-- BCF2 now determines whether it can safely write out raw genotype blocks, which is true in the case where the VCF header of the input is a complete, ordered subset of the output header. Added utilities to determine this and extensive unit tests (headerLinesAreOrderedConsistently)
-- Cleanup collapseStringList and exploreStringList for new unit tests of BCF2Utils. Fixed bug in edge case that never occurred in practice
-- VCFContigHeaderLine now provides its own key (VCFHeader.CONTIG_KEY) directly instead of requiring the user to provide it (and hoping its right)
-- More ways to access the data in VCFHeader
-- BCF2Writer uses a cache to avoid recomputing unnecessarily whether raw genotype blocks can be emitted directly into the output
-- Optimization of fullyDecodeAttributes -- attributes.size() is expensive and unnecessary. We just guess that on average we need ~10 elements for the attribute map
-- CombineVariants optimization -- filters are online HashSet but are sorted at the end by creating a TreeSet
-- makeCombinations is now makePermutations, and you can request to create the permutations with or without replacement
-- Previous version would count all alt alleles as present in a sample, even if only 1 were present, because of the way VariantEval subsetted VCs
-- Updated code for subsetting VCs by sample to be clearer about how it handles rederiving alleles
-- Update a few pieces of code to get previous correct behavior
-- Updated a few MD5s as now ref calls at sites in dbSNP are counted as having a comp sites, and therefore show up in known sites when Novelty strat is on (which I think is correct)
-- Walkers that used old subsetting function with true are now using clearer version that does rederive alleles by default
-- VariantFiltration now properly sets passFilters in VC
-- BCF2 writer now properly decodes lazy BCF genotype data that it uses. Improper use generated a horrible subtle bug but the good news is that the extra checks I put in (unnecessarily a few days ago) caught the bug!
Signed-off-by: Mark DePristo <depristo@broadinstitute.org>
-- Heng wants to use 0x0? to represent any missing type value, which in our implementation was invalid. Updated our codebase to support this construct. Heng said he'll update the BCF2 quick reference.
-- Enabled integration test reading Heng's ex2.bcf file
-- GATK now only warns in the case where the END info field isn't the same (or +1 due to padding) as the getEnd() function as determined by the GATK. Turns out there's a single record in the 1000G SV call set that doesn't have the right length
-- VariantContextTestProvider now tests that X = Y where X -> writing -> reading -> writing -> reading = Y for a variety of variant context inputs X
-- Added integration test reading 1000G SV chr1 calls (from Chris)
-- getMetaData now split into getMetaDataInSortedOrder() [old functionality] and getMetaDataInOriginalOrder() [according to the header order]. Important as BCF uses the order of elements in the header in the offsets to keys, and we were automatically sorting the BCF2 header which is out of order in samtools and the whole system was going crazy
-- Updating GATK code to use the appropriate header function (this is why so many files have changed)
-- BCF2 code was busted in not differentiating PASS from . from FILTER in VC (tests coming that will actually stress this)
-- Bugfix for adding contig lines to BCF2 header dictionary
-- VCFHeader metaData no longer sorted internally. The system now maintains the data in header order, and only sorts output as requested in API
-- VCFWriter and BCF2Writer now explictly sort their header lines
-- Don't allow filters to be added that are PASS in the contract
-- refactored allele clipping / padding code into VCFAlleleClipping class, and added much needed docs and TODOs for methods dev guys
-- Added real unit tests for (some) clipping operations in VCFUtilsUnitTest
-- Previously VCF header lines of count type G assumed that the sample would be diploid.
-- Generalized the code to take a VariantContext and return the right result for G count types by calling into the correct numGenotypes in GenotypeLikelihoods class
-- renamed calcNumGenotypes to numGenotypes, which uses a static cache in the class
-- calcNumGenotypes is private, and is used to build the static cache or to compute on the fly for uncached No. allele / ploidy combinations
-- VariantContext calls into getMaxPloidy in GenotypesContext, which caches the max ploidy among samples
-- Added extensive unit tests that compare A and G type values in genotypes
-- allowMissingVCFHeaders is now part of -U argument. If you want specifically unsafe VCF processing you need -U LENIENT_VCF_PROCESSING. Updated lots of files to use this
-- LENIENT_VCF_PROCESSING disables on the fly VCF header cleanup. This is now implemented via a member variable, not a class variable, which I believe was changing the GATK behavior during integration tests, causing some files to fail that pass when run as a single test because the header reading behavior was changing depending on previous failures.
