Examples with ExportFormat org.talend.dataprep.format.export.ExportFormat used on opensource projects

Example 1 with ExportFormat

use of org.talend.dataprep.format.export.ExportFormat in project data-prep by Talend.

the class DataSetExportStrategy method execute.

@Override
public StreamingResponseBody execute(ExportParameters parameters) {
    final String formatName = parameters.getExportType();
    final ExportFormat format = getFormat(formatName);
    // 
    ExportUtils.setExportHeaders(// 
    parameters.getExportName(), // 
    parameters.getArguments().get(ExportFormat.PREFIX + CSVFormat.ParametersCSV.ENCODING), format);
    return outputStream -> {
        // get the dataset content (in an auto-closable block to make sure it is properly closed)
        final String datasetId = parameters.getDatasetId();
        final DataSetGet dataSetGet = applicationContext.getBean(DataSetGet.class, datasetId, false, true);
        final DataSetGetMetadata dataSetGetMetadata = applicationContext.getBean(DataSetGetMetadata.class, datasetId);
        try (InputStream datasetContent = dataSetGet.execute()) {
            try (JsonParser parser = mapper.getFactory().createParser(new InputStreamReader(datasetContent, UTF_8))) {
                // Create dataset
                final DataSet dataSet = mapper.readerFor(DataSet.class).readValue(parser);
                dataSet.setMetadata(dataSetGetMetadata.execute());
                // get the actions to apply (no preparation ==> dataset export ==> no actions)
                Configuration configuration = // 
                Configuration.builder().args(// 
                parameters.getArguments()).outFilter(// 
                rm -> filterService.build(parameters.getFilter(), rm)).format(// 
                format.getName()).volume(// 
                Configuration.Volume.SMALL).output(// 
                outputStream).limit(// 
                limit).build();
                factory.get(configuration).buildExecutable(dataSet, configuration).execute();
            }
        } catch (TDPException e) {
            throw e;
        } catch (Exception e) {
            throw new TDPException(TransformationErrorCodes.UNABLE_TO_TRANSFORM_DATASET, e);
        }
    };
}

Example 2 with ExportFormat

use of org.talend.dataprep.format.export.ExportFormat in project data-prep by Talend.

the class FormatRegistrationServiceTest method shouldNotGetAnyFormat.

@Test
public void shouldNotGetAnyFormat() {
    final ExportFormat noFormat = service.getByName("toto");
    Assert.assertNull(noFormat);
}

Example 3 with ExportFormat

use of org.talend.dataprep.format.export.ExportFormat in project data-prep by Talend.

the class OptimizedExportStrategy method performOptimizedTransform.

private void performOptimizedTransform(ExportParameters parameters, OutputStream outputStream) throws IOException {
    // Initial check
    final OptimizedPreparationInput optimizedPreparationInput = new OptimizedPreparationInput(parameters).invoke();
    if (optimizedPreparationInput == null) {
        throw new IllegalStateException("Unable to use this strategy (call accept() before calling this).");
    }
    final String preparationId = parameters.getPreparationId();
    final String dataSetId = optimizedPreparationInput.getDataSetId();
    final TransformationCacheKey transformationCacheKey = optimizedPreparationInput.getTransformationCacheKey();
    final DataSetMetadata metadata = optimizedPreparationInput.getMetadata();
    final String previousVersion = optimizedPreparationInput.getPreviousVersion();
    final String version = optimizedPreparationInput.getVersion();
    final ExportFormat format = getFormat(parameters.getExportType());
    // Get content from previous step
    try (JsonParser parser = mapper.getFactory().createParser(new InputStreamReader(contentCache.get(transformationCacheKey), UTF_8))) {
        // Create dataset
        final DataSet dataSet = mapper.readerFor(DataSet.class).readValue(parser);
        dataSet.setMetadata(metadata);
        // get the actions to apply (no preparation ==> dataset export ==> no actions)
        final String actions = getActions(preparationId, previousVersion, version);
        final PreparationMessage preparation = getPreparation(preparationId);
        preparation.setSteps(getMatchingSteps(preparation.getSteps(), previousVersion, version));
        LOGGER.debug("Running optimized strategy for preparation {} @ step #{}", preparationId, version);
        // create tee to broadcast to cache + service output
        final TransformationCacheKey key = // 
        cacheKeyGenerator.generateContentKey(// 
        dataSetId, // 
        preparationId, // 
        version, // 
        parameters.getExportType(), // 
        parameters.getFrom(), // 
        parameters.getArguments(), // 
        parameters.getFilter());
        LOGGER.debug("Cache key: " + key.getKey());
        LOGGER.debug("Cache key details: " + key.toString());
        try (final TeeOutputStream tee = new TeeOutputStream(outputStream, contentCache.put(key, ContentCache.TimeToLive.DEFAULT))) {
            final Configuration configuration = // 
            Configuration.builder().args(// 
            parameters.getArguments()).outFilter(// 
            rm -> filterService.build(parameters.getFilter(), rm)).sourceType(parameters.getFrom()).format(// 
            format.getName()).actions(// 
            actions).preparation(// 
            preparation).stepId(// 
            version).volume(// 
            Configuration.Volume.SMALL).output(// 
            tee).limit(// 
            limit).build();
            factory.get(configuration).buildExecutable(dataSet, configuration).execute();
            tee.flush();
        } catch (Throwable e) {
            // NOSONAR
            contentCache.evict(key);
            throw e;
        }
    } catch (TDPException e) {
        throw e;
    } catch (Exception e) {
        throw new TDPException(TransformationErrorCodes.UNABLE_TO_TRANSFORM_DATASET, e);
    }
}

Example 4 with ExportFormat

use of org.talend.dataprep.format.export.ExportFormat in project data-prep by Talend.

the class PreparationExportStrategy method execute.

@Override
public StreamingResponseBody execute(final ExportParameters parameters) {
    final String formatName = parameters.getExportType();
    final ExportFormat format = getFormat(formatName);
    // 
    ExportUtils.setExportHeaders(// 
    parameters.getExportName(), // 
    parameters.getArguments().get(ExportFormat.PREFIX + CSVFormat.ParametersCSV.ENCODING), format);
    return outputStream -> performPreparation(parameters, outputStream);
}

Example 5 with ExportFormat

use of org.talend.dataprep.format.export.ExportFormat in project data-prep by Talend.

the class FormatRegistrationServiceTest method shouldGetFormatByItsName.

@Test
public void shouldGetFormatByItsName() {
    final ExportFormat csvFormat = service.getByName(CSVFormat.CSV);
    Assert.assertTrue(csvFormat instanceof CSVFormat);
}