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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 ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.getArray;
import static ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.getList;
import static ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.getMap;
import static ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.putMap;
import static ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.setArray;
import static ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.setList;
import static ch.systemsx.cisd.hdf5.HDF5CompoundMappingHints.getEnumReturnType;
import java.lang.reflect.Field;
import hdf.hdf5lib.exceptions.HDF5JavaException;
import ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.AccessType;
import ch.systemsx.cisd.hdf5.HDF5CompoundByteifyerFactory.IHDF5CompoundMemberBytifyerFactory;
import ch.systemsx.cisd.hdf5.HDF5CompoundMappingHints.EnumReturnType;
import ch.systemsx.cisd.hdf5.HDF5ValueObjectByteifyer.IFileAccessProvider;
/**
* A {@link HDF5CompoundByteifyerFactory.IHDF5CompoundMemberBytifyerFactory} for
* <code>HDF5EnumerationValue</code>.
*
* @author Bernd Rinn
*/
class HDF5CompoundMemberByteifyerEnumFactory implements IHDF5CompoundMemberBytifyerFactory
{
@Override
public boolean canHandle(Class<?> clazz, HDF5CompoundMemberInformation memberInfoOrNull)
{
if (memberInfoOrNull != null)
{
return ((clazz == HDF5EnumerationValue.class) || clazz.isEnum()
|| clazz == String.class || Number.class.isAssignableFrom(clazz) || (clazz
.isPrimitive() && clazz != boolean.class))
&& memberInfoOrNull.getType().getDataClass() == HDF5DataClass.ENUM;
} else
{
return (clazz == HDF5EnumerationValue.class) || clazz.isEnum();
}
}
@Override
public Class<?> tryGetOverrideJavaType(HDF5DataClass dataClass, int rank, int elementSize,
HDF5DataTypeVariant typeVariantOrNull)
{
return null;
}
@Override
public HDF5MemberByteifyer createBytifyer(final AccessType accessType, final Field fieldOrNull,
final HDF5CompoundMemberMapping member,
final HDF5CompoundMemberInformation compoundMemberInfoOrNull,
HDF5EnumerationType compoundMemberInfoEnumTypeOrNull, final Class<?> memberClazz,
final int index, final int offset, int memOffset, final IFileAccessProvider fileInfoProvider)
{
final String memberName = member.getMemberName();
final HDF5EnumerationType enumTypeOrNull =
member.tryGetEnumerationType() != null ? member.tryGetEnumerationType()
: compoundMemberInfoEnumTypeOrNull;
if (enumTypeOrNull == null)
{
throw new HDF5JavaException("Enumeration type for member '" + memberName
+ "' not known for member byteifyer.");
}
switch (accessType)
{
case FIELD:
return createByteifyerForField(fieldOrNull, memberName, offset, memOffset,
enumTypeOrNull, member.tryGetTypeVariant(), getEnumReturnTypeFromField(fieldOrNull.getType()));
case MAP:
return createByteifyerForMap(memberName, offset, memOffset, enumTypeOrNull,
member.tryGetTypeVariant(), getEnumReturnType(member));
case LIST:
return createByteifyerForList(memberName, index, offset, memOffset, enumTypeOrNull,
member.tryGetTypeVariant(), getEnumReturnType(member));
case ARRAY:
return createByteifyerForArray(memberName, index, offset, memOffset,
enumTypeOrNull, member.tryGetTypeVariant(), getEnumReturnType(member));
default:
throw new Error("Unknown access type");
}
}
/**
* Returns the desired enumeration return type.
