Java Code Examples for java.io.StringWriter#write()

/**
 * FETCHNAMESPACE endpoint is an admin-level endpoint meant to fetch a fresh, up-to-date, FSImage
 * from the active cluster.
 */
@GET
@Path("/fetchNamespace")
@Produces({MediaType.TEXT_PLAIN})
public Response fetchNamespace() {
  final NameNodeLoader nnLoader = (NameNodeLoader) context.getAttribute(NNA_NN_LOADER);
  StringWriter writer = new StringWriter();
  try {
    before();
    writer.write("Attempting to bootstrap namespace.<br />");
    try {
      TransferFsImageWrapper transferFsImage = new TransferFsImageWrapper(nnLoader);
      transferFsImage.downloadMostRecentImage();
      writer.write(
          "Done.<br />Please reload by going to `/reloadNamespace` "
              + "or by `service nn-analytics restart` on command line.");
    } catch (Throwable e) {
      writer.write("Bootstrap failed: " + e);
    }
    return Response.ok(writer.toString(), MediaType.TEXT_PLAIN).build();
  } catch (Exception ex) {
    return handleException(ex);
  } finally {
    after();
  }
}
 

@Override
public void connect() throws IOException {
    InputStream is = getInputStream();
    if(is == null) {
        throw new FileNotFoundException(path);
    }
    content = new StringWriter();
    try(BufferedReader reader = new BufferedReader(new InputStreamReader(is))) {
        String line = reader.readLine();
        while(line != null) {
            content.write(line);
            content.write('\n');
            line = reader.readLine();
        }
    }
}
 

static String readFully(Reader reader) throws IOException {
    try {
        StringWriter writer = new StringWriter();
        char[] buffer = new char[1024];
        while (true) {
            int count = reader.read(buffer);
            if (count == -1) {
                break;
            }
            writer.write(buffer, 0, count);
        }
        String stringWriter = writer.toString();
        return stringWriter;
    } finally {
        reader.close();
    }
}
 

private static String getStreamAsString(InputStream stream, String charset) throws IOException {
    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(stream, charset));
        StringWriter writer = new StringWriter();

        char[] chars = new char[256];
        int count = 0;
        while ((count = reader.read(chars)) > 0) {
            writer.write(chars, 0, count);
        }

        return writer.toString();
    } finally {
        if (stream != null) {
            stream.close();
        }
    }
}
 

/**
 * Read a classpath resource into a string and return it.
 * @param resName - classpath resource name
 * @return the resource content as a string
 * @throws IOException - on failure
 */
public static String readResource(String resName) throws IOException {
    // Strip any classpath: prefix
    if(resName.startsWith("classpath:")) {
        resName = resName.substring(10);
    }
    InputStream is = SimpleTokenUtils.class.getResourceAsStream(resName);
    StringWriter sw = new StringWriter();
    try(BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
        String line = br.readLine();
        while(line != null) {
            sw.write(line);
            sw.write('\n');
            line = br.readLine();
        }
    }
    return sw.toString();
}
 

/**
 * Create a CDI aware base web application archive that includes an embedded JWKS public key
 * that is included as the mp.jwt.verify.publickey property.
 * The root url is /jwks
 * @return the base base web application archive
 * @throws IOException - on resource failure
 */
@Deployment(name = "jwk")
public static WebArchive createDeploymentJWK() throws IOException {
    // Read in the JWKS
    URL publicKey = PublicKeyAsJWKTest.class.getResource("/signer-key4k.jwk");
    StringWriter jwksContents = new StringWriter();
    try (BufferedReader reader = new BufferedReader(new InputStreamReader(publicKey.openStream()))) {
        String line = reader.readLine();
        while (line != null) {
            jwksContents.write(line);
            line = reader.readLine();
        }
    }
    // Setup the microprofile-config.properties content
    Properties configProps = new Properties();
    System.out.printf("jwk: %s\n", jwksContents.toString());
    configProps.setProperty(VERIFIER_PUBLIC_KEY, jwksContents.toString());
    configProps.setProperty(ISSUER, TCKConstants.TEST_ISSUER);
    StringWriter configSW = new StringWriter();
    configProps.store(configSW, "PublicKeyAsJWKTest JWK microprofile-config.properties");
    StringAsset configAsset = new StringAsset(configSW.toString());

