/*******************************************************************************
* Copyright 2013 SAP AG
*
* 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 com.sap.core.odata.core.edm;
import com.sap.core.odata.api.edm.EdmFacets;
import com.sap.core.odata.api.edm.EdmLiteralKind;
import com.sap.core.odata.api.edm.EdmSimpleType;
import com.sap.core.odata.api.edm.EdmSimpleTypeException;
/**
* Implementation of the EDM simple type Byte.
* @author SAP AG
*/
public class EdmByte extends AbstractSimpleType {
private static final EdmByte instance = new EdmByte();
public static EdmByte getInstance() {
return instance;
}
@Override
public boolean isCompatible(final EdmSimpleType simpleType) {
return simpleType instanceof Bit
|| simpleType instanceof Uint7
|| simpleType instanceof EdmByte;
}
@Override
public Class<?> getDefaultType() {
return Short.class;
}
@Override
protected <T> T internalValueOfString(final String value, final EdmLiteralKind literalKind, final EdmFacets facets, final Class<T> returnType) throws EdmSimpleTypeException {
Short valueShort;
try {
valueShort = Short.parseShort(value);
} catch (final NumberFormatException e) {
throw new EdmSimpleTypeException(EdmSimpleTypeException.LITERAL_ILLEGAL_CONTENT.addContent(value), e);
}
if (valueShort < 0 || valueShort > 255) {
throw new EdmSimpleTypeException(EdmSimpleTypeException.LITERAL_ILLEGAL_CONTENT.addContent(value));
}
if (returnType.isAssignableFrom(Short.class)) {
return returnType.cast(valueShort);
} else if (returnType.isAssignableFrom(Byte.class)) {
if (valueShort <= Byte.MAX_VALUE) {
return returnType.cast(valueShort.byteValue());
} else {
throw new EdmSimpleTypeException(EdmSimpleTypeException.LITERAL_UNCONVERTIBLE_TO_VALUE_TYPE.addContent(value, returnType));
}
} else if (returnType.isAssignableFrom(Integer.class)) {
return returnType.cast(valueShort.intValue());
} else if (returnType.isAssignableFrom(Long.class)) {
return returnType.cast(valueShort.longValue());
} else {
throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_TYPE_NOT_SUPPORTED.addContent(returnType));
}
}
@Override
protected <T> String internalValueToString(final T value, final EdmLiteralKind literalKind, final EdmFacets facets) throws EdmSimpleTypeException {
if (value instanceof Byte || value instanceof Short || value instanceof Integer || value instanceof Long) {
if (((Number) value).longValue() >= 0 && ((Number) value).longValue() <= 255) {
return value.toString();
} else {
throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_ILLEGAL_CONTENT.addContent(value));
}
} else {
throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_TYPE_NOT_SUPPORTED.addContent(value.getClass()));
}
}
}