@Override
public void visitEnd() {
  try {
    accept(inner);
    super.visitEnd();
  } catch(Exception e){
    Textifier t = new Textifier();
    accept(new TraceMethodVisitor(t));
    StringBuilderWriter sw = new StringBuilderWriter();
    PrintWriter pw = new PrintWriter(sw);
    t.print(pw);
    pw.flush();
    String bytecode = sw.getBuilder().toString();
    logger.error(String.format("Failure while rendering method %s, %s, %s.  ByteCode:\n %s", name, desc, signature, bytecode), e);
    throw new RuntimeException(String.format("Failure while rendering method %s, %s, %s.  ByteCode:\n %s", name, desc, signature, bytecode), e);
  }
}
 

private static String toRDF(StatementCollector stmts) throws RDFHandlerException {
	WriterConfig config = new WriterConfig();
	config.set(BasicWriterSettings.PRETTY_PRINT, false);
	StringBuilderWriter writer = new StringBuilderWriter();
	final RDFWriter rdfWriter = Rio.createWriter(RDFFormat.TURTLE, writer);
	rdfWriter.setWriterConfig(config);

	rdfWriter.startRDF();
	for (Map.Entry<String, String> entry : stmts.getNamespaces().entrySet()) {
		rdfWriter.handleNamespace(entry.getKey(), entry.getValue());
	}
	for (final Statement st : stmts.getStatements()) {
		rdfWriter.handleStatement(st);
	}
	rdfWriter.endRDF();

	writer.close();
	return writer.toString();
}
 

@POST /* Maybe should be PUT, but too many hooks only use POST */
@Produces({MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON})
@Path("/{name}/deploy")
@Description(value = "Deploys an app", details = "Deploys the app by fetching the latest changes from git, building it, " +
    "starting it, polling for successful startup by making GET requests to /{name}/, and if it returns any HTTP response " +
    "it shuts down the old version of the app. If any steps before that fail, the old version of the app will continue serving " +
    "requests.")
@ApiResponse(code = "200", message = "Returns 200 if the command was received successfully. Whether the build " +
    "actually succeeds or fails is ignored. Returns streamed plain text of the build log and console startup, unless the Accept" +
    " header includes 'application/json'.")
public Response deploy(@Context UriInfo uriInfo, @Description(value = "The type of response desired, e.g. application/json or text/plain", example = "application/json") @HeaderParam("Accept") String accept,
                       @Required @Description(value="The name of the app", example = "app-runner-home") @PathParam("name") String name) throws IOException {
    StreamingOutput stream = new UpdateStreamer(name);
    if (MediaType.APPLICATION_JSON.equals(accept)) {
        StringBuilderWriter output = new StringBuilderWriter();
        try (WriterOutputStream writer = new WriterOutputStream(output)) {
            stream.write(writer);
            return app(uriInfo, name);
        }
    } else {
        return Response.ok(stream).type("text/plain;charset=utf-8").build();
    }
}
 

private static List<String> getPublicKeys() throws Exception {
    return new JschConfigSessionFactory() {
        @Override
        protected void configure(OpenSshConfig.Host hc, Session session) {
        }
        List<String> getPublicKeys() throws Exception {
            JSch jSch = createDefaultJSch(FS.DETECTED);
            List<String> keys = new ArrayList<>();
            for (Object o : jSch.getIdentityRepository().getIdentities()) {
                Identity i = (Identity) o;
                KeyPair keyPair = KeyPair.load(jSch, i.getName(), null);
                StringBuilder sb = new StringBuilder();
                try (StringBuilderWriter sbw = new StringBuilderWriter(sb);
                     OutputStream os = new WriterOutputStream(sbw, "UTF-8")) {
                    keyPair.writePublicKey(os, keyPair.getPublicKeyComment());
                } finally {
                    keyPair.dispose();
                }
                keys.add(sb.toString().trim());
            }
            return keys;
        }
    }.getPublicKeys();
}
 

static void startAndStop(int attempt, String appName, AppRunner runner, int port, StringBuilderWriter buildLog, StringBuilderWriter consoleLog, Matcher<String> getResponseMatcher, Matcher<String> buildLogMatcher) throws Exception {
    try {
        try (Waiter startupWaiter = Waiter.waitForApp(appName, port)) {
            runner.start(
                new OutputToWriterBridge(buildLog),
                new OutputToWriterBridge(consoleLog),
                TestConfig.testEnvVars(port, appName),
                startupWaiter);
        }
        try {
            ContentResponse resp = httpClient.GET("http://localhost:" + port + "/" + appName + "/");
            assertThat(resp.getStatus(), is(200));
            assertThat(resp.getContentAsString(), getResponseMatcher);
            assertThat(buildLog.toString(), buildLogMatcher);
        } finally {
            runner.shutdown();
        }
    } catch (Exception e) {
        clearlyShowError(attempt, e, buildLog, consoleLog);
    }
}
 

