Example usage for java.nio.file Files createTempFile

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

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Introduction

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

Prototype

public static Path createTempFile(String prefix, String suffix, FileAttribute<?>... attrs) throws IOException

Source Link

Document

Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {

    Path rootDirectory = FileSystems.getDefault().getPath("C:/home/docs");

    Path tempDirectory = Files.createTempDirectory(rootDirectory, "");
    System.out.println("Temporary directory created successfully!");
    String dirPath = tempDirectory.toString();
    System.out.println(dirPath);//w  ww .ja v  a 2s  .c  o m
    Path tempFile = Files.createTempFile(tempDirectory, "", "");
    System.out.println("Temporary file created successfully!");
    String filePath = tempFile.toString();
    System.out.println(filePath);
}

From source file:Main.java

public static void main(String[] args) {

    Path basedir = FileSystems.getDefault().getPath("C:/tutorial/tmp");
    String tmp_file_prefix = "Swing_";
    String tmp_file_sufix = ".txt";

    //get the default temporary folders path
    String default_tmp = System.getProperty("java.io.tmpdir");
    System.out.println(default_tmp);

    try {/*from ww w.ja v  a 2  s  . co m*/
        //create a tmp file in a the base dir
        Path tmp_3 = Files.createTempFile(basedir, tmp_file_prefix, tmp_file_sufix);
        System.out.println("TMP: " + tmp_3.toString());

    } catch (IOException e) {
        System.err.println(e);
    }
}

From source file:de.tudarmstadt.ukp.dkpro.discourse.pdtbparser.PDTBParserWrapper.java

public static void main(String[] args) throws Exception {
    final PDTBParserWrapper pdtbParserWrapper = new PDTBParserWrapper();
    Path out = Files.createTempFile(pdtbParserWrapper.tempDirectory, "out", ".xml");
    pdtbParserWrapper.run(new File("src/main/resources/test302.txt"), out.toFile());
    pdtbParserWrapper.clean();//w  w w  .java 2 s .co m
}

From source file:hdfs.MiniHDFS.java

public static void main(String[] args) throws Exception {
    if (args.length != 1 && args.length != 3) {
        throw new IllegalArgumentException(
                "Expected: MiniHDFS <baseDirectory> [<kerberosPrincipal> <kerberosKeytab>], " + "got: "
                        + Arrays.toString(args));
    }//from  w w  w  . j  av  a 2s  .  c o  m
    boolean secure = args.length == 3;

    // configure Paths
    Path baseDir = Paths.get(args[0]);
    // hadoop-home/, so logs will not complain
    if (System.getenv("HADOOP_HOME") == null) {
        Path hadoopHome = baseDir.resolve("hadoop-home");
        Files.createDirectories(hadoopHome);
        System.setProperty("hadoop.home.dir", hadoopHome.toAbsolutePath().toString());
    }
    // hdfs-data/, where any data is going
    Path hdfsHome = baseDir.resolve("hdfs-data");

    // configure cluster
    Configuration cfg = new Configuration();
    cfg.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, hdfsHome.toAbsolutePath().toString());
    // lower default permission: TODO: needed?
    cfg.set(DFSConfigKeys.DFS_DATANODE_DATA_DIR_PERMISSION_KEY, "766");

    // optionally configure security
    if (secure) {
        String kerberosPrincipal = args[1];
        String keytabFile = args[2];

        cfg.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
        cfg.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION, "true");
        cfg.set(DFSConfigKeys.DFS_NAMENODE_KERBEROS_PRINCIPAL_KEY, kerberosPrincipal);
        cfg.set(DFSConfigKeys.DFS_DATANODE_KERBEROS_PRINCIPAL_KEY, kerberosPrincipal);
        cfg.set(DFSConfigKeys.DFS_WEB_AUTHENTICATION_KERBEROS_PRINCIPAL_KEY, kerberosPrincipal);
        cfg.set(DFSConfigKeys.DFS_NAMENODE_KEYTAB_FILE_KEY, keytabFile);
        cfg.set(DFSConfigKeys.DFS_DATANODE_KEYTAB_FILE_KEY, keytabFile);
        cfg.set(DFSConfigKeys.DFS_NAMENODE_ACLS_ENABLED_KEY, "true");
        cfg.set(DFSConfigKeys.DFS_BLOCK_ACCESS_TOKEN_ENABLE_KEY, "true");
        cfg.set(DFSConfigKeys.IGNORE_SECURE_PORTS_FOR_TESTING_KEY, "true");
    }

    UserGroupInformation.setConfiguration(cfg);

    // TODO: remove hardcoded port!
    MiniDFSCluster.Builder builder = new MiniDFSCluster.Builder(cfg);
    if (secure) {
        builder.nameNodePort(9998);
    } else {
        builder.nameNodePort(9999);
    }
    MiniDFSCluster dfs = builder.build();

    // Configure contents of the filesystem
    org.apache.hadoop.fs.Path esUserPath = new org.apache.hadoop.fs.Path("/user/elasticsearch");
    try (FileSystem fs = dfs.getFileSystem()) {