-- Added MLEAC and MLEAF format lines to PoolCallerWalker
-- VariantFiltrationWalker now throws an error when JEXL variables cannot be found (XXX < 0.5) but passes through (albeit with a disgusting warning) when a variable is found but its value is a bad type (AF < 0.5) where AF == [0.04,0.00] at multi-allelic variation
-- Allow values to pass assertEquals in VariantContextTestProvider when one file contains X=[null, null] and the other has X missing
-- MLAC and MLAF in PoolCaller now use standard MLE_AC and MLE_AF
-- VCFDiffableReader disables onTheFly fixing of VCF header fields so comparisons are easier when headers are changing
-- Flag fields with FLAG_KEY=0 are parsed as though FLAG_KEY were entirely absent in AbstractVCFCodec to fix bug where FLAG_KEY=0 was being translated into FLAG_KEY in output VCF, making a false flag value a true one
-- Fix the GT field value in VariantContextTestProviders so it isn't fixed 1000s of times during testing
-- Keys whose value is null are put into the VariantContext info attributes now
-- Created public static UnifiedGenotyper.getHeaderInfo that loads UG standard header lines, and use this in tools like PoolCaller
-- Created VCFStandardHeaderLines class that keeps standard header lines in the GATK in a single place. Provides convenient methods to add these to a header, as well as functionality to repair standard lines in incoming VCF headers
-- VCF parsers now automatically repair standard VCF header lines when reading the header
-- Updating integration tests to reflect header changes
-- Created private and public testdata directories (public/testdata and private/testdata). Updated tests to use test
-- SelectHeaders now always updates the header to include the contig lines
-- SelectVariants add UG header lines when in regenotype mode
-- Renamed PHRED_GENOTYPE_LIKELIHOODS_KEY to GENOTYPE_PL_KEY
-- Bugfix in BCF2 to handle lists of null elements (can happen in genotype field values from VCFs)
-- Throw error when VCF has unbounded non-flag values that don't have = value bindings
-- By default we no longer allow writing of BCF2 files without contig lines in the header
-- Moved GENOTYPE_KEY vcf header line to VCFConstants. This general migration and cleanup is on Eric's plate now
-- Updated HC to initialize the annotation engine in an order that allows it to write a proper VCF header. Still doesn't work...
-- Updating integration test files. Moved many more files into public/testdata. Updated their headers to all work correctly with new strict VCF header checking.
-- Bugfix for TandemRepeatAnnotation that must be unbounded not A count type as it provides info for the REF as well as each alt
-- No longer add FALSE values to flag values in VCs in VariantAnnotatorEngine. DB = 0 is never seen in the output VCFs now
-- Fixed bug in VCFDiffableReader that didn't differeniate between "." and "PASS" VC filter status
-- Unconditionally add lowQual Filter to UG output VCF files as this is in some cases (EMIT_ALL_SITES) used when the previous check said it wouldn't be
-- VariantsToVCF now properly writes out the GT FORMAT field
-- BCF2 codec explodes when reading symbolic alleles as I literally cannot figure out how to use the allele clipping code. Eric said he and Ami will clean up this whole piece of instructure
-- Fixed bug in BCF2Codec that wasn't setting the phase field correctly. UnitTested now
-- PASS string now added at the end of the BCF2 dictionary after discussion with Heng
-- Fixed bug where I was writing out all field values as BigEndian. Now everything is LittleEndian.
-- VCFHeader detects the case where a count field has size < 0 (some of our files have count = -1) and throws a UserException
-- Cleaned up unused code
-- Fixed bug in BCF2 string encoder that wasn't handling the case of an empty list of strings for encoding
-- Fixed bug where all samples are no called in a VC, in which case we (like the VCFwriter) write out no called diploid genotypes for all samples
-- We always write the number of genotype samples into the BCF2 nSamples header. How we can have a variable number of samples per record isn't clear to me, as we don't have a map from missing samples to header names...
-- Removed old filtersWereAppliedToContext code in VCF as properly handle unfiltered, filtered, and PASS records internally
-- Fastpath function getDisplayBases() in allele that just gives you the raw bytes[] you'd see for an Allele
-- Genotype fields no longer differentiate between unfiltered, filtered, and PASS values. Genotype objects are all PASS implicitly, or explicitly filtered. We only write out the FT values if at least one sample is filtered. Removed interface functions and cleaned up code
-- Refactored padAllele code from createVariantContextWithPaddedAlleles into the function padAllele so that it actually works. In general, **** NEVER COPY CODE **** if you need to share funcitonality make a function, that's why there were invented!
-- Increased the default number of records to read for DiffObjects to 1M
-- The GATK VCFWriter now enforces by default that all INFO, FILTER, and FORMAT fields be properly defined in the header. This helps avoid some of the low-level errors I saw in SelectVariants. This behavior can be disable in the engine with the --allowMissingVCFHeaders argument
-- Fixed broken annotations in TandemRepeat, which were overwriting AD instead of defining RPA
-- Optimizations to VariantEval, removing some obvious low-hanging fruit all in the subsetting of variants by sample
-- SelectVariants header fixes -- Was defining DP for the info field as a FORMAT field, as for AC, AF, and AN original
-- Performance optimizations in BCF2 codec and writer
-- using arrays not lists for intermediate data structures
-- Create once and reuse an array of GenotypeBuilders for the codec, avoiding reallocating this data structure over and over
-- VCFHeader (which needs a complete rewrite, FYI Eric)
-- Warn and fix on the way flag values with counts > 0
-- GenotypeSampleNames are now stored as a List as they are ordered, and the set iteration was slow. Duplicates are detected once at header creation.
