com.github.simy4.xpath.jdom.navigator.JDomNavigator Maven / Gradle / Ivy

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Convenient utility to build XML models by evaluating XPath expressions

There is a newer version: 2.3.9

package com.github.simy4.xpath.jdom.navigator;

import com.github.simy4.xpath.XmlBuilderException;
import com.github.simy4.xpath.jdom.navigator.node.JDomNode;
import com.github.simy4.xpath.navigator.Navigator;
import org.jdom2.Attribute;
import org.jdom2.Element;
import org.jdom2.Namespace;

import javax.xml.XMLConstants;
import javax.xml.namespace.QName;

public final class JDomNavigator implements Navigator {

    private final JDomNode xml;

    public JDomNavigator(JDomNode xml) {
        this.xml = xml;
    }

    @Override
    public JDomNode root() {
        return xml;
    }

    @Override
    public JDomNode parentOf(JDomNode node) {
        return node.getParent();
    }

    @Override
    public Iterable elementsOf(final JDomNode parent) {
        return parent.elements();
    }

    @Override
    public Iterable attributesOf(final JDomNode parent) {
        return parent.attributes();
    }

    @Override
    public JDomNode createAttribute(JDomNode parent, QName attribute) throws XmlBuilderException {
        final Attribute attr = new Attribute(attribute.getLocalPart(), "");
        if (!XMLConstants.NULL_NS_URI.equals(attribute.getNamespaceURI())) {
            attr.setNamespace(Namespace.getNamespace(attribute.getPrefix(), attribute.getNamespaceURI()));
        }
        return parent.appendAttribute(attr);
    }

    @Override
    public JDomNode createElement(JDomNode parent, QName element) throws XmlBuilderException {
        final Element elem = new Element(element.getLocalPart());
        if (!XMLConstants.NULL_NS_URI.equals(element.getNamespaceURI())) {
            elem.setNamespace(Namespace.getNamespace(element.getPrefix(), element.getNamespaceURI()));
        }
        return parent.appendElement(elem);
    }

    @Override
    public void setText(JDomNode node, String text) throws XmlBuilderException {
        node.setText(text);
    }

    @Override
    public void prependCopy(JDomNode node) throws XmlBuilderException {
        node.prependCopy();
    }

    @Override
    public void remove(JDomNode node) throws XmlBuilderException {
        node.remove();
    }

}