Example usage for com.google.common.io Closer create

Introduction

In this page you can find the example usage for com.google.common.io Closer create.

Prototype

public static Closer create() 

Source Link

Document

Creates a new Closer .

Usage

From source file:tachyon.client.block.LocalBlockInStream.java

/**
 * Creates a new local block input stream.
 *
 * @param blockId the block id//from w w  w  .j  av a2 s  . c om
 * @throws IOException if I/O error occurs
 */
public LocalBlockInStream(long blockId, long blockSize) throws IOException {
    super(blockId, blockSize);
    mContext = BlockStoreContext.INSTANCE;

    mCloser = Closer.create();
    mWorkerClient = mContext.acquireWorkerClient(NetworkAddressUtils.getLocalHostName(ClientContext.getConf()));
    FileChannel localFileChannel = null;

    try {
        String blockPath = mWorkerClient.lockBlock(blockId);
        if (blockPath == null) {
            throw new IOException(ExceptionMessage.BLOCK_NOT_LOCALLY_AVAILABLE.getMessage(mBlockId));
        }
        RandomAccessFile localFile = mCloser.register(new RandomAccessFile(blockPath, "r"));
        localFileChannel = mCloser.register(localFile.getChannel());
    } catch (IOException e) {
        mContext.releaseWorkerClient(mWorkerClient);
        throw e;
    }

    mLocalFileChannel = localFileChannel;
}

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From source file:com.pants.examples.annotation.processor.ExampleProcessor.java

@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
    if (roundEnv.processingOver()) {
        return false;
    }//from   w  w w  .j av  a  2  s .com

    FileObject outputFile = createResource("" /* no package */, EXAMPLES_FILE_NAME);
    if (outputFile != null) {
        Closer closer = Closer.create();
        try {
            PrintWriter writer = closer.register(new PrintWriter(outputFile.openWriter()));
            writer.println("{");
            for (TypeElement appAnnotation : annotations) {
                Set<? extends Element> annotatedElements = roundEnv.getElementsAnnotatedWith(appAnnotation);
                Set<TypeElement> exampleElements = ElementFilter.typesIn(annotatedElements);
                for (Element elem : exampleElements) {
                    String typeName = elem.getSimpleName().toString();
                    for (AnnotationMirror mirror : elem.getAnnotationMirrors()) {
                        String n = ((TypeElement) mirror.getAnnotationType().asElement()).getQualifiedName()
                                .toString();
                        if (Example.class.getCanonicalName().equals(n)) {
                            Map<? extends ExecutableElement, ? extends AnnotationValue> values = mirror
                                    .getElementValues();
                            for (ExecutableElement key : values.keySet()) {
                                if ("value".equals(key.getSimpleName().toString())) {
                                    String exampleValue = (String) values.get(key).getValue();
                                    if (exampleValue != null) {
                                        writer.println("  {'type' : '" + typeName + "', 'value': '"
                                                + exampleValue + "'},");
                                    }
                                }
                            }
                        }
                    }
                }
                writer.println("}\n");
            }
            closer.close();
            log(Diagnostic.Kind.NOTE, "Generated resource '%s'", outputFile.toUri());
        } catch (IOException e) {
            error("Couldn't write to '%s': %s", outputFile.toUri(), e);
        }
    }
    return true;
}

---

From source file:fr.techcode.downloadix.validation.FileValidator.java

/**
 * Validate if the file isn't corrupt//from   w w w . ja  va  2 s.  c om
 *
 * @param file File to check
 * @return Valid or Corrupt
 */
@Override
public boolean isValid(File file) {
    // Check if the file exist
    if (!file.exists())
        return false;

    // Get bytes from a file
    byte[] datas = null;
    Closer closer = Closer.create();
    try {
        try {
            FileInputStream stream = closer.register(new FileInputStream(file));
            datas = ByteStreams.toByteArray(stream);
        } catch (Throwable throwable) {
            throw closer.rethrow(throwable);
        } finally {
            closer.close();
        }

