Java Code Examples for java.nio.charset.StandardCharsets

@Test
public void testSend_binary() {
    final EngineIoWebSocket webSocketConnection = Mockito.mock(EngineIoWebSocket.class);
    final WebSocket webSocket = Mockito.spy(new WebSocket(webSocketConnection));

    final byte[] binaryData = "Test string".getBytes(StandardCharsets.UTF_8);
    final Packet<?> packet = new Packet<>(Packet.MESSAGE, binaryData);
    webSocket.send(new ArrayList<Packet<?>>() {{
        add(packet);
    }});

    Mockito.verify(webSocket, Mockito.times(1)).send(Mockito.anyList());

    ServerParser.encodePacket(packet, true, data -> {
        try {
            Mockito.verify(webSocketConnection, Mockito.times(1))
                    .write(Mockito.eq((byte[]) data));
        } catch (IOException ignore) {
        }
    });
}
 

/**
 * Generates the OpenAPI spec file based on the sources provided.
 *
 * @param sourcesPaths
 *            the source root to be analyzed
 * @param specOutputFile
 *            the target file to write the generation output to
 */
public void generateOpenApiSpec(Collection<Path> sourcesPaths,
        Path specOutputFile) {
    sourcesPaths.forEach(generator::addSourcePath);
    log.info("Parsing java files from {}", sourcesPaths);
    OpenAPI openAPI = generator.generateOpenApi();
    try {
        if (openAPI.getPaths().size() > 0) {
            log.info("writing file {}", specOutputFile);
            FileUtils.writeStringToFile(specOutputFile.toFile(),
                    Json.pretty(openAPI), StandardCharsets.UTF_8);
        } else {
            log.info("There are no connect endpoints to generate.");
            FileUtils.deleteQuietly(specOutputFile.toFile());
        }
    } catch (IOException e) {
        String errorMessage = String.format(
                "Error while writing OpenAPI json file at %s",
                specOutputFile.toString());
        log.error(errorMessage, specOutputFile, e);
    }
}
 

/**
 * Used to load ./database.json into Cache2k. This is used when aerospike is not
 * present. This instance will handle its own cache, and do its own win
 * processing.
 *
 * @param fname String. The file name of the database.
 * @throws Exception on file or cache2k errors.
 */
private List<String> readDatabaseIntoCache(String fname) {
	List<String> camps = new ArrayList();
	try {
		String content = new String(Files.readAllBytes(Paths.get(fname)), StandardCharsets.UTF_8);
		content = substitute(content);

		logger.info("Sample DB: {}", content);
		Database db = Database.getInstance();

		List<Campaign> list = DbTools.mapper.readValue(content,
				DbTools.mapper.getTypeFactory().constructCollectionType(List.class, Campaign.class));
		db.update(list);
		for (Campaign camp : list) {
			camps.add(camp.adId);
		}
	} catch (Exception error) {
		error.printStackTrace();
		logger.warn("Initial database {} not read, error: {}", fname, error.getMessage());
	}
	return camps;
}
 

private UserDirectorySearchResult search(String by, String query) {
    UserDirectorySearchRequest request = new UserDirectorySearchRequest(query);
    request.setBy(by);
    try (CloseableHttpResponse httpResponse = client.execute(RestClientUtils.post(cfg.getEndpoints().getDirectory(), request))) {
        int status = httpResponse.getStatusLine().getStatusCode();
        if (status < 200 || status >= 300) {
            throw new InternalServerError("REST backend: Error: " + IOUtils.toString(httpResponse.getEntity().getContent(), StandardCharsets.UTF_8));
        }

        UserDirectorySearchResult response = parser.parse(httpResponse, UserDirectorySearchResult.class);
        for (UserDirectorySearchResult.Result result : response.getResults()) {
            result.setUserId(MatrixID.asAcceptable(result.getUserId(), mxCfg.getDomain()).getId());
        }

        return response;
    } catch (IOException e) {
        throw new InternalServerError("REST backend: I/O error: " + e.getMessage());
    }
}
 

@Test
public void testLoadResourceRestrictedFailure() throws Exception {
  exception.expect(IllegalArgumentException.class);

