| /******************************************************************************* |
| * 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 281046 - initial API and implementation |
| * Mukul Gandhi - bug 280798 - PsychoPath support for JDK 1.4 |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal.types; |
| |
| import org.apache.xerces.impl.dv.util.Base64; |
| import org.apache.xerces.impl.dv.util.HexBin; |
| import org.eclipse.wst.xml.xpath2.api.DynamicContext; |
| import org.eclipse.wst.xml.xpath2.api.ResultBuffer; |
| import org.eclipse.wst.xml.xpath2.api.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.api.typesystem.TypeDefinition; |
| import org.eclipse.wst.xml.xpath2.processor.DynamicError; |
| import org.eclipse.wst.xml.xpath2.processor.internal.function.CmpEq; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.builtin.BuiltinTypeLibrary; |
| |
| /** |
| * A representation of the base64Binary datatype |
| */ |
| public class XSBase64Binary extends CtrType implements CmpEq { |
| |
| private static final String XS_BASE64_BINARY = "xs:base64Binary"; |
| private String _value; |
| |
| /** |
| * Initialises using the supplied String |
| * |
| * @param x |
| * The String to initialise to |
| */ |
| public XSBase64Binary(String x) { |
| _value = x; |
| } |
| |
| /** |
| * Initialises to null |
| */ |
| public XSBase64Binary() { |
| this(null); |
| } |
| |
| /** |
| * Retrieves the datatype's full pathname |
| * |
| * @return "xs:base64Binary" which is the datatype's full pathname |
| */ |
| public String string_type() { |
| return XS_BASE64_BINARY; |
| } |
| |
| /** |
| * Retrieves the datatype's name |
| * |
| * @return "base64Binary" which is the datatype's name |
| */ |
| public String type_name() { |
| return "base64Binary"; |
| } |
| |
| /** |
| * Retrieves a String representation of the base64Binary stored. This method is |
| * functionally identical to value() |
| * |
| * @return The base64Binary stored |
| */ |
| public String getStringValue() { |
| return _value; |
| } |
| |
| /** |
| * Retrieves a String representation of the base64Binary stored. This method is |
| * functionally identical to string_value() |
| * |
| * @return The base64Binary stored |
| */ |
| public String value() { |
| return _value; |
| } |
| |
| /** |
| * Creates a new ResultSequence consisting of the base64Binary value |
| * |
| * @param arg |
| * The ResultSequence from which to construct base64Binary value |
| * @return New ResultSequence representing base64Binary value |
| * @throws DynamicError |
| */ |
| public ResultSequence constructor(ResultSequence arg) throws DynamicError { |
| |
| if (arg.empty()) |
| return ResultBuffer.EMPTY; |
| |
| AnyAtomicType aat = (AnyAtomicType) arg.first(); |
| if (aat instanceof NumericType || aat instanceof XSDuration || |
| aat instanceof CalendarType || aat instanceof XSBoolean || |
| aat instanceof XSAnyURI) { |
| throw DynamicError.invalidType(); |
| } |
| |
| if (!isCastable(aat)) { |
| throw DynamicError.cant_cast(null); |
| } |
| |
| String str_value = aat.getStringValue(); |
| |
| byte[] decodedValue = Base64.decode(str_value); |
| |
| if (aat instanceof XSHexBinary) { |
| decodedValue = HexBin.decode(str_value); |
| decodedValue = Base64.encode(decodedValue).getBytes(); |
| } else { |
| decodedValue = str_value.getBytes(); |
| } |
| if (decodedValue != null) { |
| return new XSBase64Binary(new String(decodedValue)); |
| } |
| else { |
| // invalid base64 string |
| throw DynamicError.throw_type_error(); |
| } |
| } |
| |
| private boolean isCastable(AnyAtomicType aat) { |
| if (aat instanceof XSString || aat instanceof XSUntypedAtomic) { |
| return true; |
| } |
| |
| if (aat instanceof XSBase64Binary || aat instanceof XSHexBinary) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Equality comparison between this and the supplied representation which |
| * must be of type base64Binary |
| * |
| * @param arg |
| * The representation to compare with |
| * @return True if the two representation are same. False otherwise. |
| * |
| * @throws DynamicError |
| */ |
| public boolean eq(AnyType arg, DynamicContext dynamicContext) throws DynamicError { |
| String valToCompare = arg.getStringValue(); |
| |
| byte[] value1 = Base64.decode(_value); |
| byte[] value2 = Base64.decode(valToCompare); |
| if (value2 == null) { |
| return false; |
| } |
| |
| int len = value1.length; |
| if (len != value2.length) { |
| return false; |
| } |
| |
| for (int i = 0; i < len; i++) { |
| if (value1[i] != value2[i]) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| public TypeDefinition getTypeDefinition() { |
| return BuiltinTypeLibrary.XS_BASE64BINARY; |
| } |
| |
| public Object getNativeValue() { |
| return Base64.decode(_value); |
| } |
| } |