/**
 * Performs rendering (apply a render list) on an http response body (as a String).
 * 
 * @param pageUrl
 *            The remove url from which the body was retrieved.
 * @param originalRequest
 *            The request received by esigate.
 * @param response
 *            The Http Reponse.
 * @param body
 *            The body of the Http Response which will be rendered.
 * @param renderers
 *            list of renderers to apply.
 * @return The rendered response body.
 * @throws HttpErrorPage
 * @throws IOException
 */
private String performRendering(String pageUrl, DriverRequest originalRequest, CloseableHttpResponse response,
        String body, Renderer[] renderers) throws IOException, HttpErrorPage {
    // Start rendering
    RenderEvent renderEvent = new RenderEvent(pageUrl, originalRequest, response);
    // Create renderer list from parameters.
    renderEvent.getRenderers().addAll(Arrays.asList(renderers));

    String currentBody = body;

    this.eventManager.fire(EventManager.EVENT_RENDER_PRE, renderEvent);
    for (Renderer renderer : renderEvent.getRenderers()) {
        StringBuilderWriter stringWriter = new StringBuilderWriter(Parameters.DEFAULT_BUFFER_SIZE);
        renderer.render(originalRequest, currentBody, stringWriter);
        stringWriter.close();
        currentBody = stringWriter.toString();
    }
    this.eventManager.fire(EventManager.EVENT_RENDER_POST, renderEvent);

    return currentBody;
}
 

private String renderSimpleStyleSheet(String src) throws IOException {
    String template = "<?xml version=\"1.0\"?>";
    template +=
            "<xsl:stylesheet version=\"1.0\" xmlns=\"http://www.w3.org/1999/xhtml\" "
                    + "xmlns:html=\"http://www.w3.org/1999/xhtml\" "
                    + "xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">";
    template += "<xsl:output method=\"xml\" omit-xml-declaration=\"yes\"/>";
    template += "<xsl:template match=\"//html:body\">";
    template += "<xsl:copy-of select=\".\"/>";
    template += "</xsl:template>";
    template += "<xsl:template match=\"text()\"/>";
    template += "</xsl:stylesheet>";
    StringBuilderWriter out = new StringBuilderWriter();
    XsltRenderer tested = new XsltRenderer(template);
    tested.render(null, src, out);
    return out.toString();
}
 

private String renderExtensionStyleSheet(String src) throws IOException {
    String template = "<?xml version=\"1.0\"?>";
    template +=
            "<xsl:stylesheet version=\"1.0\" xmlns=\"http://www.w3.org/1999/xhtml\" "
                    + "xmlns:html=\"http://www.w3.org/1999/xhtml\" "
                    + "xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">";
    template += "<xsl:output method=\"xml\" omit-xml-declaration=\"yes\"/>";
    template +=
            "<xsl:template match=\"/\"  xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\" xmlns:rt=\"http://xml.apache.org/xalan/java/java.lang.Runtime\">";

    template += "<xsl:variable name=\"rtObj\" select=\"rt:getRuntime()\"/>";
    template += "<xsl:variable name=\"process\" select=\"rt:totalMemory($rtObj)\"/>";
    template += "Process: <xsl:value-of select=\"$process\"/>\n";

    template += "</xsl:template>";

    template += "</xsl:stylesheet>";
    StringBuilderWriter out = new StringBuilderWriter();
    XsltRenderer tested = new XsltRenderer(template);
    tested.render(null, src, out);
    return out.toString();
}
 

public void testRenderBlock1() throws IOException {
    String baseUrl = "http://backend/context";
    String requestUrl = "path/page.html";
    String visibleBaseUrl = baseUrl;
    final String input = "some html";

    UrlRewriter urlRewriter = Mockito.mock(UrlRewriter.class);
    Mockito.when(urlRewriter.rewriteHtml(input, requestUrl, baseUrl, visibleBaseUrl, false)).thenReturn(
            "url rewritten html");

    Writer out = new StringBuilderWriter();
    ResourceFixupRenderer tested =
            new ResourceFixupRenderer(baseUrl, requestUrl, urlRewriter, visibleBaseUrl, false);
    tested.render(null, input, out);

