Example usage for java.nio.channels Channels newChannel

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.geowebcache.service.wms.WMSService.java

/**
 * Handles a getfeatureinfo request/*w  ww  .  j a  va 2 s  .  co  m*/
 * 
 * @param conv
 */
private void handleGetFeatureInfo(ConveyorTile tile) throws GeoWebCacheException {
    TileLayer tl = tld.getTileLayer(tile.getLayerId());

    if (tl == null) {
        throw new GeoWebCacheException(tile.getLayerId() + " is unknown.");
    }

    String[] keys = { "x", "y", "srs", "info_format", "bbox", "height", "width" };
    Map<String, String> values = ServletUtils.selectedStringsFromMap(tile.servletReq.getParameterMap(),
            tile.servletReq.getCharacterEncoding(), keys);

    // TODO Arent we missing some format stuff here?
    GridSubset gridSubset = tl.getGridSubsetForSRS(SRS.getSRS(values.get("srs")));

    BoundingBox bbox = null;
    try {
        bbox = new BoundingBox(values.get("bbox"));
    } catch (NumberFormatException nfe) {
        log.debug(nfe.getMessage());
    }

    if (bbox == null || !bbox.isSane()) {
        throw new ServiceException(
                "The bounding box parameter (" + values.get("srs") + ") is missing or not sane");
    }

    // long[] tileIndex = gridSubset.closestIndex(bbox);

    MimeType mimeType;
    try {
        mimeType = MimeType.createFromFormat(values.get("info_format"));
    } catch (MimeException me) {
        throw new GeoWebCacheException(
                "The info_format parameter (" + values.get("info_format") + ")is missing or not recognized.");
    }

    if (mimeType != null && !tl.getInfoMimeTypes().contains(mimeType)) {
        throw new GeoWebCacheException(
                "The info_format parameter (" + values.get("info_format") + ") is not supported.");
    }

    ConveyorTile gfiConv = new ConveyorTile(sb, tl.getName(), gridSubset.getName(), null, mimeType,
            tile.getFullParameters(), tile.servletReq, tile.servletResp);
    gfiConv.setTileLayer(tl);

    int x, y;
    try {
        x = Integer.parseInt(values.get("x"));
        y = Integer.parseInt(values.get("y"));
    } catch (NumberFormatException nfe) {
        throw new GeoWebCacheException("The parameters for x and y must both be positive integers.");
    }

    int height, width;
    try {
        height = Integer.parseInt(values.get("height"));
        width = Integer.parseInt(values.get("width"));
    } catch (NumberFormatException nfe) {
        throw new GeoWebCacheException("The parameters for height and width must both be positive integers.");
    }

    Resource data = tl.getFeatureInfo(gfiConv, bbox, height, width, x, y);

    try {
        tile.servletResp.setContentType(mimeType.getMimeType());
        ServletOutputStream outputStream = tile.servletResp.getOutputStream();
        data.transferTo(Channels.newChannel(outputStream));
        outputStream.flush();
    } catch (IOException ioe) {
        tile.servletResp.setStatus(500);
        log.error(ioe.getMessage());
    }

}

---

From source file:org.alfresco.contentstore.ChecksumTest.java

private ByteBuffer copy(InputStream in) throws IOException {
    File f = TempFileProvider.createTempFile("ContentStoreTest", GUID.generate());
    try (OutputStream out = new FileOutputStream(f)) {
        IOUtils.copy(in, out);//from  w  w w  .j a va2s.  c o m
    }
    try (ReadableByteChannel c = Channels.newChannel(new FileInputStream(f))) {
        ByteBuffer bb = ByteBuffer.wrap(java.nio.file.Files.readAllBytes(f.toPath()));
        return bb;
    }
}

---

From source file:org.alfresco.provision.ActiveMQService.java

private DestinationStats getStats(String destinationType, String destinationName) throws IOException {
    StringBuilder sb = new StringBuilder("http://");
    sb.append(activeMQHost);//  w w  w.ja v  a  2s. c o m
    sb.append(":");
    sb.append(activeMQPort);
    sb.append("/api/jolokia");
    String url = sb.toString();

    CloseableHttpResponse httpResponse = null;

