CODEWITHSUNDEEP
javapathresourcesrelative-path
Zbarcea Christian
Zbarcea Christian

Reputation: 9548

Java getting resource relative path

I'm trying to load a .wav file into the memory, but It keep telling me that the file doesn't exists.

String filename;

public MyClass(String _filename){
 filename = _filename;
}

public void run(){
   InputStream in = View.class.getClassLoader().getResourceAsStream("/sounds/"+filename);

   File inputFile = new File(in.toString());
   if(!inputFile.exists()){
      System.err.println("Wave file not found: " + in.toString());
      return;
   }
}

Console:

Wave file not found: java.io.FileInputStream@dd5b524

Wave file notfound: java.io.FileInputStream@570add96

The file is in the package folder. It's in

myPackage/sounds/write.wav

EDIT:

Actually I want to load the sound:

InputStream in = this.getClass().getResourceAsStream("sounds/"+filename);

AudioInputStream audioInputStream = null;
try { 
     audioInputStream = AudioSystem.getAudioInputStream(in);
} catch (UnsupportedAudioFileException e1) { 
         e1.printStackTrace();
         return;
} catch (IOException e1) { 
         e1.printStackTrace();
         return;
}

But the console is still with error:

Exception in thread "Thread-6" Exception in thread "Thread-7" java.lang.NullPointerException at com.sun.media.sound.SoftMidiAudioFileReader.getAudioInputStream(Unknown Source) at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source) at com.chrissman.threads.AePlayWave.run(AePlayWave.java:47) java.lang.NullPointerException at com.sun.media.sound.SoftMidiAudioFileReader.getAudioInputStream(Unknown Source) at javax.sound.sampled.AudioSystem.getAudioInputStream(Unknown Source) at com.chrissman.threads.AePlayWave.run(AePlayWave.java:47)

Upvotes: 0

Views: 3970

Answers (2)

Erik Ekman
Erik Ekman

Reputation: 2066

in.toString() does not return the path used to open the stream, it returns the class name followed by the hash: java.io.FileInputStream@dd5b524.

The error is because you do not have a file named java.io.FileInputStream@dd5b524 in your current directory.

Since you got an object instead of null as in it found your file. You can not use a File object to get this file, but you have access to it via the in object. Read the contents from the stream and use it.

Upvotes: 1

Mirko Adari
Mirko Adari

Reputation: 5103

Resources can be looked up both with a absolute and relative path. What you currently have is an absolute path starting with /. So change it into /myPackage/sounds/write.wav. In general I prefer absolute paths as it can be quite hard to determine which package is the "current" with relative paths.

Upvotes: 0

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