    WebArchive webArchive = ShrinkWrap
        .create(WebArchive.class, "PublicKeyAsJWKTest.war")
        .addAsManifestResource(new StringAsset(MpJwtTestVersion.MPJWT_V_1_1.name()), MpJwtTestVersion.MANIFEST_NAME)
        .addAsResource(publicKey, "/signer-keyset4k.jwk")
        .addClass(PublicKeyEndpoint.class)
        .addClass(JwksApplication.class)
        .addClass(SimpleTokenUtils.class)
        .addAsWebInfResource("beans.xml", "beans.xml")
        .addAsManifestResource(configAsset, "microprofile-config.properties")
        ;
    System.out.printf("WebArchive: %s\n", webArchive.toString(true));
    return webArchive;
}
 

/**
 * Read a classpath resource into a string and return it.
 * @param resName - classpath resource name
 * @return the resource content as a string
 * @throws IOException - on failure
 */
public static String readResource(String resName) throws IOException {
    InputStream is = TokenUtils.class.getResourceAsStream(resName);
    StringWriter sw = new StringWriter();
    try(BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
        String line = br.readLine();
        while(line != null) {
            sw.write(line);
            sw.write('\n');
            line = br.readLine();
        }
    }
    return sw.toString();
}
 

private String readChangedContent() throws IOException {
    InputStream changedFileSource = V8DebugTest.class.getResourceAsStream(TEST_FILE_CHANGING2);
    BufferedReader br = new BufferedReader(new InputStreamReader(changedFileSource));
    StringWriter sw = new StringWriter();
    String line;
    while ((line = br.readLine()) != null) {
        sw.write(line);
    }
    sw.close();
    return sw.toString();
}
 

/** Encodes the string according to RFC 2396 IETF spec required by INS.
 */
private String encode( String stringToEncode ) {
    StringWriter theStringAfterEscape = new StringWriter();
    int byteCount = 0;
    for( int i = 0; i < stringToEncode.length(); i++ )
    {
        char c = stringToEncode.charAt( i ) ;
        if( Character.isLetterOrDigit( c ) ) {
            theStringAfterEscape.write( c );
        }
        // Do no Escape for characters in this list
        // RFC 2396
        else if((c == ';') || (c == '/') || (c == '?')
        || (c == ':') || (c == '@') || (c == '&') || (c == '=')
        || (c == '+') || (c == '$') || (c == ';') || (c == '-')
        || (c == '_') || (c == '.') || (c == '!') || (c == '~')
        || (c == '*') || (c == ' ') || (c == '(') || (c == ')') )
        {
            theStringAfterEscape.write( c );
        }
        else {
            // Add escape
            theStringAfterEscape.write( '%' );
            String hexString = Integer.toHexString( (int) c );
            theStringAfterEscape.write( hexString );
        }
    }
    return theStringAfterEscape.toString();
}
 

/**
 * Copies a schema fragment into the javadoc of the generated class.
 */
private void addSchemaFragmentJavadoc( CClassInfo bean, XSComponent sc ) {

    // first, pick it up from <documentation> if any.
    String doc = builder.getBindInfo(sc).getDocumentation();
    if(doc!=null)
        append(bean, doc);

    // then the description of where this component came from
    Locator loc = sc.getLocator();
    String fileName = null;
    if(loc!=null) {
        fileName = loc.getPublicId();
        if(fileName==null)
            fileName = loc.getSystemId();
    }
    if(fileName==null)  fileName="";

    String lineNumber=Messages.format( Messages.JAVADOC_LINE_UNKNOWN);
    if(loc!=null && loc.getLineNumber()!=-1)
        lineNumber = String.valueOf(loc.getLineNumber());

    String componentName = sc.apply( new ComponentNameFunction() );
    String jdoc = Messages.format( Messages.JAVADOC_HEADING, componentName, fileName, lineNumber );
    append(bean,jdoc);

    // then schema fragment
    StringWriter out = new StringWriter();
    out.write("<pre>\n");
    SchemaWriter sw = new SchemaWriter(new JavadocEscapeWriter(out));
    sc.visit(sw);
    out.write("</pre>");
    append(bean,out.toString());
}
 

/**
 * Returns the remainder of 'reader' as a string, closing it when done.
 */
public static String readFully(Reader reader) throws IOException {
    try {
        StringWriter writer = new StringWriter();
        char[] buffer = new char[1024];
        int count;
        while ((count = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, count);
        }
        return writer.toString();
    } finally {
        reader.close();
    }
}
 

