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:org.kurento.test.services.KmsService.java

private void deleteFolderAndContent(Path folder) throws IOException {
    if (folder != null) {
        Files.walkFileTree(folder, new SimpleFileVisitor<Path>() {
            @Override/*  ww  w.  ja va  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.schedulesdirect.grabber.Grabber.java

private void removeExpiredSchedules(FileSystem vfs) throws IOException, JSONException {
    final int[] i = new int[] { 0 };
    final Path root = vfs.getPath("schedules");
    Files.walkFileTree(root, new FileVisitor<Path>() {

        @Override// w ww  .j  a  v a2 s  .  co  m
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return !Files.isSameFile(dir, root) ? FileVisitResult.SKIP_SUBTREE : FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            try (InputStream ins = Files.newInputStream(file)) {
                JSONArray sched = Config.get().getObjectMapper()
                        .readValue(IOUtils.toString(ins, ZipEpgClient.ZIP_CHARSET.toString()), JSONObject.class)
                        .getJSONArray("programs");
                if (isScheduleExpired(sched)) {
                    Files.delete(file);
                    ++i[0];
                }
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
            return FileVisitResult.CONTINUE;
        }

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

    });
    LOG.info(String.format("Removed %d expired schedule(s).", i[0]));
}

From source file:org.openecomp.sdc.asdctool.impl.DataMigration.java

/**
 * the method creates all the files and dir which holds them. in case the
 * files exist they will not be created again.
 * //from w w w.  java  2  s . co m
 * @param appConfigDir
 *            the base path under which the output dir will be created and
 *            the export result files the created filesa are named according
 *            to the name of the table into which it will be imported.
 * @param exportToEs
 *            if true all the export files will be recreated
 * @returnthe returns a map of tables and the files representing them them
 */
private Map<Table, File> createOutPutFiles(String appConfigDir, boolean exportToEs) {
    Map<Table, File> result = new EnumMap<Table, File>(Table.class);
    File outputDir = new File(appConfigDir + "/output/");
    if (!createOutPutFolder(outputDir)) {
        return null;
    }
    for (Table table : Table.values()) {
        File file = new File(outputDir + "/" + table.getTableDescription().getTableName());
        if (exportToEs) {
            try {
                if (file.exists()) {
                    Files.delete(file.toPath());
                }
            } catch (IOException e) {
                log.error("failed to delete output file " + file.getAbsolutePath(), e);
                return null;
            }
            file = new File(outputDir + "/" + table.getTableDescription().getTableName());
        }
        if (!file.exists()) {
            try {
                file.createNewFile();
            } catch (IOException e) {
                log.error("failed to create output file " + file.getAbsolutePath(), e);
                return null;
            }
        }
        result.put(table, file);

    }
    return result;
}

From source file:de.blizzy.backup.backup.BackupRun.java

private void removeFiles(Set<FileEntry> files) {
    for (FileEntry file : files) {
        File f = Utils.toBackupFile(file.backupPath, settings.getOutputFolder());
        Path path = f.toPath();//w  ww .  ja  v  a2 s  .com
        try {
            Files.delete(path);
        } catch (IOException e) {
            BackupPlugin.getDefault().logError("error deleting file: " + file.backupPath, e); //$NON-NLS-1$
            fireBackupErrorOccurred(e, BackupErrorEvent.Severity.WARNING);
        }

        removeFoldersIfEmpty(f.getParentFile());

        database.factory().delete(Tables.FILES).where(Tables.FILES.ID.equal(Integer.valueOf(file.id)))
                .execute();
    }
}

From source file:de.blizzy.backup.backup.BackupRun.java

private void removeFoldersIfEmpty(File folder) {
    File outputFolder = new File(settings.getOutputFolder());
    if (Utils.isParent(new FileSystemFileOrFolder(outputFolder), new FileSystemFileOrFolder(folder))
            && (folder.list().length == 0)) {

        try {//w w w . j a  v  a2s  .c om
            BackupPlugin.getDefault().logMessage("deleting empty folder: " + folder.getAbsolutePath()); //$NON-NLS-1$
            Files.delete(folder.toPath());

            File parentFolder = folder.getParentFile();
            removeFoldersIfEmpty(parentFolder);
        } catch (IOException e) {
            BackupPlugin.getDefault().logError("error deleting folder: " + folder.getAbsolutePath(), e); //$NON-NLS-1$
            fireBackupErrorOccurred(e, BackupErrorEvent.Severity.WARNING);
        }
    }
}

