private Entry _sibling(Entry current, N name) throws StaxNavException {
if (current != null) {
Entry element = current;
while (true) {
Entry next = element.next();
if (next != null && next.getElement().getDepth() >= current.getElement().getDepth()) {
if (next.getElement().getDepth() == current.getElement().getDepth()) {
if (name == null) {
current = next;
return current;
} else {
N siblingName = naming.getName(next.getElement().getName());
if (name.equals(siblingName)) {
current = next;
return current;
} else {
element = next;
}
}
} else {
element = next;
}
} else {
break;
}
}
}
return null;
}
private Entry _current(Entry current, N name) throws StaxNavException {
if (current != null) {
if (name == null || name.equals(naming.getName(current.getElement().getName()))) {
return current;
}
}
return null;
}
public boolean find(N name) throws StaxNavException {
if (name == null) {
throw new NullPointerException("No null name accepted");
}
if (name.equals(naming.getName(current.getElement().getName()))) {
return true;
} else {
return navigate(Axis.FOLLOWING, name);
}
}
private Entry _next(Entry current, N name) throws StaxNavException {
if (current != null) {
Entry next = current.next(depth);
if (next != null
&& (name == null || name.equals(naming.getName(next.getElement().getName())))) {
current = next;
return current;
}
}
return null;
}
public N next(Set<N> names) throws StaxNavException {
if (names == null) {
throw new NullPointerException();
}
Entry next = current.next(depth);
if (next != null) {
N name = naming.getName(next.getElement().getName());
if (names.contains(name)) {
current = next;
return name;
}
}
return null;
}
private Entry _following(Entry current, N name) throws StaxNavException {
if (name == null) {
throw new UnsupportedOperationException("todo");
}
if (current != null) {
Entry entry = current.next();
while (entry != null) {
N findName = naming.getName(entry.getElement().getName());
if (name.equals(findName)) {
current = entry;
return current;
} else {
entry = entry.next();
}
}
}
return null;
}
private int _descendant(N name) throws StaxNavException {
Entry element = current;
while (true) {
Entry next = element.next();
if (next != null && next.getElement().getDepth() >= current.getElement().getDepth()) {
N descendantName = naming.getName(next.getElement().getName());
if (name.equals(descendantName)) {
int diff = next.getElement().getDepth() - current.getElement().getDepth();
current = next;
return diff;
} else {
element = next;
}
} else {
break;
}
}
return -1;
}
protected <N> N getName(Naming<N> naming) {
return naming.getName(getName());
}