| /******************************************************************************* |
| * Copyright (c) 2009 Mukul Gandhi, and others |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Mukul Gandhi - bug 277650 - Initial API and implementation, of xs:unsignedByte |
| * data type. |
| * David Carver (STAR) - bug 262765 - fixed abs value tests. |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal.types; |
| |
| import java.math.BigInteger; |
| |
| import org.eclipse.wst.xml.xpath2.processor.DynamicError; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequenceFactory; |
| |
| public class XSUnsignedByte extends XSUnsignedShort { |
| |
| private static final String XS_UNSIGNED_BYTE = "xs:unsignedByte"; |
| |
| /** |
| * Initializes a representation of 0 |
| */ |
| public XSUnsignedByte() { |
| this(BigInteger.valueOf(0)); |
| } |
| |
| /** |
| * Initializes a representation of the supplied unsignedByte value |
| * |
| * @param x |
| * unsignedByte to be stored |
| */ |
| public XSUnsignedByte(BigInteger x) { |
| super(x); |
| } |
| |
| /** |
| * Retrieves the datatype's full pathname |
| * |
| * @return "xs:unsignedByte" which is the datatype's full pathname |
| */ |
| @Override |
| public String string_type() { |
| return XS_UNSIGNED_BYTE; |
| } |
| |
| /** |
| * Retrieves the datatype's name |
| * |
| * @return "unsignedByte" which is the datatype's name |
| */ |
| @Override |
| public String type_name() { |
| return "unsignedByte"; |
| } |
| |
| /** |
| * Creates a new ResultSequence consisting of the extractable unsignedByte |
| * in the supplied ResultSequence |
| * |
| * @param arg |
| * The ResultSequence from which the unsignedByte is to be extracted |
| * @return New ResultSequence consisting of the 'unsignedByte' supplied |
| * @throws DynamicError |
| */ |
| @Override |
| public ResultSequence constructor(ResultSequence arg) throws DynamicError { |
| ResultSequence rs = ResultSequenceFactory.create_new(); |
| |
| if (arg.empty()) |
| return rs; |
| |
| // the function conversion rules apply here too. Get the argument |
| // and convert it's string value to a unsignedByte. |
| AnyType aat = arg.first(); |
| |
| try { |
| BigInteger bigInt = new BigInteger(aat.string_value()); |
| |
| // doing the range checking |
| // min value is 0 |
| // max value is 255 |
| BigInteger min = BigInteger.valueOf(0); |
| BigInteger max = BigInteger.valueOf(255L); |
| |
| if (bigInt.compareTo(min) < 0 || bigInt.compareTo(max) > 0) { |
| // invalid input |
| throw DynamicError.cant_cast(null); |
| } |
| |
| rs.add(new XSUnsignedByte(bigInt)); |
| |
| return rs; |
| } catch (NumberFormatException e) { |
| throw DynamicError.cant_cast(null); |
| } |
| |
| } |
| |
| } |