Example usage for com.google.common.io Closeables close

List of usage examples for com.google.common.io Closeables close

  1. HOME
  2. Java
  3. com.google.common
  4. com.google.common.io.*
  5. Closeables
  6. close

Introduction

In this page you can find the example usage for com.google.common.io Closeables close.

Prototype

public static void close(@Nullable Closeable closeable, boolean swallowIOException) throws IOException

Source Link

Document

Closes a Closeable , with control over whether an IOException may be thrown.

Usage

From source file:com.b2international.snowowl.snomed.reasoner.net4j.SnomedOntologyExportRequest.java

@Override
protected Void confirming(final ExtendedDataInputStream in, final OMMonitor monitor) throws Exception {
    OutputStream outputStream = null;

    try {/*  ww w .  j  av  a 2 s  . c o  m*/
        final long length = in.readLong();
        outputStream = IOUtil.openOutputStream(exportPath);
        outputStream = new BufferedOutputStream(outputStream);
        IOUtil.copyBinary(in, outputStream, length);
    } finally {
        Closeables.close(outputStream, true);
        monitor.done();
    }

    return null;
}

From source file:org.apache.mahout.classifier.NewsgroupHelper.java

public static void countWords(Analyzer analyzer, Collection<String> words, Reader in,
        Multiset<String> overallCounts) throws IOException {
    TokenStream ts = analyzer.tokenStream("text", in);
    ts.addAttribute(CharTermAttribute.class);
    ts.reset();// w w  w  .  ja  v  a 2  s .com
    while (ts.incrementToken()) {
        String s = ts.getAttribute(CharTermAttribute.class).toString();
        words.add(s);
    }
    overallCounts.addAll(words);
    ts.end();
    Closeables.close(ts, true);
}

From source file:org.apache.mahout.utils.vectors.RowIdJob.java

@Override
public int run(String[] args) throws Exception {

    addInputOption();//from  w  ww  .  j av a  2  s .  c o  m
    addOutputOption();

    Map<String, List<String>> parsedArgs = parseArguments(args);
    if (parsedArgs == null) {
        return -1;
    }

    Configuration conf = getConf();
    FileSystem fs = FileSystem.get(conf);

    Path outputPath = getOutputPath();
    Path indexPath = new Path(outputPath, "docIndex");
    Path matrixPath = new Path(outputPath, "matrix");
    SequenceFile.Writer indexWriter = SequenceFile.createWriter(fs, conf, indexPath, IntWritable.class,
            Text.class);
    SequenceFile.Writer matrixWriter = SequenceFile.createWriter(fs, conf, matrixPath, IntWritable.class,
            VectorWritable.class);
    try {
        IntWritable docId = new IntWritable();
        int i = 0;
        int numCols = 0;
        for (Pair<Text, VectorWritable> record : new SequenceFileDirIterable<Text, VectorWritable>(
                getInputPath(), PathType.LIST, PathFilters.logsCRCFilter(), null, true, conf)) {
            VectorWritable value = record.getSecond();
            docId.set(i);
            indexWriter.append(docId, record.getFirst());
            matrixWriter.append(docId, value);
            i++;
            numCols = value.get().size();
        }

        log.info("Wrote out matrix with {} rows and {} columns to {}", i, numCols, matrixPath);
        return 0;
    } finally {
        Closeables.close(indexWriter, false);
        Closeables.close(matrixWriter, false);
    }
}

From source file:org.jclouds.examples.rackspace.cloudloadbalancers.UpdateLoadBalancers.java

/**
 * Always close your service when you're done with it.
 *
 * Note that closing quietly like this is not necessary in Java 7.
 * You would use try-with-resources in the main method instead.
 *//*  w w  w.  j  a  v a  2 s . c  o  m*/
public void close() throws IOException {
    Closeables.close(clbApi, true);
}

From source file:eu.redzoo.article.planetcassandra.reactive.EmbeddedCassandra.java

@SuppressWarnings("unchecked")
protected static int prepare() throws IOException {

    String cassandraDirName = "target" + File.separator + "cassandra-junit-" + new Random().nextInt(1000000);

    File cassandraDir = new File(cassandraDirName);
    if (!cassandraDir.exists()) {
        boolean isCreated = cassandraDir.mkdirs();
        if (!isCreated) {
            throw new RuntimeException("could not create cassandra dir " + cassandraDir.getAbsolutePath());
        }/*from  ww w. j  av a2 s  .  c  o  m*/
    }

    InputStream cassandraConfigurationInput = null;
    Writer cassandraConfigurationOutput = null;

    try {
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        cassandraConfigurationInput = loader.getResourceAsStream(CASSANDRA_YAML_FILE);

        Yaml yaml = new Yaml();
        Map<String, Object> cassandraConfiguration = (Map<String, Object>) yaml
                .load(cassandraConfigurationInput);

        int rpcPort = findUnusedLocalPort();
        if (rpcPort == -1) {
            throw new RuntimeException("Can not start embedded cassandra: no unused local port found!");
        }
        cassandraConfiguration.put("rpc_port", rpcPort);

        int storagePort = findUnusedLocalPort();
        if (storagePort == -1) {
            throw new RuntimeException("Can not start embedded cassandra: no unused local port found!");
        }
        cassandraConfiguration.put("storage_port", storagePort);

        int nativeTransportPort = findUnusedLocalPort();
        if (nativeTransportPort == -1) {
            throw new RuntimeException("Can not start embedded cassandra: no unused local port found!");
        }
        cassandraConfiguration.put("native_transport_port", nativeTransportPort);

        cassandraConfiguration.put("start_native_transport", "true");

        cassandraConfigurationOutput = new OutputStreamWriter(
                new FileOutputStream(cassandraDirName + File.separator + CASSANDRA_YAML_FILE), Charsets.UTF_8);

        yaml.dump(cassandraConfiguration, cassandraConfigurationOutput);