From source file:org.schedulesdirect.grabber.Grabber.java

private void removeUnusedPrograms(FileSystem vfs) throws IOException {
    final int[] i = new int[] { 0 };
    final Path root = vfs.getPath("programs");
    Files.walkFileTree(root, new FileVisitor<Path>() {

        @Override/*from w w  w  .  j a  va2s  . c  o m*/
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return !Files.isSameFile(root, dir) ? FileVisitResult.SKIP_SUBTREE : FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            String id = file.getName(file.getNameCount() - 1).toString();
            id = id.substring(0, id.indexOf('.'));
            if (!activeProgIds.contains(id)) {
                if (LOG.isDebugEnabled())
                    LOG.debug(String.format("CacheCleaner: Unused '%s'", id));
                Files.delete(file);
                ++i[0];
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
            return FileVisitResult.CONTINUE;
        }

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

    });
    LOG.info(String.format("Removed %d unused program(s).", i[0]));
}

From source file:edu.utah.bmi.ibiomes.lite.IBIOMESLiteManager.java

/**
 * Remove existing XML and HTML files//from   ww w.  ja va  2  s. c o m
 * @throws Exception 
 */
public int cleanData() throws Exception {

    int nDelete = 0;
    if (this.outputToConsole)
        System.out.println("Removing experiments...");

    //remove main XML file
    Path indexXmlPath = Paths.get(publicHtmlFolder + PATH_FOLDER_SEPARATOR + IBIOMES_LITE_XML_INDEX);
    if (Files.exists(indexXmlPath, LinkOption.NOFOLLOW_LINKS))
        Files.delete(indexXmlPath);
    this.experimentListXml = new XmlExperimentListFile(
            publicHtmlFolder + PATH_FOLDER_SEPARATOR + IBIOMES_LITE_XML_INDEX);

    //remove main HTML file
    Path indexHtmlPath = Paths.get(publicHtmlFolder + PATH_FOLDER_SEPARATOR + IBIOMES_LITE_HTML_INDEX);
    if (Files.exists(indexHtmlPath, LinkOption.NOFOLLOW_LINKS))
        Files.delete(indexHtmlPath);

    //remove experiments data (XML, HTML, files)
    File htmlDir = new File(publicHtmlFolder + PATH_FOLDER_SEPARATOR + IBIOMES_LITE_EXPERIMENT_DIR);
    File[] htmlFiles = htmlDir.listFiles();
    for (int f = 0; f < htmlFiles.length; f++) {
        Utils.removeDirectoryRecursive(Paths.get(htmlFiles[f].getCanonicalPath()));
        nDelete++;
    }
    return nDelete;
}

From source file:org.schedulesdirect.grabber.Grabber.java

private void removeIgnoredStations(FileSystem vfs) throws IOException {
    final int[] i = new int[] { 0 };
    final Path root = vfs.getPath("schedules");
    Files.walkFileTree(root, new FileVisitor<Path>() {

        @Override//from   ww w  . jav  a  2  s. c o m
        public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
            return !Files.isSameFile(root, dir) ? FileVisitResult.SKIP_SUBTREE : FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
            String id = file.getName(file.getNameCount() - 1).toString();
            id = id.substring(0, id.indexOf('.'));
            if (stationList != null && !stationList.contains(id)) {
                if (LOG.isDebugEnabled())
                    LOG.debug(String.format("CacheCleaner: Remove '%s'", id));
                Files.delete(file);
                ++i[0];
            }
            return FileVisitResult.CONTINUE;
        }

        @Override
        public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
            return FileVisitResult.CONTINUE;
        }

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

    });
    LOG.info(String.format("Removed %d ignored station(s).", i[0]));
}

From source file:com.streamsets.pipeline.stage.origin.logtail.TestFileTailSource.java

@Test
public void testTailFilesDeletion() throws Exception {
    File testDataDir = new File("target", UUID.randomUUID().toString());
    File testDataDir1 = new File(testDataDir, UUID.randomUUID().toString());
    File testDataDir2 = new File(testDataDir, UUID.randomUUID().toString());
    Assert.assertTrue(testDataDir1.mkdirs());
    Assert.assertTrue(testDataDir2.mkdirs());
    Path file1 = new File(testDataDir1, "log1.txt").toPath();
    Path file2 = new File(testDataDir2, "log2.txt").toPath();
    Files.write(file1, Arrays.asList("Hello"), UTF8);
    Files.write(file2, Arrays.asList("Hola"), UTF8);

