Examples with ElasticsearchIO com.google.cloud.teleport.v2.elasticsearch.utils.ElasticsearchIO used on opensource projects

Example 1 with ElasticsearchIO

use of com.google.cloud.teleport.v2.elasticsearch.utils.ElasticsearchIO in project DataflowTemplates by GoogleCloudPlatform.

the class GCSToElasticsearch method run.

/**
 * Runs the pipeline to completion with the specified options.
 *
 * @param options The execution options.
 * @return The pipeline result.
 */
private static PipelineResult run(GCSToElasticsearchOptions options) {
    // Create the pipeline
    Pipeline pipeline = Pipeline.create(options);
    // Register the coder for pipeline
    CoderRegistry coderRegistry = pipeline.getCoderRegistry();
    coderRegistry.registerCoderForType(FAILSAFE_ELEMENT_CODER.getEncodedTypeDescriptor(), FAILSAFE_ELEMENT_CODER);
    // Throw error if containsHeaders is true and a schema or Udf is also set.
    if (options.getContainsHeaders()) {
        checkArgument(options.getJavascriptTextTransformGcsPath() == null && options.getJsonSchemaPath() == null, "Cannot parse file containing headers with UDF or Json schema.");
    }
    // Throw error if only one retry configuration parameter is set.
    checkArgument((options.getMaxRetryAttempts() == null && options.getMaxRetryDuration() == null) || (options.getMaxRetryAttempts() != null && options.getMaxRetryDuration() != null), "To specify retry configuration both max attempts and max duration must be set.");
    /*
     * Steps: 1) Read records from CSV(s) via {@link CsvConverters.ReadCsv}.
     *        2) Convert lines to JSON strings via {@link CsvConverters.LineToFailsafeJson}.
     *        3a) Write JSON strings as documents to Elasticsearch via {@link ElasticsearchIO}.
     *        3b) Write elements that failed processing to {@link org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO}.
     */
    PCollectionTuple convertedCsvLines = pipeline.apply("ReadCsv", CsvConverters.ReadCsv.newBuilder().setCsvFormat(options.getCsvFormat()).setDelimiter(options.getDelimiter()).setHasHeaders(options.getContainsHeaders()).setInputFileSpec(options.getInputFileSpec()).setHeaderTag(CSV_HEADERS).setLineTag(CSV_LINES).setFileEncoding(options.getCsvFileEncoding()).build()).apply("ConvertLine", CsvConverters.LineToFailsafeJson.newBuilder().setDelimiter(options.getDelimiter()).setUdfFileSystemPath(options.getJavascriptTextTransformGcsPath()).setUdfFunctionName(options.getJavascriptTextTransformFunctionName()).setJsonSchemaPath(options.getJsonSchemaPath()).setHeaderTag(CSV_HEADERS).setLineTag(CSV_LINES).setUdfOutputTag(PROCESSING_OUT).setUdfDeadletterTag(PROCESSING_DEADLETTER_OUT).build());
    /*
     * Step 3a: Write elements that were successfully processed to Elasticsearch using {@link WriteToElasticsearch}.
     */
    convertedCsvLines.get(PROCESSING_OUT).apply("GetJsonDocuments", MapElements.into(TypeDescriptors.strings()).via(FailsafeElement::getPayload)).apply("WriteToElasticsearch", WriteToElasticsearch.newBuilder().setOptions(options.as(GCSToElasticsearchOptions.class)).build());
    /*
     * Step 3b: Write elements that failed processing to deadletter table via {@link BigQueryIO}.
     */
    convertedCsvLines.get(PROCESSING_DEADLETTER_OUT).apply("AddTimestamps", WithTimestamps.of((FailsafeElement<String, String> failures) -> new Instant())).apply("WriteFailedElementsToBigQuery", WriteStringMessageErrors.newBuilder().setErrorRecordsTable(options.getDeadletterTable()).setErrorRecordsTableSchema(SchemaUtils.DEADLETTER_SCHEMA).build());
    return pipeline.run();
}