Example usage for java.io BufferedOutputStream BufferedOutputStream

Introduction

In this page you can find the example usage for java.io BufferedOutputStream BufferedOutputStream.

Prototype

public BufferedOutputStream(OutputStream out, int size) 

Source Link

Document

Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.

Usage

From source file:Main.java

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

    FileInputStream is = new FileInputStream("c:/test.txt");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(baos, 200);

}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    FileInputStream fis = new FileInputStream(zipname);
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
    ZipEntry entry;/* w  w  w. j a  v  a2s. c  om*/

    while ((entry = zis.getNextEntry()) != null) {
        System.out.println("Unzipping: " + entry.getName());

        int size;
        byte[] buffer = new byte[2048];

        FileOutputStream fos = new FileOutputStream(entry.getName());
        BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);

        while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
    }
    zis.close();
    fis.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    ZipFile zipFile = new ZipFile(zipname);
    Enumeration enumeration = zipFile.entries();
    while (enumeration.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enumeration.nextElement();
        System.out.println("Unzipping: " + zipEntry.getName());
        BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(zipEntry));
        int size;
        byte[] buffer = new byte[2048];
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(zipEntry.getName()),
                buffer.length);//w ww.  jav a2s  . c o m
        while ((size = bis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
        bis.close();
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "d.zip";
    CheckedInputStream checksum = new CheckedInputStream(new FileInputStream(zipname), new Adler32());
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(checksum));
    ZipEntry entry;// w w w. j av a 2 s.c  om

    while ((entry = zis.getNextEntry()) != null) {
        System.out.println("Unzipping: " + entry.getName());
        int size;
        byte[] buffer = new byte[2048];

        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(entry.getName()),
                buffer.length);
        while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
    }

    zis.close();
    System.out.println("Checksum = " + checksum.getChecksum().getValue());
}

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From source file:com.textocat.textokit.morph.opencorpora.resource.XmlDictionaryParserLauncher.java

public static void main(String[] args) throws Exception {
    XmlDictionaryParserLauncher cfg = new XmlDictionaryParserLauncher();
    new JCommander(cfg, args);

    MorphDictionaryImpl dict = new MorphDictionaryImpl();
    DictionaryExtension ext = cfg.dictExtensionClass.newInstance();
    FileInputStream fis = FileUtils.openInputStream(cfg.dictXmlFile);
    try {//from   w w  w. ja v  a2s.  co  m
        new XmlDictionaryParser(dict, ext, fis).run();
    } finally {
        IOUtils.closeQuietly(fis);
    }

    log.info("Preparing to serialization...");
    long timeBefore = currentTimeMillis();
    OutputStream fout = new BufferedOutputStream(FileUtils.openOutputStream(cfg.outputFile), 8192 * 8);
    ObjectOutputStream out = new ObjectOutputStream(fout);
    try {
        out.writeObject(dict.getGramModel());
        out.writeObject(dict);
    } finally {
        out.close();
    }
    log.info("Serialization finished in {} ms.\nOutput size: {} bytes", currentTimeMillis() - timeBefore,
            cfg.outputFile.length());
}

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From source file:examples.RdfSerializationExample.java

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

    // Define where log messages go
    ExampleHelpers.configureLogging();/*from  w  w w.  j  a  v  a  2  s  .c o  m*/

    // Print information about this program
    printDocumentation();

    // Initialize sites; only needed to link to Wikipedia pages in RDF
    DumpProcessingController dumpProcessingController = new DumpProcessingController("wikidatawiki");
    dumpProcessingController.setOfflineMode(ExampleHelpers.OFFLINE_MODE);
    Sites sites = dumpProcessingController.getSitesInformation();

    // Prepare a compressed output stream to write the data to
    // (admittedly, this is slightly over-optimized for an example)
    OutputStream bufferedFileOutputStream = new BufferedOutputStream(
            ExampleHelpers.openExampleFileOuputStream("wikidata-simple-statements.nt.gz"), 1024 * 1024 * 5);
    GzipParameters gzipParameters = new GzipParameters();
    gzipParameters.setCompressionLevel(7);
    OutputStream compressorOutputStream = new GzipCompressorOutputStream(bufferedFileOutputStream,
            gzipParameters);
    OutputStream exportOutputStream = asynchronousOutputStream(compressorOutputStream);

    // Create a serializer processor
    RdfSerializer serializer = new RdfSerializer(RDFFormat.NTRIPLES, exportOutputStream, sites,
            PropertyRegister.getWikidataPropertyRegister());
    // Serialize simple statements (and nothing else) for all items
    serializer.setTasks(RdfSerializer.TASK_ITEMS | RdfSerializer.TASK_SIMPLE_STATEMENTS);

    // Run serialization
    serializer.open();
    ExampleHelpers.processEntitiesFromWikidataDump(serializer);
    serializer.close();
}

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From source file:com.textocat.textokit.morph.opencorpora.resource.XmlDictionaryPSP.java

public static void main(String[] args) throws Exception {
    XmlDictionaryPSP cfg = new XmlDictionaryPSP();
    new JCommander(cfg, args);