    FileInfo fileInfo1 = new FileInfo();
    fileInfo1.fileFullPath = testDataDir.getAbsolutePath() + "/*/log*.txt";
    fileInfo1.fileRollMode = FileRollMode.REVERSE_COUNTER;
    fileInfo1.firstFile = "";
    fileInfo1.patternForToken = "";

    FileTailConfigBean conf = new FileTailConfigBean();
    conf.dataFormat = DataFormat.TEXT;/*from www .  j a va 2 s .  com*/
    conf.multiLineMainPattern = "";
    conf.batchSize = 25;
    conf.maxWaitTimeSecs = 1;
    conf.fileInfos = Arrays.asList(fileInfo1);
    conf.postProcessing = PostProcessingOptions.NONE;
    conf.dataFormatConfig.textMaxLineLen = 1024;

    FileTailSource source = new FileTailSource(conf, SCAN_INTERVAL);
    SourceRunner runner = new SourceRunner.Builder(FileTailDSource.class, source).addOutputLane("lane")
            .addOutputLane("metadata").build();
    try {
        runner.runInit();
        StageRunner.Output output = runner.runProduce(null, 10);
        output = runner.runProduce(output.getNewOffset(), 10);
        Assert.assertTrue(output.getNewOffset().contains("log1.txt"));
        Assert.assertTrue(output.getNewOffset().contains("log2.txt"));
        Files.delete(file1);
        Files.delete(testDataDir1.toPath());
        output = runner.runProduce(output.getNewOffset(), 10);
        output = runner.runProduce(output.getNewOffset(), 10);
        Assert.assertFalse(output.getNewOffset().contains("log1.txt"));
        Assert.assertTrue(output.getNewOffset().contains("log2.txt"));
    } finally {
        runner.runDestroy();
    }
}

From source file:com.spectralogic.ds3client.integration.Smoke_Test.java

@Test
public void partialObjectGetOverChunkBoundry() throws IOException, XmlProcessingException {
    final String bucketName = "partialGetOverBoundry";
    final String testFile = "testObject.txt";
    final Path filePath = Files.createTempFile("ds3", testFile);
    final int seed = 12345;
    LOG.info("Test file: " + filePath.toAbsolutePath());
    try {/*from   ww w  . j  a va 2s  . c o  m*/
        HELPERS.ensureBucketExists(bucketName, envDataPolicyId);

        final int objectSize = PutBulkJobSpectraS3Request.MIN_UPLOAD_SIZE_IN_BYTES * 2;

        final List<Ds3Object> objs = Lists.newArrayList(new Ds3Object(testFile, objectSize));

        final Ds3ClientHelpers.Job putJob = HELPERS.startWriteJob(bucketName, objs, WriteJobOptions.create()
                .withMaxUploadSize(PutBulkJobSpectraS3Request.MIN_UPLOAD_SIZE_IN_BYTES));

        putJob.transfer(new Ds3ClientHelpers.ObjectChannelBuilder() {
            @Override
            public SeekableByteChannel buildChannel(final String key) throws IOException {
                final byte[] randomData = IOUtils.toByteArray(new RandomDataInputStream(seed, objectSize));
                final ByteBuffer randomBuffer = ByteBuffer.wrap(randomData);

                final ByteArraySeekableByteChannel channel = new ByteArraySeekableByteChannel(objectSize);
                channel.write(randomBuffer);

                return channel;

            }
        });

        final List<Ds3Object> partialObjectGet = Lists.newArrayList();
        partialObjectGet.add(new PartialDs3Object(testFile,
                Range.byPosition(PutBulkJobSpectraS3Request.MIN_UPLOAD_SIZE_IN_BYTES - 100,
                        PutBulkJobSpectraS3Request.MIN_UPLOAD_SIZE_IN_BYTES + 99)));

        final Ds3ClientHelpers.Job getJob = HELPERS.startReadJob(bucketName, partialObjectGet);

        getJob.transfer(new Ds3ClientHelpers.ObjectChannelBuilder() {
            @Override
            public SeekableByteChannel buildChannel(final String key) throws IOException {
                return Files.newByteChannel(filePath, StandardOpenOption.WRITE, StandardOpenOption.CREATE);
            }
        });

        assertThat(Files.size(filePath), is(200L));

    } finally {
        Files.delete(filePath);
        deleteAllContents(client, bucketName);
    }
}