Package com.facebook.presto.serde

Examples of com.facebook.presto.serde.BlocksFileReader

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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = DEFAULT_ENCODING;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.exists()) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = DEFAULT_ENCODING;
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            if (file.exists()) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = DEFAULT_ENCODING;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(blockEncodingSerde, slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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            if (file.length() > 0) {
                Slice slice = mappedFileCache.getUnchecked(file.getAbsoluteFile());
                checkState(file.length() == slice.length(), "File %s, length %s was mapped to Slice length %s", file.getAbsolutePath(), file.length(), slice.length());
                // Compute optimal encoding from stats
                BlocksFileReader blocks = BlocksFileReader.readBlocks(slice);
                BlocksFileStats stats = blocks.getStats();
                boolean rleEncode = stats.getAvgRunLength() > RUN_LENGTH_AVERAGE_CUTOFF;
                boolean dicEncode = stats.getUniqueCount() < DICTIONARY_CARDINALITY_CUTOFF;

                BlocksFileEncoding encoding = defaultEncoding;
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