Example usage for java.io FileInputStream close

Introduction

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

Prototype

public void close() throws IOException 

Source Link

Document

Closes this file input stream and releases any system resources associated with the stream.

Usage

From source file:com.viddu.handlebars.HandlebarsFileUtil.java

/**
 * Utility method to get contents of the File.
 * //from w  w w.  ja v  a  2 s .  co  m
 * @param inputFile
 * @return
 * @throws IOException
 */
public static String getFileContents(File inputFile) throws IOException {
    FileInputStream stream = new FileInputStream(inputFile);
    try {
        FileChannel fc = stream.getChannel();
        MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
        return Charset.defaultCharset().decode(bb).toString();
    } finally {
        stream.close();
    }

}

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From source file:Main.java

public static String calcHash(File file, String algo) throws Exception {
    MessageDigest digester = MessageDigest.getInstance(algo);

    FileInputStream is = new FileInputStream(file);
    DigestInputStream dis;/*  w  w w  .  java  2 s . c om*/
    try {
        dis = new DigestInputStream(is, digester);

        for (byte[] buffer = new byte[1024 * 4]; dis.read(buffer) >= 0;) {
            // just read it
        }
    } finally {
        is.close();
    }

    byte[] digest = digester.digest();

    StringBuffer hash = new StringBuffer(digest.length * 2);

    for (int i = 0; i < digest.length; i++) {
        int b = digest[i] & 0xFF;

        if (b < 0x10) {
            hash.append('0');
        }

        hash.append(Integer.toHexString(b));
    }

    return hash.toString();
}

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From source file:Main.java

public static byte[] getBytesFromFile(File file) {
    byte[] buffer = null;
    try {/*from   www. j a v a  2 s.  co m*/
        if (file.exists()) {
            FileInputStream fis = new FileInputStream(file);
            ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);
            byte[] b = new byte[1000];
            int n;
            while ((n = fis.read(b)) != -1) {
                bos.write(b, 0, n);
            }
            fis.close();
            bos.close();
            buffer = bos.toByteArray();
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return buffer;
}

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From source file:com.linkedin.databus.bootstrap.utils.BootstrapDropSource.java

@SuppressWarnings("static-access")
public static int parseArgs(String[] args) throws IOException {
    CommandLineParser cliParser = new GnuParser();

    Option helpOption = OptionBuilder.withLongOpt(HELP_OPT_LONG_NAME).withDescription("Help screen")
            .create(HELP_OPT_CHAR);/*from w w w  .  j  a  v  a2 s.  c  om*/

    Option sourceIdOption = OptionBuilder.withLongOpt(SOURCE_ID_OPT_LONG_NAME)
            .withDescription("Source ID for which tables need to be dropped").hasArg().withArgName("Source ID")
            .create(SOURCE_ID_OPT_CHAR);

    Option dbOption = OptionBuilder.withLongOpt(BOOTSTRAP_DB_PROPS_OPT_LONG_NAME)
            .withDescription("Bootstrap producer properties to use").hasArg().withArgName("property_file")
            .create(BOOTSTRAP_DB_PROP_OPT_CHAR);

    Option cmdLinePropsOption = OptionBuilder.withLongOpt(CMD_LINE_PROPS_OPT_LONG_NAME)
            .withDescription("Cmd line override of config properties. Semicolon separated.").hasArg()
            .withArgName("Semicolon_separated_properties").create(CMD_LINE_PROPS_OPT_CHAR);

    Option log4jPropsOption = OptionBuilder.withLongOpt(LOG4J_PROPS_OPT_LONG_NAME)
            .withDescription("Log4j properties to use").hasArg().withArgName("property_file")
            .create(LOG4J_PROPS_OPT_CHAR);

    Options options = new Options();
    options.addOption(helpOption);
    options.addOption(sourceIdOption);
    options.addOption(dbOption);
    options.addOption(cmdLinePropsOption);
    options.addOption(log4jPropsOption);