  Path fooFile = Paths.get(resourcesDir.getPath(), "foo.txt");
  Files.write(fooFile, "Hello\n".getBytes(StandardCharsets.UTF_8));
  Files.setPosixFilePermissions(fooFile, ImmutableSet.of(PosixFilePermission.OTHERS_READ));

  RuntimeEL.loadRuntimeConfiguration(runtimeInfo);

  try {
    RuntimeEL.loadResourceRaw("foo.txt", true);
  } finally {
    Files.deleteIfExists(fooFile);
  }
}
 

@VisibleForTesting
static void generateCommonSection(String rootDir, String outputDirectory, OptionsClassLocation[] locations, String pathPrefix) throws IOException, ClassNotFoundException {
	List<OptionWithMetaInfo> commonOptions = new ArrayList<>(32);
	for (OptionsClassLocation location : locations) {
		commonOptions.addAll(findCommonOptions(rootDir, location.getModule(), location.getPackage(), pathPrefix));
	}
	commonOptions.sort((o1, o2) -> {
		int position1 = o1.field.getAnnotation(Documentation.CommonOption.class).position();
		int position2 = o2.field.getAnnotation(Documentation.CommonOption.class).position();
		if (position1 == position2) {
			return o1.option.key().compareTo(o2.option.key());
		} else {
			return Integer.compare(position1, position2);
		}
	});

	String commonHtmlTable = toHtmlTable(commonOptions);
	Files.write(Paths.get(outputDirectory, COMMON_SECTION_FILE_NAME), commonHtmlTable.getBytes(StandardCharsets.UTF_8));
}
 

@Override
public String decryptValue(final String password, final String userId, final String value) {
	if (password != null && userId != null && value!=null) {
		try {			
			final Key buildKey = buildKey(userId, password);
			final ByteBuffer byteBuffer = ByteBuffer.wrap(Hex.decode(value.getBytes(StandardCharsets.UTF_8)));
			final int ivLength = byteBuffer.getInt();
			final byte[] iv = new byte[ivLength];
			byteBuffer.get(iv);
			final byte[] cipherText = new byte[byteBuffer.remaining()];
			byteBuffer.get(cipherText);
			
			final Cipher cipher = Cipher.getInstance(AES_GCM_NO_PADDING);
			cipher.init(Cipher.DECRYPT_MODE, buildKey, new GCMParameterSpec(TAG_BIT_LENGTH, iv));
			return new String(cipher.doFinal(cipherText),StandardCharsets.UTF_8);
		} catch (final GeneralSecurityException e) {
			LOGGER.error(DECRYPT_VALUE,e);
			return null;
		}		
	} else {
		return null;
	}

}
 

@Override
public void writeTo(
    final Message m,
    final Class<?> type,
    final Type genericType,
    final Annotation[] annotations,
    final MediaType mediaType,
    final MultivaluedMap<String, Object> httpHeaders,
    final OutputStream entityStream)
    throws IOException {

  if (mediaType.getSubtype().contains("text-format")) {
    entityStream.write(m.toString().getBytes(StandardCharsets.UTF_8));
  } else if (mediaType.getSubtype().contains("json-format")) {
    final String formatted = JsonFormat.printer().omittingInsignificantWhitespace().print(m);
    entityStream.write(formatted.getBytes(StandardCharsets.UTF_8));
  } else {
    m.writeTo(entityStream);
  }
}
 

/**
 * Converts a Duration object to a string the database understands.
 * @param input a Duration
 * @return a string on ISO8601 format
 */
public static byte[] fromInterval(Object input) {
  if (input == null) {
    return new byte[]{};
  }

  if (input instanceof Duration) {
    Duration d = (Duration) input;

    if (d.isZero()) {
      return "0".getBytes(StandardCharsets.UTF_8);
    }

    return d.toString().getBytes(StandardCharsets.UTF_8);
  }

  throw new RuntimeException(input.getClass().getName()
      + " can't be converted to byte[] to send as a Duration to server");
}
 