/**
 * Copies a schema fragment into the javadoc of the generated class.
 */
private void addSchemaFragmentJavadoc( CClassInfo bean, XSComponent sc ) {

    // first, pick it up from <documentation> if any.
    String doc = builder.getBindInfo(sc).getDocumentation();
    if(doc!=null)
        append(bean, doc);

    // then the description of where this component came from
    Locator loc = sc.getLocator();
    String fileName = null;
    if(loc!=null) {
        fileName = loc.getPublicId();
        if(fileName==null)
            fileName = loc.getSystemId();
    }
    if(fileName==null)  fileName="";

    String lineNumber=Messages.format( Messages.JAVADOC_LINE_UNKNOWN);
    if(loc!=null && loc.getLineNumber()!=-1)
        lineNumber = String.valueOf(loc.getLineNumber());

    String componentName = sc.apply( new ComponentNameFunction() );
    String jdoc = Messages.format( Messages.JAVADOC_HEADING, componentName, fileName, lineNumber );
    append(bean,jdoc);

    // then schema fragment
    StringWriter out = new StringWriter();
    out.write("<pre>\n");
    SchemaWriter sw = new SchemaWriter(new JavadocEscapeWriter(out));
    sc.visit(sw);
    out.write("</pre>");
    append(bean,out.toString());
}
 

/**
 * Returns the remainder of 'reader' as a string, closing it when done.
 */
public static String readFully(Reader reader) throws IOException {
    try {
        StringWriter writer = new StringWriter();
        char[] buffer = new char[1024];
        int count;
        while ((count = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, count);
        }
        return writer.toString();
    } finally {
        reader.close();
    }
}
 

/**
 * Returns the remainder of 'reader' as a string, closing it when done.
 */
public static String readFully(Reader reader) throws IOException {
    try {
        StringWriter writer = new StringWriter();
        char[] buffer = new char[1024];
        int count;
        while ((count = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, count);
        }
        return writer.toString();
    } finally {
        reader.close();
    }
}
 

private static String getCopyrightText () {
    
    String copyrighttext = NbBundle.getMessage(ProductInformationPanel.class, "LBL_Copyright", FONT_SIZE); // NOI18N
    
    FileObject licenseFolder = FileUtil.getConfigFile("About/Licenses");   // NOI18N
    if (licenseFolder != null) {
        FileObject[] foArray = licenseFolder.getChildren();
        if (foArray.length > 0) {
            String curLicense;
            boolean isSomeLicense = false;
            StringWriter sw = new StringWriter();
            for (int i = 0; i < foArray.length; i++) {
                curLicense = loadLicenseText(foArray[i]);
                if (curLicense != null) {
                    sw.write("<br>" + MessageFormat.format( // NOI18N
                        NbBundle.getBundle(ProductInformationPanel.class).getString("LBL_AddOnCopyright"), // NOI18N
                        new Object[] { curLicense, FONT_SIZE }));
                    isSomeLicense = true;
                }
            }
            if (isSomeLicense) {
                copyrighttext += sw.toString();
            }
        }
    }
    
    return copyrighttext;
}
 

static String renderDocumentation(ConfigurationRegistry configurationRegistry) throws IOException, TemplateException {
    Configuration cfg = new Configuration(Configuration.VERSION_2_3_27);
    cfg.setClassLoaderForTemplateLoading(ConfigurationExporterTest.class.getClassLoader(), "/");
    cfg.setDefaultEncoding("UTF-8");
    cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
    cfg.setLogTemplateExceptions(false);

    Template temp = cfg.getTemplate("configuration.asciidoc.ftl");
    StringWriter tempRenderedFile = new StringWriter();
    tempRenderedFile.write("////\n" +
        "This file is auto generated\n" +
        "\n" +
        "Please only make changes in configuration.asciidoc.ftl\n" +
        "////\n");
    final List<ConfigurationOption<?>> nonInternalOptions = configurationRegistry.getConfigurationOptionsByCategory()
        .values()
        .stream()
        .flatMap(List::stream)
        .filter(option -> !option.getTags().contains("internal"))
        .collect(Collectors.toList());
    final Map<String, List<ConfigurationOption<?>>> optionsByCategory = nonInternalOptions.stream()
        .collect(Collectors.groupingBy(ConfigurationOption::getConfigurationCategory, TreeMap::new, Collectors.toList()));
    temp.process(Map.of(
        "config", optionsByCategory,
        "keys", nonInternalOptions.stream().map(ConfigurationOption::getKey).sorted().collect(Collectors.toList())
    ), tempRenderedFile);

