Hi I have added the below PropertyDescriptor to my custom processor to be able to use Mongo connection pool. however, Nifi wont start. Below errors are generated. can you advise ? I included the below dependencies as well.
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-mongodb-client-service-api</artifactId>
<version>1.8.0</version>
<type>jar</type>
</dependency>
import org.apache.nifi.mongodb.MongoDBClientService;
static final PropertyDescriptor CLIENT_SERVICE = new PropertyDescriptor.Builder()
.name("mongo-client-service")
.displayName("Client Service")
.description("If configured, this property will use the assigned client service for connection pooling.")
.required(true)
.identifiesControllerService(MongoDBClientService.class)
.build();
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2018-12-17 09:01:49,569 INFO [main] org.apache.nifi.web.server.JettyServer Loading WAR: /opt/nifi-1.8.0/./work/nar/framework/nifi-framework-nar-1.8.0.nar-unpacked/NAR-INF/bundled-dependencies/nifi-web-error-1.8.0.war with context path set to /
2018-12-17 09:01:49,638 INFO [main] org.apache.nifi.web.server.JettyServer Running in HTTP mode; host headers not restricted
2018-12-17 09:01:50,945 ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to java.util.ServiceConfigurationError: org.apache.nifi.processor.Processor: Provider nifi.processors.nifi.MyProcessor could not be instantiated
java.util.ServiceConfigurationError: org.apache.nifi.processor.Processor: Provider nifi.processors.nifi.MyProcessor could not be instantiated
at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at org.apache.nifi.nar.ExtensionManager.loadExtensions(ExtensionManager.java:148)
at org.apache.nifi.nar.ExtensionManager.discoverExtensions(ExtensionManager.java:123)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:838)
at org.apache.nifi.NiFi.<init>(NiFi.java:157)
at org.apache.nifi.NiFi.<init>(NiFi.java:71)
at org.apache.nifi.NiFi.main(NiFi.java:296)
Caused by: java.lang.NoClassDefFoundError: org/apache/nifi/mongodb/MongoDBClientService
at nifi.processors.nifi.MyProcessor.<clinit>(MyProcessor.java:79)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
... 8 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.nifi.mongodb.MongoDBClientService
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 15 common frames omitted
2018-12-17 09:01:50,952 INFO [Thread-1] org.apache.nifi.NiFi Initiating shutdown of Jetty web server...
2018-12-17 09:01:50,954 INFO [Thread-1] org.apache.nifi.NiFi Jetty web server shutdown completed (nicely or otherwise).
... View more
