Example usage for java.nio.channels ReadableByteChannel close

Introduction

In this page you can find the example usage for java.nio.channels ReadableByteChannel close.

Prototype

public void close() throws IOException;

Source Link

Document

Closes this channel.

Usage

From source file:org.polago.deployconf.DeployConfRunner.java

/**
 * Gets a DeploymentConfig instance from a Path.
 *
 * @param path the file to use//from  w  w  w  .  j  a v  a 2 s . c  om
 * @return a DeploymentConfig representation of the ReadableByteChannel
 * @throws Exception indicating error
 */
private DeploymentConfig getDeploymentConfigFromPath(Path path) throws Exception {

    ReadableByteChannel ch = FileChannel.open(path, StandardOpenOption.READ);
    InputStream is = Channels.newInputStream(ch);

    DeploymentReader reader = new DeploymentReader(is, getGroupManager());
    DeploymentConfig result = reader.parse();
    ch.close();

    return result;
}

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From source file:com.doplgangr.secrecy.FileSystem.File.java

public java.io.File readFile(CryptStateListener listener) {
    decrypting = true;// www.j a  v a 2  s .  c o m
    InputStream is = null;
    OutputStream out = null;
    java.io.File outputFile = null;
    try {
        outputFile = java.io.File.createTempFile("tmp" + name, "." + FileType, storage.getTempFolder());
        outputFile.mkdirs();
        outputFile.createNewFile();
        AES_Encryptor enc = new AES_Encryptor(key);
        is = new CipherInputStream(new FileInputStream(file), enc.decryptstream());
        listener.setMax((int) file.length());
        ReadableByteChannel inChannel = Channels.newChannel(is);
        FileChannel outChannel = new FileOutputStream(outputFile).getChannel();
        ByteBuffer byteBuffer = ByteBuffer.allocate(Config.bufferSize);
        while (inChannel.read(byteBuffer) >= 0 || byteBuffer.position() > 0) {
            byteBuffer.flip();
            outChannel.write(byteBuffer);
            byteBuffer.compact();
            listener.updateProgress((int) outChannel.size());
        }
        inChannel.close();
        outChannel.close();
        Util.log(outputFile.getName(), outputFile.length());
        return outputFile;
    } catch (FileNotFoundException e) {
        listener.onFailed(2);
        Util.log("Encrypted File is missing", e.getMessage());
    } catch (IOException e) {
        Util.log("IO Exception while decrypting", e.getMessage());
        if (e.getMessage().contains("pad block corrupted"))
            listener.onFailed(1);
        else
            e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        listener.Finished();
        decrypting = false;
        try {
            if (is != null) {
                is.close();
            }
            if (out != null) {
                out.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    // An error occured. Too Bad
    if (outputFile != null)
        storage.purgeFile(outputFile);
    return null;
}

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From source file:org.openhab.io.transport.cul.internal.network.CULNetworkHandlerImpl.java

private void processRead(SelectionKey key) throws Exception {
    ReadableByteChannel ch = (ReadableByteChannel) key.channel();

    int bytesOp = 0, bytesTotal = 0;
    while (readBuf.hasRemaining() && (bytesOp = ch.read(readBuf)) > 0) {
        bytesTotal += bytesOp;//w w  w . j a v  a  2 s.c  o m
    }
    logger.debug("Read {} bytes from network", bytesTotal);

    if (bytesTotal > 0) {
        readBuf.flip();
        onRead(readBuf);
        readBuf.compact();
    } else if (bytesOp == -1) {
        logger.info("peer closed read channel");
        ch.close();
    }
}

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From source file:io.spring.initializr.generator.ProjectGenerator.java

private File downloadExternalStructure(String urlStr, File file) throws IOException {
    URL url = new URL(urlStr);
    String filename = FilenameUtils.getBaseName(urlStr) + "." + FilenameUtils.getExtension(urlStr);
    log.info("Filename: " + filename);
    ReadableByteChannel rbc = Channels.newChannel(url.openStream());
    File f = new File(file, filename);
    FileOutputStream fos = new FileOutputStream(f);
    fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
    fos.close();//from w  w w. ja  v a  2 s.com
    rbc.close();
    return f;
}

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From source file:org.darkware.wpman.security.ChecksumDatabase.java

/**
 * Perform a checksum calculation on the given {@link ReadableByteChannel}. Other code should not create
 * implementations which are dependant on any particular characteristics of the checksum, but the checksum
 * is very likely to be based on a cryptographic-strength hash. The results of the checksum are encoded as
 * a base64 {@code String}./*from  ww w  .j ava2 s  .co m*/
 *
 * @param channel The {@code ReadableByteChannel} to read data from.
 * @return A Base64 encoded {@code String} representing the checksum.
 * @throws IOException If there was an error while reading data from the channel.
 * @see Base64#encodeBase64String(byte[])
 */
protected String doChecksum(ReadableByteChannel channel) throws IOException {
    Hasher hasher = Hashing.sha256().newHasher();

    final ByteBuffer block = ByteBuffer.allocate(4096);
    while (channel.isOpen()) {
        int bytesRead = channel.read(block);
        if (bytesRead > 0) {
            block.flip();
            hasher.putBytes(block.array(), 0, block.limit());
            block.clear();
        } else if (bytesRead == -1) {
            channel.close();
        }
    }

    return Base64.encodeBase64String(hasher.hash().asBytes());
}

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From source file:org.geowebcache.GeoWebCacheDispatcher.java

private void loadBlankTile(Resource blankTile, URL source) throws IOException {
    InputStream inputStream = source.openStream();
    ReadableByteChannel ch = Channels.newChannel(inputStream);
    try {// w w  w.  j a va2  s .  c  o  m
        blankTile.transferFrom(ch);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        ch.close();
    }
}