    // re-process the rendered template to resolve the ${allInstrumentationGroupNames} placeholder
    StringWriter out = new StringWriter();
    new Template("", tempRenderedFile.toString(), cfg)
        .process(Map.of("allInstrumentationGroupNames", getAllInstrumentationGroupNames()), out);

    return out.toString();
}
 

/**
 * Copies a schema fragment into the javadoc of the generated class.
 */
private void addSchemaFragmentJavadoc( CClassInfo bean, XSComponent sc ) {

    // first, pick it up from <documentation> if any.
    String doc = builder.getBindInfo(sc).getDocumentation();
    if(doc!=null)
        append(bean, doc);

    // then the description of where this component came from
    Locator loc = sc.getLocator();
    String fileName = null;
    if(loc!=null) {
        fileName = loc.getPublicId();
        if(fileName==null)
            fileName = loc.getSystemId();
    }
    if(fileName==null)  fileName="";

    String lineNumber=Messages.format( Messages.JAVADOC_LINE_UNKNOWN);
    if(loc!=null && loc.getLineNumber()!=-1)
        lineNumber = String.valueOf(loc.getLineNumber());

    String componentName = sc.apply( new ComponentNameFunction() );
    String jdoc = Messages.format( Messages.JAVADOC_HEADING, componentName, fileName, lineNumber );
    append(bean,jdoc);

    // then schema fragment
    StringWriter out = new StringWriter();
    out.write("<pre>\n");
    SchemaWriter sw = new SchemaWriter(new JavadocEscapeWriter(out));
    sc.visit(sw);
    out.write("</pre>");
    append(bean,out.toString());
}
 

public String diagnosticsToString(List<Diag> diagnostics) {
    StringWriter writer = new StringWriter();
    for (Diag diag : diagnostics) {
        writer.write("Error --\n");
        for (String line : diag.getMessage(null).split("\\r?\\n")) {
            writer.write(String.format("%s\n", line));
        }
    }
    return writer.toString().replace("\n", System.lineSeparator());
}
 

@Override
public Resource transform(HttpServletRequest request, Resource resource, ResourceTransformerChain transformerChain)
		throws IOException {

	resource = transformerChain.transform(request, resource);

	String filename = resource.getFilename();
	if (!"css".equals(StringUtils.getFilenameExtension(filename))) {
		return resource;
	}

	if (logger.isTraceEnabled()) {
		logger.trace("Transforming resource: " + resource);
	}

	byte[] bytes = FileCopyUtils.copyToByteArray(resource.getInputStream());
	String content = new String(bytes, DEFAULT_CHARSET);

	Set<CssLinkInfo> infos = new HashSet<CssLinkInfo>(8);
	for (CssLinkParser parser : this.linkParsers) {
		parser.parseLink(content, infos);
	}

	if (infos.isEmpty()) {
		if (logger.isTraceEnabled()) {
			logger.trace("No links found.");
		}
		return resource;
	}

	List<CssLinkInfo> sortedInfos = new ArrayList<CssLinkInfo>(infos);
	Collections.sort(sortedInfos);

	int index = 0;
	StringWriter writer = new StringWriter();
	for (CssLinkInfo info : sortedInfos) {
		writer.write(content.substring(index, info.getStart()));
		String link = content.substring(info.getStart(), info.getEnd());
		String newLink = null;
		if (!hasScheme(link)) {
			newLink = resolveUrlPath(link, request, resource, transformerChain);
		}
		if (logger.isTraceEnabled()) {
			if (newLink != null && !link.equals(newLink)) {
				logger.trace("Link modified: " + newLink + " (original: " + link + ")");
			}
			else {
				logger.trace("Link not modified: " + link);
			}
		}
		writer.write(newLink != null ? newLink : link);
		index = info.getEnd();
	}
	writer.write(content.substring(index));

	return new TransformedResource(resource, writer.toString().getBytes(DEFAULT_CHARSET));
}
 

private void writeInterval(StringWriter writer,int intervalLen,ImageExt referencePage){
    writer.write(Integer.toString(intervalLen));
    writer.write(Page.extToChar(referencePage));
}