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:com.flexive.shared.FxFileUtils.java

/**
 * Copy the content of an InputStream to a file
 *
 * @param expectedSize    expected size of the stream
 * @param sourceStream    source/*ww  w.j a  va  2  s .com*/
 * @param destinationFile destination
 * @return copy was successful and sizes match
 */
public static boolean copyStream2File(long expectedSize, InputStream sourceStream, File destinationFile) {
    ReadableByteChannel sourceChannel = null;
    FileChannel destinationChannel = null;
    try {
        sourceChannel = Channels.newChannel(sourceStream);
        destinationChannel = new FileOutputStream(destinationFile).getChannel();
        return copyNIOChannel(sourceChannel, destinationChannel) == expectedSize
                && destinationFile.length() == expectedSize;
    } catch (IOException e) {
        LOG.error(e, e);
        return false;
    } finally {
        try {
            if (sourceChannel != null)
                sourceChannel.close();
        } catch (IOException e) {
            LOG.error(e);
        }
        try {
            if (destinationChannel != null)
                destinationChannel.close();
        } catch (IOException e) {
            LOG.error(e);
        }
    }
}

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From source file:com.meltmedia.cadmium.core.FileSystemManager.java

public static void streamCopy(InputStream streamIn, OutputStream streamOut, boolean leaveOutputOpen)
        throws IOException {
    ReadableByteChannel input = Channels.newChannel(streamIn);
    WritableByteChannel output = Channels.newChannel(streamOut);

    ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024);

    while (input.read(buffer) != -1) {
        buffer.flip();//w w w. j a  v  a 2s. c om

        output.write(buffer);

        buffer.compact();
    }

    buffer.flip();

    // Make sure the buffer is empty
    while (buffer.hasRemaining()) {
        output.write(buffer);
    }

    input.close();
    if (!leaveOutputOpen) {
        output.close();
    }
}

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From source file:it.unimi.di.big.mg4j.index.DiskBasedIndex.java

/** Commodity method for loading a big list of binary longs with specified endianness into a {@linkplain LongBigArrays long big array}.
 * //  w  w  w  .ja  va  2s. c o m
 * @param ioFactory the factory that will be used to perform I/O.
 * @param filename the file containing the longs.
 * @param byteOrder the endianness of the longs.
 * @return a big list of longs containing the longs in <code>file</code>.
 */
public static LongBigArrayBigList loadLongBigList(final IOFactory ioFactory, final CharSequence filename,
        final ByteOrder byteOrder) throws IOException {
    final long length = ioFactory.length(filename.toString()) / (Long.SIZE / Byte.SIZE);
    ReadableByteChannel channel = ioFactory.getReadableByteChannel(filename.toString());
    final LongBigArrayBigList loadLongBigList = loadLongBigList(channel, length, byteOrder);
    channel.close();
    return loadLongBigList;

}

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From source file:net.vexelon.myglob.utils.Utils.java

/**
 * Reads an input stream into a byte array
 * @param source//from  w  w w  .j a  v a 2  s  . co m
 * @return Byte array of input stream data
 * @throws IOException
 */
public static byte[] read(InputStream source) throws IOException {
    ReadableByteChannel srcChannel = Channels.newChannel(source);
    ByteArrayOutputStream baos = new ByteArrayOutputStream(
            source.available() > 0 ? source.available() : BUFFER_PAGE_SIZE);
    WritableByteChannel destination = Channels.newChannel(baos);

    try {
        ByteBuffer buffer = ByteBuffer.allocate(BUFFER_PAGE_SIZE);
        while (srcChannel.read(buffer) > 0) {
            buffer.flip();
            while (buffer.hasRemaining()) {
                destination.write(buffer);
            }
            buffer.clear();
        }
        return baos.toByteArray();
    } catch (IOException e) {
        throw e;
    } finally {
        try {
            if (srcChannel != null)
                srcChannel.close();
        } catch (IOException e) {
        }
        try {
            if (source != null)
                source.close();
        } catch (IOException e) {
        }
        try {
            if (destination != null)
                destination.close();
        } catch (IOException e) {
        }
    }
}