/** This function fetches the topN Bing search results for the current instance of NameSearchResult object
 * and updates the "topSearchResults" instance variable. Existing value is overridden.
 * @param formattedName name that will be used as search query, lowercase formatted
 * @param topN number of Web results to fetch from Bing Search API
 * @return returns a set of SearchResults containing the topN Bing search results
 * @throws IOException
 */
private Set<SearchResult> fetchTopSearchResults(String formattedName, Integer topN)
    throws IOException {
  LOGGER.debug("Updating topSearchResults for name: %s.", formattedName);
  Set<SearchResult> topSearchResults = new HashSet<>();
  final String queryTerm = URLEncoder.encode(formattedName, StandardCharsets.UTF_8.name());
  // The Bing search API cannot return more than 100 results at once, but it is possible to iterate
  // through the results.
  // For example, if we need topN = 230 results, we will issue the following queries
  // (count and offset are URL parameters)
  // QUERY 1: count = 100, offset = 0
  // QUERY 2: count = 100, offset = 100
  // QUERY 3: count = 30, offset = 200
  Integer iterations = topN / MAX_RESULTS_PER_CALL;
  Integer remainder = topN % MAX_RESULTS_PER_CALL;
  for (int i = 0; i < iterations; i++) {
    topSearchResults.addAll(fetchSearchResults(queryTerm, MAX_RESULTS_PER_CALL, MAX_RESULTS_PER_CALL * i));
  }
  if (remainder > 0) {
    topSearchResults.addAll(fetchSearchResults(queryTerm, remainder, MAX_RESULTS_PER_CALL * iterations));
  }
  return topSearchResults;
}
 

private Delivery sendMessageToClient(String deliveryTag, int messageBody)
{
    byte[] tag = deliveryTag.getBytes(StandardCharsets.UTF_8);

    Message m = Proton.message();
    m.setBody(new AmqpValue(messageBody));

    byte[] encoded = new byte[BUFFER_SIZE];
    int len = m.encode(encoded, 0, BUFFER_SIZE);

    assertTrue("given array was too small", len < BUFFER_SIZE);

    Sender serverSender = getServer().getSender();
    Delivery serverDelivery = serverSender.delivery(tag);
    int sent = serverSender.send(encoded, 0, len);

    assertEquals("sender unable to send all data at once as assumed for simplicity", len, sent);

    boolean senderAdvanced = serverSender.advance();
    assertTrue("sender has not advanced", senderAdvanced);

    return serverDelivery;
}
 

private void openScriptEditor(final String name, final String type) throws IOException {
    ImplementationTO node = implementationManagerService.read(type, name);
    String groovyScriptsDirName = System.getProperty("java.io.tmpdir") + "/Groovy/" + node.getType() + '/';
    File groovyScriptsDir = new File(groovyScriptsDirName);
    if (!groovyScriptsDir.exists()) {
        groovyScriptsDir.mkdirs();
    }
    File file = new File(groovyScriptsDirName + name + ".groovy");
    FileWriter fw = new FileWriter(file, StandardCharsets.UTF_8);
    fw.write(node.getBody());
    fw.flush();
    FileObject fob = FileUtil.toFileObject(file.getAbsoluteFile());
    DataObject data = DataObject.find(fob);
    data.getLookup().lookup(OpenCookie.class).open();
    data.addPropertyChangeListener(event -> {
        if (DataObject.PROP_MODIFIED.equals(event.getPropertyName())) {
            //save item remotely
            LOG.info(String.format("Saving Groovy template [%s]", name));
            saveContent();
        }
    });
}
 

@Test
public void classLevelJsonView() throws Exception {
	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	JacksonViewBean bean = new JacksonViewBean();
	bean.setWithView1("with");
	bean.setWithView2("with");
	bean.setWithoutView("without");

	MappingJacksonValue jacksonValue = new MappingJacksonValue(bean);
	jacksonValue.setSerializationView(MyJacksonView3.class);
	this.converter.writeInternal(jacksonValue, null, outputMessage);

