I also created an issue for this with an example: https://issues.apache.org/jira/browse/CAMEL-17953
On Wed, Apr 13, 2022 at 9:25 AM ski n <raymondmees...@gmail.com> wrote: > Yes, based on the link Claus send: > > https://camel.apache.org/manual/route-configuration.html > > There is an example of how to do it in Java and how to add it to the > CamelContext. There is also an example of how to do it with XML: > > <routeConfiguration id="xmlError"> > <onException> > <exception>java.lang.Exception</exception> > <handled><constant>true</constant></handled> > <log message="XML WARN: ${exception.message}"/> > </onException></routeConfiguration> > > > But there is nothing about how to add this to the CamelContext. I assumed > I need to do this through the RoutesLoader (the same as a normal route). > Note I add routes as String to the RoutesLoader. However this doesn't seem > to work. > > Raymond > > > > On Tue, Apr 12, 2022 at 11:38 PM Chirag <chirag.sangh...@gmail.com> wrote: > >> Raymond, >> >> to summarise: >> You want to load route configuration using XML? >> >> ચિરાગ/चिराग/Chirag >> ------------------------------------------ >> Sent from My Gmail Account >> >> On Tue, Apr 12, 2022 at 7:59 AM ski n <raymondmees...@gmail.com> wrote: >> > >> > Loading the routeconfiguration through: >> > >> > loader.loadRoutes(resource); >> > >> > also doesn't work. Directly from Java is no problem. Is this a bug or >> > should the XML RouteConfiguration loaded differently? >> > >> > Raymond >> > >> > On Mon, Apr 11, 2022 at 10:26 PM ski n <raymondmees...@gmail.com> >> wrote: >> > >> > > As a note: >> > > >> > > When when using the routeConfiguration from Java and load it: >> > > >> > > public class MyJavaErrorHandler extends RouteConfigurationBuilder { >> > > >> > > @Override >> > > public void configuration() throws Exception { >> > > routeConfiguration("xmlError") >> > > .onException(Exception.class).handled(true) >> > > .log("Java WARN: ${exception.message}"); >> > > } >> > > } >> > > >> > > context.addRoutes(new MyJavaErrorHandler()); >> > > >> > > then it works as expected. Thus, it must be because of the way the >> > > routeconfiguration was loaded. I loaded it using: >> > > >> > > loader.updateRoutes(resource); >> > > >> > > I assumed it worked similar to the old "addOrUpdateXml" method as it >> says >> > > >> > > "Loads or updates existing RoutesBuilder". However it works >> differently >> > > (at least for RouteConfiguration). When changing the >> > > routeConfiguration to: >> > > >> > > loader.loadRoutes(resource); >> > > >> > > then it worked. >> > > >> > > Raymond >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > On Mon, Apr 11, 2022 at 9:13 PM ski n <raymondmees...@gmail.com> >> wrote: >> > > >> > >> Yes, with the try-catch-finally clause one can have more >> fine-grained. >> > >> However, I am not the one who writes the routes. I am only loading >> them. >> > >> That's why I need a more generic behavior (errorHandler) with some >> > >> configuration options (routeConfiguration). >> > >> >> > >> I assumed that the XML routeConfiguration can be loaded the same as a >> > >> 'normal' xml route. I loaded the following: >> > >> >> > >> <routeConfiguration id="xmlError"> >> > >> <onException> >> > >> <exception>java.lang.Exception</exception> >> > >> <handled><constant>true</constant></handled> >> > >> <log message="XML WARN: ${exception.message}"/> >> > >> </onException></routeConfiguration> >> > >> >> > >> And then the route: >> > >> >> > >> <route routeConfigurationId="xmlError"> >> > >> <from uri="timer:xml?period=5s"/> >> > >> <log message="I am XML"/> >> > >> <throwException exceptionType="java.lang.Exception" >> message="Some kind of XML error"/></route> >> > >> >> > >> >> > >> I see the error thrown "Some kind of XML error", but I don't see it >> > >> handled (for example the XML WARN message). Is there something that >> I am >> > >> missing? >> > >> >> > >> Raymond >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> On Mon, Apr 11, 2022 at 6:06 PM Chirag <chirag.sangh...