Example usage for com.google.common.io Closeables 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.android.builder.sdk.DefaultSdkLoader.java

@Nullable
private FullRevision getPlatformToolsRevision(@NonNull File platformToolsFolder) {
    if (!platformToolsFolder.isDirectory()) {
        return null;
    }/*from  www. ja  va  2  s  . c o  m*/

    Reader reader = null;
    try {
        reader = new InputStreamReader(new FileInputStream(new File(platformToolsFolder, FN_SOURCE_PROP)),
                Charsets.UTF_8);
        Properties props = new Properties();
        props.load(reader);

        String value = props.getProperty(PkgProps.PKG_REVISION);

        return FullRevision.parseRevision(value);

    } catch (FileNotFoundException ignore) {
        // return null below.
    } catch (IOException ignore) {
        // return null below.
    } catch (NumberFormatException ignore) {
        // return null below.
    } finally {
        try {
            Closeables.close(reader, true /* swallowIOException */);
        } catch (IOException e) {
            // cannot happen
        }
    }

    return null;
}

From source file:org.kitesdk.tools.CopyTask.java

public PipelineResult run() throws IOException {
    boolean runInParallel = true;
    if (isLocal(from.getDataset()) || isLocal(to.getDataset())) {
        runInParallel = false;/*w  w  w . j  ava  2s. com*/
    }

    if (runInParallel) {
        TaskUtil.configure(getConf()).addJarPathForClass(HiveConf.class)
                .addJarForClass(AvroKeyInputFormat.class);

        Pipeline pipeline = new MRPipeline(getClass(), getConf());

        // TODO: add transforms
        PCollection<E> collection = pipeline.read(CrunchDatasets.asSource(from, entityClass));

        if (compact) {
            collection = partition(collection, to.getDataset().getDescriptor(), numWriters);
        }

        pipeline.write(collection, CrunchDatasets.asTarget(to));

        PipelineResult result = pipeline.done();

        StageResult sr = Iterables.getFirst(result.getStageResults(), null);
        if (sr != null && MAP_INPUT_RECORDS != null) {
            this.count = sr.getCounterValue(MAP_INPUT_RECORDS);
        }

        return result;

    } else {
        Pipeline pipeline = MemPipeline.getInstance();

        // TODO: add transforms
        PCollection<E> collection = pipeline.read(CrunchDatasets.asSource(from, entityClass));

        boolean threw = true;
        DatasetWriter<E> writer = null;
        try {
            writer = to.newWriter();

            for (E entity : collection.materialize()) {
                writer.write(entity);
                count += 1;
            }

            threw = false;

        } finally {
            Closeables.close(writer, threw);
        }

        return pipeline.done();
    }
}

From source file:com.complexible.common.openrdf.repository.Repositories.java

public static void add(final Repository theRepo, final Reader theStream, final RDFFormat theFormat,
        final Resource theContext, final String theBase) throws RDFParseException, IOException {
    RepositoryConnection aConn = null;// ww  w . java  2s . co m

    try {
        aConn = theRepo.getConnection();

        RepositoryConnections.add(aConn, theStream, theFormat, theContext, theBase);
    } catch (Exception e) {
        throw new IOException(e);
    } finally {
        RepositoryConnections.closeQuietly(aConn);
        Closeables.close(theStream, false);
    }
}

From source file:com.google.dart.compiler.DeltaAnalyzer.java

private DartParser getParser(Source source) throws IOException {
    Reader r = source.getSourceReader();
    String sourceString = CharStreams.toString(r);
    Closeables.close(r, false);
    return new DartParser(new DartScannerParserContext(source, sourceString, listener), false);
}

From source file:org.apache.mahout.cf.taste.impl.model.jdbc.GenericJDBCDataModel.java

private static Properties getPropertiesFromStream(InputStream is) throws TasteException {
    try {// w  w  w.  j a v a 2  s  .  co m
        try {
            Properties props = new Properties();
            props.load(is);
            return props;
        } finally {
            Closeables.close(is, true);
        }
    } catch (IOException ioe) {
        throw new TasteException(ioe);
    }
}

From source file:eu.interedition.text.repository.JdbcStore.java

@Override
public void text(long id, final Segment segment, final TextCallback cb) {
    withTextContent(id, new TextContentCallback<Void>() {
        @Override//  w  w w . j  a  v a2  s. c  om
        public Void withContent(Clob text) throws IOException, SQLException {
            Reader content = text.getCharacterStream();
            if (segment != null) {
                content = new Segment.Reader(content, segment);
            }
            try {
                cb.text(content);
            } finally {
                Closeables.close(content, false);
            }
            return null;
        }
    });
}

