URI is not hierarchical

[jaid]

Hey,
I got a problem with runnable jars that I export with Eclipse.

VM Call:

java -Djava.library.path=D:\Users\Dario\Desktop\native\windows -jar gametest.jar

Console log:


Exception points to:

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public static void main(String[] args) {       try {          AppGameContainer app = new AppGameContainer(new Game());          app.setIcon("i/default.png");          app.setDisplayMode(1024, 768, false);          app.setTargetFrameRate(30);          app.setMouseGrabbed(true);          app.start(); // LINE 31      } catch (SlickException e) {          e.printStackTrace();       }    }

Everything is working fine in Eclipse. Any suggestions? =)

[princec]

That's not where the exception points to.

Cas

[jaid]

Ah, thanks, the actual trigger is Game.java:47.

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try {          for (String n : new File(ClassLoader.getSystemResource("i").toURI()).list()) // LINE 47 // For every image file in src\i            i.put(n.substring(0, n.indexOf('.')), new Image("i/" + n)); // load and put to ArrayList<Image> i         i.put("clickable1", i.get("clickable0").getFlippedCopy(true, false));       } catch (URISyntaxException e) {          e.printStackTrace();       }

I'm still looking for help with bypass that exception.

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[princec]

How about you print out what those URIs look like after you've done all that monkeying with them? I have a feeling it will be quite obvious once you see them.

Cas

[jaid]

Debug code:

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try {          System.err.println(ClassLoader.getSystemResource("i").toURI().toString());       } catch (URISyntaxException e1) {          e1.printStackTrace();       }

Result in Eclipse:
file:/D:/Users/Dario/Desktop/space/Devrays/bin/i

Result as runnable jar:
jar:file:/D:/Users/Dario/Desktop/gametest.jar!/i

[nsigma]

You can't create a File from a jar: URI.  Check the JavaDoc for File - the URI must have a scheme equal to file (ie. begin file:)

Quick Googling found this http://stackoverflow.com/questions/1429172/list-files-inside-a-jar-file - might be useful.

Or just have a plain text file in the JAR with a list of all your images and parse that.  Depends on where you're running - the above requires a security permission.

Best wishes, Neil

[jaid]

Jar entry listing works in theory, but this would mean that I can't execute my projects through Eclipse anymore.
Is there no way for both Eclipse debugging and exportet .jars? =/

[sproingie]

Use the index file that nsigma mentioned, and open all your resources with getResourceAsStream().  Resource location problems pretty much melt away when you do that.

[jaid]

I prefer to not create a txt with an image index. This does not seem to be very productive and slows down the developement. I finally created a data initialization that automatically checks if it is a jar or not during the runtime and chooses the correct way to load files, works perfect for me:

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try {          if (Game.class.getResource("/" + Game.class.getName().replace('.', '/') + ".class").toString().startsWith("file"))             loadFiles();          else             loadResources();       } catch (Exception e) {          e.printStackTrace();       }

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static void loadFiles() {       try {          for (String n : new File(ClassLoader.getSystemResource("i").toURI()).list())             i.put(n.substring(0, n.indexOf('.')), new Image("i/" + n));       } catch (URISyntaxException | SlickException e) {          e.printStackTrace();       }       try {          for (String n : new File(ClassLoader.getSystemResource("f").toURI()).list()) {             if (n.endsWith("t")) {                n = n.substring(0, n.indexOf('.'));                f.put(n, new AngelCodeFont("f/" + n + ".fnt", "f/" + n + ".png"));             }          }       } catch (URISyntaxException | SlickException e) {          e.printStackTrace();       }    }

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static void loadResources() {       try {          Enumeration<JarEntry> en = new JarFile("gametest.jar").entries();          while (en.hasMoreElements()) {             JarEntry n = (JarEntry) en.nextElement();             String name = n.getName();             if (name.startsWith("i") && name.indexOf('.') > -1)                i.put(name.substring(2, name.indexOf('.')), new Image(name));             if (name.endsWith("fnt"))                f.put(name.substring(2, name.indexOf('.')), new AngelCodeFont(name, name.substring(0, name.indexOf('.')) + ".png"));          }       } catch (IOException | SlickException e) {          e.printStackTrace();       }    }

[ra4king]

"jar:" is not a recognized URI prefix, meaning you can not be able to create a File object of anything inside a zipped file (jar).

You can however use the ZipInputStream class and its related classes to read file entries inside a zipped file

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[nsigma]

"jar:" is not a recognized URI prefix, meaning you can not be able to create a File object of anything inside a zipped file (jar).

You can however use the ZipInputStream class and its related classes to read file entries inside a zipped file

JarFile et al extends ZipFile et al!

btw, I mentioned File doesn't support the jar scheme already. 

[ra4king]

Well excuuuuuse me