Package io.airlift.slice

Examples of io.airlift.slice.Slice

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    public Object getExpectedValue(int start, int length)
    {
        if (length == 0) {
            return null;
        }
        Slice max = null;
        for (int i = 0; i < length; i++) {
            Slice slice = Slices.wrappedBuffer(Ints.toByteArray(i));
            max = (max == null) ? slice : Ordering.natural().max(max, slice);
        }
        return max.toString(Charsets.UTF_8);
    }
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            }
            else if (javaType == double.class) {
                type.writeDouble(blockBuilder, (Double) value);
            }
            else if (javaType == Slice.class) {
                Slice slice = (Slice) value;
                type.writeSlice(blockBuilder, slice, 0, slice.length());
            }
            else {
                throw new UnsupportedOperationException("not yet implemented: " + javaType);
            }
        }
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        else if (parameterType == Type.DOUBLE) {
            double value = values.getDouble();
            return HASH.hashLong(Double.doubleToLongBits(value)).asLong();
        }
        else if (parameterType == Type.VARIABLE_BINARY) {
            Slice value = values.getSlice();
            return HASH.hashBytes(value.getBytes()).asLong();
        }
        else {
            throw new IllegalArgumentException("Expected parameter type to be FIXED_INT_64, DOUBLE, or VARIABLE_BINARY");
        }
    }
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                    long groupId = groupIdsBlock.getGroupId(position);

                    // todo do all of this with shifts and masks
                    long globalOffset = groupId * ENTRY_SIZE;
                    int sliceIndex = Ints.checkedCast(globalOffset / SLICE_SIZE);
                    Slice slice = slices.get(sliceIndex);
                    int sliceOffset = Ints.checkedCast(globalOffset - (sliceIndex * SLICE_SIZE));

                    long hash = hash(values, parameterType);

                    ESTIMATOR.update(hash, slice, sliceOffset + 1);
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                    long groupId = groupIdsBlock.getGroupId(position);

                    // todo do all of this with shifts and masks
                    long globalOffset = groupId * ENTRY_SIZE;
                    int sliceIndex = Ints.checkedCast(globalOffset / SLICE_SIZE);
                    Slice slice = slices.get(sliceIndex);
                    int sliceOffset = Ints.checkedCast(globalOffset - (sliceIndex * SLICE_SIZE));

                    Slice input = intermediates.getSlice();

                    ESTIMATOR.mergeInto(slice, sliceOffset + 1, input, 0);
                    setNotNull(slice, sliceOffset);
                }
            }
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        public void evaluateIntermediate(int groupId, BlockBuilder output)
        {
            // todo do all of this with shifts and masks
            long globalOffset = groupId * ENTRY_SIZE;
            int sliceIndex = Ints.checkedCast(globalOffset / SLICE_SIZE);
            Slice valueSlice = slices.get(sliceIndex);
            int valueOffset = Ints.checkedCast(globalOffset - (sliceIndex * SLICE_SIZE));

            if (isNull(valueSlice, valueOffset)) {
                output.appendNull();
            }
            else {
                Slice intermediate = valueSlice.slice(valueOffset + 1, ESTIMATOR.getSizeInBytes());
                output.append(intermediate); // TODO: add BlockBuilder.appendSlice(slice, offset, length) to avoid creating intermediate slice
            }
        }
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        public void evaluateFinal(int groupId, BlockBuilder output)
        {
            // todo do all of this with shifts and masks
            long globalOffset = groupId * ENTRY_SIZE;
            int sliceIndex = Ints.checkedCast(globalOffset / SLICE_SIZE);
            Slice valueSlice = slices.get(sliceIndex);
            int valueOffset = Ints.checkedCast(globalOffset - (sliceIndex * SLICE_SIZE));

            if (isNull(valueSlice, valueOffset)) {
                output.append(0);
            }
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            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                if (!intermediates.isNull()) {
                    notNull = true;

                    Slice input = intermediates.getSlice();
                    ESTIMATOR.mergeInto(slice, 0, input, 0);
                }
            }
        }
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    private static int serializedSize(List<? extends Type> types, Page expectedPage)
    {
        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        writePages(createTestingBlockEncodingManager(), sliceOutput, expectedPage);
        Slice slice = sliceOutput.slice();

        Iterator<Page> pageIterator = readPages(createTestingBlockEncodingManager(), slice.getInput());
        if (pageIterator.hasNext()) {
            assertPageEquals(types, pageIterator.next(), expectedPage);
        }
        else {
            assertEquals(expectedPage.getPositionCount(), 0);
        }
        assertFalse(pageIterator.hasNext());

        return slice.length();
    }
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                mask >>>= 1;
            }
            sliceOutput.appendByte(value);
        }

        Slice slice = fixedWidthBlock.getRawSlice();
        sliceOutput
                .appendInt(slice.length())
                .writeBytes(slice);
    }
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