org.apache.xml.utils.XMLChar Java Examples

/**
 * Removes invalid XML 1.0 Unicode characters
 * @param text The String to clean
 * @return The resulting String
 */
public static String cleanInvalidXmlChars(String text) {
    if (StringUtils.isBlank(text)) {
        return text;
    } else {
        StringBuilder sb = new StringBuilder();
        boolean strippedCharacter = false;
        for (int i = 0; i < text.length(); i++) {
            char c = text.charAt(i);
            if (XMLChar.isValid(c)) {
                sb.append(c);
            } else {
                strippedCharacter = true;
            }
        }

        if (strippedCharacter) {
            return sb.toString();
        } else {
            return text;
        }
    }
}
 

/**
 * Checks, whether string contains invalid xml chars
 * @param string to check
 * @return true if there're xml invalid chars
 */
public static Boolean containsInvalidXmlChars2(String string) {
    for (int i = 0; i < string.length(); i++) {
        if (!XMLChar.isValid(string.charAt(i))) {
            return Boolean.TRUE;
        }
    }
    return Boolean.FALSE;
}
 

/**
 * This method set the xlink:label
 * 
 * @param label
 *            the xlink:label
 */
public final void setXLinkLabel(String label) {
    if (label != null && !XMLChar.isValidNCName(label)) {
        throw new MCRException("xlink:label is not a valid NCName: " + label);
    }
    this.label = label;
}
 

/**
 * Validates this MCRMetaLink. This method throws an exception if:
 * <ul>
 * <li>the subtag is not null or empty</li>
 * <li>the xlink:type not "locator" or "arc"</li>
 * <li>the from or to are not valid</li>
 * </ul>
 * 
 * @throws MCRException the MCRMetaLink is invalid
 */
public void validate() throws MCRException {
    super.validate();
    if (label != null && label.length() > 0) {
        if (!XMLChar.isValidNCName(label)) {
            throw new MCRException(getSubTag() + ": label is no valid NCName:" + label);
        }
    }
    if (linktype == null) {
        throw new MCRException(getSubTag() + ": linktype is null");
    }
    if (!linktype.equals("locator") && !linktype.equals("arc")) {
        throw new MCRException(getSubTag() + ": linktype is unsupported: " + linktype);
    }
    if (linktype.equals("arc")) {
        if (from == null || from.length() == 0) {
            throw new MCRException(getSubTag() + ": from is null or empty");
        } else if (!XMLChar.isValidNCName(from)) {
            throw new MCRException(getSubTag() + ": from is no valid NCName:" + from);
        }

        if (to == null || to.length() == 0) {
            throw new MCRException(getSubTag() + ": to is null or empty");
        } else if (!XMLChar.isValidNCName(to)) {
            throw new MCRException(getSubTag() + ": to is no valid NCName:" + to);
        }
    }
    if (linktype.equals("locator")) {
        if (href == null || href.length() == 0) {
            throw new MCRException(getSubTag() + ": href is null or empty");
        }
    }
}
 

/**
 * Converts a string to valid NCName.
 *
 * @see <a href="https://www.w3.org/TR/1999/WD-xmlschema-2-19990924/#NCName">w3.org</a>
 *
 * @param name the string to convert
 * @return a string which is a valid NCName
 * @throws IllegalArgumentException if there is no way to convert the string to an NCName
 */
public static String toNCName(String name) {
    while (name.length() > 0 && !XMLChar.isNameStart(name.charAt(0))) {
        name = name.substring(1);
    }
    name = toNCNameSecondPart(name);
    if (name.length() == 0) {
        throw new IllegalArgumentException("Unable to convert '" + name + "' to valid NCName.");
    }
    return name;
}
 

/**
 * Checks a string to see if any characters are invalid for inclusion in 
 * XML strings.
 * @param value     The string to check.
 * @return  A parse result of success if the string uses only valid characters.
 */
protected ParseResult checkForInvalidXMLChars(String value)
{
	for (char character : value.toCharArray())
	{
		if (!XMLChar.isValid(character))
		{
			return new ParseResult.Fail(
				"Invalid XML character 0x" + Integer.toString(character, 16) + " in " + value);
		}
	}

	return ParseResult.SUCCESS;
}
 

/**
 * Checks a string to see if any characters are invalid for inclusion in 
 * XML strings.
 * @param value     The string to check.
 * @return  A parse result of success if the string uses only valid characters.
 */
protected ParseResult checkForInvalidXMLChars(String value)
{
	for (char character : value.toCharArray())
	{
		if (!XMLChar.isValid(character))
		{
			return new ParseResult.Fail(
				"Invalid XML character 0x" + Integer.toString(character, 16) + " in " + value);
		}
	}

	return ParseResult.SUCCESS;
}
 

/**
 * Checks, whether string contains invalid xml chars
 * @param string to check
 * @return true if there're xml invalid chars
 */
public static Boolean containsInvalidXmlChars2(String string) {
    for (int i = 0; i < string.length(); i++) {
        if (!XMLChar.isValid(string.charAt(i))) {
            return Boolean.TRUE;
        }
    }
    return Boolean.FALSE;
}