    MorphDictionaryImpl dict = new MorphDictionaryImpl();
    DictionaryExtension ext = cfg.dictExtensionClass.newInstance();
    FileInputStream fis = FileUtils.openInputStream(cfg.dictXmlFile);
    try {/*from  w ww.  j  av a 2 s .c  om*/
        new XmlDictionaryParser(dict, ext, fis).run();
    } finally {
        IOUtils.closeQuietly(fis);
    }

    System.out.println("Preparing to serialization...");
    long timeBefore = currentTimeMillis();
    OutputStream fout = new BufferedOutputStream(FileUtils.openOutputStream(cfg.outputJarFile), 8192 * 8);
    Manifest manifest = new Manifest();
    manifest.getMainAttributes().putValue(Attributes.Name.MANIFEST_VERSION.toString(), "1.0");
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_VERSION,
            dict.getVersion());
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_REVISION,
            dict.getRevision());
    manifest.getMainAttributes().putValue(OpencorporaMorphDictionaryAPI.ME_OPENCORPORA_DICTIONARY_VARIANT,
            cfg.variant);
    String dictEntryName = String.format(
            OpencorporaMorphDictionaryAPI.FILENAME_PATTERN_OPENCORPORA_SERIALIZED_DICT, dict.getVersion(),
            dict.getRevision(), cfg.variant);
    JarOutputStream jarOut = new JarOutputStream(fout, manifest);
    jarOut.putNextEntry(new ZipEntry(dictEntryName));
    ObjectOutputStream serOut = new ObjectOutputStream(jarOut);
    try {
        serOut.writeObject(dict.getGramModel());
        serOut.writeObject(dict);
    } finally {
        serOut.flush();
        jarOut.closeEntry();
        serOut.close();
    }
    System.out.println(String.format("Serialization finished in %s ms.\nOutput size: %s bytes",
            currentTimeMillis() - timeBefore, cfg.outputJarFile.length()));
}

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From source file:edu.jhu.hlt.concrete.ingesters.gigaword.GigawordGzProcessor.java

public static void main(String... args) {
    Thread.setDefaultUncaughtExceptionHandler(new LoggedUncaughtExceptionHandler());
    if (args.length != 2) {
        LOGGER.info("This program takes 2 arguments.");
        LOGGER.info("First: the path to a .gz file that is part of the English Gigaword v5 corpus.");
        LOGGER.info("Second: the path to the output file (a .tar.gz with communication files).");
        LOGGER.info("Example usage:");
        LOGGER.info("{} {} {}", GigawordGzProcessor.class.getName(), "/path/to/LDC/sgml/.gz",
                "/path/to/out.tar.gz");
        System.exit(1);//from   w  w w  . j  a  v  a2 s  .c  om
    }

    String inPathStr = args[0];
    String outPathStr = args[1];

    Path inPath = Paths.get(inPathStr);
    if (!Files.exists(inPath))
        LOGGER.error("Input path {} does not exist. Try again with the right path.", inPath.toString());

    Path outPath = Paths.get(outPathStr);
    Optional<Path> parent = Optional.ofNullable(outPath.getParent());
    // lambda does not allow caught exceptions.
    if (parent.isPresent()) {
        if (!Files.exists(outPath.getParent())) {
            LOGGER.info("Attempting to create output directory: {}", outPath.toString());
            try {
                Files.createDirectories(outPath);
            } catch (IOException e) {
                LOGGER.error("Caught exception creating output directory.", e);
            }
        }
    }

    GigawordDocumentConverter conv = new GigawordDocumentConverter();
    Iterator<Communication> iter = conv.gzToStringIterator(inPath);
    try (OutputStream os = Files.newOutputStream(outPath);
            BufferedOutputStream bos = new BufferedOutputStream(os, 1024 * 8 * 16);
            GzipCompressorOutputStream gout = new GzipCompressorOutputStream(bos);
            TarArchiver archiver = new TarArchiver(gout);) {
        while (iter.hasNext()) {
            Communication c = iter.next();
            LOGGER.info("Adding Communication {} [UUID: {}] to archive.", c.getId(),
                    c.getUuid().getUuidString());
            archiver.addEntry(new ArchivableCommunication(c));
        }
    } catch (IOException e) {
        LOGGER.error("Caught IOException during output.", e);
    }
}

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From source file:Main.java

public static OutputStream U7create(String nm) throws IOException {
    String fname = getSystemPath(nm);
    return new BufferedOutputStream(new FileOutputStream(fname), 0x8000);
}

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From source file:Main.java

public static byte[] getContent(Document doc) throws Exception {
    ByteArrayOutputStream writer = new ByteArrayOutputStream();
    transformer.transform(new DOMSource(doc), new StreamResult(new BufferedOutputStream(writer, 65536)));
    writer.flush();/*from   w  w  w  . ja  va2  s  .c om*/
    return writer.toByteArray();
}

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