DxFileStore.java

/*
 * Copyright (c) 2013, the authors.
 *
 *   This file is part of 'DXFS'.
 *
 *   DXFS is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   DXFS is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with DXFS.  If not, see <http://www.gnu.org/licenses/>.
 */

package nextflow.fs.dx;

import java.io.IOException;
import java.nio.file.FileStore;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.FileAttributeView;
import java.nio.file.attribute.FileStoreAttributeView;

/**
 * DnaNexus {@code FileStore} concrete class. Note: alla methods throw {@code UnsupportedOperationException} since
 * required information are not provided by the target API
 *
 * @author  Paolo Di Tommaso <paolo.ditommaso@gmail.com>
 */

public class DxFileStore extends FileStore {

    private final DxFileSystem dxfs;

    DxFileStore(DxFileSystem dxfs) {
        this.dxfs = dxfs;
    }

    @Override
    public String name() {
        return dxfs.toString() + "/";
    }

    @Override
    public String type() {
        return "dxfs";
    }

    @Override
    public boolean isReadOnly() {
        return dxfs.isReadOnly();
    }

    @Override
    public boolean supportsFileAttributeView(Class<? extends FileAttributeView> type) {
        return (type == BasicFileAttributeView.class );
    }

    @Override
    public boolean supportsFileAttributeView(String name) {
        return name.equals("basic") || name.equals("dxfs");
    }

    @Override
    @SuppressWarnings("unchecked")
    public <V extends FileStoreAttributeView> V getFileStoreAttributeView(Class<V> type) {
        if (type == null)
            throw new NullPointerException();
        return (V)null;
    }

    @Override
    public long getTotalSpace() throws IOException {
         throw new UnsupportedOperationException("TODO");
    }

    @Override
    public long getUsableSpace() throws IOException {
        throw new UnsupportedOperationException("TODO");
    }

    @Override
    public long getUnallocatedSpace() throws IOException {
        throw new UnsupportedOperationException("TODO");
    }

    @Override
    public Object getAttribute(String attribute) throws IOException {
         if (attribute.equals("totalSpace"))
               return getTotalSpace();
         if (attribute.equals("usableSpace"))
               return getUsableSpace();
         if (attribute.equals("unallocatedSpace"))
               return getUnallocatedSpace();
         throw new UnsupportedOperationException("does not support the given attribute");
    }


}