stefan-ka
commented
4 years ago Interesting. I assume /usr/bin is part of your PATH environment variable, right? Can you execute the Graphviz commands such as dot from the terminal?
Closed kaisbensalah closed 4 years ago
stefan-ka
commented
4 years ago Interesting. I assume /usr/bin is part of your PATH environment variable, right? Can you execute the Graphviz commands such as dot from the terminal?
kaisbensalah
commented
4 years ago @stefan-ka Yep. The dot command works fine for me.
stefan-ka
commented
4 years ago This is weird. Works perfectly fine on my Ubuntu. Can you check your PATH variable anyway? Does it contain /usr/bin?
kaisbensalah
commented
4 years ago @stefan-ka Yep, it contains it.
stefan-ka
commented
4 years ago Hmmm, I cannot reproduce this... Maybe a user/permission problem?
The error message means that the dot executable cannot be found in any of the directories listed by your PATH variable.
stefan-ka
commented
4 years ago @kaisbe I also set up a Debian Linux and tested it with Eclipse 2019-12, and it works fine for me.
There must be an issue with your PATH variable (separators always correct?) or the system user under which you run Eclipse cannot see the executable for permission reasons...
kaisbensalah
commented
4 years ago @stefan-ka OK. This is what's in PATH variable:
/home/kais/.sdkman/candidates/sbt/current/bin:/home/kais/.sdkman/candidates/java/current/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
kaisbensalah
commented
4 years ago @stefan-ka
or the system user under which you run Eclipse cannot see the executable for permission reasons...
As a regular user (on the same session where I use Eclipse), This is what I get using ls /usr/bin | grep dot:
dot
dot2gxl
dot_builtins
dotlockfile
dotty
gxl2dot
vimdotThis sounds very weird, since you were not able to reproduce the issue using the same version of Eclipse.
stefan-ka
commented
4 years ago @kaisbe Really, very weird. Whats the output of ls -l /usr/bin | grep dot?
Is the dot file marked as executable? (x permission?)
kaisbensalah
commented
4 years ago @stefan-ka This is the output:
lrwxrwxrwx 1 root root 3 أفريل 8 2019 circo -> dot lrwxrwxrwx 1 root root 29 أفريل 8 2019 dot -> ../sbin/libgvc6-config-update lrwxrwxrwx 1 root root 6 أفريل 8 2019 dot2gxl -> gxl2gv -rwxr-xr-x 1 root root 18808 أفريل 8 2019 dot_builtins -rwxr-sr-x 1 root mail 18944 ديسمبر 3 2017 dotlockfile -rwxr-xr-x 1 root root 2085 أفريل 8 2019 dotty lrwxrwxrwx 1 root root 3 أفريل 8 2019 fdp -> dot lrwxrwxrwx 1 root root 6 أفريل 8 2019 gxl2dot -> gxl2gv lrwxrwxrwx 1 root root 3 أفريل 8 2019 neato -> dot lrwxrwxrwx 1 root root 3 أفريل 8 2019 osage -> dot lrwxrwxrwx 1 root root 3 أفريل 8 2019 patchwork -> dot lrwxrwxrwx 1 root root 3 أفريل 8 2019 sfdp -> dot lrwxrwxrwx 1 root root 3 أفريل 8 2019 twopi -> dot -rwxr-xr-x 1 root root 1082 أفريل 8 2019 vimdot
stefan-ka
commented
4 years ago @kaisbe This is so weird, I'm running out of ideas... Can you run the following Java program within your Eclipse?
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class Test {
public static void main(String[] args) throws IOException {
Path path = Paths.get("/usr/bin");
System.out.println("directory exists: " + Files.exists(path));
System.out.println("Files named 'dot': ");
Files.list(path)
.filter(filePath -> "dot".equals(filePath.getFileName().toString()))
.filter(filePath -> Files.isRegularFile(filePath))
.filter(Files::isExecutable)
.forEach(filePath -> System.out.println(filePath.getFileName().toString()));
}
}Do you get the following output?
directory exists: true
Files named 'dot':
dot@stefan-ka The output that I'm getting is different:
directory exists: true Files named 'dot':
stefan-ka
commented
4 years ago @kaisbe Okay, seems like the file cannot be found via Java. Weird. Or can you check if its one of the filters that remove it from the list? Do you get the same output if you remove the two lines filtering regular and executable files?
stefan-ka
commented
4 years ago Or remove all three filter lines and check the output for the dot file...
kaisbensalah
commented
4 years ago @stefan-ka I tried removing all the filters, and the program lists many files, but dot isn't one of them.
kaisbensalah
commented
4 years ago @stefan-ka The JDK version is openjdk 11.0.6 2020-01-14.
stefan-ka
commented
4 years ago @kaisbe Exactly the same JDK I used on the Debian test machine... Sorry, this is totally weird, but in this case it looks like some problem on your specific system and not with our code... Don't know why this file is not found via Java. Maybe just try to remove Graphviz and install it fresh? :) Sorry, I'm really running out of ideas what could be wrong :)
kaisbensalah
commented
4 years ago @stefan-ka OK. No problem. Sorry for this weird issue and thanks a lot for your elaboration. I'm closing this bug report for now, since my current environment is causing this problem. Cheers.
stefan-ka
commented
4 years ago @kaisbe Sorry, I could not help... I hope you can solve it and find a way to use Context Mapper and the Context Map generator.
You could also try to use the generator as we do it in our "standalone" Java application, outside the Eclipse context: https://github.com/ContextMapper/context-mapper-standalone-example/blob/master/src/main/java/org/contextmapper/standalone/example/ContextMapGeneratorExample.java However, this way you have to write some lines of Java code. Or just clone the repository above and change the path to your CML file in the class linked above. But I really don't know if this helps, maybe still won't work if the executable cannot be found out of a Java app.
Describe the bug Whenever I try to generate graphical context map, I get the message "Graphviz has not been found on your system". Although graphviz is installed on my Debian Linux host - this what I obtain when I run
apt-file list graphviz:To Reproduce Steps to reproduce the behavior:
Expected behavior Graphical context map gets generated.
IDE and Plugin (please complete the following information):