Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.ArrayList;

import java.util.List;

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

public class Main {
    public static Node getFirstMatchingChildNode(Node node, String str) {
        return getFirstMatchingChildNode(node, str, null, null);
    }

    public static Node getFirstMatchingChildNode(Node node, String str, String str2, List<String> list) {
        if (node == null || str == null) {
            return null;
        }
        List matchingChildNodes = getMatchingChildNodes(node, str, str2, list);
        return (matchingChildNodes == null || matchingChildNodes.isEmpty()) ? null
                : (Node) matchingChildNodes.get(0);
    }

    public static List<Node> getMatchingChildNodes(Node node, String str) {
        return getMatchingChildNodes(node, str, null, null);
    }

    public static List<Node> getMatchingChildNodes(Node node, String str, String str2, List<String> list) {
        if (node == null || str == null) {
            return null;
        }
        List<Node> arrayList = new ArrayList();
        NodeList childNodes = node.getChildNodes();
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node item = childNodes.item(i);
            if (item.getNodeName().equals(str) && nodeMatchesAttributeFilter(item, str2, list)) {
                arrayList.add(item);
            }
        }
        return arrayList;
    }

    public static boolean nodeMatchesAttributeFilter(Node node, String str, List<String> list) {
        if (str == null || list == null) {
            return true;
        }
        NamedNodeMap attributes = node.getAttributes();
        if (attributes != null) {
            Node namedItem = attributes.getNamedItem(str);
            if (namedItem != null && list.contains(namedItem.getNodeValue())) {
                return true;
            }
        }
        return false;
    }

    public static String getNodeValue(Node node) {
        return (node == null || node.getFirstChild() == null || node.getFirstChild().getNodeValue() == null) ? null
                : node.getFirstChild().getNodeValue().trim();
    }
}