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From source file:rascal.object.AbstractObjectFactory.java

public GitObject createObject(String name) throws IOException, CorruptedObjectException {
    ReadableByteChannel channel = getChannel(name);
    byte[] buffer = new byte[OBJECT_HEADER_BUFFER_LENGTH];
    channel.read(ByteBuffer.wrap(buffer));
    channel.close();
    int headerSpaceIndex;
    int headerEndIndex;
    if ((headerSpaceIndex = ArrayUtils.indexOf(buffer, (byte) ' ')) == ArrayUtils.INDEX_NOT_FOUND
            || (headerEndIndex = ArrayUtils.indexOf(buffer, (byte) 0)) == ArrayUtils.INDEX_NOT_FOUND
            || headerSpaceIndex >= headerEndIndex) {
        throw new CorruptedObjectException(name, "Corrupted object header");
    }/*from w  w  w.  j  a va  2  s  . c o  m*/
    try {
        return createObject(name, buffer, headerSpaceIndex, headerEndIndex);
    } catch (UnknownObjectTypeException e) {
        throw new CorruptedObjectException(name, e);
    } catch (NumberFormatException e) {
        throw new CorruptedObjectException(name, e);
    }
}

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From source file:com.thinkberg.moxo.vfs.s3.jets3t.Jets3tFileObject.java

protected void doAttach() throws Exception {
    if (!attached) {
        try {/*from  ww w.j  ava 2s  .  co  m*/
            object = service.getObject(bucket, getS3Key());
            System.err.println("Attached file to S3 Object: " + object);
            InputStream is = object.getDataInputStream();
            if (object.getContentLength() > 0) {
                ReadableByteChannel rbc = Channels.newChannel(is);
                FileChannel cacheFc = getCacheFileChannel();
                cacheFc.transferFrom(rbc, 0, object.getContentLength());
                cacheFc.close();
                rbc.close();
            } else {
                is.close();
            }
        } catch (S3ServiceException e) {
            object = new S3Object(bucket, getS3Key());
            object.setLastModifiedDate(new Date());
            System.err.println("Attached file to new S3 Object: " + object);
        }
        attached = true;
    }
}

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From source file:de.Keyle.MyPet.util.Updater.java

public void download() {
    String url = "https://mypet-plugin.de/download/" + plugin + "/";
    if (MyPetVersion.isDevBuild()) {
        url += "dev";
    } else {/*ww  w .  ja  va 2s . c  o  m*/
        url += "release";
    }
    File pluginFile;
    if (Configuration.Update.REPLACE_OLD) {
        pluginFile = new File(MyPetApi.getPlugin().getFile().getParentFile().getAbsolutePath(),
                "update/" + MyPetApi.getPlugin().getFile().getName());
    } else {
        pluginFile = new File(MyPetApi.getPlugin().getFile().getParentFile().getAbsolutePath(),
                "update/MyPet-" + latest.getVersion() + ".jar");
    }

    String finalUrl = url;
    thread = new Thread(() -> {
        try {
            MyPetApi.getLogger().info(ChatColor.RED + "Start update download: " + ChatColor.RESET + latest);
            URL website = new URL(finalUrl);
            ReadableByteChannel rbc = Channels.newChannel(website.openStream());
            FileOutputStream fos = new FileOutputStream(pluginFile);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
            fos.close();
            rbc.close();
            String message = "Finished update download.";
            if (Configuration.Update.REPLACE_OLD || MyPetApi.getPlugin().getFile().getName()
                    .equals("MyPet-" + latest.getVersion() + ".jar")) {
                message += " The update will be loaded on the next server start.";
            } else {
                message += " The file was stored in the \"update\" folder.";
            }
            MyPetApi.getLogger().info(message);
        } catch (IOException e) {
            e.printStackTrace();
        }
    });
    thread.start();
}