        // Set the elasticsearch user directory up
        fs.mkdirs(esUserPath);
        if (UserGroupInformation.isSecurityEnabled()) {
            List<AclEntry> acls = new ArrayList<>();
            acls.add(new AclEntry.Builder().setType(AclEntryType.USER).setName("elasticsearch")
                    .setPermission(FsAction.ALL).build());
            fs.modifyAclEntries(esUserPath, acls);
        }

        // Install a pre-existing repository into HDFS
        String directoryName = "readonly-repository";
        String archiveName = directoryName + ".tar.gz";
        URL readOnlyRepositoryArchiveURL = MiniHDFS.class.getClassLoader().getResource(archiveName);
        if (readOnlyRepositoryArchiveURL != null) {
            Path tempDirectory = Files.createTempDirectory(MiniHDFS.class.getName());
            File readOnlyRepositoryArchive = tempDirectory.resolve(archiveName).toFile();
            FileUtils.copyURLToFile(readOnlyRepositoryArchiveURL, readOnlyRepositoryArchive);
            FileUtil.unTar(readOnlyRepositoryArchive, tempDirectory.toFile());

            fs.copyFromLocalFile(true, true,
                    new org.apache.hadoop.fs.Path(
                            tempDirectory.resolve(directoryName).toAbsolutePath().toUri()),
                    esUserPath.suffix("/existing/" + directoryName));

            FileUtils.deleteDirectory(tempDirectory.toFile());
        }
    }

    // write our PID file
    Path tmp = Files.createTempFile(baseDir, null, null);
    String pid = ManagementFactory.getRuntimeMXBean().getName().split("@")[0];
    Files.write(tmp, pid.getBytes(StandardCharsets.UTF_8));
    Files.move(tmp, baseDir.resolve(PID_FILE_NAME), StandardCopyOption.ATOMIC_MOVE);

    // write our port file
    tmp = Files.createTempFile(baseDir, null, null);
    Files.write(tmp, Integer.toString(dfs.getNameNodePort()).getBytes(StandardCharsets.UTF_8));
    Files.move(tmp, baseDir.resolve(PORT_FILE_NAME), StandardCopyOption.ATOMIC_MOVE);
}

From source file:org.schedulesdirect.api.utils.HttpUtils.java

static private void setupAudit() {
    try {/*from  w ww  .j ava  2  s  . c o  m*/
        Path root = Paths.get(Config.get().captureRoot().getAbsolutePath(), "http");
        Files.createDirectories(root);
        AUDIT_LOG = Files.createTempFile(root,
                String.format("%s_", new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())), ".log");
        auditSetup = true;
    } catch (IOException e) {
        LOG.error("Unable to create HTTP audit log!", e);
        AUDIT_LOG = null;
    }
}

From source file:org.opendatakit.briefcase.reused.UncheckedFiles.java

public static Path createTempFile(String prefix, String suffix, FileAttribute<?>... attrs) {
    try {//from w w w. j  a va 2  s. co  m
        return Files.createTempFile(prefix, suffix, attrs);
    } catch (IOException e) {
        throw new UncheckedIOException(e);
    }
}

From source file:org.sonar.api.utils.internal.DefaultTempFolder.java

private static Path createTempFile(Path baseDir, String prefix, String suffix) {
    try {/*from   ww  w .  j a  v a2 s  .c om*/
        return Files.createTempFile(baseDir, prefix, suffix);
    } catch (IOException e) {
        throw new IllegalStateException("Failed to create temp file", e);
    }
}

From source file:org.roda_project.commons_ip.utils.Utils.java

public static Path copyResourceFromClasspathToDir(Class<?> resourceClass, Path dir, String resourceTempSuffix,
        String resourcePath) throws IOException, InterruptedException {
    try {/*from www  .  j  a v a2  s  .co m*/
        Path resource = Files.createTempFile(dir, "", resourceTempSuffix);
        InputStream inputStream = resourceClass.getResourceAsStream(resourcePath);
        OutputStream outputStream = Files.newOutputStream(resource);
        IOUtils.copy(inputStream, outputStream);
        inputStream.close();
        outputStream.close();
        return resource;
    } catch (ClosedByInterruptException e) {
        throw new InterruptedException();
    }
}

From source file:org.hara.sodra.utils.SodraUtilsTest.java

@Before
public void setUp() throws Exception {
    this.environmentVariables.set(SodraConstants.SODRA_DATA_DIR, "/tmp/sodra/data");
    Path solrHome = SodraUtils.getSolrHome();
    Files.createDirectories(solrHome);
    Path solrTemplateConfDir = Paths.get(solrHome.getParent().toString(), "index_template_config", "conf");
    Files.createDirectories(solrTemplateConfDir);
    Files.createTempFile(solrTemplateConfDir, "prefix.", ".suffix");
}

From source file:org.forgerock.openidm.maintenance.upgrade.FileStateCheckerTest.java

@BeforeMethod
public void setupTempChecksumFile() throws IOException, NoSuchAlgorithmException {
    tempFile = Files.createTempFile(tempPath, null, null);
}