Example usage for java.nio.file Files delete

List of usage examples for java.nio.file Files delete

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Introduction

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

Prototype

public static void delete(Path path) throws IOException

Source Link

Document

Deletes a file.

Usage

From source file:energy.usef.environment.tool.util.FileUtil.java

public static void removeFolders(String folderName) throws IOException {
    if (folderName == null || folderName.isEmpty() || folderName.trim().equals("\\")
            || folderName.trim().equals("/")) {
        LOGGER.warn("Prevent to delete folders recursively from the root location.");
    } else {//from  w w  w .  j a  v  a2s  .co m
        Path directory = Paths.get(folderName);
        Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                Files.delete(file);
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
                LOGGER.debug("Removing folder " + dir);
                Files.delete(dir);
                return FileVisitResult.CONTINUE;
            }
        });
    }
}

From source file:de.teamgrit.grit.report.TexGenerator.java

/**
 * This method creates a TeX file from a Submission instance.
 * /*from   w  w  w  .  j  ava 2s  .  com*/
 * @param submission
 *            A SubmissionObj containing the information that the content
 *            gets generated from.
 * @param outdir
 *            the output directory
 * @param courseName
 *            the name of the course the exercise belongs to
 * @param exerciseName
 *            the name of the exercise
 * @return The Path to the created TeX file.
 * @throws IOException
 *             If something goes wrong when writing.
 */
public static Path generateTex(final Submission submission, final Path outdir, final String courseName,
        final String exerciseName) throws IOException {

    final File location = outdir.toFile();

    File file = new File(location, submission.getStudent().getName() + ".report.tex");
    if (Files.exists(file.toPath())) {
        Files.delete(file.toPath());
    }
    file.createNewFile();

    writePreamble(file);
    writeHeader(file, submission, courseName, exerciseName);
    writeOverview(file, submission);
    writeTestResult(file, submission);

    // if there are compile errors, put these in the .tex file instead of
    // JUnit Test result
    CheckingResult checkingResult = submission.getCheckingResult();
    if (!(checkingResult.getCompilerOutput().isCleanCompile())) {
        writeCompilerErrors(file, submission);
    } else {
        TestOutput testResults = checkingResult.getTestResults();
        if ((testResults.getPassedTestCount() < testResults.getTestCount()) && testResults.getDidTest()) {
            writeFailedTests(file, submission);
        }
    }

    writeCompilerOutput(file, submission);
    writeSourceCode(file, submission);
    writeClosing(file);

    return file.toPath();
}

From source file:maku.mvc.services.ImageService.java

private static boolean delete(String fileName, String path) {
    try {//from w w  w.ja va2  s  .com
        Files.delete(Paths.get(path + "//" + fileName));
        return true;
    } catch (IOException ex) {
        return false;
    }
}

From source file:ch.puzzle.itc.mobiliar.business.utils.SecureFileLoaderTest.java

@After
public void tearDown() throws IOException {
    Files.delete(f);
}

From source file:org.apache.metron.common.cli.ConfigurationManagerIntegrationTest.java

private void cleanDir(File rootDir) throws IOException {
    if (rootDir.isDirectory()) {
        try {/*w w w .j a v  a2 s .co m*/
            Files.delete(Paths.get(rootDir.toURI()));
        } catch (DirectoryNotEmptyException dne) {
            for (File f : rootDir.listFiles()) {
                cleanDir(f);
            }
            rootDir.delete();
        }
    } else {
        rootDir.delete();
    }
}

From source file:com.ibm.watson.app.qaclassifier.ScanLogs.java

public static void getBluemixLogs(String user, String password, String target, String org, String space,
        String app) throws Exception {
    CloudFoundryClient client;/*from w ww .ja  v a  2s.  c o  m*/
    if (user == null || user.isEmpty()) {
        System.out.println("No username/password provided, using saved credentials");
        client = new CloudFoundryClient(new CloudCredentials(new TokensFile().retrieveToken(new URI(target))),
                new URL(target), org, space);
    } else {
        client = new CloudFoundryClient(new CloudCredentials(user, password), new URL(target), org, space);
    }

    client.openFile(app, 0, "logs/" + LOG_FILE, new ClientHttpResponseCallback() {
        @Override
        public void onClientHttpResponse(ClientHttpResponse clientHttpResponse) throws IOException {
            Path logDestination = Paths.get(LOG_FILE);
            if (Files.exists(logDestination)) {
                Files.delete(logDestination);
            }
            Files.copy(clientHttpResponse.getBody(), logDestination);
        }
    });
}

From source file:fi.hsl.parkandride.ExportQTypes.java

private static void deleteOldQTypes(Path packageDir) throws IOException {
    Files.walkFileTree(packageDir, new SimpleFileVisitor<Path>() {
        @Override/*from   www  .  j a  v  a  2 s. c  om*/
        public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
            if (path.getFileName().toString().startsWith(NAME_PREFIX)) {
                Files.delete(path);
            }
            return FileVisitResult.CONTINUE;
        }
    });
}

