I have configured Quartz endpoint for the scheduling requirement. However currently in my route configuration, trigger information is hard coded in the XML configuration file. As per the requirement, trigger information needs to come from DB.
<camel:route>
<camel:from uri="quartz://commandActions/MSFI?cron=15+17+13+?+*+MON-SUN+*" />
<camel:bean ref="userGateway" method="generateCommand" />
<camel:to uri="wmq:SU.SCHEDULER" />
</camel:route>
Quartz documentation says Jobs and triggers can be stored in database and are accessed using JDBCJobStore. Is it possible to configure Camel Quartz endpoint to use JDBCJobStore? I tried to find out an example but couldn't find. If someone has implemented this before, kindly share an example.
Thanks,
Vaibhav
Yeah see the quartz documentation how to configure it to use a jdbc job store. You can do this using a quartz.properties file, which you can tell Camel to use.
See the Camel side part here: http://camel.apache.org/quartz at the section Configuring quartz.properties file
Related
Is there a way to configure snowflakes connection pooling in websphere application serve.
I tried below config inside server.xml file. But not working.
<dataSource id="SnowflakeDataSource" jndiName="jdbc/BM_SF" type="javax.sql.DataSource">
<properties db="abcd" schema="_TARGET" URL="jdbc:snowflake://adpdc_cdl.us-east-1.privatelink.snowflakecomputing.com" user="****" password="****" />
<jdbcDriver libraryRef="DatacloudLibs" javax.sql.DataSource="net.snowflake.client.jdbc.SnowflakeBasicDataSource"/>
</dataSource>
To clarify, the configuration that you have configures WebSphere Application Server Liberty's connection pooling for a Snowflake data source, rather than Snowflake's connection pooling.
The configuration that you have looks mostly pretty good.
When I looked up the SnowflakeBasicDataSource class that you are using, I can see that it has a property called "databaseName", not "db", so you'll need to switch that in your configuration.
You will also need to configure one of the jdbc-4.x features in Liberty if you haven't already, and if you plan to look it up in JNDI (vs inject it), you'll need the jndi-1.0 feature.
Here is an example with some corrections:
<featureManager>
<feature>jdbc-4.2</feature>
<feature>jndi-1.0</feature>
... your other features here
</featureManager>
<dataSource id="SnowflakeDataSource" jndiName="jdbc/BM_SF" type="javax.sql.DataSource">
<properties databaseName="abcd" schema="_TARGET" URL="jdbc:snowflake://adpdc_cdl.us-east-1.privatelink.snowflakecomputing.com" user="****" password="****" />
<jdbcDriver libraryRef="DatacloudLibs" javax.sql.DataSource="net.snowflake.client.jdbc.SnowflakeBasicDataSource"/>
</dataSource>
If this still doesn't work, look into your definition of the DatacloudLibs library to ensure that it is properly pointing at the Snowflake JDBC driver, and if it still doesn't work, post the error message that you see in case it helps to determine the cause.
This is my Camel Route:
<route>
<from uri="file:///c:/"/>
<to uri="file:///D:/"/>
</route>
In case of any failure in this route I want to persistently store files in Kaha DB so that files won't be lost. But am not aware of blueprint.xml configuration of Kaha DB persistence for storing files. And my Activemq.xml file is as follows
<broker brokerName="kahaDB_Persistence" persistent="true" useShutdownHook="false">
<persistenceAdapter>
<kahaDB directory="${data}/kahadb/"
journalMaxFileLength="100mb"
concurrentStoreAndDispatchQueues="false"
concurrentStoreAndDispatchTopics="false"/>
</persistenceAdapter>
</broker>
Please advise me how to connect to this KahaDB from blueprint.xml by considering above mentioned route.
Camel's file component has a built in archive feature that saves files that have been processed. It copies them into a folder called ".camel", but it can be changed with a configuration option.
I would not recommend using KahaDB, as it doesn't fit the "right tool for the job" mantra.
Camel File component docs
Is it possible to change cron expression of camel quartzendpoint at runtime using jmx or so ?
You can update the route itself (including configuration of the quartz endpoint). As an example you can see how Camel plugin of Hawt.io (http://hawt.io/plugins/camel/) does it
No, but you could experiment with CamelContext and see if you can add new routes at runtime.
Can I use apache camel to invoke remote ejbs (ejb2.0)? How do I pass parameters to these ejsb? The example given on the camel website is not very clear. Also I'm not using spring. Can someone please help?
To call remote EJBs you can just use Java code, and let Camel call your java code.
If you want to try the camel-ejb component, then you need to configure the component for remote EJBs which is not so easy - there is a JIRA ticket to improve this in a future release.
So I suggest to just use Java code - eg just call these remote EJBs as you would do from regular Java code without using Apache Camel.
I'm trying to implement a WireTap with Java DSL Fluent Builders, which gives the following example code snippet.
from("direct:start")
.to("log:foo")
.wireTap("direct:tap")
.to("mock:result");
This works if I run a mock example (e.g. camel-example-jms-file). However if I take the sample code and try to substitute a real Broker instance and Queue to replace the mock objects it fails with error below.
from("tcp://localhost:61616")
.to("ativemq:atsUpdateQueue")
.wireTap("activemq:fdmCaptureQueue");
Then it fails
org.apache.camel.FailedToCreateRouteException: Failed to create route route2: Route(route2)[[From[tcp://localhost:61616?queue=atsUpdateQue... because of Failed to resolve endpoint: tcp://localhost:61616?queue=atsUpdateQueue due to: No component found with scheme: tcp
I've googled extensively and all the example I've found use the virtual mock queues none seem to illustrate working with a real broker and but I cannot find any documentation on the URI specification for camel.
The important part of the error message describes the problem No component found with scheme: tcp, This is becasuse there is no "tcp" component for camel, however you can use the netty component if you want to interact with a tcp endpoint:
from("netty:tcp://localhost:61616")
more info here - http://camel.apache.org/netty.html
"tcp://localhost:61616" looks like the activemq broker address.
You need to setup the broker address to activemq component in Java DSL
camelContext.addComponent("activemq", activeMQComponent("tcp://localhost:61616"));
or in spring configuration file
<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL" value="tcp://somehost:61616"/>
</bean>
You can find more information about camel-activemq here
Thank you for the suggestions, while useful in increasing my understanding neither actually resolved my problem. My code was wrong and for the benefit of others I should have been using the following names.
final String sourceQueue = "activemq:queue:atsUpdateQueue";
final String destinationQueue = "activemq:queue:atsEndPoint";
final String wiretapQueue = "activemq:queue:fdmCaptureQueue";
from(sourceQueue).wireTap(wiretapQueue).copy().to(destinationQueue);