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

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

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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:cosmos.impl.CosmosImpl.java

@Override
public void close() {
    synchronized (curator) {
        CuratorFrameworkState state = curator.getState();

        // Stop unless we're already stopped
        if (!CuratorFrameworkState.STOPPED.equals(state)) {
            try {
                Closeables.close(curator, true);
            } catch (IOException e) {
                log.warn("Caught IOException closing Curator connection", e);
            }/*from  w  w  w .  ja  va  2 s . c  o m*/
        }
    }
}

From source file:com.android.ide.common.signing.KeystoreHelper.java

/**
 * Creates a new store with a self-signed certificate. The certificate will be valid starting
 * from the current date up to the number of years provided.
 *
 * @param storeType an optional type of keystore; if {@code null} the default
 * @param storeFile the file where the store should be created
 * @param storePassword a password for the key store
 * @param keyPassword a password for the key
 * @param keyAlias the alias under which the key is stored in the store
 * @param dn the distinguished name of the owner and issuer of the certificate
 * @param validityYears number of years the certificate should be valid
 * @throws KeytoolException failed to generate the self-signed certificate or the store
 *//*from  www  . ja  v  a  2s . c  o m*/
private static boolean createNewStore(@Nullable String storeType, @NonNull File storeFile,
        @NonNull String storePassword, @NonNull String keyPassword, @NonNull String keyAlias,
        @NonNull String dn, int validityYears) throws KeytoolException {
    Preconditions.checkArgument(validityYears > 0, "validityYears (%s) <= 0", validityYears);

    String useStoreType = storeType;
    if (useStoreType == null) {
        useStoreType = KeyStore.getDefaultType();
        Verify.verifyNotNull(useStoreType);
    }

    try {
        KeyStore ks = KeyStore.getInstance(useStoreType);
        ks.load(null, null);

        Pair<PrivateKey, X509Certificate> generated = generateKeyAndCertificate("RSA", "SHA1withRSA",
                validityYears, dn);
        ks.setKeyEntry(keyAlias, generated.getFirst(), keyPassword.toCharArray(),
                new Certificate[] { generated.getSecond() });
        FileOutputStream fos = new FileOutputStream(storeFile);
        boolean threw = true;
        try {
            ks.store(fos, storePassword.toCharArray());
            threw = false;
        } finally {
            Closeables.close(fos, threw);
        }
    } catch (KeytoolException e) {
        throw e;
    } catch (Exception e) {
        throw new KeytoolException("Failed to create keystore.", e);
    }

    return true;
}

From source file:org.jclouds.examples.rackspace.cloudqueues.PublishSubscribe.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.
 *//*from  w  ww.  j  a va  2  s .com*/
public void close() throws IOException {
    Closeables.close(marconiApi, true);
}

From source file:ch.ledcom.maven.sitespeed.analyzer.SiteSpeedAnalyzer.java

public Document analyze(URL url) throws IOException, JDOMException, InterruptedException {
    InputStream in = null;//from  w w  w. ja  v  a  2s.  c  om
    boolean threw = true;
    try {
        log.info("Starting analysis of [" + url.toExternalForm() + "]");

        List<String> command = constructCommand(url);

        logCommand(command);

        ProcessBuilder pb = new ProcessBuilder(command);
        pb.redirectErrorStream();
        Process p = pb.start();
        // FIXME: we need to filter the InputStream as it seems we can get
        // content outside of the XML document (see sitespeed.io)
        in = p.getInputStream();
        byte[] result = IOUtils.toByteArray(in);

        log.info("Result of analysis:" + ArrayUtils.toString(result));

        Document doc = docBuilder.get().build(new ByteArrayInputStream(result));

        log.info(XmlPrettyPrinter.prettyPrint(doc));

        int status = p.waitFor();
        if (status != 0) {
            throw new RuntimeException("PhantomJS returned with status [" + status + "]");
        }
        threw = false;
        return doc;
    } finally {
        Closeables.close(in, threw);
    }
}

From source file:com.android.tools.perflib.vmtrace.VmTraceParser.java

/** Parses the trace file header and returns the offset in the file where the header ends. */
@VisibleForTesting(visibility = VisibleForTesting.Visibility.PRIVATE)
long parseHeader(File f) throws IOException {
    long offset = 0;
    BufferedReader in = null;//  w w w .ja  v  a2 s.c  o m
    try {
        in = new BufferedReader(new InputStreamReader(new FileInputStream(f), Charsets.US_ASCII));

        int mode = PARSE_VERSION;
        String line;
        while (true) {
            line = in.readLine();
            if (line == null) {
                throw new IOException("Key section does not have an *end marker");
            }

            // Calculate how much we have read from the file so far.  The
            // extra byte is for the line ending not included by readLine().
            offset += line.length() + 1;

            if (line.startsWith("*")) {
                if (line.equals(HEADER_SECTION_VERSION)) {
                    mode = PARSE_VERSION;
                    continue;
                }
                if (line.equals(HEADER_SECTION_THREADS)) {
                    mode = PARSE_THREADS;
                    continue;
                }
                if (line.equals(HEADER_SECTION_METHODS)) {
                    mode = PARSE_METHODS;
                    continue;
                }
                if (line.equals(HEADER_END)) {
                    break;
                }
            }

            switch (mode) {
            case PARSE_VERSION:
                mTraceDataBuilder.setVersion(Integer.decode(line));
                mode = PARSE_OPTIONS;
                break;
            case PARSE_THREADS:
                parseThread(line);
                break;
            case PARSE_METHODS:
                parseMethod(line);
                break;
            case PARSE_OPTIONS:
                parseOption(line);
                break;
            }
        }
    } finally {
        if (in != null) {
            try {
                Closeables.close(in, true /* swallowIOException */);
            } catch (IOException e) {
                // cannot happen
            }
        }
    }

    return offset;
}

From source file:org.apache.jackrabbit.oak.plugins.blob.datastore.OakFileDataStore.java