@gmail.com> >> wrote: >> > >> >> > >>> You could wrap it using try/catch. >> > >>> >> > >>> See: https://camel.apache.org/manual/try-catch-finally.html >> > >>> >> > >>> My experience with it is - it depends on the endpoint involved to >> > >>> throw exceptions and enter doCatch appropriately. >> > >>> >> > >>> ચિરાગ/चिराग/Chirag >> > >>> ------------------------------------------ >> > >>> Sent from My Gmail Account >> > >>> >> > >>> On Mon, Apr 11, 2022 at 11:10 AM Claus Ibsen <claus.ib...@gmail.com >> > >> > >>> wrote: >> > >>> > >> > >>> > Hi >> > >>> > >> > >>> > See routes configuration >> > >>> > https://camel.apache.org/manual/route-configuration.html >> > >>> > >> > >>> > On Mon, Apr 11, 2022 at 4:30 PM ski n <raymondmees...@gmail.com> >> > >>> wrote: >> > >>> > > >> > >>> > > I am indeed using Camel 3 (Currently 3.14.2) and using Maven. I >> just >> > >>> use >> > >>> > > plain Java (camel core), so I have a similar setup as your >> example >> > >>> (only >> > >>> > > I'm using Java, instead of the application.properties to >> configure >> > >>> the >> > >>> > > Camel context and its routes). Your example helped me to also >> use >> > >>> the Yaml >> > >>> > > dsl. >> > >>> > > >> > >>> > > I am still wondering how to do proper errorHandling/onException >> with >> > >>> the >> > >>> > > routesloader. >> > >>> > > >> > >>> > > I can set for example the errorHandler globally: >> > >>> > > >> > >>> > > extendedCamelContext.setErrorHandlerFactory(routeErrorHandler); >> > >>> > > >> > >>> > > But I rather set it per route / per exception (and best of all >> from >> > >>> the >> > >>> > > xml/yaml files). Like it used to be done like this: >> > >>> > > >> > >>> > > <camelContext id="myCamelContext" xmlns=" >> > >>> > > http://camel.apache.org/schema/spring";> >> > >>> > > <!-- Catch the authorization exception and set the Access >> Denied >> > >>> > > message back --> >> > >>> > > <onException> >> > >>> > > >> > >>> <exception>org.apache.camel.CamelAuthorizationException</exception> >> > >>> > > <handled> >> > >>> > > <constant>true</constant> >> > >>> > > </handled> >> > >>> > > <transform> >> > >>> > > <simple>Access Denied with the Policy of >> > >>> ${exception.policyId} >> > >>> > > !</simple> >> > >>> > > </transform> >> > >>> > > </onException> >> > >>> > > >> > >>> > > <route> >> > >>> > > <from uri="servlet:user"/> >> > >>> > > <!-- wrap the route in the policy which enforces security >> > >>> check --> >> > >>> > > <policy ref="user"> >> > >>> > > <transform> >> > >>> > > <simple>Normal user can access this service</simple> >> > >>> > > </transform> >> > >>> > > </policy> >> > >>> > > </route> >> > >>> > > >> > >>> > > <route> >> > >>> > > <from uri="servlet:admin"/> >> > >>> > > <!-- wrap the route in the policy which enforces security >> > >>> check --> >> > >>> > > <policy ref="admin"> >> > >>> > > <transform> >> > >>> > > <simple>Call the admin operation OK</simple> >> > >>> > > </transform> >> > >>> > > </policy> >> > >>> > > </route> >> > >>> > > >> > >>> > > </camelContext> >> > >>> > > >> > >>> > > But such files are not accepted by the routesLoader. >> > >>> > > >> > >>> > > I also tried setting the error handler on a specific route from >> Java >> > >>> like >> > >>> > > this: >> > >>> > > >> > >>> > > Route route = context.getRoute(myRouteId); >> > >>> > > route.setErrorHandlerFactory(routeErrorHandler); >> > >>> > > >> > >>> > > But that didn't change anything. >> > >>> > > >> > >>> > > Raymond >> > >>> > > >> > >>> > > >> > >>> > > >> > >>> > > >> > >>> > > >> > >>> > > >> > >>> > > >> > >>> > > On Mon, Apr 11, 2022 at 3:36 PM Chirag < >> chirag.sangh...@gmail.com> >> > >>> wrote: >> > >>> > > >> > >>> > > > Hello Raymond, >> > >>> > > > >> > >>> > > > Are you trying to use Camel 3 ? >> > >>> > > > Would you use Maven or Gradle to build? >> > >>> > > > >> > >>> > > > Here is an example: >> > >>> > > > >> > >>> >> https://github.com/chiragsanghavi/camel-experiments/tree/main/processor >> > >>> > > > if this helps. >> > >>> > > > >> > >>> > > > This example was built to demonstrate a bug- but if you update >> > >>> maven >> > >>> > > > to use camel 3.1.5 - it should work. >> > >>> > > > Only thing needed to support YAML is a change in pom.xml to >> include >> > >>> > > > yaml dsl and create yaml files and put them into "routes" >> folder. >> > >>> > > > >> > >>> > > > <dependency> >> > >>> > > > <groupId>org.apache.camel</groupId> >> > >>> > > > <artifactId>camel-yaml-dsl</artifactId> >> > >>> > > > </dependency> >> > >>> > > > >> > >>> > > > >> > >>> > > > >> > >>> > > > ચિરાગ/चिराग/Chirag >> > >>> > > > ------------------------------------------ >> > >>> > > > Sent from My Gmail Account >> > >>> > > > >> > >>> > > > On Mon, Apr 11, 2022 at 6:15 AM ski n < >> raymondmees...