Examples with NiFiTemplateImport com.thinkbiganalytics.feedmgr.service.template.importing.model.NiFiTemplateImport used on opensource projects

Example 1 with NiFiTemplateImport

use of com.thinkbiganalytics.feedmgr.service.template.importing.model.NiFiTemplateImport in project kylo by Teradata.

the class AbstractImportTemplateRoutine method importIntoNiFi.

/**
 * Import a template string into NiFi as a template to use
 */
public NiFiTemplateImport importIntoNiFi(ImportTemplate template, ImportTemplateOptions importOptions) throws ImportException {
    TemplateDTO dto = null;
    String templateName = null;
    String oldTemplateXml = null;
    ImportComponentOption nifiTemplateImport = importOptions.findImportComponentOption(ImportComponent.NIFI_TEMPLATE);
    if (nifiTemplateImport.isValidForImport()) {
        try {
            templateName = NifiTemplateParser.getTemplateName(template.getNifiTemplateXml());
            template.setTemplateName(templateName);
            dto = nifiRestClient.getTemplateByName(templateName);
            if (dto != null) {
                oldTemplateXml = nifiRestClient.getTemplateXml(dto.getId());
                template.setNifiTemplateId(dto.getId());
                if (importOptions.isImportAndOverwrite(ImportComponent.NIFI_TEMPLATE) && nifiTemplateImport.isValidForImport()) {
                    nifiRestClient.deleteTemplate(dto.getId());
                } else if (!template.isZipFile()) {
                    // if its not a zip file we need to error out if the user has decided not to overwrite when it already exists
                    uploadProgressService.addUploadStatus(importOptions.getUploadKey(), "The template " + templateName + " already exists in NiFi. Please choose the option to replace the template and try again.", true, false);
                    template.setValid(false);
                }
            }
        } catch (ParserConfigurationException | XPathExpressionException | IOException | SAXException e) {
            throw new ImportException("The xml file you are trying to import is not a valid NiFi template.  Please try again. " + e.getMessage());
        }
        boolean register = (dto == null || (importOptions.isImportAndOverwrite(ImportComponent.NIFI_TEMPLATE) && nifiTemplateImport.isValidForImport()));
        // attempt to import the xml into NiFi if its new, or if the user said to overwrite
        if (register) {
            UploadProgressMessage statusMessage = uploadProgressService.addUploadStatus(importOptions.getUploadKey(), "Importing " + templateName + " into NiFi");
            log.info("Attempting to import Nifi Template: {} for file {}", templateName, template.getFileName());
            dto = nifiRestClient.importTemplate(template.getTemplateName(), template.getNifiTemplateXml());
            template.setNifiTemplateId(dto.getId());
            statusMessage.update("Imported " + templateName + " into NiFi", true);
        }
    }
    uploadProgressService.completeSection(importOptions, ImportSection.Section.IMPORT_NIFI_TEMPLATE);
    return new NiFiTemplateImport(oldTemplateXml, dto);
}