*/
static EnumReturnType getEnumReturnTypeFromField(Class<?> type)
{
final Class<?> clazz = type.isArray() ? type.getComponentType() : type;
if (Number.class.isAssignableFrom(clazz) || (clazz.isPrimitive() && clazz != boolean.class))
{
return EnumReturnType.ORDINAL;
} else if (String.class == clazz)
{
return EnumReturnType.STRING;
} else if (clazz.isEnum())
{
return EnumReturnType.JAVAENUMERATION;
}
{
return EnumReturnType.HDF5ENUMERATIONVALUE;
}
}
private HDF5MemberByteifyer createByteifyerForField(final Field field, final String memberName,
final int offset, int memOffset, final HDF5EnumerationType enumType,
final HDF5DataTypeVariant typeVariant, final EnumReturnType enumReturnType)
{
ReflectionUtils.ensureAccessible(field);
return new HDF5MemberByteifyer(field, memberName, enumType.getStorageForm()
.getStorageSize(), offset, memOffset, false, typeVariant)
{
@Override
int getElementSize()
{
return enumType.getStorageForm().getStorageSize();
}
@Override
protected long getMemberStorageTypeId()
{
return enumType.getStorageTypeId();
}
@Override
protected long getMemberNativeTypeId()
{
return enumType.getNativeTypeId();
}
@Override
public byte[] byteify(long compoundDataTypeId, Object obj)
throws IllegalAccessException
{
return getEnum(obj).toStorageForm();
}
@Override
public void setFromByteArray(long compoundDataTypeId, Object obj, byte[] byteArr,
int arrayOffset) throws IllegalAccessException
{
final Object enumValue =
getEnumValue(enumType, byteArr, arrayOffset + offsetInMemory,
enumReturnType, field);
field.set(obj, enumValue);
}
private HDF5EnumerationValue getEnum(Object obj) throws IllegalAccessException,
IllegalArgumentException
{
assert obj != null;
final Object enumObj = field.get(obj);
if (enumObj instanceof HDF5EnumerationValue)
{
return (HDF5EnumerationValue) enumObj;
} else if (enumObj instanceof Number)
{
return new HDF5EnumerationValue(enumType, ((Number) enumObj).intValue());
} else
{
return new HDF5EnumerationValue(enumType, enumObj.toString());
}
}
@Override
HDF5EnumerationType tryGetEnumType()
{
return enumType;
}
};
}
private HDF5MemberByteifyer createByteifyerForMap(final String memberName, final int offset,
int memOffset, final HDF5EnumerationType enumType, final HDF5DataTypeVariant typeVariant,
final HDF5CompoundMappingHints.EnumReturnType enumReturnType)
{
return new HDF5MemberByteifyer(null, memberName,
enumType.getStorageForm().getStorageSize(), offset, memOffset, false,
typeVariant)
{
@Override
int getElementSize()
{
return enumType.getStorageForm().getStorageSize();
}
@Override
protected long getMemberStorageTypeId()
{
return enumType.getStorageTypeId();
}
@Override
protected long getMemberNativeTypeId()
{
return enumType.getNativeTypeId();
}
@Override
public byte[] byteify(long compoundDataTypeId, Object obj)
throws IllegalAccessException
{
return getEnum(obj).toStorageForm();
}
@Override
public void setFromByteArray(long compoundDataTypeId, Object obj, byte[] byteArr,
int arrayOffset) throws IllegalAccessException
{
final Object enumValue =
getEnumValue(enumType, byteArr, arrayOffset + offsetInMemory,
enumReturnType, null);
putMap(obj, memberName, enumValue);
}
private HDF5EnumerationValue getEnum(Object obj) throws IllegalAccessException,
IllegalArgumentException
{
assert obj != null;
final Object enumObj = getMap(obj, memberName);
if (enumObj instanceof HDF5EnumerationValue)
{
return (HDF5EnumerationValue) enumObj;
} else if (enumObj instanceof Number)
{
return new HDF5EnumerationValue(enumType, ((Number) enumObj).intValue());
} else
{
return new HDF5EnumerationValue(enumType, enumObj.toString());
}
}
@Override
HDF5EnumerationType tryGetEnumType()
{
return enumType;
}
};
}
private HDF5MemberByteifyer createByteifyerForList(final String memberName, final int index,
final int offset, int memOffset, final HDF5EnumerationType enumType,
final HDF5DataTypeVariant typeVariant, final HDF5CompoundMappingHints.EnumReturnType enumReturnType)
