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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.instance.data;
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import org.jbind.xml.core.data.IAnyTypeData;
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import org.jbind.xml.core.data.IBase64Binary;
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import org.jbind.xml.core.data.IBase64BinaryData;
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import org.jbind.xml.msg.IConstraintViolations;
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import org.jbind.xml.msg.XmlException;
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import org.jbind.xml.msg.XmlMessages;
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/**
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* Base64 encoded data (cf. http://www.ietf.org/rfc/rfc2045.txt).
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*/
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public class Base64BinaryData extends AbstractSimpleData implements IBase64BinaryData {
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private IBase64Binary myValue;
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private static final int getInt(char aChar) {
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if ((aChar >= 'A') && (aChar <= 'Z')) {
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return aChar - 'A';
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}
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if ((aChar >= 'a') && (aChar <= 'z')) {
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return aChar - 'a' + 26;
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}
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if ((aChar >= '0') && (aChar <= '9')) {
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return aChar - '0' + 52;
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}
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if (aChar == '+') {
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return 62;
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}
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if (aChar == '/') {
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return 63;
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}
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if (aChar == '=') {
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return -1;
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}
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return -2;
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}
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protected void doAccept(String aString) throws XmlException {
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super.doAccept(aString);
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int strLength = aString.length();
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int maxNbBytes = (strLength * 3 / 4) + 1;
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byte[] array = new byte[maxNbBytes];
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int nbBytes = 0;
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for (int charIndex = 0; charIndex < strLength; ) {
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int chars = 0;
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int value = 0;
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do {
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char c = aString.charAt(charIndex++);
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int i = getInt(c);
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if (i == -1) {
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break;
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}
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if (i == -2) {
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continue;
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}
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value = (value << 6) | i;
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chars++;
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} while ((chars < 4) && (charIndex < strLength));
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if (chars == 1) {
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throw new XmlException(XmlMessages.truncatedBase64Encoding(getImpl_()));
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} else if (((chars == 2) && (!(aString.charAt(charIndex) == '=') || !(aString.charAt(charIndex - 1) == '='))) || ((chars == 3) && (!(aString.charAt(charIndex - 1) == '=')))) {
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throw new XmlException(XmlMessages.missingPaddingInBase64Encoding(getImpl_()));
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}
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int bytes = (chars == 4) ? 3 : ((chars == 3) ? 2 : ((chars == 2) ? 1 : 0));
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if (bytes == 1) {
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if (0 != (value & 0xF)) {
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throw new XmlException(XmlMessages.truncatedBase64Encoding(getImpl_()));
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}
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value = value >> 4;
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} else if (bytes == 2) {
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if (0 != (value & 0x3)) {
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throw new XmlException(XmlMessages.truncatedBase64Encoding(getImpl_()));
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}
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value = value >> 2;
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}
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for (int b = bytes; --b >= 0; ) {
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array[nbBytes + b] = (byte)(0xFF & value);
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value = value >> 8;
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}
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nbBytes += bytes;
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if (chars < 4) {
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break;
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}
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}
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byte[] a = new byte[nbBytes];
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System.arraycopy(array, 0, a, 0, nbBytes);
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myValue = new Base64Binary(a);
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}
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public IBase64Binary getBase64Binary() {
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return myValue;
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}
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public void setBase64Binary(IBase64Binary aNewValue) throws XmlException {
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IBase64Binary oldValue = myValue;
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myValue = aNewValue;
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IConstraintViolations violations = completeSimpleStorageAssignment_();
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if (!violations.isEmpty()) {
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myValue = oldValue;
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throw new XmlException(violations);
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}
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}
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public int getLength() {
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return myValue.getBytes().length;
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}
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public String getCanonicalForm_() {
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return myValue.toString();
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}
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public boolean simpleStorageValueEquals(IAnyTypeData aData) {
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return (aData instanceof IBase64BinaryData) && myValue.equals(((IBase64BinaryData)aData).getBase64Binary());
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}
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public int simpleStorageValueHashCode() {
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return myValue.hashCode();
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}
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public Object getSimpleStorageObject() {
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return myValue;
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}
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public void setSimpleStorageObject(Object aValue) {
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myValue = (IBase64Binary)aValue;
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}
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// public static void main(String[] anArgs) {
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// try {
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// Base64BinaryData bd = new Base64BinaryData();
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// for (int nbBytes = 0; nbBytes < 5; nbBytes++) {
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// byte[] bytes = new byte[nbBytes];
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// for (byte b = -128; true; b++) {
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// for (int i = 0; i < nbBytes; i++) bytes[i] = b;
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// Base64Binary binary = new Base64Binary(bytes);
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// String stringBytes = String.valueOf(binary);
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// bd.doAccept(stringBytes);
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// byte[] newBytes = bd.getBase64Binary().getBytes();
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// if (!Arrays.equals(bytes, newBytes)) {
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// Console.out.println("bytes: " + toString(bytes) + "; stringBytes: " + stringBytes + "; newBytes: " + toString(newBytes));
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// assert false;
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// }
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// if (b == 127) break;
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// }
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// }
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// } catch (XmlException e) {
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// e.printStackTrace();
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// }
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// }
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//
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//
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168
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// public static void main(String[] anArgs) {
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// String data = "Az9B";
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// try {
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// Base64BinaryData bd = new Base64BinaryData();
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// bd.doAccept(data);
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// byte[] ba = bd.getBase64Binary().getBytes();
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// String s = bd.getBase64Binary().toString();
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// assert data.equals(s);
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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// }
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//
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182
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0
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private static String toString(byte[] aBytes) {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < aBytes.length; i++) {
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sb.append(aBytes[i]).append((i < aBytes.length - 1) ? ", " : "");
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}
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return sb.toString();
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}
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}
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