@Override
public void addMetadataRecord(InputStream input, String name) throws DataStoreException {
    try {//from   ww  w  .  ja  v  a 2  s .  c o  m
        File file = new File(getPath(), name);
        FileOutputStream os = new FileOutputStream(file);
        try {
            IOUtils.copyLarge(input, os);
        } finally {
            Closeables.close(os, true);
            Closeables.close(input, true);
        }
    } catch (IOException e) {
        LOG.error("Exception while adding root record with name {}, {}", new Object[] { name, e });
        throw new DataStoreException("Could not add root record", e);
    }
}

From source file:edu.rosehulman.mahout.classifier.naivebayes.NaiveBayesModel.java

public void serialize(Path output, Configuration conf) throws IOException {
    FileSystem fs = output.getFileSystem(conf);
    FSDataOutputStream out = fs.create(new Path(output, "naiveBayesModel.bin"));
    try {/*from   w w w .  ja  va 2s  .c o m*/
        out.writeFloat(alphaI);
        VectorWritable.writeVector(out, weightsPerFeature);
        VectorWritable.writeVector(out, weightsPerLabel);
        VectorWritable.writeVector(out, perlabelThetaNormalizer);
        for (int row = 0; row < weightsPerLabelAndFeature.numRows(); row++) {
            VectorWritable.writeVector(out, weightsPerLabelAndFeature.viewRow(row));
        }
    } finally {
        Closeables.close(out, false);
    }
}

From source file:org.apache.mahout.cf.taste.example.kddcup.DataFileIterator.java

@Override
public void close() {
    endOfData();//from  ww  w  .  java  2  s.c o  m
    try {
        Closeables.close(lineIterator, true);
    } catch (IOException e) {
        log.error(e.getMessage(), e);
    }
}

From source file:org.kitesdk.data.spi.filesystem.FileSystemMetadataProvider.java

@Override
public DatasetDescriptor load(String name) {
    Preconditions.checkNotNull(name, "Dataset name cannot be null");

    LOG.debug("Loading dataset metadata name: {}", name);

    Path metadataPath = pathForMetadata(name);
    checkExists(rootFileSystem, metadataPath);

    InputStream inputStream = null;
    Properties properties = new Properties();
    DatasetDescriptor.Builder builder = new DatasetDescriptor.Builder();
    Path descriptorPath = new Path(metadataPath, DESCRIPTOR_FILE_NAME);

    boolean threw = true;
    try {// w w w .j  a v a  2  s  .  c om
        inputStream = rootFileSystem.open(descriptorPath);
        properties.load(inputStream);
        threw = false;
    } catch (IOException e) {
        throw new DatasetIOException(
                "Unable to load descriptor file:" + descriptorPath + " for dataset:" + name, e);
    } finally {
        try {
            Closeables.close(inputStream, threw);
        } catch (IOException e) {
            throw new DatasetIOException("Cannot close", e);
        }
    }

    if (properties.containsKey(FORMAT_FIELD_NAME)) {
        builder.format(Accessor.getDefault().newFormat(properties.getProperty(FORMAT_FIELD_NAME)));
    }
    if (properties.containsKey(PARTITION_EXPRESSION_FIELD_NAME)) {
        builder.partitionStrategy(
                Accessor.getDefault().fromExpression(properties.getProperty(PARTITION_EXPRESSION_FIELD_NAME)));
    }
    Path schemaPath = new Path(metadataPath, SCHEMA_FILE_NAME);
    try {
        builder.schemaUri(rootFileSystem.makeQualified(schemaPath).toUri());
    } catch (IOException e) {
        throw new DatasetIOException("Unable to load schema file:" + schemaPath + " for dataset:" + name, e);
    }

    final Path location;
    if (properties.containsKey(LOCATION_FIELD_NAME)) {
        // the location should always be written by this library and validated
        // when the descriptor is first created.
        location = new Path(properties.getProperty(LOCATION_FIELD_NAME));
    } else {
        // backwards-compatibility: older versions didn't write this property but
        // the data and metadata were always co-located.
        location = expectedPathForDataset(name);
    }
    builder.location(location);

    // custom properties
    for (String property : properties.stringPropertyNames()) {
        if (!RESERVED_PROPERTIES.contains(property)) {
            builder.property(property, properties.getProperty(property));
        }
    }

    return builder.build();
}

From source file:org.apache.giraph.scripting.ScriptLoader.java

/**
 * Load a single deployed script/*  www  .  j  av  a 2s. c  o  m*/
 *
 * @param conf Configuration
 * @param deployedScript the deployed script
 */
public static void loadScript(Configuration conf, DeployedScript deployedScript) throws IOException {
    InputStream stream = openScriptInputStream(conf, deployedScript);
    switch (deployedScript.getLanguage()) {
    case JYTHON:
        loadJythonScript(stream);
        break;
    default:
        LOG.fatal("Don't know how to load script " + deployedScript);
        throw new IllegalStateException("Don't know how to load script " + deployedScript);
    }

    LOADED_SCRIPTS.add(deployedScript);
    Closeables.close(stream, true);
}