Examples with MAP com.facebook.presto.orc.metadata.OrcType.OrcTypeKind.MAP used on opensource projects

Example 1 with MAP

use of com.facebook.presto.orc.metadata.OrcType.OrcTypeKind.MAP in project presto by prestodb.

the class TestDecryption method validateFileStatistics.

private static void validateFileStatistics(TempFile tempFile, Optional<DwrfWriterEncryption> dwrfWriterEncryption, Map<Integer, Slice> readerIntermediateKeys) throws IOException {
    OrcReader readerNoKeys = OrcTester.createCustomOrcReader(tempFile, DWRF, false, ImmutableMap.of());
    if (readerNoKeys.getFooter().getStripes().isEmpty()) {
        // files w/o stripes don't have stats
        assertEquals(readerNoKeys.getFooter().getFileStats().size(), 0);
        return;
    }
    if (dwrfWriterEncryption.isPresent()) {
        List<OrcType> types = readerNoKeys.getTypes();
        List<ColumnStatistics> fileStatsNoKey = readerNoKeys.getFooter().getFileStats();
        assertEquals(fileStatsNoKey.size(), types.size());
        Set<Integer> allEncryptedNodes = dwrfWriterEncryption.get().getWriterEncryptionGroups().stream().flatMap(group -> group.getNodes().stream()).flatMap(node -> collectNodeTree(types, node).stream()).collect(Collectors.toSet());
        for (Set<Integer> readerKeyNodes : Sets.powerSet(readerIntermediateKeys.keySet())) {
            Map<Integer, Slice> readerKeys = new HashMap<>();
            readerKeyNodes.forEach(node -> readerKeys.put(node, readerIntermediateKeys.get(node)));
            // nodes that are supposed to be decrypted by the reader
            Set<Integer> decryptedNodes = readerKeys.keySet().stream().flatMap(node -> collectNodeTree(types, node).stream()).collect(Collectors.toSet());
            // decryptedNodes should be a subset of encrypted nodes
            assertTrue(allEncryptedNodes.containsAll(decryptedNodes));
            OrcReader readerWithKeys = OrcTester.createCustomOrcReader(tempFile, DWRF, false, readerIntermediateKeys);
            List<ColumnStatistics> fileStatsWithKey = readerWithKeys.getFooter().getFileStats();
            assertEquals(fileStatsWithKey.size(), types.size());
            for (int node = 0; node < types.size(); node++) {
                ColumnStatistics statsWithKey = fileStatsWithKey.get(node);
                ColumnStatistics statsNoKey = fileStatsNoKey.get(node);
                OrcType type = types.get(node);
                // encrypted nodes should have no type info
                if (allEncryptedNodes.contains(node)) {
                    assertTrue(hasNoTypeStats(statsNoKey));
                } else {
                    assertStatsTypeMatch(statsNoKey, type);
                    assertStatsTypeMatch(statsWithKey, type);
                    assertEquals(statsNoKey, statsWithKey);
                }
                if (decryptedNodes.contains(node)) {
                    assertStatsTypeMatch(statsWithKey, type);
                }
            }
        }
    }
}