Example usage for com.google.common.net HttpHeaders CONTENT

Introduction

In this page you can find the example usage for com.google.common.net HttpHeaders CONTENT_RANGE.

Prototype

String CONTENT_RANGE

To view the source code for com.google.common.net HttpHeaders CONTENT_RANGE.

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Document

The HTTP Content-Range header field name.

Usage

From source file:org.eclipse.hawkbit.rest.util.RestResourceConversionHelper.java

private static void handleStandardRangeRequest(final Artifact artifact, final HttpServletResponse response,
        final DbArtifact file, final ControllerManagement controllerManagement, final Long statusId,
        final List<ByteRange> ranges) {
    final ByteRange r = ranges.get(0);
    response.setHeader(HttpHeaders.CONTENT_RANGE,
            "bytes " + r.getStart() + "-" + r.getEnd() + "/" + r.getTotal());
    response.setHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(r.getLength()));
    response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);

    try (InputStream inputStream = file.getFileInputStream()) {
        copyStreams(inputStream, response.getOutputStream(), controllerManagement, statusId, r.getStart(),
                r.getLength());/*from  w  ww.j av a 2  s  . co  m*/
    } catch (final IOException e) {
        LOG.error("standardRangeRequest of file ({}) failed!", artifact.getFilename(), e);
        throw new FileSteamingFailedException(artifact.getFilename());
    }
}

From source file:org.jclouds.b2.blobstore.B2BlobStore.java

@Override
public Blob getBlob(String container, String name, GetOptions options) {
    if (options.getIfMatch() != null || options.getIfNoneMatch() != null || options.getIfModifiedSince() != null
            || options.getIfUnmodifiedSince() != null) {
        throw new UnsupportedOperationException("B2 does not support conditional get");
    }/*from   ww  w  .ja  v  a 2 s.c  om*/

    B2Object b2Object = api.getObjectApi().downloadFileByName(container, name,
            blob2ObjectGetOptions.apply(options));
    if (b2Object == null) {
        return null;
    }

    MutableBlobMetadata metadata = toBlobMetadata(container, b2Object);
    Blob blob = new BlobImpl(metadata);
    blob.setPayload(b2Object.payload());
    if (b2Object.contentRange() != null) {
        blob.getAllHeaders().put(HttpHeaders.CONTENT_RANGE, b2Object.contentRange());
    }
    return blob;
}

From source file:org.jclouds.blobstore.config.LocalBlobStore.java

@Override
public Blob getBlob(String containerName, String key, GetOptions options) {
    logger.debug("Retrieving blob with key %s from container %s", key, containerName);
    // If the container doesn't exist, an exception is thrown
    if (!storageStrategy.containerExists(containerName)) {
        logger.debug("Container %s does not exist", containerName);
        throw cnfe(containerName);
    }/*from  www  .  ja  v a  2 s .c  o m*/
    // If the blob doesn't exist, a null object is returned
    if (!storageStrategy.blobExists(containerName, key)) {
        logger.debug("Item %s does not exist in container %s", key, containerName);
        return null;
    }

    Blob blob = loadBlob(containerName, key);

    if (options != null) {
        String eTag = blob.getMetadata().getETag();
        if (eTag != null) {
            eTag = maybeQuoteETag(eTag);
            if (options.getIfMatch() != null) {
                if (!eTag.equals(maybeQuoteETag(options.getIfMatch())))
                    throw returnResponseException(412);
            }
            if (options.getIfNoneMatch() != null) {
                if (eTag.equals(maybeQuoteETag(options.getIfNoneMatch())))
                    throw returnResponseException(304);
            }
        }
        if (options.getIfModifiedSince() != null) {
            Date modifiedSince = options.getIfModifiedSince();
            if (blob.getMetadata().getLastModified().before(modifiedSince)) {
                HttpResponse response = HttpResponse.builder().statusCode(304).build();
                throw new HttpResponseException(String.format("%1$s is before %2$s",
                        blob.getMetadata().getLastModified(), modifiedSince), null, response);
            }

        }
        if (options.getIfUnmodifiedSince() != null) {
            Date unmodifiedSince = options.getIfUnmodifiedSince();
            if (blob.getMetadata().getLastModified().after(unmodifiedSince)) {
                HttpResponse response = HttpResponse.builder().statusCode(412).build();
                throw new HttpResponseException(String.format("%1$s is after %2$s",
                        blob.getMetadata().getLastModified(), unmodifiedSince), null, response);
            }
        }
        blob = copyBlob(blob);

        if (options.getRanges() != null && !options.getRanges().isEmpty()) {
            long size = 0;
            ImmutableList.Builder<ByteSource> streams = ImmutableList.builder();

