Example usage for java.nio.channels Channels newChannel

List of usage examples for java.nio.channels Channels newChannel

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Introduction

In this page you can find the example usage for java.nio.channels Channels newChannel.

Prototype

public static WritableByteChannel newChannel(OutputStream out)

Source Link

Document

Constructs a channel that writes bytes to the given stream.

Usage

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 ww w.java 2  s  . co m*/
}

From source file:com.saasovation.common.port.adapter.messaging.slothmq.SlothWorker.java

protected String receive() {
    SocketChannel socketChannel = null;

    try {/*from w ww  .  j a v a 2s .c  o m*/
        socketChannel = this.socket.accept();

        if (socketChannel == null) {
            return null; // if non-blocking
        }

        ReadableByteChannel readByteChannel = Channels.newChannel(socketChannel.socket().getInputStream());

        ByteArrayOutputStream byteArray = new ByteArrayOutputStream();

        ByteBuffer readBuffer = ByteBuffer.allocate(8);

        while (readByteChannel.read(readBuffer) != -1) {
            readBuffer.flip();

            while (readBuffer.hasRemaining()) {
                byteArray.write(readBuffer.get());
            }

            readBuffer.clear();
        }

        return new String(byteArray.toByteArray());

    } catch (IOException e) {
        logger.error("Failed to receive because: {}: Continuing...", e.getMessage(), e);
        return null;

    } finally {
        if (socketChannel != null) {
            try {
                socketChannel.close();
            } catch (IOException e) {
                // ignore
            }
        }
    }
}

From source file:com.web.searchlocal.flashpaper.thread.Covnert2SwfTask.java

/** 
 * /* ww  w  .j  a  va 2  s  .c om*/
 */
public void excute() {
    String tmpOutFile = outFile.getPath().concat(File.separator)
            .concat(inFile.getName().replaceAll("[.]{1}.*$", ".swf"));
    List<String> commandArray = new ArrayList<String>();
    commandArray.add(defaultCommand);
    commandArray.add(inFile.getPath());
    commandArray.add("-o");
    commandArray.add(tmpOutFile);
    ProcessBuilder pbObj = new ProcessBuilder();
    pbObj.command(commandArray);
    pbObj.directory(outFile);
    pbObj.redirectErrorStream(true);
    try {
        Process proObj = pbObj.start();
        final InputStream ins = proObj.getInputStream();
        final ByteBuffer byteBuffer = ByteBuffer.allocate(1024);
        Thread th = new Thread() {
            public void run() {
                ReadableByteChannel rbcObj = Channels.newChannel(ins);
                try {
                    while (rbcObj.read(byteBuffer) != -1) {
                        byteBuffer.flip();
                        logger.info(java.nio.charset.Charset.defaultCharset().decode(byteBuffer));
                        byteBuffer.clear();
                    }
                } catch (IOException e) {
                    logger.error(e);
                }
            }
        };
        th.setDaemon(true);
        th.start();
        try {
            proObj.waitFor();
            logger.error("??." + tmpOutFile);
        } catch (InterruptedException e) {
            logger.error(e);
        }
    } catch (IOException e) {
        logger.error(e);
    }
}

From source file:io.druid.segment.data.VSizeIndexedIntsWriterTest.java

private void checkSerializedSizeAndData() throws Exception {
    int maxValue = vals.length == 0 ? 0 : Ints.max(vals);
    VSizeIndexedIntsWriter writer = new VSizeIndexedIntsWriter(ioPeon, "test", maxValue);

    VSizeIndexedInts intsFromList = VSizeIndexedInts.fromList(Ints.asList(vals), maxValue);
    writer.open();/*from   ww w.j a va2s.c  om*/
    for (int val : vals) {
        writer.add(val);
    }
    writer.close();
    long writtenLength = writer.getSerializedSize();
    final WritableByteChannel outputChannel = Channels.newChannel(ioPeon.makeOutputStream("output"));
    writer.writeToChannel(outputChannel);
    outputChannel.close();

    assertEquals(writtenLength, intsFromList.getSerializedSize());

    // read from ByteBuffer and check values
    VSizeIndexedInts intsFromByteBuffer = VSizeIndexedInts
            .readFromByteBuffer(ByteBuffer.wrap(IOUtils.toByteArray(ioPeon.makeInputStream("output"))));
    assertEquals(vals.length, intsFromByteBuffer.size());
    for (int i = 0; i < vals.length; ++i) {
        assertEquals(vals[i], intsFromByteBuffer.get(i));
    }
}

