Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.Node;

public class Main {
    /**
     * Evaluates the specified XPath expression and returns the result as a
     * Node.
     *
     * @param nodeName
     *            The XPath expression to evaluate.
     * @param node
     *            The node to run the expression on.
     *
     * @return The Node result.
     *
     * @throws XPathExpressionException
     *             If there was a problem processing the specified XPath
     *             expression.
     */
    public static Node asNode(String nodeName, Node node) throws XPathExpressionException {
        return asNode(nodeName, node, xpath());
    }

    /**
     * Same as {@link #asNode(String, Node)} but allows an xpath to be
     * passed in explicitly for reuse.
     */
    public static Node asNode(String nodeName, Node node, XPath xpath) throws XPathExpressionException {
        if (node == null)
            return null;
        return (Node) xpath.evaluate(nodeName, node, XPathConstants.NODE);
    }

    /**
     * Returns a new instance of XPath, which is not thread safe and not
     * reentrant.
     */
    public static XPath xpath() {
        return XPathFactory.newInstance().newXPath();
    }
}