Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.Iterator;
import java.util.Map;
import java.util.Objects;
import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

public class Main {
    public static XPathExpression buildXPath(String path) {
        return buildXPath(path, null);
    }

    public static XPathExpression buildXPath(String path, Map<String, String> map) {
        XPathFactory xPathfactory = XPathFactory.newInstance();
        XPath xpath = xPathfactory.newXPath();
        if (map != null)
            xpath.setNamespaceContext(new NamespaceContext() {

                public Iterator getPrefixes(String namespaceURI) {
                    throw new UnsupportedOperationException();
                }

                public String getPrefix(String namespaceURI) {
                    throw new UnsupportedOperationException();
                }

                public String getNamespaceURI(String prefix) {
                    Objects.requireNonNull(prefix);
                    if (map.containsKey(prefix))
                        return map.get(prefix);
                    return XMLConstants.NULL_NS_URI;
                }
            });

        try {
            return xpath.compile(path);
        } catch (XPathExpressionException e) {
            throw new RuntimeException(e);
        }
    }
}