com.disney.groovity.util.XmlParser Maven / Gradle / Ivy
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package com.disney.groovity.util;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.concurrent.ArrayBlockingQueue;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.ext.DefaultHandler2;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* Utility for parsing XML sources in to Map/List form; this works well for
* general purpose data access, but for more complete XML document and
* round-trip support use JAXB instead
*
* @author Alex Vigdor
*
*/
public class XmlParser {
private static final Queue xmlReaderCache = new ArrayBlockingQueue<>(
Runtime.getRuntime().availableProcessors() * 4);
public static XMLReader borrowXMLReader() throws ParserConfigurationException, SAXException {
XMLReader reader = xmlReaderCache.poll();
if (reader == null) {
reader = XMLReaderFactory.createXMLReader();
}
return reader;
}
public static void returnXMLReader(XMLReader reader) {
xmlReaderCache.offer(reader);
}
@SuppressWarnings("rawtypes")
public static Map parseXML(Reader reader) throws IOException, ParserConfigurationException, SAXException {
ArrayDeque
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