kurmis's profile - activity

I recommend to follow this tutorial: http://docs.rosjava.googlecode.com/hg/rosjava_core/html/building.html

Are you behind a router (or any NAT device)? if that is the case you will need to configure it to pass needed ports directly to your computer.

if I try to run it with this command:

java -jar rosjava_tutorial_pubsub-0.0.0-SNAPSHOT.jar org.ros.tutorials.pubsub.Listener

I get an error:

Failed to load Main-Class manifest attribute from
rosjava_tutorial_pubsub-0.0.0-SNAPSHOT.jar

so I use a dirty workaround adapted from this guide

http://mrhaki.blogspot.com/2010/09/gradle-goodness-run-java-application.html

edit build.gradle file by adding this:

task(runListener, dependsOn: 'classes', type: JavaExec) {
  main = 'org.ros.tutorials.pubsub.Pubsub'
  classpath = sourceSets.main.runtimeClasspath
  args 'Listener'
}
task(runTalker, dependsOn: 'classes', type: JavaExec) {
  main = 'org.ros.tutorials.pubsub.Pubsub'
  classpath = sourceSets.main.runtimeClasspath
  args 'Talker'
}

create a Pubsub.java and put it where Talker.java and Listener.java are.

Pubsub.java:

package org.ros.tutorials.pubsub;

import org.ros.node.*;

public class Pubsub {
  public static void main(String[] args) {
    if(args ==null)
      return;
    NodeMain nodeMain = null;
    NodeConfiguration nodeConf = null;
    if(args[0].equals("Listener")) {
      nodeMain = new Listener();
      nodeConf = NodeConfiguration.newPrivate();
    }
    else if(args[0].equals("Talker")) {
      nodeMain = new Talker();
      nodeConf = NodeConfiguration.newPrivate();
    }
    NodeMainExecutor runner = DefaultNodeMainExecutor.newDefault();
    runner.execute(nodeMain, nodeConf);
  }
}

then you can run them with commands: gradle runListener and gradle runTalker

I think NodeRunner was renamed to NodeMainExecutor in newer releases. Correct me if I’m wrong.

managed to compile it with: ./gradlew rosjava:install -x tests

will update on mar 30-31, can't get to that pc now.

trying to compile rosjava using gradle following:

http://docs.rosjava.googlecode.com/hg/rosjava_core/html/building.html

i managed to get to fourth step, when i run: ./gradlew rosjava:install everything seems to compile good, but once i hit

Building > :rosjava:test > 19 tests completed

it seems to freeze, i ran it with ./gradlew rosjava:isntall --debug and it seems to loop this forever:

23:15:47.667 [DEBUG] [org.gradle.messaging.remote.internal.WorkerProtocol] Dispatching request to worker: [Request consumer: 702b4444-12e7-4914-be76-28b05bff8732, payload: [MethodInvocation method: output()]]
23:15:47.667 [DEBUG] [org.gradle.messaging.remote.internal.WorkerProtocol] Dispatching request to worker: [Request consumer: 702b4444-12e7-4914-be76-28b05bff8732, payload: [MethodInvocation method: output()]]
> Building > :rosjava:test > 19 tests completed

using:

------------------------------------------------------------
Gradle 1.0-milestone-9
------------------------------------------------------------

Gradle build time: Tuesday, March 13, 2012 4:10:09 PM UTC
Groovy: 1.8.6
Ant: Apache Ant(TM) version 1.8.2 compiled on December 20 2010
Ivy: 2.2.0
JVM: 1.6.0_23 (Sun Microsystems Inc. 20.0-b11)
OS: Linux 3.0.0-16-generic-pae i386

Apache Maven 3.0.4 (r1232337; 2012-01-17 10:44:56+0200)
Maven home: /home/vaida/programs/apache-maven-3.0.4
Java version: 1.6.0_23, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-6-openjdk/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.0.0-16-generic-pae", arch: "i386", family: "unix"

Ubuntu 11.10

Anyone know what might be causing that loop or how to turn off that test?

First i downloaded rosjava using: hg clone https://rosjava.googlecode.com/hg/ rosjava_core

then following the tutorial: http://docs.rosjava.googlecode.com/hg/rosjava_core/html/building.html

i managed to compile rosjava bootstrap using: ./gradlew rosjava_bootstrap:install

and on fourth step i get an error:

mindaugas@Workhorse:~/ros_workspace/rosjava_core$ rosrun rosjava_bootstrap install_generated_modules.py rosjava
Traceback (most recent call last):
  File "/home/mindaugas/ros_workspace/rosjava_core/rosjava_bootstrap/scripts/install_generated_modules.py", line 126, in <module>
    rospack = roslib.packages.ROSPackages()
AttributeError: 'module' object has no attribute 'ROSPackages'
mindaugas@Workhorse:~/ros_workspace/rosjava_core$

I am using fuerte compiled from source. Any ideas?

Thanks in advance.