package org.webslinger.commons.vfs.cow;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Collections;

 import org.apache.commons.vfs.FileName;

 import org.apache.commons.vfs.FileSystemException;

 import org.webslinger.commons.vfs.operations.COWStateOperation;

 public class COWCOWStateOperation<T extends COWFileObject> implements COWStateOperation {

     protected final COWFileSystem fs;

     protected final FileName name;

     protected COWCOWStateOperation(T file) {

         fs = file.getFileSystem();

         name = file.getName();

     }

     public final void process() throws FileSystemException {

         throw new UnsupportedOperationException();

     }

     public void clear() throws FileSystemException {

         fs.getCOWEntry(name.getPath()).clear();

     }

     public Collection<String> getBases() throws FileSystemException {

         return fs.getCOWEntry(name.getPath()).getBases();

     }

     public boolean addBase(String relative) throws FileSystemException {

         return fs.getCOWEntry(name.getPath()).addBase(relative);

     }

     public boolean removeBase(String relative) throws FileSystemException {

         return fs.getCOWEntry(name.getPath()).removeBase(relative);

     }

     public boolean isDeleted() throws FileSystemException {

         return fs.getCOWEntry(name.getPath()).isDeleted();

     }

     public void setDeleted(boolean deleted) throws FileSystemException {

         fs.getCOWEntry(name.getPath()).setDeleted(deleted);

     }

 }