    } catch (IOException ex) {
        ex.printStackTrace();
    }

    return datas != null && algorithm.hashBytes(datas).toString().equalsIgnoreCase(hash);
}

---

From source file:alluxio.client.block.stream.BlockInStream.java

/**
 * Creates an instance of local {@link BlockInStream} that reads from local worker.
 *
 * @param blockId the block ID/*  ww  w  .  ja  va  2  s.  com*/
 * @param blockSize the block size
 * @param workerNetAddress the worker network address
 * @param context the file system context
 * @param options the options
 * @throws IOException if it fails to create an instance
 * @return the {@link BlockInStream} created
 */
// TODO(peis): Use options idiom (ALLUXIO-2579).
public static BlockInStream createLocalBlockInStream(long blockId, long blockSize,
        WorkerNetAddress workerNetAddress, FileSystemContext context, InStreamOptions options)
        throws IOException {
    Closer closer = Closer.create();
    try {
        BlockWorkerClient blockWorkerClient = closer
                .register(context.createBlockWorkerClient(workerNetAddress));
        LockBlockResource lockBlockResource = closer
                .register(blockWorkerClient.lockBlock(blockId, LockBlockOptions.defaults()));
        PacketInStream inStream = closer.register(PacketInStream
                .createLocalPacketInStream(lockBlockResource.getResult().getBlockPath(), blockId, blockSize));
        blockWorkerClient.accessBlock(blockId);
        return new BlockInStream(inStream, blockWorkerClient, closer, options);
    } catch (AlluxioException | IOException e) {
        CommonUtils.closeQuietly(closer);
        throw CommonUtils.castToIOException(e);
    }
}

---

From source file:com.facebook.buck.remoteexecution.grpc.server.GrpcServer.java

@Override
public void close() throws IOException {
    try (Closer closer = Closer.create()) {
        closer.register(server::shutdown);
        closer.register(workDir);/*from w w w .ja va2 s .c o  m*/
    }
    try {
        server.awaitTermination(3, TimeUnit.SECONDS);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.jclouds.vsphere.suppliers.VSphereLocationSupplier.java

private Set<? extends Location> getClusters() {
    Set<Location> hosts = Sets.newHashSet();
    Closer closer = Closer.create();
    VSphereServiceInstance instance = serviceInstance.get();
    closer.register(instance);/*from  w  ww.  j a v  a2 s  . c  o  m*/
    try {
        try {

            ManagedEntity[] clusterEntities = new InventoryNavigator(instance.getInstance().getRootFolder())
                    .searchManagedEntities("ClusterComputeResource");

            for (ManagedEntity cluster : clusterEntities) {
                Location location = new LocationImpl(LocationScope.ZONE, cluster.getName(), cluster.getName(),
                        null, ImmutableSet.of(""), Maps.<String, Object>newHashMap());
                hosts.add(location);
            }

            hosts.add(new LocationImpl(LocationScope.ZONE, "default", "default", null, ImmutableSet.of(""),
                    Maps.<String, Object>newHashMap()));

            return hosts;
        } catch (Exception e) {
            logger.error("Problem in finding a valid cluster", e);
            closer.rethrow(e);
        } finally {
            closer.close();
        }
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    }

    return hosts;
}

---

From source file:com.android.build.gradle.internal.tasks.FilteredJarCopyTask.java

@TaskAction
@Override/*from ww  w .jav  a  2s. c om*/
public void copy() throws IOException {
    if (excludes.isEmpty()) {
        super.copy();
    }

    // create Pattern Objects.
    List<Pattern> patterns = excludes.stream().map(Pattern::compile).collect(Collectors.toList());

    byte[] buffer = new byte[4096];

    try (Closer closer = Closer.create()) {
        FileOutputStream fos = closer.register(new FileOutputStream(outputFile));
        BufferedOutputStream bos = closer.register(new BufferedOutputStream(fos));
        ZipOutputStream zos = closer.register(new ZipOutputStream(bos));

