Example usage for java.nio.channels WritableByteChannel write

Introduction

In this page you can find the example usage for java.nio.channels WritableByteChannel write.

Prototype

public int write(ByteBuffer src) throws IOException;

Source Link

Document

Writes a sequence of bytes to this channel from the given buffer.

Usage

From source file:schemacrawler.test.utility.TestUtility.java

private static void fastChannelCopy(final ReadableByteChannel src, final WritableByteChannel dest)
        throws IOException {
    final ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024);
    while (src.read(buffer) != -1) {
        // prepare the buffer to be drained
        buffer.flip();//from w  ww.  j  a v a 2 s .c o m
        // write to the channel, may block
        dest.write(buffer);
        // If partial transfer, shift remainder down
        // If buffer is empty, same as doing clear()
        buffer.compact();
    }
    // EOF will leave buffer in fill state
    buffer.flip();
    // make sure the buffer is fully drained.
    while (buffer.hasRemaining()) {
        dest.write(buffer);
    }
}

From source file:com.spectralogic.ds3client.utils.IOUtils.java

public static long copy(final InputStream inputStream, final WritableByteChannel writableByteChannel,
        final int bufferSize, final String objName, final boolean isPutCommand) throws IOException {
    final byte[] buffer = new byte[bufferSize];
    final ByteBuffer byteBuffer = ByteBuffer.wrap(buffer);
    int len;/*from w  ww . ja v  a 2s  . c  o  m*/
    long totalBytes = 0;

    final long startTime = PerformanceUtils.getCurrentTime();
    long statusUpdateTime = startTime;

    try {
        while ((len = inputStream.read(buffer)) != -1) {
            totalBytes += len;

            try {
                byteBuffer.position(0);
                byteBuffer.limit(len);
                writableByteChannel.write(byteBuffer);
            } catch (final Throwable t) {
                throw new UnrecoverableIOException(t);
            }

            final long curTime = PerformanceUtils.getCurrentTime();
            if (statusUpdateTime <= curTime) {
                PerformanceUtils.logMbpsStatus(startTime, curTime, totalBytes, objName, isPutCommand);
                statusUpdateTime += 60000D; //Only logs status once a minute
            }
        }
    } catch (final ConnectionClosedException e) {
        LOG.error("Connection closed trying to copy from stream to channel.", e);
    }

    return totalBytes;
}

From source file:com.pavlospt.rxfile.RxFile.java

private static void fastChannelCopy(final ReadableByteChannel src, final WritableByteChannel dest)
        throws IOException {
    final ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024);
    while (src.read(buffer) != -1) {
        buffer.flip();/*from  w w  w  .ja  v  a  2  s .  co  m*/
        dest.write(buffer);
        buffer.compact();
    }
    buffer.flip();
    while (buffer.hasRemaining()) {
        dest.write(buffer);
    }
}

From source file:it.geosolutions.tools.io.file.IOUtils.java

/**
 * Copies the content of the source channel onto the destination channel.
 * /*  w  ww.jav  a  2s. co  m*/
 * @param bufferSize
 *            size of the temp buffer to use for this copy.
 * @param source
 *            the source {@link ReadableByteChannel}.
 * @param destination
 *            the destination {@link WritableByteChannel};.
 * @throws IOException
 *             in case something bad happens.
 */
public static void copyChannel(int bufferSize, ReadableByteChannel source, WritableByteChannel destination)
        throws IOException {

    Objects.notNull(source, destination);
    if (!source.isOpen() || !destination.isOpen())
        throw new IllegalStateException("Source and destination channels must be open.");

    final java.nio.ByteBuffer buffer = java.nio.ByteBuffer.allocateDirect(bufferSize);
    while (source.read(buffer) != -1) {
        // prepare the buffer for draining
        buffer.flip();

        // write to destination
        while (buffer.hasRemaining())
            destination.write(buffer);

        // clear
        buffer.clear();

    }

}

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

private static void channelCopy(final ReadableByteChannel src, final WritableByteChannel dest)
        throws IOException {
    final ByteBuffer buffer = ByteBuffer.allocateDirect(2 * 1024);
    while (src.read(buffer) != -1) {
        // prepare the buffer to be drained
        buffer.flip();//  w w  w  .j  av  a2s.  c o m
        // write to the channel, may block
        dest.write(buffer);

        // If partial transfer, shift remainder down
        // If buffer is empty, same as doing clear()
        buffer.compact();
    }

    // EOF will leave buffer in fill state
    buffer.flip();

    // make sure the buffer is fully drained.
    while (buffer.hasRemaining()) {
        dest.write(buffer);
    }
}

From source file:org.cloudfoundry.caldecott.server.converter.ByteBufferHttpMessageConverter.java

@Override
protected void writeInternal(ByteBuffer buffer, HttpOutputMessage outputMessage) throws IOException {
    WritableByteChannel channel = Channels.newChannel(outputMessage.getBody());
    channel.write(buffer);
}

From source file:pl.allegro.tech.hermes.consumers.consumer.sender.http.ByteBufferEntity.java

@Override
public void writeTo(OutputStream outstream) throws IOException {
    Args.notNull(outstream, "Output stream");
    WritableByteChannel channel = Channels.newChannel(outstream);
    channel.write(buffer);
    outstream.flush();//from   w w  w .  ja  v a 2s .c  om
}

From source file:info.fetter.rrdclient.GraphCommand.java

@Override
public void execute(OutputStream out) {
    String command = "graph";
    for (String arg : args) {
        command += " " + arg;
    }/*  w  w w  . j a  v  a2 s.  c  om*/
    try {
        ByteBuffer response = sendCommandToServer(command);
        WritableByteChannel channel = Channels.newChannel(out);
        channel.write(response);
        isOutputParsed = false;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

}

From source file:info.fetter.rrdclient.FetchCommand.java

@Override
public void execute(OutputStream out) {
    String command = "fetch " + fileName + " " + consolidationFunction;
    for (String arg : args) {
        command += " " + arg;
    }/*  w w w. j  a  v a 2 s  . c  om*/
    try {
        ByteBuffer response = sendCommandToServer(command);
        WritableByteChannel channel = Channels.newChannel(out);
        channel.write(response);
        isOutputParsed = false;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:rascal.object.source.BlobSource.java

public final void copyTo(WritableByteChannel destination) throws IOException {
    String headerString = String.format("%s %d", GitObjectType.BLOB, getBlobSize());
    byte[] header = ArrayUtils.add(headerString.getBytes(), (byte) 0);
    destination.write(ByteBuffer.wrap(header));
    copyBlobDataTo(destination);//from   ww  w . jav a 2 s .c  o m
}