Example usage for java.nio.file Files lines

Introduction

In this page you can find the example usage for java.nio.file Files lines.

Prototype

public static Stream<String> lines(Path path) throws IOException 

Source Link

Document

Read all lines from a file as a Stream .

Usage

From source file:com.difference.historybook.importer.HistoryRecordJSONSerialization.java

/**
 * Stream a JSON file of HistoryRecords//from w  w w  .  ja va  2 s . co  m
 * 
 * @param filename filename to read
 * @return a stream of HistoryRecord objects parsed from file
 * @throws IOException
 */
public static Stream<HistoryRecord> parseFile(String filename) throws IOException {
    return Files.lines(Paths.get(filename)).map(HistoryRecordJSONSerialization::parse);
}

---

From source file:edu.vassar.cs.cmpu331.tvi.Main.java

private static void renumber(String filename) throws IOException {
    Path file = Paths.get(filename);
    if (Files.notExists(file)) {
        System.out.println("File not found: " + filename);
        return;//from w w  w  .  j a v  a2s.  c  om
    }
    System.out.println("Renumbering " + filename);
    Function<String, String> trim = s -> {
        int i = s.indexOf(':');
        if (i > 0) {
            return s.substring(i + 1).trim();
        }
        return s.trim();
    };
    List<String> list = Files.lines(file).filter(line -> !line.startsWith("CODE")).map(line -> trim.apply(line))
            .collect(Collectors.toList());
    int size = list.size();
    PrintWriter writer = new PrintWriter(Files.newBufferedWriter(file));
    //      PrintStream writer = System.out;
    writer.println("CODE");
    IntStream.range(0, size).forEach(index -> {
        String line = list.get(index);

        writer.println(index + ": " + line);
    });
    writer.close();
    System.out.println("Done.");
}

---

From source file:se.sawano.java.security.otp.rfc6238.ReferenceDataRepository.java

private static Stream<String> readLines() {
    try {/*  ww w . ja  v  a 2s . c o  m*/
        @SuppressWarnings("ConstantConditions")
        final String file = ReferenceDataRepository.class.getClassLoader()
                .getResource("reference-data-rfc6238.txt").getFile();
        final Path p = new File(file).toPath();
        return Files.lines(p);
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

---

From source file:org.apache.samza.sql.testutil.SqlFileParser.java

public static List<String> parseSqlFile(String fileName) {
    Validate.notEmpty(fileName, "fileName cannot be empty.");
    List<String> sqlLines;
    try {//from   www .ja  v a 2  s.co  m
        sqlLines = Files.lines(Paths.get(fileName)).collect(Collectors.toList());
    } catch (IOException e) {
        String msg = String.format("Unable to parse the sql file %s", fileName);
        LOG.error(msg, e);
        throw new SamzaException(msg, e);
    }
    List<String> sqlStmts = new ArrayList<>();
    String lastStatement = "";
    for (String sqlLine : sqlLines) {
        String sql = sqlLine.trim();
        if (sql.toLowerCase().startsWith(INSERT_CMD)) {
            if (StringUtils.isNotEmpty(lastStatement)) {
                sqlStmts.add(lastStatement);
            }

            lastStatement = sql;
        } else if (StringUtils.isNotBlank(sql) && !sql.startsWith(SQL_COMMENT_PREFIX)) {
            lastStatement = String.format("%s %s", lastStatement, sql);
        }
    }

    if (!StringUtils.isWhitespace(lastStatement)) {
        sqlStmts.add(lastStatement);
    }
    return sqlStmts;
}

---

From source file:net.kemitix.checkstyle.ruleset.builder.DefaultRuleReadmeLoader.java

@Override
public Stream<String> load(final Rule rule) {
    if (rule.isEnabled()) {
        final Path resolve = templateProperties.getReadmeFragments().resolve(rule.getName() + ".md");
        log.info("Loading fragment: {}", resolve);
        try {/*w  w w .  j  a  va 2s . c  o  m*/
            return Stream.concat(Stream.of(formatRuleHeader(rule)), Files.lines(resolve));
        } catch (IOException e) {
            throw new ReadmeFragmentNotFoundException(rule.getName(), e);
        }
    } else {
        return Stream.of(formatRuleHeader(rule), "", rule.getReason());
    }
}

---

From source file:org.apache.geode.BundledJarsJUnitTest.java

@Before
public void loadExpectedJars() throws IOException {
    String expectedJarFile = TestUtil.getResourcePath(BundledJarsJUnitTest.class, "/expected_jars.txt");

    expectedJars = Files.lines(Paths.get(expectedJarFile)).collect(Collectors.toSet());
}

---

From source file:org.hawkular.alerts.actions.webhook.WebHooks.java

public static synchronized void loadFile() throws IOException {
    File f = new File(instance.webhooksFile);
    Path path = f.toPath();/*from  w w  w.ja  v a2  s  .c  om*/
    StringBuilder fullFile = new StringBuilder();
    Files.lines(path).forEach(s -> fullFile.append(s));
    log.debug("Reading webhooks... " + fullFile.toString());
    instance.webhooks = instance.mapper.readValue(fullFile.toString(), Map.class);
}

---

From source file:alliance.docs.DocumentationTest.java

@Test
public void testDocumentationIncludes() throws IOException, URISyntaxException {
    Stream<Path> docs = Files.list(getPath()).filter(f -> f.toString().endsWith(HTML_DIRECTORY));

    assertThat("Unresolved directive, FreeMarker reference or broken image found.", docs.noneMatch(f -> {
        try (Stream<String> lines = Files.lines(f)) {
            return lines.anyMatch(s -> s.contains(UNRESOLVED_DIRECTORY_MSG)
                    || s.toLowerCase().contains(FREEMARKER_MSG) || s.contains(BASE64_MISSING));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }//from  w  w w.  j  ava 2  s.co  m
    }));
}

---

From source file:com.crossover.trial.weather.util.AirportLoader.java

@Override
public void run(ApplicationArguments args) throws Exception {
    if (args.containsOption("airports") && !args.getOptionValues("airports").isEmpty()) {
        File dataFile = new File(args.getOptionValues("airports").get(0));
        if (dataFile.canRead() && dataFile.isFile() && dataFile.exists()) {
            log.info("Loading airports from [{}]", dataFile);

            try (Stream<String> lines = Files.lines(dataFile.toPath())) {
                lines.map(Row::new).filter(Row::expectedTotalColumns).filter(Row::expectedColumnsFilled)
                        .map(Row::parse).filter(airport -> airport != null).forEach(airportRepository::save);
            }//from  w  w w  .  j  a  v a2  s . c o m

        } else
            log.error("Specified airports data file is not readable [{}]", dataFile.toPath());

    }
}

---

From source file:com.schnobosoft.semeval.cortical.Util.java

/**
 * Read a file that contains one score per line, as a SemEval gold {@code .gs} file. Empty lines
 * are allowed and are read as missing values.
 *
 * @param scoresFile the scores file to read
 * @return a list of optional double values of the same length as the input file. For an empty
 * line, a {@link Optional#EMPTY} object is added to the output list.
 * @throws IOException//from  w ww  .j  a  va 2s . com
 */
public static List<Optional> readScoresFile(File scoresFile) throws IOException {
    if (!scoresFile.getName().startsWith(GS_FILE_PREFIX)) {
        throw new IllegalArgumentException(scoresFile + " does not match expected pattern.");
    }
    LOG.info("Reading scores file " + scoresFile);

    return Files.lines(scoresFile.toPath())
            .map(line -> line.isEmpty() ? Optional.empty() : Optional.of(Double.valueOf(line)))
            .collect(Collectors.toList());
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• »