From source file:com.sdw.dream.spark.examples.streaming.JavaCustomReceiver.java

/** Create a socket connection and receive data until receiver is stopped */
private void receive() {
    try {//from  w  ww .ja v  a  2s.  c om
        Socket socket = null;
        BufferedReader reader = null;
        String userInput = null;
        try {
            // connect to the server
            socket = new Socket(host, port);
            reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            // Until stopped or connection broken continue reading
            while (!isStopped() && (userInput = reader.readLine()) != null) {
                System.out.println("Received data '" + userInput + "'");
                store(userInput);
            }
        } finally {
            Closeables.close(reader, /* swallowIOException = */ true);
            Closeables.close(socket, /* swallowIOException = */ true);
        }
        // Restart in an attempt to connect again when server is active again
        restart("Trying to connect again");
    } catch (ConnectException ce) {
        // restart if could not connect to server
        restart("Could not connect", ce);
    } catch (Throwable t) {
        restart("Error receiving data", t);
    }
}

From source file:io.druid.indexer.hadoop.DatasourceRecordReader.java

@Override
public void close() throws IOException {
    Closeables.close(firehose, true);
    for (QueryableIndex qi : indexes) {
        Closeables.close(qi, true);/*from   w w  w. j  a v  a 2s .co m*/
    }

    for (File dir : tmpSegmentDirs) {
        FileUtils.deleteDirectory(dir);
    }
}

From source file:org.apache.james.util.scanner.SpamAssassinInvoker.java

/**
 * Scan a MimeMessage for spam by passing it to spamd.
 * //www.  j a  v a2 s  .  co  m
 * @param message
 *            The MimeMessage to scan
 * @return true if spam otherwise false
 * @throws MessagingException
 *             if an error on scanning is detected
 */
public boolean scanMail(MimeMessage message) throws MessagingException {
    Socket socket = null;
    OutputStream out = null;
    BufferedReader in = null;

    try {
        socket = new Socket(spamdHost, spamdPort);

        out = socket.getOutputStream();
        in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        out.write("CHECK SPAMC/1.2\r\n\r\n".getBytes());

        // pass the message to spamd
        message.writeTo(out);
        out.flush();
        socket.shutdownOutput();
        String s;
        while ((s = in.readLine()) != null) {
            if (s.startsWith("Spam:")) {
                StringTokenizer t = new StringTokenizer(s, " ");
                boolean spam;
                try {
                    t.nextToken();
                    spam = Boolean.valueOf(t.nextToken());
                } catch (Exception e) {
                    // On exception return flase
                    return false;
                }
                t.nextToken();
                hits = t.nextToken();
                t.nextToken();
                required = t.nextToken();

                if (spam) {
                    // message was spam
                    headers.put(FLAG_MAIL_ATTRIBUTE_NAME, "YES");
                    headers.put(STATUS_MAIL_ATTRIBUTE_NAME, "Yes, hits=" + hits + " required=" + required);

                    // spam detected
                    return true;
                } else {
                    // add headers
                    headers.put(FLAG_MAIL_ATTRIBUTE_NAME, "NO");
                    headers.put(STATUS_MAIL_ATTRIBUTE_NAME, "No, hits=" + hits + " required=" + required);

                    return false;
                }
            }
        }
        return false;
    } catch (UnknownHostException e1) {
        throw new MessagingException("Error communicating with spamd. Unknown host: " + spamdHost);
    } catch (IOException e1) {
        throw new MessagingException(
                "Error communicating with spamd on " + spamdHost + ":" + spamdPort + " Exception: " + e1);
    } catch (MessagingException e1) {
        throw new MessagingException(
                "Error communicating with spamd on " + spamdHost + ":" + spamdPort + " Exception: " + e1);
    } finally {
        try {
            Closeables.close(in, true);
            Closeables.close(out, true);
            socket.close();
        } catch (Exception e) {
            // Should never happen
        }

    }
}

From source file:com.andado.spark.examples.streaming.JavaCustomReceiver.java

/**
 * Create a socket connection and receive data until receiver is stopped
 *//*from ww w . j a  va 2 s. com*/
private void receive() {
    try {
        Socket socket = null;
        BufferedReader reader = null;
        String userInput = null;
        try {
            // connect to the server
            socket = new Socket(host, port);
            reader = new BufferedReader(new InputStreamReader(socket.getInputStream(), StandardCharsets.UTF_8));
            // Until stopped or connection broken continue reading
            while (!isStopped() && (userInput = reader.readLine()) != null) {
                System.out.println("Received data '" + userInput + "'");
                store(userInput);
            }
        } finally {
            Closeables.close(reader, /* swallowIOException = */ true);
            Closeables.close(socket, /* swallowIOException = */ true);
        }
        // Restart in an attempt to connect again when server is active again
        restart("Trying to connect again");
    } catch (ConnectException ce) {
        // restart if could not connect to server
        restart("Could not connect", ce);
    } catch (Throwable t) {
        restart("Error receiving data", t);
    }
}