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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.net.URI;
-
- import javax.xml.transform.Result;
- import javax.xml.transform.Source;
- import javax.xml.transform.Transformer;
- import javax.xml.transform.TransformerException;
- import javax.xml.transform.dom.DOMResult;
- import javax.xml.transform.dom.DOMSource;
- import javax.xml.transform.sax.SAXResult;
- 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 org.junit.BeforeClass;
- import org.junit.Test;
- import org.w3c.dom.Document;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertTrue;
-
- import org.apache.commons.io.IOUtils;
- import org.apache.commons.io.output.ByteArrayOutputStream;
- import org.apache.xpath.XPathAPI;
- import org.apache.xpath.objects.XObject;
-
- import org.apache.xmlgraphics.io.Resource;
- import org.apache.xmlgraphics.io.ResourceResolver;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.apps.Fop;
- import org.apache.fop.apps.FopFactory;
- import org.apache.fop.apps.FopFactoryBuilder;
- import org.apache.fop.apps.MimeConstants;
- import org.apache.fop.apps.io.ResourceResolverFactory;
- import org.apache.fop.render.xml.XMLRenderer;
-
- import static org.apache.fop.FOPTestUtils.getBaseDir;
-
- /**
- * Tests URI resolution facilities.
- */
- public class URIResolutionTestCase {
-
- private SAXTransformerFactory tfactory = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
-
- private static final File BACKUP_DIR = new File(getBaseDir(), "build/test-results");
-
- private static FopFactory fopFactory;
-
- @BeforeClass
- public static void makeDirs() {
- BACKUP_DIR.mkdirs();
- fopFactory = new FopFactoryBuilder(new File(".").getAbsoluteFile().toURI(),
- new CustomURIResolver()).build();
- }
-
- private static File getTestDir() {
- return new File(getBaseDir(), "test/xml/uri-testing/");
- }
-
- @Test
- public void innerTestFO1() throws Exception {
- File foFile = new File(getTestDir(), "custom-scheme/only-scheme-specific-part.fo");
-
- FOUserAgent ua = fopFactory.newFOUserAgent();
-
- Document doc = createAreaTree(foFile, ua);
-
- // XPath checking on the area tree
- assertEquals("viewport for external-graphic is missing",
- "true", evalXPath(doc, "boolean(//flow/block[1]/lineArea/viewport)"));
- assertEquals("46080", evalXPath(doc, "//flow/block[1]/lineArea/viewport/@ipd"));
- assertEquals("46080", evalXPath(doc, "//flow/block[1]/lineArea/viewport/@bpd"));
- }
-
- /**
- * Test custom URI resolution with a hand-written URIResolver.
- * @throws Exception if anything fails
- */
- @Test
- public void testFO2() throws Exception {
- File foFile = new File(getTestDir(), "custom-scheme/only-scheme-specific-part-svg.fo");
-
- FOUserAgent ua = fopFactory.newFOUserAgent();
-
- ByteArrayOutputStream baout = new ByteArrayOutputStream();
-
- Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, ua, baout);
-
- Transformer transformer = tfactory.newTransformer(); //Identity transf.
- Source src = new StreamSource(foFile);
- Result res = new SAXResult(fop.getDefaultHandler());
- transformer.transform(src, res);
-
- OutputStream out = new java.io.FileOutputStream(
- new File(BACKUP_DIR, foFile.getName() + ".pdf"));
- try {
- baout.writeTo(out);
- } finally {
- IOUtils.closeQuietly(out);
- }
-
- //Test using PDF as the area tree doesn't invoke Batik so we could check
- //if the resolver is actually passed to Batik by FOP
- assertTrue("Generated PDF has zero length", baout.size() > 0);
- }
-
- private Document createAreaTree(File fo, FOUserAgent ua)
- throws TransformerException, FOPException {
- DOMResult domres = new DOMResult();
- //Setup Transformer to convert the area tree to a DOM
- TransformerHandler athandler = tfactory.newTransformerHandler();
- athandler.setResult(domres);
-
- XMLRenderer atrenderer = new XMLRenderer(ua);
- atrenderer.setContentHandler(athandler);
- ua.setRendererOverride(atrenderer);
-
- Fop fop = fopFactory.newFop(ua);
-
- Transformer transformer = tfactory.newTransformer(); //Identity transf.
- Source src = new StreamSource(fo);
- Result res = new SAXResult(fop.getDefaultHandler());
- transformer.transform(src, res);
-
- Document doc = (Document) domres.getNode();
- saveAreaTreeXML(doc, new File(BACKUP_DIR, fo.getName() + ".at.xml"));
- return doc;
- }
-
- private String evalXPath(Document doc, String xpath) {
- XObject res;
- try {
- res = XPathAPI.eval(doc, xpath);
- } catch (TransformerException e) {
- throw new RuntimeException("XPath evaluation failed: " + e.getMessage());
- }
- return res.str();
- }
-
- /**
- * Save the area tree XML for later inspection.
- * @param doc area tree as a DOM document
- * @param target target file
- * @throws TransformerException if a problem occurs during serialization
- */
- protected void saveAreaTreeXML(Document doc, File target) throws TransformerException {
- Transformer transformer = tfactory.newTransformer();
- Source src = new DOMSource(doc);
- Result res = new StreamResult(target);
- transformer.transform(src, res);
- }
-
- private static final class CustomURIResolver implements ResourceResolver {
- private final ResourceResolver defaultImpl = ResourceResolverFactory.createDefaultResourceResolver();
-
- public Resource getResource(URI uri) throws IOException {
- if (uri.getScheme().equals("funky") && uri.getSchemeSpecificPart().equals("myimage123")) {
- return new Resource("", new FileInputStream("test/resources/images/bgimg300dpi.jpg"));
- }
-
- return defaultImpl.getResource(uri);
- }
-
- public OutputStream getOutputStream(URI uri) throws IOException {
- return defaultImpl.getOutputStream(uri);
- }
-
- }
- }
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