Examples with FileDataHandler org.folio.rest.resource.handlers.FileDataHandler used on opensource projects

Example 1 with FileDataHandler

use of org.folio.rest.resource.handlers.FileDataHandler in project raml-module-builder by folio-org.

the class ProcessUploads method parseFile.

/**
 * Main work done by the FileDataHandler which reads in line by line and passes on that line
 * to the correct Importer implementation for line processing
 * @param fileSize
 * @param conf
 * @param replyHandler - the handler returns a job object with success and error counter parameters
 * to be persisted by the job runner
 */
private void parseFile(long fileSize, Job conf, Handler<AsyncResult<Job>> replyHandler) {
    String file = conf.getParameters().get(0).getValue();
    vertx.fileSystem().open(file, new OpenOptions(), ar -> {
        if (ar.succeeded()) {
            AsyncFile rs = ar.result();
            rs.handler(new FileDataHandler(vertx, conf, fileSize, importerCache.get(conf.getName()), reply -> {
                if (reply.failed()) {
                    if (reply.cause().getMessage().contains(RTFConsts.STATUS_ERROR_THRESHOLD)) {
                        log.error("Stopping import... Error threshold exceeded for file " + file);
                        try {
                            // can throw an exception if the error threshold is met at
                            // the last bulk where the endHandler is called before the stop on error is called
                            rs.pause().close();
                        } catch (Exception e) {
                            log.error("Error threshold hit on last block of data ", e);
                        }
                        replyHandler.handle(io.vertx.core.Future.failedFuture(RTFConsts.STATUS_ERROR_THRESHOLD));
                    }
                } else {
                    replyHandler.handle(io.vertx.core.Future.succeededFuture(reply.result()));
                }
            }));
            rs.exceptionHandler(t -> {
                log.error("Error reading from file " + file, t);
                replyHandler.handle(io.vertx.core.Future.failedFuture(RTFConsts.STATUS_ERROR));
            });
            rs.endHandler(v -> {
                rs.close(ar2 -> {
                    if (ar2.failed()) {
                        log.error("Error closing file " + file, ar2.cause());
                    }
                });
            });
        } else {
            log.error("Error opening file " + file, ar.cause());
            replyHandler.handle(io.vertx.core.Future.failedFuture(RTFConsts.STATUS_ERROR));
        }
    });
}