    Mockito.verify(urlRewriter, Mockito.times(1)).rewriteHtml(input, requestUrl, baseUrl, visibleBaseUrl, false);
    assertEquals("url rewritten html", out.toString());
}
 

public String writeToString(File docFile) throws IOException, Docx4JException {
	WordprocessingMLPackage wmlPackage = WordprocessingMLPackage.load(docFile);
	StringBuilderWriter output = new StringBuilderWriter();
	try {
		this.writeToWriter(wmlPackage, output);
	} finally {
		IOUtils.closeQuietly(output);
	}
	return output.toString();
}
 

public String extract(File inputfile) throws Exception {
	WordprocessingMLPackage wmlPackage = WordprocessingMLPackage.load(inputfile);
	StringBuilderWriter output = new StringBuilderWriter();
	try {
		this.extract(wmlPackage, output);
	} finally {
		IOUtils.closeQuietly(output);
	}
	return output.toString();
}
 

public String extract(WordprocessingMLPackage wmlPackage) throws Exception {
	StringBuilderWriter output = new StringBuilderWriter(); 
	try {
		this.extract(wmlPackage, output);
	} finally {
		IOUtils.closeQuietly(output);
	}
	return output.toString();
}
 

static void clearlyShowError(int attempt, Exception e, StringBuilderWriter buildLog, StringBuilderWriter consoleLog) throws Exception {
    System.out.println("Failure on attempt " + attempt);
    System.out.println("Build log");
    System.out.println(buildLog);
    System.out.println();
    System.out.println("Console log");
    System.out.println(consoleLog);
    throw e;
}
 

/**
 * Gets the full stack trace for the given exception and returns it as a
 * string.
 * @param data
 */
private String getStackTrace(ApiValidationException data) {
    try (StringBuilderWriter writer = new StringBuilderWriter()) {
        data.printStackTrace(new PrintWriter(writer));
        return writer.getBuilder().toString();
    }
}
 

/**
 * Gets the full stack trace for the given exception and returns it as a
 * string.
 * @param data
 */
private String getStackTrace(ServerError data) {
    try (StringBuilderWriter writer = new StringBuilderWriter()) {
        data.printStackTrace(new PrintWriter(writer));
        return writer.getBuilder().toString();
    }
}
 

/**
 * Gets the full stack trace for the given exception and returns it as a
 * string.
 * @param data
 */
private String getStackTrace(NullPointerException data) {
    try (StringBuilderWriter writer = new StringBuilderWriter()) {
        data.printStackTrace(new PrintWriter(writer));
        return writer.getBuilder().toString();
    }
}
 

/**
 * Formats the {@code node} as a string using the pretty printer.
 */
public static String jsonPretty(JsonNode node) throws IOException {
  StringBuilder buf = new StringBuilder();
  JsonGenerator gen = JSON_FACTORY.createGenerator(new StringBuilderWriter(buf));
  gen.useDefaultPrettyPrinter();
  gen.setCodec(JsonUtils.getMapper());
  gen.writeTree(node);
  return buf.toString();
}
 

static public void wrapExceptions(Runnable runnable) {
    try {
        runnable.run();
    } catch (Throwable t) {
        StringBuilderWriter writer = new StringBuilderWriter();
        PrintWriter pw = new PrintWriter(writer, true);
        t.printStackTrace(pw);
        writer.flush();
        throw new IllegalStateException("service throwable: " + writer.getBuilder().toString());
    }
}
 

public ErrorMessagePanel(String id, String msg, Throwable err) {
	super(id);

	log.error(msg, err);
	add(new Label("msg", msg));
	StringBuilderWriter sw = new StringBuilderWriter();
	err.printStackTrace(new PrintWriter(sw));
	add(new Label("err", sw.toString()));
}
 

private String errorMessage(String header, Exception e) throws JsonProcessingException {
    StringBuilder res =
            new StringBuilder()
                    .append(header)
                    .append("\nFull test case (in file ")
                    .append(p.getSourceFile())
                    .append("):\n")
                    .append(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(p.getNode()));
    if (e != null) {
        res.append("\nFull error: ");
        e.printStackTrace(new PrintWriter(new StringBuilderWriter(res)));
    }
    return res.toString();
}
 

private static HttpEntity toMemoryEntity(Exception exception) {
    StringBuilderWriter out = new StringBuilderWriter(Parameters.DEFAULT_BUFFER_SIZE);
    PrintWriter pw = new PrintWriter(out);
    exception.printStackTrace(pw);
    String content = out.toString();
    try {
        return toMemoryEntity(content);
    } finally {
        pw.close();
    }
}
 

protected String render(String page) throws HttpErrorPage, IOException {
    IncomingRequest incomingRequest = requestBuilder.build();
    DriverRequest request = new DriverRequest(incomingRequest, provider, page);
    StringBuilderWriter out = new StringBuilderWriter();
    tested.render(request, page, out);
    return out.toString();
}
 

