Search in sources :

Example 1 with WriterNode

use of org.talend.dataprep.transformation.pipeline.model.WriterNode in project data-prep by Talend.

the class PipelineTransformer method buildExecutable.

@Override
public ExecutableTransformer buildExecutable(DataSet input, Configuration configuration) {
    final RowMetadata rowMetadata = input.getMetadata().getRowMetadata();
    // prepare the fallback row metadata
    RowMetadata fallBackRowMetadata = transformationRowMetadataUtils.getMatchingEmptyRowMetadata(rowMetadata);
    final TransformerWriter writer = writerRegistrationService.getWriter(configuration.formatId(), configuration.output(), configuration.getArguments());
    final ConfiguredCacheWriter metadataWriter = new ConfiguredCacheWriter(contentCache, DEFAULT);
    final TransformationMetadataCacheKey metadataKey = cacheKeyGenerator.generateMetadataKey(configuration.getPreparationId(), configuration.stepId(), configuration.getSourceType());
    final PreparationMessage preparation = configuration.getPreparation();
    // function that from a step gives the rowMetadata associated to the previous/parent step
    final Function<Step, RowMetadata> previousStepRowMetadataSupplier = s -> // 
    Optional.ofNullable(s.getParent()).map(// 
    id -> preparationUpdater.get(id)).orElse(null);
    final Pipeline pipeline = // 
    Pipeline.Builder.builder().withAnalyzerService(// 
    analyzerService).withActionRegistry(// 
    actionRegistry).withPreparation(// 
    preparation).withActions(// 
    actionParser.parse(configuration.getActions())).withInitialMetadata(rowMetadata, // 
    configuration.volume() == SMALL).withMonitor(// 
    configuration.getMonitor()).withFilter(// 
    configuration.getFilter()).withLimit(// 
    configuration.getLimit()).withFilterOut(// 
    configuration.getOutFilter()).withOutput(// 
    () -> new WriterNode(writer, metadataWriter, metadataKey, fallBackRowMetadata)).withStatisticsAdapter(// 
    adapter).withStepMetadataSupplier(// 
    previousStepRowMetadataSupplier).withGlobalStatistics(// 
    configuration.isGlobalStatistics()).allowMetadataChange(// 
    configuration.isAllowMetadataChange()).build();
    // wrap this transformer into an executable transformer
    return new ExecutableTransformer() {

        @Override
        public void execute() {
            try {
                LOGGER.debug("Before transformation: {}", pipeline);
                pipeline.execute(input);
            } finally {
                LOGGER.debug("After transformation: {}", pipeline);
            }
            if (preparation != null) {
                final UpdatedStepVisitor visitor = new UpdatedStepVisitor(preparationUpdater);
                pipeline.accept(visitor);
            }
        }

        @Override
        public void signal(Signal signal) {
            pipeline.signal(signal);
        }
    };
}
Also used : WriterNode(org.talend.dataprep.transformation.pipeline.model.WriterNode) WriterRegistrationService(org.talend.dataprep.transformation.format.WriterRegistrationService) SMALL(org.talend.dataprep.transformation.api.transformer.configuration.Configuration.Volume.SMALL) StepMetadataRepository(org.talend.dataprep.transformation.service.StepMetadataRepository) TransformerWriter(org.talend.dataprep.transformation.api.transformer.TransformerWriter) LoggerFactory(org.slf4j.LoggerFactory) Autowired(org.springframework.beans.factory.annotation.Autowired) Configuration(org.talend.dataprep.transformation.api.transformer.configuration.Configuration) Signal(org.talend.dataprep.transformation.pipeline.Signal) DEFAULT(org.talend.dataprep.cache.ContentCache.TimeToLive.DEFAULT) PreparationMessage(org.talend.dataprep.api.preparation.PreparationMessage) Function(java.util.function.Function) AnalyzerService(org.talend.dataprep.quality.AnalyzerService) ActionParser(org.talend.dataprep.transformation.api.action.ActionParser) CacheKeyGenerator(org.talend.dataprep.cache.CacheKeyGenerator) TransformationMetadataCacheKey(org.talend.dataprep.cache.TransformationMetadataCacheKey) DataSet(org.talend.dataprep.api.dataset.DataSet) Logger(org.slf4j.Logger) ActionRegistry(org.talend.dataprep.transformation.pipeline.ActionRegistry) TransformationRowMetadataUtils(org.talend.dataprep.transformation.service.TransformationRowMetadataUtils) Step(org.talend.dataprep.api.preparation.Step) ConfiguredCacheWriter(org.talend.dataprep.transformation.api.transformer.ConfiguredCacheWriter) ContentCache(org.talend.dataprep.cache.ContentCache) ExecutableTransformer(org.talend.dataprep.transformation.api.transformer.ExecutableTransformer) Component(org.springframework.stereotype.Component) StatisticsAdapter(org.talend.dataprep.dataset.StatisticsAdapter) Optional(java.util.Optional) Pipeline(org.talend.dataprep.transformation.pipeline.Pipeline) Transformer(org.talend.dataprep.transformation.api.transformer.Transformer) RowMetadata(org.talend.dataprep.api.dataset.RowMetadata) TransformationMetadataCacheKey(org.talend.dataprep.cache.TransformationMetadataCacheKey) Step(org.talend.dataprep.api.preparation.Step) Pipeline(org.talend.dataprep.transformation.pipeline.Pipeline) Signal(org.talend.dataprep.transformation.pipeline.Signal) WriterNode(org.talend.dataprep.transformation.pipeline.model.WriterNode) ExecutableTransformer(org.talend.dataprep.transformation.api.transformer.ExecutableTransformer) RowMetadata(org.talend.dataprep.api.dataset.RowMetadata) PreparationMessage(org.talend.dataprep.api.preparation.PreparationMessage) TransformerWriter(org.talend.dataprep.transformation.api.transformer.TransformerWriter) ConfiguredCacheWriter(org.talend.dataprep.transformation.api.transformer.ConfiguredCacheWriter)

Aggregations

Optional (java.util.Optional)1 Function (java.util.function.Function)1 Logger (org.slf4j.Logger)1 LoggerFactory (org.slf4j.LoggerFactory)1 Autowired (org.springframework.beans.factory.annotation.Autowired)1 Component (org.springframework.stereotype.Component)1 DataSet (org.talend.dataprep.api.dataset.DataSet)1 RowMetadata (org.talend.dataprep.api.dataset.RowMetadata)1 PreparationMessage (org.talend.dataprep.api.preparation.PreparationMessage)1 Step (org.talend.dataprep.api.preparation.Step)1 CacheKeyGenerator (org.talend.dataprep.cache.CacheKeyGenerator)1 ContentCache (org.talend.dataprep.cache.ContentCache)1 DEFAULT (org.talend.dataprep.cache.ContentCache.TimeToLive.DEFAULT)1 TransformationMetadataCacheKey (org.talend.dataprep.cache.TransformationMetadataCacheKey)1 StatisticsAdapter (org.talend.dataprep.dataset.StatisticsAdapter)1 AnalyzerService (org.talend.dataprep.quality.AnalyzerService)1 ActionParser (org.talend.dataprep.transformation.api.action.ActionParser)1 ConfiguredCacheWriter (org.talend.dataprep.transformation.api.transformer.ConfiguredCacheWriter)1 ExecutableTransformer (org.talend.dataprep.transformation.api.transformer.ExecutableTransformer)1 Transformer (org.talend.dataprep.transformation.api.transformer.Transformer)1