use of io.airlift.tpch.LineItem in project presto by prestodb.
the class BenchmarkPageProcessor method createInputPage.
public static Page createInputPage() {
PageBuilder pageBuilder = new PageBuilder(ImmutableList.of(DOUBLE, DOUBLE, VARCHAR, DOUBLE));
LineItemGenerator lineItemGenerator = new LineItemGenerator(1, 1, 1);
Iterator<LineItem> iterator = lineItemGenerator.iterator();
for (int i = 0; i < 10_000; i++) {
pageBuilder.declarePosition();
LineItem lineItem = iterator.next();
DOUBLE.writeDouble(pageBuilder.getBlockBuilder(EXTENDED_PRICE), lineItem.getExtendedPrice());
DOUBLE.writeDouble(pageBuilder.getBlockBuilder(DISCOUNT), lineItem.getDiscount());
DATE.writeLong(pageBuilder.getBlockBuilder(SHIP_DATE), lineItem.getShipDate());
DOUBLE.writeDouble(pageBuilder.getBlockBuilder(QUANTITY), lineItem.getQuantity());
}
return pageBuilder.build();
}
use of io.airlift.tpch.LineItem in project presto by prestodb.
the class TestHivePageSink method writeTestFile.
private static long writeTestFile(HiveClientConfig config, ExtendedHiveMetastore metastore, String outputPath) {
HiveTransactionHandle transaction = new HiveTransactionHandle();
ConnectorPageSink pageSink = createPageSink(transaction, config, metastore, new Path("file:///" + outputPath));
List<LineItemColumn> columns = getTestColumns();
List<Type> columnTypes = columns.stream().map(LineItemColumn::getType).map(TestHivePageSink::getHiveType).map(hiveType -> hiveType.getType(TYPE_MANAGER)).collect(toList());
PageBuilder pageBuilder = new PageBuilder(columnTypes);
int rows = 0;
for (LineItem lineItem : new LineItemGenerator(0.01, 1, 1)) {
rows++;
if (rows >= NUM_ROWS) {
break;
}
pageBuilder.declarePosition();
for (int i = 0; i < columns.size(); i++) {
LineItemColumn column = columns.get(i);
BlockBuilder blockBuilder = pageBuilder.getBlockBuilder(i);
switch(column.getType().getBase()) {
case IDENTIFIER:
BIGINT.writeLong(blockBuilder, column.getIdentifier(lineItem));
break;
case INTEGER:
INTEGER.writeLong(blockBuilder, column.getInteger(lineItem));
break;
case DATE:
DATE.writeLong(blockBuilder, column.getDate(lineItem));
break;
case DOUBLE:
DOUBLE.writeDouble(blockBuilder, column.getDouble(lineItem));
break;
case VARCHAR:
createUnboundedVarcharType().writeSlice(blockBuilder, Slices.utf8Slice(column.getString(lineItem)));
break;
default:
throw new IllegalArgumentException("Unsupported type " + column.getType());
}
}
}
Page page = pageBuilder.build();
pageSink.appendPage(page);
getFutureValue(pageSink.finish());
File outputDir = new File(outputPath);
List<File> files = ImmutableList.copyOf(outputDir.listFiles((dir, name) -> !name.endsWith(".crc")));
File outputFile = getOnlyElement(files);
long length = outputFile.length();
ConnectorPageSource pageSource = createPageSource(transaction, config, outputFile);
List<Page> pages = new ArrayList<>();
while (!pageSource.isFinished()) {
Page nextPage = pageSource.getNextPage();
if (nextPage != null) {
nextPage.assureLoaded();
pages.add(nextPage);
}
}
MaterializedResult expectedResults = toMaterializedResult(getSession(config), columnTypes, ImmutableList.of(page));
MaterializedResult results = toMaterializedResult(getSession(config), columnTypes, pages);
assertEquals(results, expectedResults);
return length;
}
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