private void blockDataFile(DataFile dataFile, RetailerSite retailerSite, int blockSize) {
File filePath = null;
PreprocessorHandlerContext context = null;
try {
dataFile.setStartTime(new Date());
// TODO srfisk 2012/07/31 Only split CSV, might split images zip
// when they are very large.
if (dataFile.getImportType().compareTo(ImportType.images_zip.getTableName()) != 0) {
filePath = configurationService.getFileSystem().getDirectory(dataFile.getFilePath(), true);
TableDefinition tableDefinition = this.getTableDefinition(retailerSite, dataFile);
ImportType importType = ImportType.getTypeFromTableName(dataFile.getImportType());
String encoding = this.getDataImportEncoding(tableDefinition, filePath);
String separator =
Character.toString(
(char) Integer.valueOf(tableDefinition.getProperty("separator", "9")).intValue());
String quotechar = this.getQuoteCharacter(tableDefinition);
int blockCount = 1;
int totalRowCount = 0;
boolean noSplit = false;
boolean done = false;
context =
this.createContext(
retailerSite, dataFile, filePath, tableDefinition, encoding, separator, quotechar);
while (!done) {
context.startWriters(blockCount);
context.writeHeader();
Row row = null;
while ((row = context.reader.readNext()) != null && context.rowCount < blockSize) {
context.writeRow(row);
}
context.closeWriters();
blockCount++;
if (context.isEmptyBlock()) {
done = true;
continue;
}
context.createDataFiles(
retailerSite, importType.getTableName(), importType.getPriority());
context.inQueueDataFiles();
}
dataFile.setHost(null);
dataFile.setNumRows(totalRowCount);
if (!noSplit) {
dataFile.setEndDate(new Date());
dataFile.setEndTime(new Date());
dataFile.setStatus(this.getEndStatus());
} else {
dataFile.setStatus(FileStatus.IN_QUEUE);
}
} else {
dataFile.setHost(null);
dataFile.setStatus(FileStatus.IN_QUEUE);
}
dataFileRepository.update(dataFile);
} catch (IOException e) {
logger.error(String.format("Failed to reading %s data file", filePath), e);
dataFile.setStatus(FileStatus.ERROR_READ);
dataFileRepository.update(dataFile);
} catch (CSVReaderException e) {
logger.error(String.format("Failed to reading %s data file", filePath), e);
dataFile.setStatus(FileStatus.ERROR_WRITE);
dataFileRepository.update(dataFile);
} catch (CSVWriterException e) {
logger.error(String.format("Failed to reading %s data file", filePath), e);
dataFile.setStatus(FileStatus.ERROR_READ);
dataFileRepository.update(dataFile);
} catch (Throwable t) {
logger.error(String.format("Failed to unknown %s data file", filePath), t);
dataFile.setStatus(FileStatus.ERROR_UNKNOWN);
dataFileRepository.update(dataFile);
} finally {
if (context != null) {
try {
context.cleanup();
} catch (IOException e) {
// Ignore, did everything we could to close it.
}
}
}
}