From source file:io.crate.testing.Utils.java

public static void deletePath(Path path) throws IOException {
    Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
        @Override//  w w w.j ava  2  s. c om
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            Files.delete(file);
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
            Files.delete(dir);
            return FileVisitResult.CONTINUE;
        }

    });
}

From source file:org.elasticsearch.qa.die_with_dignity.DieWithDignityIT.java

public void testDieWithDignity() throws Exception {
    // deleting the PID file prevents stopping the cluster from failing since it occurs if and only if the PID file exists
    final Path pidFile = PathUtils.get(System.getProperty("pidfile"));
    final List<String> pidFileLines = Files.readAllLines(pidFile);
    assertThat(pidFileLines, hasSize(1));
    final int pid = Integer.parseInt(pidFileLines.get(0));
    Files.delete(pidFile);
    IOException e = expectThrows(IOException.class,
            () -> client().performRequest(new Request("GET", "/_die_with_dignity")));
    Matcher<IOException> failureMatcher = instanceOf(ConnectionClosedException.class);
    if (Constants.WINDOWS) {
        /*//from   w  ww  . j  a va2 s. c  o  m
         * If the other side closes the connection while we're waiting to fill our buffer
         * we can get IOException with the message below. It seems to only come up on
         * Windows and it *feels* like it could be a ConnectionClosedException but
         * upstream does not consider this a bug:
         * https://issues.apache.org/jira/browse/HTTPASYNC-134
         *
         * So we catch it here and consider it "ok".
        */
        failureMatcher = either(failureMatcher).or(
                hasToString(containsString("An existing connection was forcibly closed by the remote host")));
    }
    assertThat(e, failureMatcher);

    // the Elasticsearch process should die and disappear from the output of jps
    assertBusy(() -> {
        final String jpsPath = PathUtils.get(System.getProperty("runtime.java.home"), "bin/jps").toString();
        final Process process = new ProcessBuilder().command(jpsPath).start();
        assertThat(process.waitFor(), equalTo(0));
        try (InputStream is = process.getInputStream();
                BufferedReader in = new BufferedReader(new InputStreamReader(is, "UTF-8"))) {
            String line;
            while ((line = in.readLine()) != null) {
                final int currentPid = Integer.parseInt(line.split("\\s+")[0]);
                assertThat(line, pid, not(equalTo(currentPid)));
            }
        }
    });

    // parse the logs and ensure that Elasticsearch died with the expected cause
    final List<String> lines = Files.readAllLines(PathUtils.get(System.getProperty("log")));

    final Iterator<String> it = lines.iterator();

    boolean fatalErrorOnTheNetworkLayer = false;
    boolean fatalErrorInThreadExiting = false;

    while (it.hasNext() && (fatalErrorOnTheNetworkLayer == false || fatalErrorInThreadExiting == false)) {
        final String line = it.next();
        if (line.contains("fatal error on the network layer")) {
            fatalErrorOnTheNetworkLayer = true;
        } else if (line.matches(".*\\[ERROR\\]\\[o.e.b.ElasticsearchUncaughtExceptionHandler\\] \\[node-0\\]"
                + " fatal error in thread \\[Thread-\\d+\\], exiting$")) {
            fatalErrorInThreadExiting = true;
            assertTrue(it.hasNext());
            assertThat(it.next(), equalTo("java.lang.OutOfMemoryError: die with dignity"));
        }
    }

    assertTrue(fatalErrorOnTheNetworkLayer);
    assertTrue(fatalErrorInThreadExiting);
}

From source file:net.minecrell.serverlistplus.canary.SnakeYAML.java

@SneakyThrows
public static void load(Plugin plugin) {
    try { // Check if it is already loaded
        Class.forName("org.yaml.snakeyaml.Yaml");
        return;/* www  .  java2s .co  m*/
    } catch (ClassNotFoundException ignored) {
    }

    Path path = Paths.get("lib", SNAKE_YAML_JAR);

    if (Files.notExists(path)) {
        Files.createDirectories(path.getParent());

        plugin.getLogman().info("Downloading SnakeYAML...");

        URL url = new URL(SNAKE_YAML);
        MessageDigest sha1 = MessageDigest.getInstance("SHA-1");

        try (ReadableByteChannel source = Channels.newChannel(new DigestInputStream(url.openStream(), sha1));
                FileChannel out = FileChannel.open(path, StandardOpenOption.CREATE_NEW,
                        StandardOpenOption.WRITE)) {
            out.transferFrom(source, 0, Long.MAX_VALUE);
        }

        if (!new String(Hex.encodeHex(sha1.digest())).equals(EXPECTED_HASH)) {
            Files.delete(path);
            throw new IllegalStateException(
                    "Downloaded SnakeYAML, but checksum check failed. Please try again later.");
        }

        plugin.getLogman().info("Successfully downloaded!");
    }

    loadJAR(path);
}