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From source file:org.commoncrawl.hadoop.io.S3GetMetdataJob.java

@org.junit.Test
public void testMapper() throws Exception {

    final ArcFileReader reader = new ArcFileReader();

    Thread thread = new Thread(new Runnable() {

        public void run() {
            try {

                while (reader.hasMoreItems()) {
                    ArcFileItem item = new ArcFileItem();

                    reader.getNextItem(item);

                    map(new Text(item.getUri()), item, null, null);

                }/*from  w  w  w .j a  va  2s  .com*/
                LOG.info("NO MORE ITEMS... BYE");
            } catch (IOException e) {
                LOG.error(StringUtils.stringifyException(e));
            }
        }

    });

    // run the thread ...
    thread.start();

    File file = new File("/Users/rana/Downloads/1213886083018_0.arc.gz");
    ReadableByteChannel channel = Channels.newChannel(new FileInputStream(file));

    try {

        int totalBytesRead = 0;
        for (;;) {

            ByteBuffer buffer = ByteBuffer.allocate(ArcFileReader.DEFAULT_BLOCK_SIZE);

            int bytesRead = channel.read(buffer);
            LOG.info("Read " + bytesRead + " From File");

            if (bytesRead == -1) {
                reader.finished();
                break;
            } else {
                buffer.flip();
                totalBytesRead += buffer.remaining();
                reader.available(buffer);
            }
        }
    } finally {
        channel.close();
    }

    // now wait for thread to die ...
    LOG.info("Done Reading File.... Waiting for ArcFileThread to DIE");
    thread.join();
    LOG.info("Done Reading File.... ArcFileThread to DIED");

}

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From source file:com.quanticate.opensource.compressingcontentstore.DecompressingContentReader.java

@Override
protected ReadableByteChannel getDirectReadableChannel() throws ContentIOException {
    // Get a Channel onto the real data
    ReadableByteChannel rawChannel = getRawChannel();

    // Wrap this as an InputStream - Commons Compress is Stream not Channel based
    // Note that Commons Compress needs to mark/reset a bit to identify
    InputStream rawInp = new BufferedInputStream(Channels.newInputStream(rawChannel), 32);

    // Try to process it as a compressed stream
    try {// www  .  j a  v  a 2  s  . c  o  m
        CompressorInputStream decompressed = new CompressorStreamFactory().createCompressorInputStream(rawInp);
        logger.debug("Detected compressed data as " + decompressed.getClass().getName());
        return Channels.newChannel(decompressed);
    } catch (CompressorException e) {
        logger.info("Unable to decompress " + realContentReader, e);
    }

    // Tidy up that channel, and re-fetch the real one
    try {
        rawInp.close();
        rawChannel.close();
    } catch (IOException e) {
        logger.warn("Error tidying up", e);
    }

    logger.debug("Using raw form for " + getContentUrl());
    return getRawChannel();
}

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From source file:org.alfresco.repo.transfer.HttpClientTransmitterImpl.java

public void sendManifest(Transfer transfer, File manifest, OutputStream result) throws TransferException {
    TransferTarget target = transfer.getTransferTarget();
    PostMethod postSnapshotRequest = getPostMethod();
    MultipartRequestEntity requestEntity;

    if (log.isDebugEnabled()) {
        log.debug("does manifest exist? " + manifest.exists());
        log.debug("sendManifest file : " + manifest.getAbsoluteFile());
    }/*from   ww w.  jav a  2  s.  c o m*/

    try {
        HostConfiguration hostConfig = getHostConfig(target);
        HttpState httpState = getHttpState(target);

        try {
            postSnapshotRequest.setPath(target.getEndpointPath() + "/post-snapshot");

            //Put the transferId on the query string
            postSnapshotRequest.setQueryString(
                    new NameValuePair[] { new NameValuePair("transferId", transfer.getTransferId()) });

            //TODO encapsulate the name of the manifest part
            //And add the manifest file as a "part"
            Part file = new FilePart(TransferCommons.PART_NAME_MANIFEST, manifest);
            requestEntity = new MultipartRequestEntity(new Part[] { file }, postSnapshotRequest.getParams());
            postSnapshotRequest.setRequestEntity(requestEntity);

            int responseStatus = httpClient.executeMethod(hostConfig, postSnapshotRequest, httpState);
            checkResponseStatus("sendManifest", responseStatus, postSnapshotRequest);

            InputStream is = postSnapshotRequest.getResponseBodyAsStream();

            final ReadableByteChannel inputChannel = Channels.newChannel(is);
            final WritableByteChannel outputChannel = Channels.newChannel(result);
            try {
                // copy the channels
                channelCopy(inputChannel, outputChannel);
            } finally {
                inputChannel.close();
                outputChannel.close();
            }

            return;
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            String error = "Failed to execute HTTP request to target";
            log.debug(error, e);
            throw new TransferException(MSG_HTTP_REQUEST_FAILED,
                    new Object[] { "sendManifest", target.toString(), e.toString() }, e);
        }
    } finally {
        postSnapshotRequest.releaseConnection();
    }
}

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