Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.util.ArrayList;
import java.util.List;

import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     *  Returns all nodes at the bottom of path from node.
     * If element begins with '@', indicates an attribute, eg "@id"
     * The '#text' element indicates that the node has a single text child.
     * @param node    Node to apply path to
     * @param path    Path to apply
     * @return        All nodes at bottom of path. List may be empty but not null.
     */
    static public List<Node> extractPaths(Node node, String[] path) {
        List<Node> result = new ArrayList<Node>();
        result.add(node);
        for (int i = 0; i < path.length; i++) {
            List<Node> children = new ArrayList<Node>();
            for (int j = 0; j < result.size(); j++)
                children.addAll(extractNodes((Node) result.get(j), path[i]));
            result = children;
        }
        return result;
    }

    /**
     *  Returns all nodes at the bottom of path from node.
     * If element begins with '@', indicates an attribute, eg "@id"
     * The '#text' element indicates that the node has a single text child.
     * @param node    Node to apply path to
     * @param path    Path to apply
     * @return        All Nodes at bottom of path. List may be empty, but not null.
     */
    static public List<Node> extractNodes(Node node, String path) {
        if (node == null)
            return new ArrayList<Node>();
        List<Node> result = new ArrayList<Node>();
        NodeList list = node.getChildNodes();
        if (path.equals("#text"))
            result.add(node.getFirstChild());
        else if (path.charAt(0) == '@')
            result.add(node.getAttributes().getNamedItem(path.substring(1)));
        else
            for (int j = 0; j < list.getLength(); j++)
                if (list.item(j).getNodeType() == Node.ELEMENT_NODE && list.item(j).getNodeName().equals(path))
                    result.add(list.item(j));
        return result;
    }
}