@gmail.com> >> > >>> wrote: >> > >>> > > > > >> > >>> > > > > Hi All, >> > >>> > > > > >> > >>> > > > > I like to use the routesLoader ( >> > >>> > > > > >> > >>> > > > >> > >>> >> https://javadoc.io/static/org.apache.camel/camel-api/3.16.0/org/apache/camel/spi/annotations/RoutesLoader.html >> > >>> > > > > ). >> > >>> > > > > I have some questions about how to properly use it. >> > >>> > > > > >> > >>> > > > > 1) Is there any documentation on how to use it? (At >> > >>> > > > > https://camel.apache.org/manual/ or >> > >>> > > > > https://camel.apache.org/components/next/index.html). >> > >>> > > > > >> > >>> > > > > 2) I could find some examples ( >> > >>> https://github.com/apache/camel-examples >> > >>> > > > ), >> > >>> > > > > there the routesloader example says: >> > >>> > > > > >> > >>> > > > > <!-- >> > >>> > > > > if you want to have multiple routes, you can either have >> > >>> multiple >> > >>> > > > files >> > >>> > > > > with 1 <route> per file or >> > >>> > > > > you can use <routes> as root tag, such as >> > >>> > > > > <routes><route>...</route><route>...</route></routes> >> > >>> > > > > --> >> > >>> > > > > >> > >>> > > > > <route> >> > >>> > > > > <from uri="timer:xml?period=5s"/> >> > >>> > > > > <log message="I am XML"/> >> > >>> > > > > </route> >> > >>> > > > > >> > >>> > > > > These examples loads xml, can it also loads other DSL's? >> (Like >> > >>> yaml or >> > >>> > > > > Java). >> > >>> > > > > >> > >>> > > > > 3) How to use OnException with the RouteLoader? >> > >>> > > > > >> > >>> > > > > I thought maybe like this >> > >>> > > > > >> > >>> > > > > <routes xmlns="http://camel.apache.org/schema/spring";> >> > >>> > > > > <onException> >> > >>> > > > > <exception>java.lang.Exception</exception> >> > >>> > > > > <redeliveryPolicy maximumRedeliveries="0" >> > >>> redeliveryDelay="5000"/> >> > >>> > > > > <handled><constant>true</constant></handled> >> > >>> > > > > <toD uri="file://some/directory"/> >> > >>> > > > > </onException> >> > >>> > > > > <route> >> > >>> > > > > <from uri="timer:xml?period=5s"/> >> > >>> > > > > <log message="I am XML"/> >> > >>> > > > > </route> >> > >>> > > > > </routes> >> > >>> > > > > >> > >>> > > > > But this gave me a nullpointer exception. >> > >>> > > > > >> > >>> > > > > 4) Load from string directly >> > >>> > > > > >> > >>> > > > > In Camel 2 you could load routes directly from string like >> this: >> > >>> > > > > >> > >>> > > > > ManagedCamelContext managed = >> > >>> > > > > context.getExtension(ManagedCamelContext.class); >> > >>> > > > > managedContext = managed.getManagedCamelContext(); >> > >>> > > > > managedContext.addOrUpdateRoutesFromXml(routeAsString); >> > >>> > > > > >> > >>> > > > > In Camel 3 the "addOrUpdateRoutesFromXml" is depracated. >> With >> > >>> routeLoader >> > >>> > > > > from string I do it like this: >> > >>> > > > > >> > >>> > > > > ExtendedCamelContext extendedCamelContext = >> > >>> > > > > context.adapt(ExtendedCamelContext.class); >> > >>> > > > > RoutesLoader loader = >> extendedCamelContext.getRoutesLoader(); >> > >>> > > > > Resource resource = ResourceHelper.fromString("any.xml", >> route); >> > >>> > > > > >> > >>> > > > > loader.updateRoutes(resource); >> > >>> > > > > >> > >>> > > > > Is this the only way in Camel 3, or is there also a specific >> > >>> method to >> > >>> > > > use >> > >>> > > > > strings directly (and maybe only specify the DSL used) like: >> > >>> > > > > >> > >>> > > > > loader.updateRoutes(routeAsString, "xml"); >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > Raymond >> > >>> > > > >> > >>> > >> > >>> > >> > >>> > >> > >>> > -- >> > >>> > Claus Ibsen >> > >>> > ----------------- >> > >>> > http://davsclaus.com @davsclaus >> > >>> > Camel in Action 2: https://www.manning.com/ibsen2 >> > >>> >> > >> >> >
