Loading multiple versions of same library through vertx.

Srikanth Rajasekaran

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Jan 13, 2017, 6:08:55 AM1/13/17

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Greetings,

I am facing an issue with respect to the dependency conflict in my application developed using vertx. I have two dependencies Pheonix JDBC client and gRPC lib, which in turn has dependency on the library "protobuf-java" of version 2.5.0 and 3.0.2 respectively. For my application to work correctly I have to load both the version of "protobuf-java", otherwise it will not work. Is there a way in Vertx to load both the versions of same library?

Thanks

Jochen Mader

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Jan 13, 2017, 6:20:24 AM1/13/17

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Take a look at isolation groups:
http://vertx.io/docs/vertx-core/java/#_verticle_isolation_groups

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Jochen Mader | Lead IT Consultant

Srikanth Rajasekaran

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Jan 16, 2017, 3:32:24 AM1/16/17

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Hi Jochen Mader,

I am facing an issue with loading jars from the extra classpath set while deploying the verticles.

I have multiple verticles in my application. I am using isolation group to isolate a dependency (Phoenix lib) from other verticles. I am setting the extra classpath to include the phoenix jar as below. But it seems like the jars from extra classpath is not considered.

******************************************************************************************************

package com.test.init;

import java.util.Arrays;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import io.vertx.core.DeploymentOptions;

import io.vertx.rxjava.core.Vertx;

public class ApplicationLauncher {

private static Logger logger = LoggerFactory.getLogger(ApplicationLauncher.class);

public static void main(String[] args) {

System.getProperties().put("vertx.logger-delegate-factory-class-name",

"io.vertx.core.logging.SLF4JLogDelegateFactory");

logger.warn("Starting the service application");

Vertx vertx = Vertx.vertx();

DeploymentOptions opts = new DeploymentOptions().setIsolationGroup("Pheonix_Libs")

.setExtraClasspath(Arrays.asList("C:\\tmp\\lib\\phoenix-client-4.5.2-1.clabs_phoenix1.2.0.p0.774.jar"));

vertx.deployVerticleObservable(DBVerticle.class.getName(), opts).subscribe(res -> {

logger.warn("DB verticle is deployed");

}, ex -> {

logger.error("Failed to deploy the db verticle", ex);

});

}

******************************************************************************************************

package com.test.init;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import io.vertx.rxjava.core.AbstractVerticle;

public class DBVerticle extends AbstractVerticle {

private Logger logger = LoggerFactory.getLogger(DBVerticle.class);

@Override

public void start() throws Exception {

super.start();

logger.warn("Starting the deplyment of DB verticle…………");

new org.apache.phoenix.jdbc.PhoenixDriver();

logger.warn("DB verticle started successfully");

}

******************************************************************************************************

Since, I have deployed “DBVerticle” with phoenix jar set in the extra classpath. It is expected to be available during the run time. But I get “ClassNotFoundException” for the class “org.apache.phoenix.jdbc.PhoenixDriver” which is available in the phoenix jar. Please advise.

Reagrds,

Srikanth

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Srikanth Rajasekaran

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Jan 16, 2017, 3:34:23 AM1/16/17

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On Friday, January 13, 2017 at 4:50:24 PM UTC+5:30, Jochen Mader wrote:

Take a look at isolation groups:
http://vertx.io/docs/vertx-core/java/#_verticle_isolation_groups

2017-01-13 12:08 GMT+01:00 Srikanth Rajasekaran <sseka...@gmail.com>:

Greetings,

I am facing an issue with respect to the dependency conflict in my application developed using vertx. I have two dependencies Pheonix JDBC client and gRPC lib, which in turn has dependency on the library "protobuf-java" of version 2.5.0 and 3.0.2 respectively. For my application to work correctly I have to load both the version of "protobuf-java", otherwise it will not work. Is there a way in Vertx to load both the versions of same library?

Thanks

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