org.xmlbeam.util.intern.duplex.SimpleNode Maven / Gradle / Ivy
/*
Copyright (c) 2005 W3C(r) (http://www.w3.org/) (MIT (http://www.lcs.mit.edu/),
INRIA (http://www.inria.fr/), Keio (http://www.keio.ac.jp/)),
All Rights Reserved.
See http://www.w3.org/Consortium/Legal/ipr-notice-20000612#Copyright.
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(http://www.w3.org/Consortium/Legal/ipr-notice-20000612#Legal_Disclaimer),
trademark
(http://www.w3.org/Consortium/Legal/ipr-notice-20000612#W3C_Trademarks),
document use
(http://www.w3.org/Consortium/Legal/copyright-documents-19990405),
and software licensing rules
(http://www.w3.org/Consortium/Legal/copyright-software-19980720)
apply.
*/
package org.xmlbeam.util.intern.duplex;
import java.util.List;
import org.xmlbeam.util.intern.DOMHelper;
class SimpleNode implements Node {
/**
* Sometimes it's useful to not process all steps.
*
* @author sven
*/
public interface StepListFilter {
/**
* @param children
* @return filtered list of child nodes.
*/
List filter(SimpleNode[] children);
};
private Node parent;
private SimpleNode[] children;
final int id;
private final XParser parser;
public int beginLine, beginColumn, endLine, endColumn;
public SimpleNode(final XParser p, final int i) {
id = i;
parser = p;
}
// Factory method
// public static Node jjtCreate(final XParser p, final int id) {
// return new SimpleNode(p, id);
// }
@Override
public void jjtOpen() {
beginLine = parser.token.beginLine;
beginColumn = parser.token.beginColumn;
}
@Override
public void jjtClose() {
endLine = parser.token.endLine;
endColumn = parser.token.endColumn;
}
@Override
public void jjtSetParent(final Node n) {
parent = n;
}
@Override
public Node jjtGetParent() {
return parent;
}
@Override
public void jjtAddChild(final Node n, final int i) {
if ((id == XParserTreeConstants.JJTNCNAME) && (((SimpleNode) n).id == XParserTreeConstants.JJTQNAME)) {
m_value = ((SimpleNode) n).m_value;
if (m_value.indexOf(':') >= 0) {
throw new PostParseException("Parse Error: NCName can not contain ':'!");
}
return;
}
// Don't expose the functionQName as a child of a QName!
else if ((id == XParserTreeConstants.JJTQNAME) && (((SimpleNode) n).id == XParserTreeConstants.JJTFUNCTIONQNAME)) {
m_value = ((SimpleNode) n).m_value;
return;
}
if (children == null) {
children = new SimpleNode[i + 1];
} else if (i >= children.length) {
SimpleNode c[] = new SimpleNode[i + 1];
System.arraycopy(children, 0, c, 0, children.length);
children = c;
}
children[i] = (SimpleNode) n;
}
@Override
public Node jjtGetChild(final int i) {
return children[i];
}
@Override
public int jjtGetNumChildren() {
return (children == null) ? 0 : children.length;
}
/** Accept the visitor. * */
@Override
public Object jjtAccept(final XParserVisitor visitor, final org.w3c.dom.Node data) {
return visitor.visit(this, data);
}
/*
* public List allChildrenAccept(final INodeEvaluationVisitor visitor, final
* org.w3c.dom.Node target) { org.w3c.dom.Node result = target; for (SimpleNode child :
* children) { result = ((List) child.jjtAccept(visitor, result)).get(0); }
* return DOMHelper.asList(result); }
*/
/*
* public org.w3c.dom.Node allButNotLastChildrenAccept(final INodeEvaluationVisitor visitor,
* final org.w3c.dom.Node target) { org.w3c.dom.Node result = target; for (int i = 0; i <
* (children.length - 1); ++i) { result = (org.w3c.dom.Node) children[i].jjtAccept(visitor,
* result); } return result; }
*/
/**
* Accept the visitor. *
*
* @param visitor
* @param data
* @return evaluation result: Boolean, List, Number or Node
**/
public Object childrenAccept(final XParserVisitor visitor, final org.w3c.dom.Node data) {
org.w3c.dom.Node result = data;
if (children != null) {
for (int i = 0; i < children.length; ++i) {
Object newResult = (children[i].jjtAccept(visitor, result));
if (Boolean.FALSE.equals(newResult)) { // Boolean end early exit
return Boolean.FALSE;
}
if (Boolean.TRUE.equals(newResult)) { // No early exit yet
if ((i + 1) == children.length) {
return Boolean.TRUE;
}
continue;
}
if (newResult instanceof List) {
newResult = ((List) newResult).isEmpty() ? null : ((List) newResult).get(0);
}
if (newResult instanceof Number) {
return newResult;
}
result = (org.w3c.dom.Node) newResult; // proceed step expression
if (result==null) {
break; // nothing can be found any more
}
}
}
return DOMHelper.asList(result);
}
public Object firstChildAccept(final XParserVisitor visitor, final org.w3c.dom.Node data) {
assert children.length > 0 : "No child found for node " + this;
return children[0].jjtAccept(visitor, data);
}
public Object secondChildAccept(final XParserVisitor visitor, final org.w3c.dom.Node data) {
assert children.length > 1 : "No second child found for node " + this;
return children[1].jjtAccept(visitor, data);
}
/*
* You can override these two methods in subclasses of SimpleNode to customize the way the node
* appears when the tree is dumped. If your output uses more than one line you should override
* toString(String), otherwise overriding toString() is probably all you need to do.
