public static String saxElementToDebugString(String uri, String qName, Attributes attributes) {
// Open start tag
final StringBuilder sb = new StringBuilder("<");
sb.append(qName);
final Set<String> declaredPrefixes = new HashSet<String>();
mapPrefixIfNeeded(declaredPrefixes, uri, qName, sb);
// Attributes if any
for (int i = 0; i < attributes.getLength(); i++) {
mapPrefixIfNeeded(declaredPrefixes, attributes.getURI(i), attributes.getQName(i), sb);
sb.append(' ');
sb.append(attributes.getQName(i));
sb.append("=\"");
sb.append(attributes.getValue(i));
sb.append('\"');
}
// Close start tag
sb.append('>');
// Content
sb.append("[...]");
// Close element with end tag
sb.append("</");
sb.append(qName);
sb.append('>');
return sb.toString();
}
/**
* @param attributes source attributes
* @return new AttributesImpl containing all attributes that were in src attributes and that were
* in the default name space.
*/
public static AttributesImpl getAttributesFromDefaultNamespace(final Attributes attributes) {
final AttributesImpl ret = new AttributesImpl();
final int size = attributes.getLength();
for (int i = 0; i < size; i++) {
final String ns = attributes.getURI(i);
if (!"".equals(ns)) continue;
final String lnam = attributes.getLocalName(i);
final String qnam = attributes.getQName(i);
final String typ = attributes.getType(i);
final String val = attributes.getValue(i);
ret.addAttribute(ns, lnam, qnam, typ, val);
}
return ret;
}
public static AttributesImpl removeAttribute(
Attributes attributes, String uri, String localname) {
final AttributesImpl newAttributes = new AttributesImpl();
for (int i = 0; i < attributes.getLength(); i++) {
final String attributeURI = attributes.getURI(i);
final String attributeValue = attributes.getValue(i);
final String attributeType = attributes.getType(i);
final String attributeQName = attributes.getQName(i);
final String attributeLocalname = attributes.getLocalName(i);
if (!uri.equals(attributeURI) || !localname.equals(attributeLocalname)) {
// Not a matched attribute
newAttributes.addAttribute(
attributeURI, attributeLocalname, attributeQName, attributeType, attributeValue);
}
}
return newAttributes;
}
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
digest.update((byte) ((ELEMENT_CODE >> 24) & 0xff));
digest.update((byte) ((ELEMENT_CODE >> 16) & 0xff));
digest.update((byte) ((ELEMENT_CODE >> 8) & 0xff));
digest.update((byte) (ELEMENT_CODE & 0xff));
addToCharBuff('{');
addToCharBuff(namespaceURI);
addToCharBuff('}');
addToCharBuff(localName);
updateWithCharBuf();
digest.update((byte) 0);
digest.update((byte) 0);
int attCount = atts.getLength();
digest.update((byte) ((attCount >> 24) & 0xff));
digest.update((byte) ((attCount >> 16) & 0xff));
digest.update((byte) ((attCount >> 8) & 0xff));
digest.update((byte) (attCount & 0xff));
for (int i = 0; i < attCount; i++) {
digest.update((byte) ((ATTRIBUTE_CODE >> 24) & 0xff));
digest.update((byte) ((ATTRIBUTE_CODE >> 16) & 0xff));
digest.update((byte) ((ATTRIBUTE_CODE >> 8) & 0xff));
digest.update((byte) (ATTRIBUTE_CODE & 0xff));
final String attURI = atts.getURI(i);
final String attNam = atts.getLocalName(i);
addToCharBuff('{');
addToCharBuff(attURI);
addToCharBuff('}');
addToCharBuff(attNam);
updateWithCharBuf();
digest.update((byte) 0);
digest.update((byte) 0);
final String val = atts.getValue(i);
updateWith(val);
}
}
public static AttributesImpl addOrReplaceAttribute(
Attributes attributes, String uri, String prefix, String localname, String value) {
final AttributesImpl newAttributes = new AttributesImpl();
boolean replaced = false;
for (int i = 0; i < attributes.getLength(); i++) {
final String attributeURI = attributes.getURI(i);
final String attributeValue = attributes.getValue(i);
final String attributeType = attributes.getType(i);
final String attributeQName = attributes.getQName(i);
final String attributeLocalname = attributes.getLocalName(i);
if (uri.equals(attributeURI) && localname.equals(attributeLocalname)) {
// Found existing attribute
replaced = true;
newAttributes.addAttribute(
uri,
localname,
XMLUtils.buildQName(prefix, localname),
ContentHandlerHelper.CDATA,
value);
} else {
// Not a matched attribute
newAttributes.addAttribute(
attributeURI, attributeLocalname, attributeQName, attributeType, attributeValue);
}
}
if (!replaced) {
// Attribute did not exist already so add it
newAttributes.addAttribute(
uri,
localname,
XMLUtils.buildQName(prefix, localname),
ContentHandlerHelper.CDATA,
value);
}
return newAttributes;
}
/**
* Append classes to existing attributes. This creates a new AttributesImpl object.
*
* @param attributes existing attributes
* @param newClasses new classes to append
* @return new attributes
*/
public static AttributesImpl appendToClassAttribute(Attributes attributes, String newClasses) {
final String oldClassAttribute = attributes.getValue("class");
final String newClassAttribute =
oldClassAttribute == null ? newClasses : oldClassAttribute + ' ' + newClasses;
return addOrReplaceAttribute(attributes, "", "", "class", newClassAttribute);
}