    CommandLine cmd = null;
    try {
        cmd = cliParser.parse(options, args);
    } catch (ParseException pe) {
        LOG.error("Bootstrap Physical Config: failed to parse command-line options.", pe);
        throw new RuntimeException("Bootstrap Physical Config: failed to parse command-line options.", pe);
    }

    if (cmd.hasOption(LOG4J_PROPS_OPT_CHAR)) {
        String log4jPropFile = cmd.getOptionValue(LOG4J_PROPS_OPT_CHAR);
        PropertyConfigurator.configure(log4jPropFile);
        LOG.info("Using custom logging settings from file " + log4jPropFile);
    } else {
        PatternLayout defaultLayout = new PatternLayout("%d{ISO8601} +%r [%t] (%p) {%c} %m%n");
        ConsoleAppender defaultAppender = new ConsoleAppender(defaultLayout);

        Logger.getRootLogger().removeAllAppenders();
        Logger.getRootLogger().addAppender(defaultAppender);

        LOG.info("Using default logging settings");
    }

    if (cmd.hasOption(HELP_OPT_CHAR)) {
        printCliHelp(options);
        System.exit(0);
    }

    if (!cmd.hasOption(SOURCE_ID_OPT_CHAR))
        throw new RuntimeException("Source ID is not provided");

    if (!cmd.hasOption(BOOTSTRAP_DB_PROP_OPT_CHAR))
        throw new RuntimeException("Bootstrap config is not provided");

    String propFile = cmd.getOptionValue(BOOTSTRAP_DB_PROP_OPT_CHAR);
    LOG.info("Loading bootstrap DB config from properties file " + propFile);

    _sBootstrapConfigProps = new Properties();
    FileInputStream f = new FileInputStream(propFile);
    try {
        _sBootstrapConfigProps.load(f);
    } finally {
        f.close();
    }

    if (cmd.hasOption(CMD_LINE_PROPS_OPT_CHAR)) {
        String cmdLinePropString = cmd.getOptionValue(CMD_LINE_PROPS_OPT_CHAR);
        updatePropsFromCmdLine(_sBootstrapConfigProps, cmdLinePropString);
    }

    return Integer.parseInt(cmd.getOptionValue(SOURCE_ID_OPT_CHAR));
}

---

From source file:Main.java

public static byte[] getBytesFromFile(String fileFullPath) {
    byte[] buffer = null;
    try {/*from  w ww.ja v  a  2 s  .  co  m*/
        File file = new File(fileFullPath);
        if (file.exists()) {
            FileInputStream fis = new FileInputStream(file);
            ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);
            byte[] b = new byte[1000];
            int n;
            while ((n = fis.read(b)) != -1) {
                bos.write(b, 0, n);
            }
            fis.close();
            bos.close();
            buffer = bos.toByteArray();
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return buffer;
}

---

From source file:Main.java

static void addDir(File dirObj, ZipOutputStream out) throws IOException {
    File[] files = dirObj.listFiles();
    byte[] tmpBuf = new byte[1024];

    for (int i = 0; i < files.length; i++) {
        if (files[i].isDirectory()) {
            addDir(files[i], out);//from ww w .j av  a  2s .  c om
            continue;
        }
        FileInputStream in = new FileInputStream(files[i].getAbsolutePath());
        System.out.println(" Adding: " + files[i].getAbsolutePath());
        out.putNextEntry(new ZipEntry(files[i].getAbsolutePath()));
        int len;
        while ((len = in.read(tmpBuf)) > 0) {
            out.write(tmpBuf, 0, len);
        }
        out.closeEntry();
        in.close();
    }
}

---

From source file:com.openmeap.util.SSLUtils.java

public static KeyStore loadKeyStore(String keyStoreFileName, String password)
        throws CertificateException, IOException, NoSuchAlgorithmException, KeyStoreException {

    KeyStore ks = null;/*from  w  w  w.  j  a v a2  s  .c om*/
    FileInputStream fis = null;
    try {
        fis = new FileInputStream(keyStoreFileName);
        ks = loadKeyStore(fis, password);
    } finally {
        if (fis != null) {
            fis.close();
        }
    }
    return ks;
}

