Examples with StrictlyBoundedInputStream org.talend.dataprep.dataset.store.content.StrictlyBoundedInputStream used on opensource projects

Example 1 with StrictlyBoundedInputStream

use of org.talend.dataprep.dataset.store.content.StrictlyBoundedInputStream in project data-prep by Talend.

the class DataSetService method updateRawDataSet.

/**
 * Updates a data set content and metadata. If no data set exists for given id, data set is silently created.
 *
 * @param dataSetId The id of data set to be updated.
 * @param name The new name for the data set. Empty name (or <code>null</code>) does not update dataset name.
 * @param dataSetContent The new content for the data set. If empty, existing content will <b>not</b> be replaced.
 * For delete operation, look at {@link #delete(String)}.
 */
@RequestMapping(value = "/datasets/{id}/raw", method = PUT)
@ApiOperation(value = "Update a data set by id", notes = "Update a data set content based on provided id and PUT body. Id should be a UUID returned by the list operation. Not valid or non existing data set id returns empty content. For documentation purposes, body is typed as 'text/plain' but operation accepts binary content too.")
@Timed
@VolumeMetered
public String updateRawDataSet(// 
@PathVariable(value = "id") @ApiParam(name = "id", value = "Id of the data set to update") String dataSetId, // 
@RequestParam(value = "name", required = false) @ApiParam(name = "name", value = "New value for the data set name") String name, // 
@RequestParam(value = "size", required = false) @ApiParam(name = "size", value = "The size of the dataSet") Long size, @ApiParam(value = "content") InputStream dataSetContent) {
    LOG.debug("updating dataset content #{}", dataSetId);
    if (name != null) {
        checkDataSetName(name);
    }
    DataSetMetadata currentDataSetMetadata = dataSetMetadataRepository.get(dataSetId);
    if (currentDataSetMetadata == null) {
        return create(name, null, size, TEXT_PLAIN_VALUE, dataSetContent);
    } else {
        // just like the creation, let's make sure invalid size forbids dataset creation
        if (size != null && size < 0) {
            LOG.warn("invalid size provided {}", size);
            throw new TDPException(UNSUPPORTED_CONTENT);
        }
        final UpdateDataSetCacheKey cacheKey = new UpdateDataSetCacheKey(currentDataSetMetadata.getId());
        final DistributedLock lock = dataSetMetadataRepository.createDatasetMetadataLock(currentDataSetMetadata.getId());
        try {
            lock.lock();
            // check the size if it's available (quick win)
            if (size != null && size > 0) {
                quotaService.checkIfAddingSizeExceedsAvailableStorage(Math.abs(size - currentDataSetMetadata.getDataSetSize()));
            }
            final DataSetMetadataBuilder datasetBuilder = metadataBuilder.metadata().id(currentDataSetMetadata.getId());
            datasetBuilder.copyNonContentRelated(currentDataSetMetadata);
            datasetBuilder.modified(System.currentTimeMillis());
            if (!StringUtils.isEmpty(name)) {
                datasetBuilder.name(name);
            }
            final DataSetMetadata updatedDataSetMetadata = datasetBuilder.build();
            // Save data set content into cache to make sure there's enough space in the content store
            final long maxDataSetSizeAllowed = getMaxDataSetSizeAllowed();
            final StrictlyBoundedInputStream sizeCalculator = new StrictlyBoundedInputStream(dataSetContent, maxDataSetSizeAllowed);
            try (OutputStream cacheEntry = cacheManager.put(cacheKey, TimeToLive.DEFAULT)) {
                IOUtils.copy(sizeCalculator, cacheEntry);
            }
            // once fully copied to the cache, we know for sure that the content store has enough space, so let's copy
            // from the cache to the content store
            PipedInputStream toContentStore = new PipedInputStream();
            PipedOutputStream fromCache = new PipedOutputStream(toContentStore);
            Runnable r = () -> {
                try (final InputStream input = cacheManager.get(cacheKey)) {
                    IOUtils.copy(input, fromCache);
                    // it's important to close this stream, otherwise the piped stream will never close
                    fromCache.close();
                } catch (IOException e) {
                    throw new TDPException(UNABLE_TO_CREATE_OR_UPDATE_DATASET, e);
                }
            };
            executor.execute(r);
            contentStore.storeAsRaw(updatedDataSetMetadata, toContentStore);
            // update the dataset metadata with its new size
            updatedDataSetMetadata.setDataSetSize(sizeCalculator.getTotal());
            dataSetMetadataRepository.save(updatedDataSetMetadata);
            // publishing update event
            publisher.publishEvent(new DatasetUpdatedEvent(updatedDataSetMetadata));
        } catch (StrictlyBoundedInputStream.InputStreamTooLargeException e) {
            LOG.warn("Dataset update {} cannot be done, new content is too big", currentDataSetMetadata.getId());
            throw new TDPException(MAX_STORAGE_MAY_BE_EXCEEDED, e, build().put("limit", e.getMaxSize()));
        } catch (IOException e) {
            LOG.error("Error updating the dataset", e);
            throw new TDPException(UNABLE_TO_CREATE_OR_UPDATE_DATASET, e);
        } finally {
            dataSetContentToNull(dataSetContent);
            // whatever the outcome the cache needs to be cleaned
            if (cacheManager.has(cacheKey)) {
                cacheManager.evict(cacheKey);
            }
            lock.unlock();
        }
        // Content was changed, so queue events (format analysis, content indexing for search...)
        analyzeDataSet(currentDataSetMetadata.getId(), true, emptyList());
        return currentDataSetMetadata.getId();
    }
}

Example 2 with StrictlyBoundedInputStream

use of org.talend.dataprep.dataset.store.content.StrictlyBoundedInputStream in project data-prep by Talend.

the class DataSetService method create.

