/*
* dCache - http://www.dcache.org/
*
* Copyright (C) 2016 Deutsches Elektronen-Synchrotron
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.dcache.pool.repository;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributeView;
import java.net.URI;
import java.util.Collections;
import java.util.Set;
import diskCacheV111.util.PnfsId;
import org.dcache.pool.movers.IoMode;
/**
* File store to be used with meta data utilities. Returns the same temporary file for
* all PNFS IDs. Depending on constructor arguments, the file may or may not exist.
*/
class DummyFileStore implements FileStore
{
public final Path file;
public enum Mode { ALL_EXIST, NONE_EXIST }
DummyFileStore(Mode mode) throws IOException
{
file = Files.createTempFile("dcache-yaml-tool", null);
file.toFile().deleteOnExit();
if (mode == Mode.NONE_EXIST) {
Files.delete(file);
}
}
@Override
public BasicFileAttributeView getFileAttributeView(PnfsId id) throws IOException {
return Files.getFileAttributeView(file, BasicFileAttributeView.class);
}
@Override
public URI create(PnfsId id) throws IOException {
// NOP (already created)
return get(id);
}
@Override
public RepositoryChannel openDataChannel(PnfsId id, IoMode mode) throws IOException {
return new FileRepositoryChannel(file, mode.toOpenString());
}
@Override
public URI get(PnfsId id)
{
return file.toUri();
}
@Override
public boolean contains(PnfsId id) {
return true;
}
@Override
public void remove(PnfsId id) {
// NOP
}
@Override
public Set<PnfsId> index()
{
return Collections.emptySet();
}
@Override
public long getFreeSpace()
{
return 0;
}
@Override
public long getTotalSpace()
{
return 0;
}
@Override
public boolean isOk()
{
return false;
}
}