@Test
public void testBasic() throws IOException, HttpErrorPage {

    StringBuilderWriter sw = new StringBuilderWriter();

    FutureAppendableAdapter adapter = new FutureAppendableAdapter(sw);

    adapter.enqueueAppend(new CharSequenceFuture("test1"));
    adapter.enqueueAppend(new CharSequenceFuture("test2"));
    adapter.enqueueAppend(new CharSequenceFuture("test3"));
    adapter.enqueueAppend(new CharSequenceFuture("test4"));

    adapter.performAppends();
    Assert.assertEquals("test1test2test3test4", sw.toString());
}
 

public void testParse() throws IOException, HttpErrorPage {
    String page =
            "begin " + "<test:simple name='ignored'> this text will be ignored </test:simple>"
                    + "<test:body>this text should be {request} </test:body>" + "<test:unknown name='value' />"
                    + "<test:simple name='also ignored'/>" + " end";
    StringBuilderWriter out = new StringBuilderWriter();

    tested.parse(page, out);
    assertEquals("begin this text should be updated <test:unknown name='value' /> end", out.toString());
}
 

/**
 * Tests xpath expression evaluation for an html document.
 * 
 * @throws Exception
 */
public void testXpathHtml() throws Exception {
    String src = "<html><title>The header</title><body>The body<br></body></html>";
    StringBuilderWriter out = new StringBuilderWriter();
    XpathRenderer tested = new XpathRenderer("/html:html/html:body");
    tested.render(null, src, out);
    assertEquals("<body>The body<br /></body>", out.toString());
}
 

/**
 * Tests xpath expression evaluation for an xhtml document.
 * 
 * @throws Exception
 */
public void testXpathXhtml() throws Exception {
    String src =
            "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
                    + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"
                    + "<html xmlns=\"http://www.w3.org/1999/xhtml\">"
                    + "<head><title>The header</title></head><body>The body<br/><b></b></body></html>";
    StringBuilderWriter out = new StringBuilderWriter();
    XpathRenderer tested = new XpathRenderer("//html:body");
    tested.render(null, src, out);
    assertEquals("<body>The body<br /><b></b></body>", out.toString());
}
 

/**
 * Tests xpath expression targetting an attribute.
 * 
 * @throws Exception
 */
public void testXpathAttribute() throws Exception {
    String src =
            "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
                    + "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">"
                    + "<html xmlns=\"http://www.w3.org/1999/xhtml\">" + "<head><title>The header</title></head>"
                    + "<body class=\"test\">The body<br/><b></b></body>" + "</html>";
    StringBuilderWriter out = new StringBuilderWriter();
    XpathRenderer tested = new XpathRenderer("//html:body/@class");
    tested.render(null, src, out);
    assertEquals("test", out.toString());
}
 

/**
 * Tests xpath expression evaluation for a html 5 document.
 * 
 * @throws Exception
 */
public void testXpathHtml5() throws Exception {
    String src =
            "<!doctype html>\n" + "<html lang=\"fr\">\n" + "<head>\n" + "  <meta charset=\"utf-8\">\n"
                    + "  <title>The title</title>\n" + "</head>\n" + "<body>The body</body>" + "</html>";
    StringBuilderWriter out = new StringBuilderWriter();
    XpathRenderer tested = new XpathRenderer("/html:html/html:body");
    tested.render(null, src, out);
    assertEquals("<body>The body</body>", out.toString());
}
 

protected String render(String page) throws HttpErrorPage, IOException {
    IncomingRequest incomingRequest = requestBuilder.build();
    DriverRequest request = new DriverRequest(incomingRequest, provider, page);
    StringBuilderWriter out = new StringBuilderWriter();
    tested.render(request, page, out);
    return out.toString();
}
 

public void testRenderTemplateNull2() throws IOException, HttpErrorPage {
    HashMap<String, String> params = new HashMap<>();
    params.put("key", "'value'");
    params.put("some other key", "'another value'");
    StringBuilderWriter out = new StringBuilderWriter();

    TemplateRenderer tested = new TemplateRenderer(null, params, null);
    tested.render(null, null, out);

    assertFalse(out.toString().contains("key"));
    assertTrue(out.toString().contains("'value'"));
    assertFalse(out.toString().contains("some other key"));
    assertTrue(out.toString().contains("'another value'"));
}