/**
 * Creates a new data set and returns the new data set id as text in the response.
 *
 * @param name An optional name for the new data set (might be <code>null</code>).
 * @param size An optional size for the newly created data set.
 * @param contentType the request content type.
 * @param content The raw content of the data set (might be a CSV, XLS...) or the connection parameter in case of a
 * remote csv.
 * @return The new data id.
 * @see DataSetService#get(boolean, boolean, String, String)
 */
// @formatter:off
@RequestMapping(value = "/datasets", method = POST, produces = TEXT_PLAIN_VALUE)
@ApiOperation(value = "Create a data set", produces = TEXT_PLAIN_VALUE, notes = "Create a new data set based on content provided in POST body. For documentation purposes, body is typed as 'text/plain' but operation accepts binary content too. Returns the id of the newly created data set.")
@Timed
@VolumeMetered
public String create(@ApiParam(value = "User readable name of the data set (e.g. 'Finance Report 2015', 'Test Data Set').") @RequestParam(defaultValue = "") String name, @ApiParam(value = "An optional tag to be added in data set metadata once created.") @RequestParam(defaultValue = "") String tag, @ApiParam(value = "Size of the data set, in bytes.") @RequestParam(required = false) Long size, @RequestHeader(CONTENT_TYPE) String contentType, @ApiParam(value = "content") InputStream content) {
    // @formatter:on
    checkDataSetName(name);
    final String id = UUID.randomUUID().toString();
    final Marker marker = Markers.dataset(id);
    LOG.debug(marker, "Creating...");
    // sanity check
    if (size != null && size < 0) {
        LOG.warn("invalid size provided {}", size);
        throw new TDPException(UNEXPECTED_CONTENT, build().put("size", size));
    }
    // check that the name is not already taken
    checkIfNameIsAvailable(name);
    // get the location out of the content type and the request body
    final DataSetLocation location;
    try {
        location = datasetLocator.getDataSetLocation(contentType, content);
    } catch (IOException e) {
        throw new TDPException(DataSetErrorCodes.UNABLE_TO_READ_DATASET_LOCATION, e);
    }
    DataSetMetadata dataSetMetadata = null;
    final TDPException hypotheticalException;
    try {
        // if the size is provided, let's check if the quota will not be exceeded
        if (size != null && size > 0) {
            quotaService.checkIfAddingSizeExceedsAvailableStorage(size);
        }
        dataSetMetadata = // 
        metadataBuilder.metadata().id(// 
        id).name(// 
        name).author(// 
        security.getUserId()).location(// 
        location).created(// 
        System.currentTimeMillis()).tag(// 
        tag).build();
        // Indicate data set is being imported
        dataSetMetadata.getLifecycle().setImporting(true);
        // Save data set content
        LOG.debug(marker, "Storing content...");
        final long maxDataSetSizeAllowed = getMaxDataSetSizeAllowed();
        final StrictlyBoundedInputStream sizeCalculator = new StrictlyBoundedInputStream(content, maxDataSetSizeAllowed);
        contentStore.storeAsRaw(dataSetMetadata, sizeCalculator);
        dataSetMetadata.setDataSetSize(sizeCalculator.getTotal());
        LOG.debug(marker, "Content stored.");
        // Create the new data set
        dataSetMetadataRepository.save(dataSetMetadata);
        LOG.debug(marker, "dataset metadata stored {}", dataSetMetadata);
        // Queue events (format analysis, content indexing for search...)
        analyzeDataSet(id, true, emptyList());
        LOG.debug(marker, "Created!");
        return id;
    } catch (StrictlyBoundedInputStream.InputStreamTooLargeException e) {
        hypotheticalException = new TDPException(MAX_STORAGE_MAY_BE_EXCEEDED, e, build().put("limit", e.getMaxSize()));
    } catch (TDPException e) {
        hypotheticalException = e;
    } catch (Exception e) {
        hypotheticalException = new TDPException(UNABLE_CREATE_DATASET, e);
    } finally {
        // because the client might still be writing the request content, closing the connexion right now
        // might end up in a 'connection reset' or a 'broken pipe' error in API.
        // 
        // So, let's read fully the request content before closing the connection.
        dataSetContentToNull(content);
    }
    dataSetMetadataRepository.remove(id);
    if (dataSetMetadata != null) {
        try {
            contentStore.delete(dataSetMetadata);
        } catch (Exception e) {
            LOG.error("Unable to delete uploaded data.", e);
        }
    }
    throw hypotheticalException;
}