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From source file:com.slytechs.capture.FileFactory.java

public FormatType formatType(final File file) throws IOException {

    try {/*from w  w  w.  ja  v  a2s.  c  o m*/
        new PcapFileCapture(file, FileMode.ReadOnlyNoMap, null).close();

        if (logger.isTraceEnabled()) {
            logger.trace(file.getName() + ", type=" + FormatType.Pcap);
        }

        return FormatType.Pcap;
    } catch (final Exception e) {
    }

    try {
        new SnoopFileCapture(file, FileMode.ReadOnlyNoMap, null).close();

        if (logger.isTraceEnabled()) {
            logger.trace(file.getName() + ", type=" + FormatType.Pcap);
        }

        return FormatType.Snoop;
    } catch (final Exception e) {
    }

    /*
     * Now try InputCapture which may also yield a known format
     */
    ReadableByteChannel channel = new RandomAccessFile(file, "r").getChannel();
    FormatType type = formatType(channel);
    channel.close();

    if (logger.isTraceEnabled()) {
        logger.trace(file.getName() + ", type=" + FormatType.Pcap);
    }

    return type;
}

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From source file:com.msr.dnsdemo.network.DownloadFile.java

public DownloadFile(final Context ctxt, String url, FileOutputStream out)
        throws IOException, NullPointerException {
    String version = "0.3.x";
    try {//from  ww  w . ja  v a  2  s  .c  o  m
        version = ctxt.getPackageManager().getPackageInfo("com.msr.dnsdemo", 0).versionName;
    } catch (NameNotFoundException e) {
    }

    httpclient = new DefaultHttpClient();
    httpclient.getParams().setParameter("http.useragent", USERAGENT + version);
    InputStream in = openURL(url);
    if (in == null) {
        Log.e(TAG, "Unable to download: " + url);
        return;
    }

    final ReadableByteChannel inputChannel = Channels.newChannel(in);
    final WritableByteChannel outputChannel = Channels.newChannel(out);

    try {
        Log.i(TAG, "Downloading " + url);
        fastChannelCopy(inputChannel, outputChannel);
    } finally {
        try {
            if (inputChannel != null) {
                inputChannel.close();
            }
            if (outputChannel != null) {
                outputChannel.close();
            }
            if (in != null) {
                in.close();
            }
            if (out != null) {
                out.close();
            }
        } catch (Exception e) {
            if (e != null && e.getMessage() != null) {
                Log.e(TAG, e.getMessage());
            } else {
                Log.e(TAG, "fastChannelCopy() unknown error");
            }
        }
    }
}

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From source file:info.lamatricexiste.network.Network.DownloadFile.java

public DownloadFile(final Context ctxt, String url, FileOutputStream out)
        throws IOException, NullPointerException {
    String version = "0.3.x";
    try {//from w  w  w  .ja va2 s  .  com
        version = ctxt.getPackageManager().getPackageInfo(ActivityMain.TAG, 0).versionName;
    } catch (NameNotFoundException e) {
    }

    httpclient = new DefaultHttpClient();
    httpclient.getParams().setParameter("http.useragent", USERAGENT + version);
    InputStream in = openURL(url);
    if (in == null) {
        Log.e(TAG, "Unable to download: " + url);
        return;
    }

    final ReadableByteChannel inputChannel = Channels.newChannel(in);
    final WritableByteChannel outputChannel = Channels.newChannel(out);

    try {
        Log.i(TAG, "Downloading " + url);
        fastChannelCopy(inputChannel, outputChannel);
    } finally {
        try {
            if (inputChannel != null) {
                inputChannel.close();
            }
            if (outputChannel != null) {
                outputChannel.close();
            }
            if (in != null) {
                in.close();
            }
            if (out != null) {
                out.close();
            }
        } catch (Exception e) {
            if (e != null && e.getMessage() != null) {
                Log.e(TAG, e.getMessage());
            } else {
                Log.e(TAG, "fastChannelCopy() unknown error");
            }
        }
    }
}

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