From source file:org.alfresco.MockContentGetter.java

public MockContentGetter addTestContent(long nodeInternalId, String nodeId, Long nodeVersion, String nodePath,
        File nodeContent, String mimeType) throws FileNotFoundException {
    long size = nodeContent.length();
    InputStream in = new BufferedInputStream(new FileInputStream(nodeContent));
    ReadableByteChannel channel = Channels.newChannel(in);
    Node node = Node.build().nodeId(nodeId).nodeInternalId(nodeInternalId).nodeVersion(nodeVersion);
    Content content = new Content(channel, size);
    testContentByNodeId.put(node, content);
    testContentByNodeInternalId.put(nodeInternalId, content);
    testContentByNodePath.put(nodePath, content);
    return this;
}

From source file:org.sglover.checksum.ChecksumServiceImpl.java

private ReadableByteChannel getChannel(InputStream in) throws IOException {
    ReadableByteChannel channel = Channels.newChannel(in);
    return channel;
}

From source file:com.compomics.pladipus.controller.setup.InstallActiveMQ.java

private void downloadActiveMQ() throws IOException, ZipException {

    //File downloadFile = PladipusFileDownloadingService.downloadFile(link, activeMQFolder);

    if (!activeMQFolder.exists() & !activeMQFolder.mkdirs()) {
        throw new IOException("could not make install folder");
    }//from  w ww.  jav  a 2s.  c o  m

    URL website = new URL(link);
    Path downloadFile = Files.createTempFile("activemqdownload", null);
    try (ReadableByteChannel rbc = Channels.newChannel(website.openStream());
            FileOutputStream fos = new FileOutputStream(downloadFile.toFile())) {
        //todo replace with loop and replace Long.MAX_VALUE with buffer size?
        if (fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE) != 0) {
            try (FileInputStream fis = new FileInputStream(downloadFile.toFile())) {
                if (DigestUtils.md5Hex(fis).equals("4b844f588672e6616bd6f006253d6148")) {
                    ZipFile zipFile = new ZipFile(downloadFile.toFile());
                    zipFile.extractAll(activeMQFolder.getPath());

                } else {
                    throw new IOException("md5 digest did not match, aborting");
                }
            }
        }
    }
}

From source file:oz.hadoop.yarn.api.FsByteBufferPersister.java

/**
 * //from www  .j  av a  2  s .c  o m
 * @param dataBuffer
 */
public void persist(String dataIdentifier, ByteBuffer dataBuffer) {
    WritableByteChannel outputChannel = this.outputChannels.get(dataIdentifier);
    if (outputChannel == null) {
        String fileName = this.generateFileName(dataIdentifier);
        try {
            OutputStream os = this.fileSystem.create(new Path(fileName), true);
            outputChannel = Channels.newChannel(os);
            this.outputChannels.put(dataIdentifier, outputChannel);
        } catch (Exception e) {
            throw new IllegalStateException(
                    "Failed to create FSDataOutputStream with fileIdentifier '" + dataIdentifier + "'", e);
        }
    }
    dataBuffer.rewind();
    try {
        outputChannel.write(dataBuffer);
    } catch (Exception e) {
        throw new IllegalStateException("Failed to write data to channel", e);
    }
}

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

protected void doAttach() throws Exception {
    if (!attached) {
        try {//from  www.  j av  a2 s .  c o 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;
    }
}

From source file:com.hazelcast.simulator.boot.SimulatorInstaller.java

void install() {
    File simulatorHome = new File(FileUtils.getUserHomePath(), "hazelcast-simulator-" + version);
    System.setProperty("SIMULATOR_HOME", simulatorHome.getAbsolutePath());

    System.out.println("Installing Simulator: " + version);

    File userHome = getUserHome();
    try {/*from w w  w.  ja v  a  2 s .  c o m*/
        if (version.endsWith("SNAPSHOT")) {
            File archive = new File(
                    format("%s/.m2/repository/com/hazelcast/simulator/dist/%s/dist-%s-dist.tar.gz", userHome,
                            version, version));

            if (archive.exists()) {
                simulatorHome.delete();
                decompress(archive);
            } else if (!simulatorHome.exists()) {
                throw new IllegalStateException(
                        "Could not install simulator, archive: " + archive.getAbsolutePath() + " not found");
            }
        } else if (!simulatorHome.exists()) {
            File archive = new File(getUserHome(), format("hazelcast-simulator-%s-dist.tar.gz", version));

            URL url = new URL(format(
                    "http://repo1.maven.org/maven2/" + "com/hazelcast/simulator/dist/%s/dist-%s-dist.tar.gz",
                    version, version));
            ReadableByteChannel rbc = Channels.newChannel(url.openStream());
            System.out.printf("File [%s] doesn't exist; downloading\n", archive.getAbsolutePath());
            FileOutputStream fos = new FileOutputStream(archive);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

            decompress(archive);
            archive.delete();
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}