/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 */

package javax.xml.transform.ptests;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.xml.transform.Result;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerFactory;
import static javax.xml.transform.ptests.TransformerTestConst.CLASS_DIR;
import static javax.xml.transform.ptests.TransformerTestConst.GOLDEN_DIR;
import static javax.xml.transform.ptests.TransformerTestConst.XML_DIR;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import static jaxp.library.JAXPTestUtilities.compareWithGold;
import static jaxp.library.JAXPTestUtilities.failCleanup;
import static jaxp.library.JAXPTestUtilities.failUnexpected;
import static org.testng.Assert.assertTrue;
import org.testng.annotations.Test;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;

/**
 * Test newTransformerhandler() method which takes StreamSource as argument can 
 * be set to XMLReader.
 */
public class SAXTFactoryTest001 {
    /**
     * SAXTFactory.newTransformerhandler() method which takes SAXSource as 
     * argument can be set to XMLReader. SAXSource has input XML file as its
     * input source. XMLReader has a transformer handler which write out the 
     * result to output file. Test verifies output file is same as golden file.
     */
    @Test
    public void testcase01() {
        String outputFile = CLASS_DIR + "saxtf001.out";
        String goldFile = GOLDEN_DIR + "saxtf001GF.out";
        String xsltFile = XML_DIR + "cities.xsl";
        String xmlFile = XML_DIR + "cities.xml";

        try (FileOutputStream fos = new FileOutputStream(outputFile)) {
            XMLReader reader = XMLReaderFactory.createXMLReader();
            SAXTransformerFactory saxTFactory 
                    = (SAXTransformerFactory) TransformerFactory.newInstance();
            TransformerHandler handler = saxTFactory.newTransformerHandler(
                    new StreamSource(xsltFile));
            Result result = new StreamResult(fos);
            handler.setResult(result);
            reader.setContentHandler(handler);
            reader.parse(xmlFile);
            assertTrue(compareWithGold(goldFile, outputFile));
        } catch (SAXException | TransformerConfigurationException | IOException ex) {
            failUnexpected(ex);
        } finally {
            try {
                Path outputPath = Paths.get(outputFile);
                if(Files.exists(outputPath))
                    Files.delete(outputPath);
            } catch (IOException ex) {
                failCleanup(ex, outputFile);
            }
        }
    }
}