{
return new HDF5MemberByteifyer(null, memberName,
enumType.getStorageForm().getStorageSize(), offset, memOffset, false,
typeVariant)
{
@Override
int getElementSize()
{
return enumType.getStorageForm().getStorageSize();
}
@Override
protected long getMemberStorageTypeId()
{
return enumType.getStorageTypeId();
}
@Override
protected long getMemberNativeTypeId()
{
return enumType.getNativeTypeId();
}
@Override
public byte[] byteify(long compoundDataTypeId, Object obj)
throws IllegalAccessException
{
return getEnum(obj).toStorageForm();
}
@Override
public void setFromByteArray(long compoundDataTypeId, Object obj, byte[] byteArr,
int arrayOffset) throws IllegalAccessException
{
final Object enumValue =
getEnumValue(enumType, byteArr, arrayOffset + offsetInMemory,
enumReturnType, null);
setList(obj, index, enumValue);
}
private HDF5EnumerationValue getEnum(Object obj) throws IllegalAccessException,
IllegalArgumentException
{
assert obj != null;
final Object enumObj = getList(obj, index);
if (enumObj instanceof HDF5EnumerationValue)
{
return (HDF5EnumerationValue) enumObj;
} else if (enumObj instanceof Number)
{
return new HDF5EnumerationValue(enumType, ((Number) enumObj).intValue());
} else
{
return new HDF5EnumerationValue(enumType, enumObj.toString());
}
}
@Override
HDF5EnumerationType tryGetEnumType()
{
return enumType;
}
};
}
private HDF5MemberByteifyer createByteifyerForArray(final String memberName, final int index,
final int offset, int memOffset, final HDF5EnumerationType enumType,
final HDF5DataTypeVariant typeVariant, final HDF5CompoundMappingHints.EnumReturnType enumReturnType)
{
return new HDF5MemberByteifyer(null, memberName,
enumType.getStorageForm().getStorageSize(), offset, memOffset, false,
typeVariant)
{
@Override
int getElementSize()
{
return enumType.getStorageForm().getStorageSize();
}
@Override
protected long getMemberStorageTypeId()
{
return enumType.getStorageTypeId();
}
@Override
protected long getMemberNativeTypeId()
{
return enumType.getNativeTypeId();
}
@Override
public byte[] byteify(long compoundDataTypeId, Object obj)
throws IllegalAccessException
{
return getEnum(obj).toStorageForm();
}
@Override
public void setFromByteArray(long compoundDataTypeId, Object obj, byte[] byteArr,
int arrayOffset) throws IllegalAccessException
{
final Object enumValue =
getEnumValue(enumType, byteArr, arrayOffset + offsetInMemory,
enumReturnType, null);
setArray(obj, index, enumValue);
}
private HDF5EnumerationValue getEnum(Object obj) throws IllegalAccessException,
IllegalArgumentException
{
assert obj != null;
final Object enumObj = getArray(obj, index);
if (enumObj instanceof HDF5EnumerationValue)
{
return (HDF5EnumerationValue) enumObj;
} else if (enumObj instanceof Number)
{
return new HDF5EnumerationValue(enumType, ((Number) enumObj).intValue());
} else
{
return new HDF5EnumerationValue(enumType, enumObj.toString());
}
}
@Override
HDF5EnumerationType tryGetEnumType()
{
return enumType;
}
};
}
@SuppressWarnings(
{ "rawtypes", "unchecked" })
static Object getEnumValue(final HDF5EnumerationType enumType, byte[] byteArr, int arrayOffset,
final HDF5CompoundMappingHints.EnumReturnType enumReturnType, Field fieldOrNull)
{
switch (enumReturnType)
{
case HDF5ENUMERATIONVALUE:
return enumType.createFromStorageForm(byteArr, arrayOffset);
case STRING:
return enumType.createStringFromStorageForm(byteArr, arrayOffset);
case ORDINAL:
return enumType.getOrdinalFromStorageForm(byteArr, arrayOffset);
case JAVAENUMERATION:
{
if (fieldOrNull == null)
{
throw new HDF5JavaException(
"JAVAENUMERATIONTYPE only available with access type FIELD");
}
final String value = enumType.createStringFromStorageForm(byteArr, arrayOffset);
final Class<Enum> enumClass = (Class<Enum>) fieldOrNull.getType();
return Enum.valueOf(enumClass, value);
}
}
throw new Error("Unknown EnumReturnType " + enumReturnType);
}
}
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