    HttpPost httpPost = new HttpPost(url);
    Request[] post = new Request[] {
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "AverageEnqueueTime"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "EnqueueCount"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "DequeueCount"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "DispatchCount"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "MemoryPercentUsage"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "AverageBlockedTime"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "QueueSize"),
            new Request("read",
                    "org.apache.activemq:type=Broker,brokerName=localhost,destinationType=" + destinationType
                            + ",destinationName=" + destinationName,
                    "BlockedSends"),
            new Request("read", "org.apache.activemq:type=Broker,brokerName=localhost,destinationType="
                    + destinationType + ",destinationName=" + destinationName, "MaxEnqueueTime") };
    String str = mapper.writeValueAsString(post);
    HttpEntity postEntity = new StringEntity(str);
    httpPost.setEntity(postEntity);
    httpResponse = client.execute(httpPost);

    DestinationStats stats = new DestinationStats(destinationType, destinationName);

    StatusLine status = httpResponse.getStatusLine();
    // Expecting "OK" status
    if (status.getStatusCode() == HttpStatus.SC_OK) {
        HttpEntity entity = httpResponse.getEntity();
        InputStream in = entity.getContent();
        try {
            ByteBuffer bb = ByteBuffer.allocate(1024 * 10);
            ReadableByteChannel inChannel = Channels.newChannel(in);
            int read = -1;
            do {
                read = inChannel.read(bb);
            } while (read != -1);
            bb.flip();
            Response[] response = mapper.readValue(bb.array(), Response[].class);
            for (Response r : response) {
                if (r.getRequest().getAttribute().equals("AverageEnqueueTime")) {
                    stats.setAverageEnqueueTime(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("EnqueueCount")) {
                    stats.setEnqueueCount(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("DequeueCount")) {
                    stats.setDequeueCount(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("DispatchCount")) {
                    stats.setDispatchCount(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("MemoryPercentUsage")) {
                    stats.setMemoryPercentUsage(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("AverageBlockedTime")) {
                    stats.setAverageBlockedTime(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("QueueSize")) {
                    stats.setQueueSize(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("MaxEnqueueTime")) {
                    stats.setMaxEnqueueTime(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("BlockedSends")) {
                    stats.setBlockedSends(r.getValue() != null ? r.getValue() : 0.0);
                } else if (r.getRequest().getAttribute().equals("DispatchCount")) {
                    stats.setDispatchCount(r.getValue() != null ? r.getValue() : 0.0);
                }
            }
        } finally {
            if (in != null) {
                in.close();
            }
        }
    } else {
        // TODO
    }

    return stats;
}

---

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  w w  w.j a v a 2  s.co 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();
    }
}

---

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

private static Path writeToTempFile(final InputStream resourceStream)
        throws IOException, FileNotFoundException {
    final Path tempFile = createTempFile("resource", "data").normalize().toAbsolutePath();

    try (final OutputStream tempFileStream = newOutputStream(tempFile, WRITE, TRUNCATE_EXISTING, CREATE);) {
        fastChannelCopy(Channels.newChannel(resourceStream), Channels.newChannel(tempFileStream));
    }/*w  w  w. ja  v  a 2s  .  c  o m*/

    return tempFile;
}

---

From source file:jeeves.utils.BinaryFile.java

/**
 * Copies an input stream (from a file) to an output stream 
 *//*from ww  w  . j  ava2 s . c  om*/
public static void copy(InputStream in, OutputStream out, boolean closeInput, boolean closeOutput)
        throws IOException {

    try {
        if (in instanceof FileInputStream) {
            FileInputStream fin = (FileInputStream) in;
            WritableByteChannel outChannel;
            if (out instanceof FileOutputStream) {
                outChannel = ((FileOutputStream) out).getChannel();
            } else {
                outChannel = Channels.newChannel(out);
            }
            fin.getChannel().transferTo(0, Long.MAX_VALUE, outChannel);
        } else {
            BufferedInputStream input = new BufferedInputStream(in);

            byte buffer[] = new byte[BUF_SIZE];
            int nRead;

            while ((nRead = input.read(buffer)) > 0)
                out.write(buffer, 0, nRead);
        }
    } finally {
        if (closeInput)
            IOUtils.closeQuietly(in);
        if (closeOutput)
            IOUtils.closeQuietly(out);
    }
}

---

From source file:org.alfresco.contentstore.ChecksumTest.java

@Test
public void test0() throws IOException {
    checksumService.setBlockSize(5);//from   w  w w .  ja v a 2s . c o m

    UserContext.setUser("user1");

    Node node = Node.build().nodeId(GUID.generate()).nodeVersion(1l);

    try (InputStream in = new ByteArrayInputStream("Hello world".getBytes())) {
        NodeChecksums checksums = checksumService.getChecksums(node, in);

        try (InputStream in1 = new ByteArrayInputStream("Hello there world".getBytes());
                ReadableByteChannel channel1 = Channels.newChannel(in1)) {
            PatchDocument patchDocument = new PatchDocumentImpl();
            patchService.updatePatchDocument(patchDocument, checksums, channel1);
            System.out.println("patchDocument = " + patchDocument);
        }
    }
}