	String result = outputMessage.getBodyAsString(StandardCharsets.UTF_8);
	assertThat(result, not(containsString("\"withView1\":\"with\"")));
	assertThat(result, not(containsString("\"withView2\":\"with\"")));
	assertThat(result, containsString("\"withoutView\":\"without\""));
}
 

public static List<String> firstNLines(File f, int n){
    List<String> lines = new ArrayList<>();
    try(InputStream is = new BufferedInputStream(new FileInputStream(f))){
        LineIterator lineIter = IOUtils.lineIterator(is, StandardCharsets.UTF_8);
        try{
            for( int i=0; i<n && lineIter.hasNext(); i++ ){
                lines.add(lineIter.next());
            }
        } finally {
            lineIter.close();
        }
        return lines;
    } catch (IOException e){
        throw new RuntimeException(e);
    }
}
 

/**
 * Read the given stream in to a String. This method will close the stream as well.
 *
 * @param stream the input stream.
 * @return the string built out of the data available in the given stream.
 */
private static String readString(InputStream stream) throws IOException {
    if (stream == null) {
        return null;
    }
    try {
        ByteArrayOutputStream result = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int length;
        while ((length = stream.read(buffer)) != -1) {
            result.write(buffer, 0, length);
        }
        return result.toString(StandardCharsets.UTF_8.name());
    } finally {
        stream.close();
    }
}
 

@RequestMapping(value = "/import", method = RequestMethod.POST)
public String uploadJsonFile(UserImportExportCommand command, RedirectAttributes redirect) {
    try {
        MultipartFile myFile = command.getJsonFile();
        if (myFile == null || myFile.getBytes().length == 0) {
            messageUtil.addErrorMsg(redirect, "user.importexport.upload.msg.noFileGiven");
            return REDIRECT_SHOW_PAGE;
        }

        if (!CONTENT_TYPE_JSON.equals(myFile.getContentType())) {
            messageUtil.addErrorMsg(redirect, "user.importexport.upload.msg.noJsonFile");
            return REDIRECT_SHOW_PAGE;
        }

        int importedCount = userImportExportService.importUsers(new String(myFile.getBytes(), StandardCharsets.UTF_8));

        messageUtil.addInfoMsg(redirect, "user.importexport.upload.msg.saved",importedCount);
    } catch (IOException | ExcelReadingException e) {
        LOG.error(e.getMessage(), e);
        messageUtil.addErrorMsg(redirect, "user.importexport.upload.msg.failed", e.getMessage());
    }

    return REDIRECT_SHOW_PAGE;
}
 

private String extractPayload(HttpHeaders headers, @Nullable HttpContent content) {
  StringBuilder messageBuilder = new StringBuilder();
  if (headers != null) {
    appendMapAsString(messageBuilder, headers);
  }
  if (content != null) {
    messageBuilder.append(String.format("%nContent:%n"));
    if (content instanceof UrlEncodedContent) {
      UrlEncodedContent encodedContent = (UrlEncodedContent) content;
      appendMapAsString(messageBuilder, Data.mapOf(encodedContent.getData()));
    } else if (content != null) {
      ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
      try {
        content.writeTo(byteStream);
        messageBuilder.append(byteStream.toString(StandardCharsets.UTF_8.name()));
      } catch (IOException e) {
        messageBuilder.append("Unable to read request content due to exception: " + e);
      }
    }
  }
  return messageBuilder.toString();
}
 

/**
 * Convert jsonSchema to json
 *
 * @param jsonSchema : jsonSchema to be converted to json
 * @param envVar     : environment variable where to store json
 * @throws Exception exception     *
 */
@Given("^I convert jsonSchema '(.+?)' to json( and save it in variable '(.+?)')?( and save it in file '(.+?)')?")
public void convertJSONSchemaToJSON(String jsonSchema, String envVar, String fileName) throws Exception {
    String json = commonspec.parseJSONSchema(new JSONObject(jsonSchema)).toString();
    if (envVar != null) {
        ThreadProperty.set(envVar, json);
    }
    if (fileName != null) {
        File tempDirectory = new File(System.getProperty("user.dir") + "/target/test-classes/");
        String absolutePathFile = tempDirectory.getAbsolutePath() + "/" + fileName;
        commonspec.getLogger().debug("Creating file {} in 'target/test-classes'", absolutePathFile);
        // Note that this Writer will delete the file if it exists
        Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(absolutePathFile), StandardCharsets.UTF_8));
        try {
            out.write(json);
        } catch (Exception e) {
            commonspec.getLogger().error("Custom file {} hasn't been created:\n{}", absolutePathFile, e.toString());
        } finally {
            out.close();
        }
    }
}
 

