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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;
import static hdf.hdf5lib.HDF5Constants.H5L_TYPE_EXTERNAL;
import static hdf.hdf5lib.HDF5Constants.H5L_TYPE_SOFT;
import static hdf.hdf5lib.HDF5Constants.H5O_TYPE_DATASET;
import static hdf.hdf5lib.HDF5Constants.H5O_TYPE_GROUP;
import static hdf.hdf5lib.HDF5Constants.H5O_TYPE_NAMED_DATATYPE;
import static hdf.hdf5lib.HDF5Constants.H5O_TYPE_NTYPES;
import hdf.hdf5lib.exceptions.HDF5JavaException;
/**
* The common super class of {@link HDF5LinkInformation} and {@link HDF5ObjectInformation}.
*
* @author Bernd Rinn
*/
class HDF5CommonInformation
{
protected final String path;
protected final HDF5ObjectType type;
static HDF5ObjectType objectTypeIdToObjectType(final int objectTypeId)
{
if (-1 == objectTypeId)
{
return HDF5ObjectType.NONEXISTENT;
} else if (H5O_TYPE_GROUP == objectTypeId)
{
return HDF5ObjectType.GROUP;
} else if (H5O_TYPE_DATASET == objectTypeId)
{
return HDF5ObjectType.DATASET;
} else if (H5O_TYPE_NAMED_DATATYPE == objectTypeId)
{
return HDF5ObjectType.DATATYPE;
} else if (objectTypeId >= H5O_TYPE_NTYPES)
{
final int linkTypeId = objectTypeId - H5O_TYPE_NTYPES;
if (linkTypeId == H5L_TYPE_SOFT)
{
return HDF5ObjectType.SOFT_LINK;
} else if (linkTypeId == H5L_TYPE_EXTERNAL)
{
return HDF5ObjectType.EXTERNAL_LINK;
}
}
return HDF5ObjectType.OTHER;
}
HDF5CommonInformation(String path, HDF5ObjectType type)
{
assert path != null;
assert type != null;
this.path = path;
this.type = type;
}
/**
* @throws HDF5JavaException If the link does not exist.
*/
public void checkExists() throws HDF5JavaException
{
if (exists() == false)
{
throw new HDF5JavaException("Link '" + getPath() + "' does not exist.");
}
}
/**
* Returns the path of this link in the HDF5 file.
*/
public String getPath()
{
return path;
}
/**
* Returns the parent of the path of this link the HDF5 file. If this link corresponds to the
* root, then this method will return the root ("/") itself.
*/
public String getParentPath()
{
final int lastSlashIndex = path.lastIndexOf('/');
if (lastSlashIndex <= 0)
{
return "/";
} else
{
return path.substring(0, lastSlashIndex);
}
}
/**
* Returns the name of this link in the HDF5 file (the path without the parent).
*/
public String getName()
{
return path.substring(path.lastIndexOf('/') + 1);
}
/**
* Returns the type of this link.
*/
public HDF5ObjectType getType()
{
return type;
}
/**
* Returns <code>true</code>, if the link exists.
*/
public boolean exists()
{
return HDF5ObjectType.exists(type);
}
/**
* Returns <code>true</code>, if the link is a group.
*/
public boolean isGroup()
{
return HDF5ObjectType.isGroup(type);
}
/**
* Returns <code>true</code>, if the link is a data set.
*/
public boolean isDataSet()
{
return HDF5ObjectType.isDataSet(type);
}
/**
* Returns <code>true</code>, if the link is a data type.
*/
public boolean isDataType()
{
return HDF5ObjectType.isDataType(type);
}
}
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