            // Try to convert payload to ByteSource, otherwise wrap it.
            ByteSource byteSource;
            try {
                byteSource = (ByteSource) blob.getPayload().getRawContent();
            } catch (ClassCastException cce) {
                try {
                    byteSource = ByteSource
                            .wrap(ByteStreams2.toByteArrayAndClose(blob.getPayload().openStream()));
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }

            for (String s : options.getRanges()) {
                // HTTP uses a closed interval while Java array indexing uses a
                // half-open interval.
                long offset = 0;
                long last = blob.getPayload().getContentMetadata().getContentLength() - 1;
                if (s.startsWith("-")) {
                    offset = last - Long.parseLong(s.substring(1)) + 1;
                    if (offset < 0) {
                        offset = 0;
                    }
                } else if (s.endsWith("-")) {
                    offset = Long.parseLong(s.substring(0, s.length() - 1));
                } else if (s.contains("-")) {
                    String[] firstLast = s.split("\\-");
                    offset = Long.parseLong(firstLast[0]);
                    last = Long.parseLong(firstLast[1]);
                } else {
                    throw new IllegalArgumentException("illegal range: " + s);
                }

                if (offset >= blob.getPayload().getContentMetadata().getContentLength()) {
                    throw new IllegalArgumentException("illegal range: " + s);
                }
                if (last + 1 > blob.getPayload().getContentMetadata().getContentLength()) {
                    last = blob.getPayload().getContentMetadata().getContentLength() - 1;
                }
                streams.add(byteSource.slice(offset, last - offset + 1));
                size += last - offset + 1;
                blob.getAllHeaders().put(HttpHeaders.CONTENT_RANGE, "bytes " + offset + "-" + last + "/"
                        + blob.getPayload().getContentMetadata().getContentLength());
            }
            ContentMetadata cmd = blob.getPayload().getContentMetadata();
            blob.setPayload(ByteSource.concat(streams.build()));
            HttpUtils.copy(cmd, blob.getPayload().getContentMetadata());
            blob.getPayload().getContentMetadata().setContentLength(size);
            blob.getMetadata().setSize(size);
        }
    }
    checkNotNull(blob.getPayload(), "payload " + blob);
    return blob;
}

From source file:org.gaul.s3proxy.S3ProxyHandler.java

private void handleGetBlob(HttpServletRequest request, HttpServletResponse response, BlobStore blobStore,
        String containerName, String blobName) throws IOException, S3Exception {
    int status = HttpServletResponse.SC_OK;
    GetOptions options = new GetOptions();
    String range = request.getHeader(HttpHeaders.RANGE);
    if (range != null && range.startsWith("bytes=") &&
    // ignore multiple ranges
            range.indexOf(',') == -1) {
        range = range.substring("bytes=".length());
        String[] ranges = range.split("-", 2);
        if (ranges[0].isEmpty()) {
            options.tail(Long.parseLong(ranges[1]));
        } else if (ranges[1].isEmpty()) {
            options.startAt(Long.parseLong(ranges[0]));
        } else {//w ww  .  ja v a  2 s. co m
            options.range(Long.parseLong(ranges[0]), Long.parseLong(ranges[1]));
        }
        status = HttpServletResponse.SC_PARTIAL_CONTENT;
    }

    Blob blob;
    try {
        blob = blobStore.getBlob(containerName, blobName, options);
    } catch (IllegalArgumentException iae) {
        throw new S3Exception(S3ErrorCode.INVALID_RANGE);
    }
    if (blob == null) {
        throw new S3Exception(S3ErrorCode.NO_SUCH_KEY);
    }

    response.setStatus(status);

    addMetadataToResponse(response, blob.getMetadata());
    Collection<String> contentRanges = blob.getAllHeaders().get(HttpHeaders.CONTENT_RANGE);
    if (!contentRanges.isEmpty()) {
        response.addHeader(HttpHeaders.CONTENT_RANGE, contentRanges.iterator().next());
    }

    try (InputStream is = blob.getPayload().openStream(); OutputStream os = response.getOutputStream()) {
        ByteStreams.copy(is, os);
        os.flush();
    }
}

Example usage for com.google.common.net HttpHeaders CONTENT_RANGE

Introduction

Prototype

Document

Usage