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/*
* Copyright 2007 - 2018 ETH Zuerich, CISD and SIS.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ch.systemsx.cisd.hdf5.h5ar;
import java.util.List;
import hdf.hdf5lib.exceptions.HDF5Exception;
import ch.systemsx.cisd.hdf5.IHDF5Writer;
/**
* A class to delete paths from an <code>h5ar</code> archives.
*
* @author Bernd Rinn
*/
class HDF5ArchiveDeleter
{
private final IHDF5Writer hdf5Writer;
private final IDirectoryIndexProvider indexProvider;
private final IdCache idCache;
public HDF5ArchiveDeleter(IHDF5Writer hdf5Writer, IDirectoryIndexProvider indexProvider, IdCache idCache)
{
this.hdf5Writer = hdf5Writer;
this.indexProvider = indexProvider;
this.idCache = idCache;
}
public HDF5ArchiveDeleter delete(List<String> hdf5ObjectPaths, IArchiveEntryVisitor entryVisitorOrNull)
{
for (String path : hdf5ObjectPaths)
{
final String normalizedPath = Utils.normalizePath(path);
final String group = Utils.getParentPath(normalizedPath);
final IDirectoryIndex index = indexProvider.get(group, false);
try
{
final String name = Utils.getName(normalizedPath);
LinkRecord link = index.tryGetLink(name);
if (link == null)
{
link = LinkRecord.tryReadFromArchive(hdf5Writer, normalizedPath);
}
if (link != null)
{
hdf5Writer.delete(normalizedPath);
index.remove(name);
if (entryVisitorOrNull != null)
{
final ArchiveEntry entry = new ArchiveEntry(group, normalizedPath, link, idCache);
entryVisitorOrNull.visit(entry);
}
}
} catch (HDF5Exception ex)
{
indexProvider.getErrorStrategy().dealWithError(
new DeleteFromArchiveException(path, ex));
}
}
return this;
}
}
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