---

From source file:com.amazonaws.kinesis.dataviz.kinesisclient.KinesisApplication.java

/**
 * @param propertiesFile//from   w ww.  j  a  va 2s  .  com
 * @throws IOException Thrown when we run into issues reading properties
 */
private static void loadProperties(String propertiesFile) throws IOException {
    FileInputStream inputStream = new FileInputStream(propertiesFile);
    Properties properties = new Properties();
    try {
        properties.load(inputStream);
    } finally {
        inputStream.close();
    }

    String appNameOverride = properties.getProperty(ConfigKeys.APPLICATION_NAME_KEY);
    if (appNameOverride != null) {
        applicationName = appNameOverride;
    }
    LOG.info("Using application name " + applicationName);

    String streamNameOverride = properties.getProperty(ConfigKeys.STREAM_NAME_KEY);
    if (streamNameOverride != null) {
        streamName = streamNameOverride;
    }
    LOG.info("Using stream name " + streamName);

    String kinesisEndpointOverride = properties.getProperty(ConfigKeys.KINESIS_ENDPOINT_KEY);
    if (kinesisEndpointOverride != null) {
        kinesisEndpoint = kinesisEndpointOverride;
    }
    LOG.info("Using Kinesis endpoint " + kinesisEndpoint);

    String initialPositionOverride = properties.getProperty(ConfigKeys.INITIAL_POSITION_IN_STREAM_KEY);
    if (initialPositionOverride != null) {
        initialPositionInStream = InitialPositionInStream.valueOf(initialPositionOverride);
    }
    LOG.info("Using initial position " + initialPositionInStream.toString()
            + " (if a checkpoint is not found).");

    String redisEndpointOverride = properties.getProperty(ConfigKeys.REDIS_ENDPOINT);
    if (redisEndpointOverride != null) {
        redisEndpoint = redisEndpointOverride;
    }
    LOG.info("Using Redis endpoint " + redisEndpoint);

    String redisPortOverride = properties.getProperty(ConfigKeys.REDIS_PORT);
    if (redisPortOverride != null) {
        try {
            redisPort = Integer.parseInt(redisPortOverride);
        } catch (Exception e) {

        }
    }
    LOG.info("Using Redis port " + redisPort);

}

---

From source file:com.comcast.cdn.traffic_control.traffic_monitor.util.PeriodicResourceUpdater.java

static boolean filesEqual(final File a, final File b) throws IOException {
    if (!a.exists() && !b.exists()) {
        return true;
    }// www . j  ava 2  s .  c om
    if (!a.exists() || !b.exists()) {
        return false;
    }
    if (a.length() != b.length()) {
        return false;
    }
    FileInputStream fis = new FileInputStream(a);
    final String md5a = org.apache.commons.codec.digest.DigestUtils.md5Hex(fis);
    fis.close();
    fis = new FileInputStream(b);
    final String md5b = org.apache.commons.codec.digest.DigestUtils.md5Hex(fis);
    fis.close();
    if (md5a.equals(md5b)) {
        return true;
    }
    return false;
}

---

From source file:Main.java

/**
 * Copy file from oldPath to newPath//  w ww  . j  a v  a2  s .  co m
 *
 * @param oldPath
 * @param newPath
 */
public static void copyFile(String oldPath, String newPath) {
    try {
        int byteread = 0;
        File oldfile = new File(oldPath);
        File newfile = new File(newPath);
        if (newfile.exists()) {
            newfile.delete();
        }
        newfile.createNewFile();
        if (oldfile.exists()) {
            FileInputStream inStream = new FileInputStream(oldPath);
            FileOutputStream outStream = new FileOutputStream(newPath);
            byte[] buffer = new byte[1024];
            while ((byteread = inStream.read(buffer)) > 0) {
                outStream.write(buffer, 0, byteread);
            }
            inStream.close();
            outStream.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

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