        System.setProperty("cassandra.config",
                new File(cassandraDirName, CASSANDRA_YAML_FILE).toURI().toString());
        System.setProperty("cassandra-foreground", "true");

        DatabaseDescriptor.createAllDirectories();

        return nativeTransportPort;

    } finally {
        Closeables.closeQuietly(cassandraConfigurationInput);
        Closeables.close(cassandraConfigurationOutput, true);
    }
}

From source file:com.uber.stream.kafka.mirrormaker.controller.reporter.HelixKafkaMirrorMakerMetricsReporter.java

HelixKafkaMirrorMakerMetricsReporter(ControllerConf config) {
    final String environment = config.getEnvironment();
    final String clientId = config.getInstanceId();
    String[] dcNenv = parse(environment);
    if (dcNenv == null) {
        LOGGER.error("Error parsing environment info");
        _registry = null;/*w w  w.  j a  va  2 s. co  m*/
        _graphiteReporter = null;
        _jmxReporter = null;
        _reporterMetricPrefix = null;
        return;
    }
    _reporterMetricPrefix = String.format(KAFKA_MIRROR_MAKER_METRICS_REPORTER_PREFIX_FORMAT, dcNenv[0],
            dcNenv[1], clientId);
    LOGGER.info("Reporter Metric Prefix is : " + _reporterMetricPrefix);
    _registry = new MetricRegistry();
    final Boolean enabledGraphiteReporting = true;
    final Boolean enabledJmxReporting = true;
    final long graphiteReportFreqSec = 10L;

    // Init jmx reporter
    if (enabledJmxReporting) {
        _jmxReporter = JmxReporter.forRegistry(this._registry).build();
        _jmxReporter.start();
    } else {
        _jmxReporter = null;
    }

    // Init graphite reporter
    if (enabledGraphiteReporting) {
        Graphite graphite = getGraphite(config);
        if (graphite == null) {
            _graphiteReporter = null;
        } else {
            _graphiteReporter = GraphiteReporter.forRegistry(_registry).prefixedWith(_reporterMetricPrefix)
                    .convertRatesTo(TimeUnit.SECONDS).convertDurationsTo(TimeUnit.MILLISECONDS)
                    .filter(MetricFilter.ALL).build(graphite);
            _graphiteReporter.start(graphiteReportFreqSec, TimeUnit.SECONDS);
        }
    } else {
        _graphiteReporter = null;
    }

    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            try {
                if (enabledJmxReporting)
                    Closeables.close(_jmxReporter, true);
                if (enabledGraphiteReporting)
                    Closeables.close(_graphiteReporter, true);
            } catch (Exception e) {
                LOGGER.error("Error while closing Jmx and Graphite reporters.", e);
            }
        }
    });
}

From source file:net.sf.lucis.core.impl.AbstractStore.java

private void shutdown() {
    try {//  ww  w . j a  v  a2s  .  co  m
        Closeables.close(reader, true);
        reader = null;
        lastManaged = false;
        watch.reset();
    } catch (IOException e) {
        // TODO: Log
    }
}

From source file:org.gpfvic.mahout.common.MahoutTestCase.java

protected static void writeLines(File file, String... lines) throws IOException {
    Writer writer = new OutputStreamWriter(new FileOutputStream(file), Charsets.UTF_8);
    try {//from  w w  w  . j  a va  2s.  c  o m
        for (String line : lines) {
            writer.write(line);
            writer.write('\n');
        }
    } finally {
        Closeables.close(writer, false);
    }
}

From source file:org.grouplens.lenskit.util.io.LKFileUtils.java

/**
 * Open a file for input, optionally compressed.
 *
 * @param file        The file to open.//w  ww. j  ava  2 s . co  m
 * @param charset     The character set to use.
 * @param compression Whether to compress the file.
 * @return A reader opened on the file.
 * @throws IOException if there is an error opening the file.
 */
public static Writer openOutput(File file, Charset charset, CompressionMode compression) throws IOException {
    CompressionMode effComp = compression.getEffectiveCompressionMode(file.getName());
    OutputStream ostream = new FileOutputStream(file);
    try {
        OutputStream wrapped = effComp.wrapOutput(ostream);
        return new OutputStreamWriter(wrapped, charset);
    } catch (Exception ex) {
        Closeables.close(ostream, true);
        Throwables.propagateIfPossible(ex, IOException.class);
        throw Throwables.propagate(ex);
    }
}

From source file:org.openqa.selenium.io.Zip.java

public void unzip(String source, File outputDir) throws IOException {
    byte[] bytes = new Base64Encoder().decode(source);

    ByteArrayInputStream bis = null;
    try {/*  w w  w.  j  av  a 2  s. co  m*/
        bis = new ByteArrayInputStream(bytes);
        unzip(bis, outputDir);
    } finally {
        Closeables.close(bis, false);
    }
}