = service.say("William")
println "service returned : $result "
println "sleep 5 seconds "
sleep (5000)
println "stop camel context"
camelContext.stop()
println "camelCtx state now is : " + camelContext.status
}
}
}
That proxy is just registered as a simple bean like this in the spring context
package com.softwood.services
/**
* Created by willw on 07/06/2017.
*/
import org.apache.camel.Produce;
import org.apache.camel.ProducerTemplate
import org.springframework.stereotype.Component;
import java.util.concurrent.ExecutionException
#Component
public class HelloImpl implements Hello {
#Produce(uri = "direct:in") /* ?block=true */
private ProducerTemplate template
#Override
public String say(String value) throws ExecutionException, InterruptedException {
assert template
println "def endpoint is : " + template.getDefaultEndpoint()
//Future future = template.asyncSendBody(template.getDefaultEndpoint(), value)
//return future.get()
return template.sendBody (template.getDefaultEndpoint(), value)
}
}
The TimedRoute just sorts itself out with no template required to invoke in
package com.softwood.camelRoutes
/**
* Created by willw on 07/06/2017.
*/
import org.apache.camel.builder.RouteBuilder
import org.springframework.stereotype.Component
#Component
class TimedRoute extends RouteBuilder {
#Override
void configure () throws Exception {
from ("timer:foo")
.to ("log:com.softwood.application.Application?level=WARN")
}
}
My simple no-op file route isn't working (yet) and not sure why. I suspect I've not got the file config right somehow; some playing is required.
package com.softwood.camelRoutes
import org.apache.camel.builder.RouteBuilder
import org.springframework.stereotype.Component
/**
* Created by willw on 08/06/2017.
*/
#Component
class FileNoOpRoute extends RouteBuilder{
#Override
void configure () throws Exception {
from ("file:../com.softwood.file-inbox?recursive=true&noop=true&idempotent=true")
.to ("file:../com.softwood.file-outbox")
}
}
However the basics are not working and least camel is doing something whereas before I just had the exception and nothing.
I have found another question on Spring config highlighting some of the above also.
I cannot launch a webapp that embedd CODI on websphere liberty profile 8.5.5 if the webapp contains a #Stateless ejb.
I get this exception:
[ERROR ] null
java.lang.reflect.InvocationTargetException
[ERROR ] An error occured while initializing MyFaces: java.lang.reflect.InvocationTargetException
java.lang.reflect.InvocationTargetException
[ERROR ] Uncaught.init.exception.thrown.by.servlet
Faces Servlet
codiTest
javax.enterprise.context.ContextNotActiveException: WebBeans context with scope type annotation #ApplicationScoped does not exist within current thread
at org.apache.webbeans.container.BeanManagerImpl.getContext(BeanManagerImpl.java:342)
at [internal classes]
at org.apache.myfaces.extensions.cdi.core.api.config.CodiCoreConfig_$$_javassist_78.isAdvancedQualifierRequiredForDependencyInjection(CodiCoreConfig_$$_javassist_78.java)
at org.apache.myfaces.extensions.cdi.jsf.impl.listener.phase.PhaseListenerExtension.consumePhaseListeners(PhaseListenerExtension.java:110)
at org.apache.myfaces.extensions.cdi.jsf2.impl.listener.phase.CodiLifecycleFactoryWrapper.getLifecycle(CodiLifecycleFactoryWrapper.java:67)
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:119)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:322)
at [internal classes]
[ERROR ] SRVE0266E: Error occured while initializing servlets: javax.servlet.ServletException: SRVE0207E: Uncaught initialization exception created by servlet
at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:385)
at [internal classes]
Caused by: javax.enterprise.context.ContextNotActiveException: WebBeans context with scope type annotation #ApplicationScoped does not exist within current thread
at org.apache.webbeans.container.BeanManagerImpl.getContext(BeanManagerImpl.java:342)
at [internal classes]
at org.apache.myfaces.extensions.cdi.core.api.config.CodiCoreConfig_$$_javassist_78.isAdvancedQualifierRequiredForDependencyInjection(CodiCoreConfig_$$_javassist_78.java)
at org.apache.myfaces.extensions.cdi.jsf.impl.listener.phase.PhaseListenerExtension.consumePhaseListeners(PhaseListenerExtension.java:110)
at org.apache.myfaces.extensions.cdi.jsf2.impl.listener.phase.CodiLifecycleFactoryWrapper.getLifecycle(CodiLifecycleFactoryWrapper.java:67)
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:119)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:322)
... 1 more
[WARNING ] Unknown RenderKit 'HTML_BASIC'.
[WARNING ] Unknown RenderKit 'HTML_BASIC'.
[ERROR ] An exception occurred
java.lang.IllegalArgumentException: Could not find a RenderKit for "HTML_BASIC"
I've constated that the problem occurs only if an ejb is present in the project (in my case a #Stateless ejb).
In this case, the application context is initialized when the server is started and the webapp installed/deployed. No problem here.
When the first HTTP request is handled by the webapp, the FacesServlet is initialized and CodiNavigationHandler is instanciated.
The method CodiNavigationHandler.isAddViewConfigsAsNavigationCaseActivated() is called in the constructor and tries to get a reference on CODI JsfModuleConfig. This JsfModuleConfig has an #ApplicationScoped annotation and the the beanManager tries to get the application context.
This application context has already been created (when the webapp is deployed) but the LibertyContextsService.initApplicationContext(String)has not been called yet.
So the application context is null on the LibertyContextsService.applicationContexts ThreadLocal variable and the error occurs:
WebBeans context with scope type annotation #ApplicationScoped does not exist within current thread
To reproduce:
create a Dynamic Web Project
add an almost empty beans.xml under WEB-INF (just a beans element)
add an almost empty faces-config.xml under WEB-INF (just a faces-config element)
add a web.xml with a faces/index.xhtml
copy codi jars in WEB-INF/lib (http://www.apache.org/dyn/closer.cgi/myfaces/binaries/myfaces-extcdi-assembly-jsf20-1.0.5-bin.zip)
add a stateless bean:
import javax.annotation.PostConstruct;
import javax.ejb.Stateless;
#Stateless
public class MyBean {
#PostConstruct
public void postConstruct() {
System.out.println("post construct: " + this);
}
public String getTitle() {
return "test";
}
}
add a jsf bean:
import javax.inject.Inject;
import javax.inject.Named;
#Named
public class MyController {
#Inject
private MyBean myBean;
public String getTitle() {
return myBean.getTitle();
}
}
add a simple jsf web page with:
<h:body>
<h:outputText>${myController.title}</h:outputText>
</h:body>
nota: if you remove the #stateless on the ejb, the application works.
Effectively it seems to be a bug (I also post the question on IBM forums: https://www.ibm.com/developerworks/community/forums/html/topic?id=f372bbc5-5ba4-4c2a-9ef0-0bdcd76766da#09228314-2baf-4892-899e-5a8cc52daa19).
I'm going to try to find a way to create a PMR (I'm in a big company, difficult to find the right person that will grant me access to that).
So for now, I've switched to jboss.