@ProcessElement
public void processElement(ProcessContext context) throws Exception {
  byte[] payload = context.element();
  LOG.debug("Sending message {}", new String(payload, StandardCharsets.UTF_8));
  connection.publish(
      spec.connectionConfiguration().getTopic(), payload, QoS.AT_LEAST_ONCE, false);
}
 

@Test
public void runXmlJob() throws Exception {
	File file = new File("target/out-xmlconfig.txt");
	file.delete();
	jobOperator.start("flatFileJobXml", "");
	while (jobRepository.getLastJobExecution("flatFileJobXml", new JobParameters()).getStatus().isRunning()) {
		Thread.sleep(100);
	}
	assertEquals(BatchStatus.COMPLETED,
			jobRepository.getLastJobExecution("flatFileJobXml", new JobParameters()).getStatus());
	assertEquals(10, FileUtils.readLines(file, StandardCharsets.UTF_8).size());
}
 

@Test
public void envelopeWrappedPublisher() {
    FakePublisher<ByteBuffer> fakePublisher = new FakePublisher<>();
    Publisher<ByteBuffer> wrappedPublisher =
        SdkPublishers.envelopeWrappedPublisher(fakePublisher, "prefix:", ":suffix");

    FakeByteBufferSubscriber fakeSubscriber = new FakeByteBufferSubscriber();
    wrappedPublisher.subscribe(fakeSubscriber);
    fakePublisher.publish(ByteBuffer.wrap("content".getBytes(StandardCharsets.UTF_8)));
    fakePublisher.complete();

    assertThat(fakeSubscriber.recordedEvents()).containsExactly("prefix:content", ":suffix");
}
 

@Test
public void filterUtf8() {
    parameters.remove("X-GP-HAS-FILTER");
    parameters.putSingle("X-GP-HAS-FILTER", "1");
    String isoString = new String("UTF8_計算機用語_00000000".getBytes(StandardCharsets.UTF_8), StandardCharsets.ISO_8859_1);
    parameters.putSingle("X-GP-FILTER", isoString);
    RequestContext context = parser.parseRequest(mockRequestHeaders, RequestType.FRAGMENTER);
    assertTrue(context.hasFilter());
    assertEquals("UTF8_計算機用語_00000000", context.getFilterString());
}
 

/**
 * Verify that the block disk cache can handle utf encoded strings.
 * <p>
 *
 * @throws Exception
 */
public void testUTF8ByteArray() throws Exception
{
    String string = "IÒtÎrn‚tiÙn‡lizÊti¯n";
    StringBuilder sb = new StringBuilder();
    sb.append(string);
    for (int i = 0; i < 4; i++)
    {
        sb.append(sb.toString()); // big string
    }
    string = sb.toString();
    // System.out.println( "The string contains " + string.length() + " characters" );
    byte[] bytes = string.getBytes(StandardCharsets.UTF_8);

    String cacheName = "testUTF8ByteArray";

    BlockDiskCacheAttributes cattr = getCacheAttributes();
    cattr.setCacheName(cacheName);
    cattr.setMaxKeySize(100);
    cattr.setBlockSizeBytes(200);
    cattr.setDiskPath("target/test-sandbox/BlockDiskCacheUnitTest");
    BlockDiskCache<String, byte[]> diskCache = new BlockDiskCache<>(cattr);

    // DO WORK
    diskCache.update(new CacheElement<>(cacheName, "x", bytes));

    // VERIFY
    assertNotNull(diskCache.get("x"));
    Thread.sleep(1000);
    ICacheElement<String, byte[]> afterElement = diskCache.get("x");
    assertNotNull(afterElement);
    // System.out.println( "afterElement = " + afterElement );
    byte[] after = afterElement.getVal();

    assertNotNull(after);
    assertEquals("wrong bytes after retrieval", bytes.length, after.length);
    // assertEquals( "wrong bytes after retrieval", bytes, after );
    // assertEquals( "wrong bytes after retrieval", string, new String( after, StandardCharsets.UTF_8 ) );