---

From source file:org.mycore.common.content.util.MCRServletContentHelper.java

/**
 * Consumes the content and writes it to the ServletOutputStream.
 *//*from ww w.  j  a v a2 s . c om*/
private static void copy(final MCRContent content, final ServletOutputStream out, final int inputBufferSize,
        final int outputBufferSize) throws IOException {
    final long bytesCopied;
    long length = content.length();
    if (content instanceof MCRSeekableChannelContent) {
        try (SeekableByteChannel byteChannel = ((MCRSeekableChannelContent) content).getSeekableByteChannel();
                WritableByteChannel nout = Channels.newChannel(out)) {
            endCurrentTransaction();
            bytesCopied = copyChannel(byteChannel, nout, outputBufferSize);
        }
    } else {
        try (InputStream contentIS = content.getInputStream();
                final InputStream in = isInputStreamBuffered(contentIS, content) ? contentIS
                        : new BufferedInputStream(contentIS, inputBufferSize);) {
            endCurrentTransaction();
            // Copy the inputBufferSize stream to the outputBufferSize stream
            bytesCopied = IOUtils.copyLarge(in, out, new byte[outputBufferSize]);
        }
    }
    if (length >= 0 && length != bytesCopied) {
        throw new EOFException("Bytes to send: " + length + " actual: " + bytesCopied);
    }
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("Wrote " + bytesCopied + " bytes.");
    }
}

---

From source file:org.alfresco.contentstore.ChecksumTest.java

@Test
public void test1() throws IOException {
    checksumService.setBlockSize(5);/*ww  w .  j av a2s . co  m*/

    UserContext.setUser("user1");

    Node node = Node.build().nodeId(GUID.generate()).nodeVersion(1l);

    NodeChecksums checksums = getChecksumsForString(node, "Hello there world");

    try (ReadableByteChannel inChannel = Channels
            .newChannel(new ByteArrayInputStream("Hello world".getBytes()));
            ReadableByteChannel inChannel1 = Channels
                    .newChannel(new ByteArrayInputStream("Hello there world".getBytes()));
            ByteArrayOutputStream bos = new ByteArrayOutputStream(1024);
            WritableByteChannel patchedChannel = Channels.newChannel(bos)) {
        PatchDocument patchDocument = new PatchDocumentImpl();
        patchService.updatePatchDocument(patchDocument, checksums, inChannel);

        try (InputStream actual = new ByteArrayInputStream(bos.toByteArray());
                InputStream expected = new ByteArrayInputStream("Hello world".getBytes())) {
            assertEqual(expected, actual);
        }
    }
}

---

From source file:org.geowebcache.storage.blobstore.memory.MemoryBlobStore.java

/***
 * This method is used for converting a {@link TileObject} {@link Resource} into a {@link ByteArrayResource}.
 * /*from  w  ww  .j  av a2 s  .  co m*/
 * @param obj
 * @return a TileObject with resource stored in a Byte Array
 * @throws StorageException
 */
private TileObject getByteResourceTile(TileObject obj) throws StorageException {
    // Get TileObject resource
    Resource blob = obj.getBlob();
    final Resource finalBlob;
    // If it is a ByteArrayResource, the result is simply copied
    if (obj.getBlob() instanceof ByteArrayResource) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Resource is already a Byte Array, only a copy is needed");
        }
        ByteArrayResource byteArrayResource = (ByteArrayResource) obj.getBlob();
        byte[] contents = byteArrayResource.getContents();
        byte[] copy = new byte[contents.length];
        System.arraycopy(contents, 0, copy, 0, contents.length);
        finalBlob = new ByteArrayResource(copy);
    } else {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Resource is not a Byte Array, data must be transferred");
        }
        // Else the result is written to a new WritableByteChannel
        final ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        WritableByteChannel wChannel = Channels.newChannel(bOut);
        try {
            blob.transferTo(wChannel);
        } catch (IOException e) {
            throw new StorageException(e.getLocalizedMessage(), e);

        }
        finalBlob = new ByteArrayResource(bOut.toByteArray());
    }
    // Creation of a new Resource
    TileObject cached = TileObject.createCompleteTileObject(obj.getLayerName(), obj.getXYZ(),
            obj.getGridSetId(), obj.getBlobFormat(), obj.getParameters(), finalBlob);
    return cached;
}

---

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