com.sun.enterprise.universal.xml.XmlParserHelper Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
There is a newer version: 7.2024.1.Alpha1
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package com.sun.enterprise.universal.xml;

import java.io.*;
import javax.xml.stream.*;

/**
 * A place to put all the ugly boiler plate for parsing an XML file.
 * @author Byron Nevins
 */
public final class XmlParserHelper {

    public XmlParserHelper(final File f) throws FileNotFoundException, XMLStreamException {
        reader = new InputStreamReader(new FileInputStream(f));
        parser = XMLInputFactory.newInstance().createXMLStreamReader(
                f.toURI().toString(), reader);
    }

    public final XMLStreamReader get() {
        return parser;
    }

    /**
     * Don't forget to call this method when finished!
     * Closes the parser and the stream
     */
    public final void stop() {
        // yes -- you **do** need to close BOTH of them!
        try {
            if (parser != null) {
                parser.close();
            }
        }
        catch (Exception e) {
            // ignore
        }
        try {
            if (reader != null) {
                reader.close();
            }
        }
        catch (Exception e) {
            // ignore
        }
    }

    private final XMLStreamReader parser;
    private final InputStreamReader reader;
}