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Dynamic scripting for the JVM

There is a newer version: 1.4.6

package org.snapscript.common.store;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class FileStore implements Store {

   private final ClassPathStore store;
   private final File root;
   
   public FileStore(File root) {
      this.store = new ClassPathStore();
      this.root = root;
   }
   
   @Override
   public InputStream getInputStream(String path) {
      File resource = new File(root, path);
      
      if(!resource.exists()) {
         return store.getInputStream(path);
      }
      try {
         return new FileInputStream(resource);
      } catch(Exception e) {
         throw new StoreException("Could not read resource '" + path + "'", e);
      }
   }

   @Override
   public OutputStream getOutputStream(String path) {
      File resource = new File(root, path);
      
      if(resource.exists()) {
         resource.delete();
      }
      File parent = resource.getParentFile();
      
      if(parent.exists()) {
         parent.mkdirs();
      }
      try {
         return new FileOutputStream(resource);
      } catch(Exception e) {
         throw new StoreException("Could not write resource '" + path + "'", e);
      }
   }
}