Examples of io.airlift.slice.DynamicSliceOutput

io.airlift.slice.DynamicSliceOutput

            TaskBuffer taskBuffer = taskBuffers.getUnchecked(taskId);
            Page page = taskBuffer.getPage(pageToken);
            if (page != null) {
                headers.put(CONTENT_TYPE, PRESTO_PAGES);
                headers.put(PRESTO_PAGE_NEXT_TOKEN, String.valueOf(pageToken + 1));
                DynamicSliceOutput output = new DynamicSliceOutput(256);
                PagesSerde.writePages(createTestingBlockEncodingManager(), output, page);
                return new TestingResponse(HttpStatus.OK, headers.build(), output.slice().getInput());
            }
            else if (taskBuffer.isFinished()) {
                headers.put(PRESTO_PAGE_NEXT_TOKEN, String.valueOf(pageToken));
                return new TestingResponse(HttpStatus.GONE, headers.build(), new byte[0]);
            }

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        // update sequence id
        long nextToken = token + responsePages.size();
        tokenByLocation.put(location, nextToken);


        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(64);
        PagesSerde.writePages(createTestingBlockEncodingManager(), sliceOutput, responsePages);
        byte[] bytes = sliceOutput.slice().getBytes();
        return new TestingResponse(HttpStatus.OK,
                ImmutableListMultimap.of(
                        CONTENT_TYPE, PRESTO_PAGES,
                        PRESTO_PAGE_TOKEN, String.valueOf(token),
                        PRESTO_PAGE_NEXT_TOKEN, String.valueOf(nextToken)

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            DigestAndPercentile currentValue = digests.get((long) groupId);
            if (currentValue == null || currentValue.getDigest().getCount() == 0.0) {
                output.appendNull();
            }
            else {
                DynamicSliceOutput sliceOutput = new DynamicSliceOutput(currentValue.getDigest().estimatedSerializedSizeInBytes());
                currentValue.getDigest().serialize(sliceOutput);
                sliceOutput.appendDouble(currentValue.getPercentile());


                output.append(sliceOutput.slice());
            }
        }

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            if (digest.getCount() == 0.0) {
                out.appendNull();
            }
            else {
                DynamicSliceOutput sliceOutput = new DynamicSliceOutput(digest.estimatedSerializedSizeInBytes() + SIZE_OF_DOUBLE);
                // write digest
                digest.serialize(sliceOutput);
                // write percentile
                sliceOutput.appendDouble(percentile);


                Slice slice = sliceOutput.slice();
                out.append(slice);
            }


            return out.build();
        }

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            for (int i = 0; i < accumulators.size(); i++) {
                blocks[i] = accumulators.get(i).evaluateIntermediate();
                sizeEstimate += blocks[i].getDataSize().toBytes();
            }


            SliceOutput output = new DynamicSliceOutput(sizeEstimate);
            PagesSerde.writePages(output, new Page(blocks));
            BlockBuilder builder = new BlockBuilder(SINGLE_VARBINARY);
            builder.append(output.slice());
            return builder.build();
        }

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                accumulators.get(i).evaluateIntermediate(groupId, builder);
                blocks[i] = builder.build();
                sizeEstimate += blocks[i].getDataSize().toBytes();
            }


            SliceOutput sliceOutput = new DynamicSliceOutput(sizeEstimate);
            PagesSerde.writePages(sliceOutput, new Page(blocks));
            output.append(sliceOutput.slice());
        }

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            DigestAndPercentile currentValue = digests.get((long) groupId);
            if (currentValue == null || currentValue.getDigest().getCount() == 0.0) {
                output.appendNull();
            }
            else {
                DynamicSliceOutput sliceOutput = new DynamicSliceOutput(currentValue.getDigest().estimatedSerializedSizeInBytes() + SIZE_OF_DOUBLE);
                // write digest
                currentValue.getDigest().serialize(sliceOutput);
                // write percentile
                sliceOutput.appendDouble(currentValue.getPercentile());


                Slice slice = sliceOutput.slice();
                output.append(slice);
            }
        }

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            if (digest.getCount() == 0.0) {
                out.appendNull();
            }
            else {
                DynamicSliceOutput sliceOutput = new DynamicSliceOutput(digest.estimatedSerializedSizeInBytes() + SIZE_OF_DOUBLE);
                // write digest
                digest.serialize(sliceOutput);
                // write percentile
                sliceOutput.appendDouble(percentile);


                Slice slice = sliceOutput.slice();
                out.append(slice);
            }


            return out.build();
        }

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        return new Builder(sliceOutput);
    }


    public Builder builder()
    {
        return new Builder(new DynamicSliceOutput(0));
    }

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        VARCHAR.writeString(expectedBlockBuilder, "dave");
        Block expectedBlock = expectedBlockBuilder.build();


        Page expectedPage = new Page(expectedBlock, expectedBlock, expectedBlock);


        DynamicSliceOutput sliceOutput = new DynamicSliceOutput(1024);
        writePages(createTestingBlockEncodingManager(), sliceOutput, expectedPage, expectedPage, expectedPage);


        List<Type> types = ImmutableList.<Type>of(VARCHAR, VARCHAR, VARCHAR);
        Iterator<Page> pageIterator = readPages(createTestingBlockEncodingManager(), sliceOutput.slice().getInput());
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertPageEquals(types, pageIterator.next(), expectedPage);
        assertFalse(pageIterator.hasNext());
    }

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