Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *    Copyright (c) 2013, University of Toronto.
 * 
 *    Licensed under the Apache License, Version 2.0 (the "License"); you may
 *    not use this file except in compliance with the License. You may obtain
 *    a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 *    License for the specific language governing permissions and limitations
 *    under the License.
 */

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class Main {
    static XPathFactory factory = XPathFactory.newInstance();

    public static String getStringByPath(String path, Element localElement, Document doc)
            throws XPathExpressionException {
        // Note the difference between this function and function "getStringsByPath"
        // The path for this function should be like "/clinical_studies/clinical_study/brief_title",
        // which returns ONLY ONE string of the first matched element "brief_title"
        XPath xpath = factory.newXPath();
        Object element = path.startsWith("/") || localElement == null ? doc : localElement;
        return (String) xpath.evaluate(path, element, XPathConstants.STRING);
    }
}