Java XML Parse InputSource parse(final InputSource is, final Class loader)

Description

parse

License

Open Source License

Declaration

public static Document parse(final InputSource is, final Class loader)
            throws ParserConfigurationException, IOException, SAXException 

Method Source Code

//package com.java2s;
/*//from w w  w  .j  av a2s.c  o  m
 * JBoss, Home of Professional Open Source.
 * Copyright 2013, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import org.w3c.dom.Document;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

public class Main {
    public static Document parse(final InputSource is, final Class loader)
            throws ParserConfigurationException, IOException, SAXException {
        // parse an XML document into a DOM tree
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
                "http://www.w3.org/2001/XMLSchema");
        factory.setNamespaceAware(true);
        factory.setValidating(true);
        DocumentBuilder parser = factory.newDocumentBuilder();
        final Map<String, String> system = new HashMap<String, String>();
        system.put("http://www.jboss.org/j2ee/schema/jboss-ejb3-2_0.xsd", "/schema/jboss-ejb3-2_0.xsd");
        system.put("http://www.jboss.org/j2ee/schema/jboss-ejb3-spec-2_0.xsd", "/schema/jboss-ejb3-spec-2_0.xsd");
        system.put("http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd", "/schema/ejb-jar_3_1.xsd");
        system.put("http://java.sun.com/xml/ns/javaee/javaee_6.xsd", "/schema/javaee_6.xsd");
        system.put("http://java.sun.com/xml/ns/javaee/javaee_web_services_client_1_3.xsd",
                "/schema/javaee_web_services_client_1_3.xsd");
        system.put("http://www.w3.org/2001/xml.xsd", "/schema/xml.xsd");
        system.put("http://www.jboss.org/j2ee/schema/jboss-ejb-iiop_1_0.xsd", "/schema/jboss-ejb-iiop_1_0.xsd");
        system.put("http://www.jboss.org/j2ee/schema/trans-timeout-1_0.xsd", "/schema/trans-timeout-1_0.xsd");
        // Somehow this gives a broken URI, see http://en.wikipedia.org/wiki/File_URI_scheme
        system.put("file://" + new File(System.getProperty("user.dir")).toURI().getPath() + "cache-test.xsd",
                "cache-test.xsd");
        //system.put("file://" + new File(System.getProperty("user.dir")).toURI().getPath() + "jboss-ejb-iiop_1_0.xsd", "/schema/jboss-ejb-iiop_1_0.xsd");
        system.put("file://" + new File(System.getProperty("user.dir")).toURI().getPath() + "tx-test.xsd",
                "tx-test.xsd");
        parser.setEntityResolver(new EntityResolver() {
            @Override
            public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
                //            System.out.println("resolve " + publicId + ", " + systemId);
                final String resource = system.get(systemId);
                if (resource == null) {
                    throw new SAXException("Can't resolve systemId " + systemId);
                }
                return inputSource(loader, systemId, resource);
            }
        });
        parser.setErrorHandler(new ErrorHandler() {
            @Override
            public void warning(SAXParseException exception) throws SAXException {
                throw exception;
            }

            @Override
            public void error(SAXParseException exception) throws SAXException {
                //System.err.println(exception.getPublicId() + " " + exception.getSystemId() + " " + exception.getLineNumber() + " " + exception.getColumnNumber() + " " + exception.getMessage());
                throw exception;
            }

            @Override
            public void fatalError(SAXParseException exception) throws SAXException {
                throw exception;
            }
        });
        return parser.parse(is);
    }

    private static InputSource inputSource(final Class loader, final String systemId, final String resource) {
        final InputStream in = loader.getResourceAsStream(resource);
        if (in == null) {
            throw new IllegalArgumentException("Can't find resource " + resource);
        }
        final InputSource inputSource = new InputSource(in);
        inputSource.setSystemId(systemId);
        return inputSource;
    }
}

Related

1. parse(InputSource in)
2. parse(InputSource input, boolean validate, boolean namespaceAware, ErrorHandler errorHandler, EntityResolver entityResolver)
3. parse(InputSource source)
4. parseXML(InputSource is)