Android XML Document Search getStringDataAsList(Document vastDoc, String elementName)

Description

get String Data As List

Declaration

static List<String> getStringDataAsList(Document vastDoc,
            String elementName) 

Method Source Code

//package com.java2s;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    static List<String> getStringDataAsList(Document vastDoc,
            String elementName) {
        return getStringDataAsList(vastDoc, elementName, null, null);
    }//  w  ww. jav a2  s  . c o m

    static List<String> getStringDataAsList(Document vastDoc,
            String elementName, String attributeName, String attributeValue) {
        ArrayList<String> results = new ArrayList();
        if (vastDoc != null) {
            NodeList nodes = vastDoc.getElementsByTagName(elementName);
            if (nodes != null) {
                int i = 0;
                while (i < nodes.getLength()) {
                    Node node = nodes.item(i);
                    if (node != null) {
                        if (nodeMatchesAttributeFilter(
                                node,
                                attributeName,
                                Arrays.asList(new String[] { attributeValue }))) {
                            String nodeValue = getNodeValue(node);
                            if (nodeValue != null) {
                                results.add(nodeValue);
                            }
                        }
                    }
                    i++;
                }
            }
        }
        return results;
    }

    static boolean nodeMatchesAttributeFilter(Node node,
            String attributeName, List<String> attributeValues) {
        if (attributeName == null || attributeValues == null) {
            return true;
        }
        NamedNodeMap attrMap = node.getAttributes();
        if (attrMap != null) {
            Node attrNode = attrMap.getNamedItem(attributeName);
            if (attrNode != null
                    && attributeValues.contains(attrNode.getNodeValue())) {
                return true;
            }
        }
        return false;
    }

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

Related

1. getFirstElementByTagName(Document doc, String name)
2. getString(Document doc, String tagName)
3. getStringDataAsList(Document vastDoc, String elementName, String attributeName, String attributeValue)
4. getInteger(Document doc, String tagName)