        FileInputStream fis = closer.register(new FileInputStream(inputFile));
        BufferedInputStream bis = closer.register(new BufferedInputStream(fis));
        ZipInputStream zis = closer.register(new ZipInputStream(bis));

        // loop on the entries of the intermediary package and put them in the final package.
        ZipEntry entry;
        while ((entry = zis.getNextEntry()) != null) {
            String name = entry.getName();

            if (!checkEntry(patterns, name)) {
                continue;
            }

            JarEntry newEntry;

            // Preserve the STORED method of the input entry.
            if (entry.getMethod() == JarEntry.STORED) {
                newEntry = new JarEntry(entry);
            } else {
                // Create a new entry so that the compressed len is recomputed.
                newEntry = new JarEntry(name);
            }

            // add the entry to the jar archive
            zos.putNextEntry(newEntry);

            // read the content of the entry from the input stream, and write it into the archive.
            int count;
            while ((count = zis.read(buffer)) != -1) {
                zos.write(buffer, 0, count);
            }

            zos.closeEntry();
            zis.closeEntry();
        }
    }
}

---

From source file:zipkin.storage.cassandra3.DefaultSessionFactory.java

/**
 * Creates a session and ensures schema if configured. Closes the cluster and session if any
 * exception occurred./*from www  .  j a  v a  2s . c om*/
 */
@Override
public Session create(Cassandra3Storage cassandra) {
    Closer closer = Closer.create();
    try {
        Cluster cluster = closer.register(buildCluster(cassandra));
        cluster.register(new QueryLogger.Builder().build());
        Session session;
        if (cassandra.ensureSchema) {
            session = closer.register(cluster.connect());
            Schema.ensureExists(cassandra.keyspace, session);
            session.execute("USE " + cassandra.keyspace);
        } else {
            session = cluster.connect(cassandra.keyspace);
        }

        initializeUDTs(session);

        return session;
    } catch (RuntimeException e) {
        try {
            closer.close();
        } catch (IOException ignored) {
        }
        throw e;
    }
}

---

From source file:zipkin2.storage.cassandra.DefaultSessionFactory.java

/**
 * Creates a session and ensures schema if configured. Closes the cluster and session if any
 * exception occurred./*from   ww w  .j  a v  a2 s  . co  m*/
 */
@Override
public Session create(CassandraStorage cassandra) {
    Closer closer = Closer.create();
    try {
        Cluster cluster = closer.register(buildCluster(cassandra));
        cluster.register(new QueryLogger.Builder().build());
        Session session;
        String keyspace = cassandra.keyspace();
        if (cassandra.ensureSchema()) {
            session = closer.register(cluster.connect());
            Schema.ensureExists(keyspace, cassandra.searchEnabled(), session);
            session.execute("USE " + keyspace);
        } else {
            LOG.debug("Skipping schema check on keyspace {} as ensureSchema was false", keyspace);
            session = cluster.connect(keyspace);
        }

        initializeUDTs(session);

        return session;
    } catch (RuntimeException e) {
        try {
            closer.close();
        } catch (IOException ignored) {
        }
        throw e;
    }
}

---

From source file:org.ow2.proactive.scheduler.rest.readers.TaskResultReader.java

@Override
public Serializable readFrom(Class<Serializable> type, Type genericType, Annotation[] annotations,
        MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
        throws IOException, WebApplicationException {
    Closer closer = Closer.create();
    try {//from   w  ww. ja  v a 2 s. c  o m
        entityStream = closer.register(entityStream);
        return CharStreams.toString(new InputStreamReader(entityStream));
    } catch (IOException ioe) {
        throw closer.rethrow(ioe);
    } finally {
        closer.close();
    }
}

---

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