}
 

private static File calcLauncherDir( URL libUrl ) throws UnsupportedEncodingException {
  String libPath = URLDecoder.decode(libUrl.getFile(), StandardCharsets.UTF_8.name());
  File libFile = new File( libPath );
  File dir;
  if( libFile.isDirectory() ) {
    dir = libFile;
  } else {
    dir = libFile.getParentFile();
  }
  return dir;
}
 

public InputStream toHttpApiV2RequestStream() {
    HttpApiV2ProxyRequest req = toHttpApiV2Request();
    try {
        String requestJson = LambdaContainerHandler.getObjectMapper().writeValueAsString(req);
        return new ByteArrayInputStream(requestJson.getBytes(StandardCharsets.UTF_8));
    } catch (JsonProcessingException e) {
        return null;
    }
}
 

/** Fail by default when there's only date */
public void testJustDate() throws Exception {
  Path file = getWorkDir().resolve("one-line");
  PerfRunData runData = createPerfRunData(file, false, JustDateDocMaker.class.getName());
  WriteLineDocTask wldt = new WriteLineDocTask(runData);
  wldt.doLogic();
  wldt.close();
  
  try (BufferedReader br = Files.newBufferedReader(file, StandardCharsets.UTF_8)) {
    String line = br.readLine();
    assertHeaderLine(line);
    line = br.readLine();
    assertNull(line);
  }
}
 

/**
 * Convenience method to read PEM data from a file. The file encoding must be US_ASCII.
 *
 * @param file file to read from
 * @return PEM data from file
 */
public static String readPemStringFromFile(File file) {
    try {
        byte[] fileContents = Files.readAllBytes(file.toPath());
        return new String(fileContents, StandardCharsets.US_ASCII);
    } catch (IOException e) {
        throw new ImportException("Unable to read PEM-encoded data from file: " + file.getName());
    }
}
 

public static SchemaAndValue getJson()
{
  SnowflakeJsonConverter jsonConverter = new SnowflakeJsonConverter();

  String value = "{\"some_field\" : \"some_value\"}";
  byte[] valueContents = (value).getBytes(StandardCharsets.UTF_8);

  return jsonConverter.toConnectData(topic, valueContents);
}
 

/**
 * Ctor.
 * @param user The username.
 * @param pwd The user's password.
 * @param email The user's email address.
 * @param server Domain/IP without a protocol.
 * @checkstyle ParameterNumber (4 lines)
 */
public Credentials(
    final String user, final String pwd,
    final String email, final String server
) {
    this.encoded = () -> Base64.getEncoder().encodeToString(
        Json.createObjectBuilder()
            .add("username", user)
            .add("password", pwd)
            .add("email", email)
            .add("serveraddress", server)
            .build().toString()
            .getBytes(StandardCharsets.UTF_8)
    );
}
 

@Test
public void testBasicConversion() throws IOException {
    TestRunner runner = TestRunners.newTestRunner(ConvertCSVToAvro.class);
    runner.assertNotValid();
    runner.setProperty(ConvertCSVToAvro.SCHEMA, SCHEMA.toString());
    runner.assertValid();

    runner.enqueue(streamFor(CSV_CONTENT));
    runner.run();

    long converted = runner.getCounterValue("Converted records");
    long errors = runner.getCounterValue("Conversion errors");
    Assert.assertEquals("Should convert 2 rows", 2, converted);
    Assert.assertEquals("Should reject 1 row", 1, errors);

    runner.assertTransferCount("success", 1);
    runner.assertTransferCount("failure", 0);
    runner.assertTransferCount("incompatible", 1);

    MockFlowFile incompatible = runner.getFlowFilesForRelationship("incompatible").get(0);
    String failureContent = new String(runner.getContentAsByteArray(incompatible),
            StandardCharsets.UTF_8);
    Assert.assertEquals("Should reject an invalid string and double",
            CSV_CONTENT, failureContent);
    Assert.assertEquals("Should accumulate error messages",
            FAILURE_SUMMARY, incompatible.getAttribute("errors"));
}