*/
@Override
public String toString() {
return XParserTreeConstants.jjtNodeName[id];
}
public String toString(final String prefix) {
return prefix + toString();
}
/*
* Override this method if you want to customize how the node dumps out its children.
*/
public void dump(final String prefix) {
dump(prefix, System.out);
}
public void dump(final String prefix, final java.io.PrintStream ps) {
ps.print(toString(prefix));
printValue(ps);
ps.print(" [" + firstToken.beginLine + ":" + firstToken.beginColumn + "-" + lastToken.endLine + ":" + lastToken.endColumn + "]");
ps.println();
if (children != null) {
for (int i = 0; i < children.length; ++i) {
SimpleNode n = children[i];
if (n != null) {
n.dump(prefix + " ", ps);
}
}
}
}
// Manually inserted code begins here
private String m_value;
private Token firstToken;
private Token lastToken;
public void processToken(final Token t) {
m_value = t.image;
}
public void processValue(final String val) {
m_value = val;
}
public void printValue(final java.io.PrintStream ps) {
if (null != m_value) {
ps.print(" \"" + m_value + "\"");
}
}
public String getValue() {
return m_value;
}
public void setValue(final String m_value) {
this.m_value = m_value;
}
// private Object _userValue;
//
// protected Object getUserValue() {
// return _userValue;
// }
//
// protected void setUserValue(final Object userValue) {
// _userValue = userValue;
// }
public int getID() {
return id;
}
/*
* public Object childrenFilteredAccept(final XParserVisitor visitor, final int filterID, final
* org.w3c.dom.Node data) { org.w3c.dom.Node result = data; if (children != null) { for (int i =
* 0; i < children.length; ++i) { if (children[i].getID() == filterID) { result =
* (org.w3c.dom.Node) children[i].jjtAccept(visitor, result); } } } return result; }
*/
public SimpleNode getFirstChildWithId(final int id) {
if (children != null) {
for (int i = 0; i < children.length; ++i) {
if (children[i].getID() == id) {
return children[i];
}
}
}
return null;
}
public T firstChildAccept(final INodeEvaluationVisitor visitor, final org.w3c.dom.Node data) {
if (children.length < 1) {
throw new IllegalArgumentException("Node " + this + " is supposed to have children");
}
return visitor.visit(children[0], data);
}
public T lastChildAccept(final INodeEvaluationVisitor visitor, final org.w3c.dom.Node data) {
if (children.length < 1) {
throw new IllegalArgumentException("Node " + this + " is supposed to have children");
}
return visitor.visit(children[children.length - 1], data);
}
/**
* @param visitorClosure
* @param data
*/
public void eachDirectChild(final org.xmlbeam.util.intern.duplex.INodeEvaluationVisitor.VisitorClosure visitorClosure, final org.w3c.dom.Node data) {
if (children == null) {
return;
}
for (SimpleNode child : children) {
visitorClosure.apply(child, data);
}
}
public void eachChild(final org.xmlbeam.util.intern.duplex.INodeEvaluationVisitor.VisitorClosure visitorClosure, final org.w3c.dom.Node data) {
if (children == null) {
return;
}
for (SimpleNode child : children) {
visitorClosure.apply(child, data);
child.eachChild(visitorClosure, data);
}
}
/**
* @param visitor
* @param data
* @param stepListFilter
* @return a List containing the selection results
*/
@SuppressWarnings("unchecked")
public List childrenAcceptWithFilter(final XParserVisitor visitor, final org.w3c.dom.Node data, final StepListFilter stepListFilter) {
if (stepListFilter == null) {
return (List) childrenAccept(visitor, data);
}
List filteredChildren = stepListFilter.filter(children);
org.w3c.dom.Node result = data;
for (Node child : filteredChildren) {
Object newResult = (child.jjtAccept(visitor, result));
if (newResult instanceof List) {
newResult = ((List) newResult).isEmpty() ? null : ((List) newResult).get(0);
}
result = (org.w3c.dom.Node) newResult; // proceed step expression
}
return DOMHelper.asList(result);
}
/**
* @param token
*/
void jjtSetFirstToken(final Token token) {
this.firstToken = token;
}
/**
* @param token
*/
void jjtSetLastToken(final Token token) {
this.lastToken = token;
}
public int getStartColumn() {
return firstToken.beginColumn - 1;
}
public int getEndColumn() {
return lastToken.endColumn - 1;
}
}
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