@Override
public boolean equals(Object o) {
if (!(o instanceof Node)) {
return false;
}
if (o == this) {
return true;
}
Node other = (Node) o;
if ((operator == null) != (other.getOperator() == null)) {
return false;
}
if (operator != null && !other.getOperator().equals(operator)) {
return false;
}
if (internalNodes.size() != other.getInternalNodes().size()) {
return false;
}
for (int i = 0; i < internalNodes.size(); i++) {
if (!internalNodes.get(i).equals(other.getInternalNodes().get(i))) {
return false;
}
}
return true;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append('#');
builder.append(operator);
if (parameters.containsKey("default")) {
String value = parameters.get("default");
builder.append(':');
builder.append(escapeAsNecessary(value));
}
Map<String, List<Value>> parameterMap = parameters.value().map();
if (parameterMap != null) {
for (String key : parameterMap.keySet()) {
if (key.equals("default")) {
continue;
}
String value = parameterMap.get(key).get(0).toString();
builder.append(':');
builder.append(escapeAsNecessary(key));
builder.append('=');
builder.append(escapeAsNecessary(value));
}
}
if (internalNodes.size() == 0) {
builder.append("()");
} else {
builder.append("( ");
for (Node child : internalNodes) {
builder.append(child.toString());
builder.append(' ');
}
builder.append(")");
}
return builder.toString();
}
public StructuredIterator createIterator(Node node) throws Exception {
ArrayList<StructuredIterator> internalIterators = new ArrayList<StructuredIterator>();
for (Node internalNode : node.getInternalNodes()) {
StructuredIterator internalIterator = createIterator(internalNode);
internalIterators.add(internalIterator);
}
StructuredIterator iterator = index.getIterator(node);
if (iterator == null) {
iterator = featureFactory.getIterator(node, internalIterators);
}
return iterator;
}