-- Explicitly track FILTER fields for efficient lookup in their own hashmap
-- Automatically add PL field when we see a GL field and no PL field
-- Added get and has methods for INFO, FILTER, and FORMAT fields
-- No longer add AC and AF values to the INFO field when there's no ALT allele
-- Memory efficient comparison of VCF and BCF files for shadow BCF testing. Now there's no (memory) constraint on the size of the files we can compare
-- Because of VCF's limited floating point resolution we can only use 1 sig digit for comparing doubles between BCF and VCF
-- BCFFieldEncoder and writers divide up the task of formatting values (atomic or vector, ints, strings, floats, etc) from the task of writing these out at the sites or genotypes level.
-- Allows us to create efficient encoders for specific combinations of header fields, such as int[] encoded values with exactly 3 values
-- Currently only used for INFO fields, but subsequent commit will include optimized genotype field encoder
-- Allowed us to naturally support encoding of lists of strings
-- Bugfixes in VariantContextUtils introduced in genotype -> genotypebuilder conversion
-- Fixes for integration test failures
-- Enabling contig updates
-- WalkerTest now prints out relative paths where possible to make cut/paste/run easier
-- As values in VCs are becoming their native Java types the VCFWriter needs to own proper float formating.
-- Created a smart float formatter in VCFWriter, with unit tests
-- Removed makePrecisionFormatStringFromDenominatorValue and its uses
-- Fix broken contracted
-- Refactored some code from the encoder to utils in BCF2
-- HaplotypeCaller's GenotypingEngine was using old version of subset to context. Replaced with a faster call that I think is correct. Ryan, please confirm.
-- FastGenotypes are the default in the engine. Use --useSlowGenotypes engine argument to return to old representation
-- Cleanup of BCF2Codec. Good error handling. Added contracts and docs.
-- Added a few more contacts and docs to BCF2Decoder
-- Optimized encodePrimitive in BCF2Encoder
-- Removed genotype filter field exceptions
-- Docs and cleanup of BCF2GenotypeFieldDecoders
-- Deleted unused BCF2TestWalker
-- Docs and cleanup of BCF2Types
-- Faster version of decodeInts in VCFCodec
-- BCF2Writer
-- Support for writing a sites only file
-- Lots of TODOs for future optimizations
-- Removed lack of filter field support
-- No longer uses the alleleMap from VCFWriter, which was a Allele -> String, now uses Allele -> Integer which is faster and more natural
-- Lots of docs and contracts
-- Docs for GenotypeBuilder. More filter creation routines (unfiltered, for example)
-- More extensive tests in VariantContextTestProfiler, including variable length strings in genotypes and genotype filters. Better genotype comparisons
-- Builder now provides a depreciated log10pError function to make a new GQ value
-- Genotype is an abstract class, with most of the associated functions implemented here and not in the derived Fast and Slow versions
-- Lots of contracts
-- Bugfixes throughout
-- Created a new Genotype interface with a more limited set of operations
-- Old genotype object is now SlowGenotype. New genotype object is FastGenotype. They can be used interchangable
-- There's no way to create Genotypes directly any longer. You have to use GenotypeBuilder just like VariantContextBuilder
-- Modified lots and lots of code to use GenotypeBuilder
-- Added a temporary hidden argument to engine to use FastGenotype by default. Current default is SlowGenotype
-- Lots of bug fixes to BCF2 codec and encoder.
-- Feature additions
-- Now properly handles BCF2 -> BCF2 without decoding or encoding from scratch the BCF2 genotype bytes
-- Cleaned up semantics of subContextFromSamples. There's one function that either rederives or not the alleles from the subsetted genotypes
-- MASSIVE BUGFIX in SelectVariants. The code has been decoding genotypes always, even if you were not subsetting down samples. Fixed!
-- VCFWriter / codec now passes the same rigorous UnitTest as the BCF2 writer / codec. As part of this we now can only test doubles for equivalence in VCFs to 1e-2 (not exactly impressive)
-- This version of BCF should actually work properly for most files, assuming headers are properly defined.
-- Lots of bug fixes to BCF2 codec
-- Genotype getPhredScaledQual is now an int, returning -1 if there's no QUAL. NOTE THIS SEMANTICS change
-- Equals() method for GenotypeLikelihoods, using PLs.
-- VCFCodec now longer adds empty bindings to missing input field values. NOTE THIS CHANGE
-- VCs can be marked as fully decoded, so that when fullyDecode() is called it returns itself, instead of doing the decoding work. The BCF2 codec now makes VCs marked as fully decoded
-- stringToBytes returns empty list for null or "" string in BCF2Encoder
-- Proper handling of genotype ordering in BCF2 reader / writer
-- Removed the crazy slow noDups and sameSamples tests that were slowing down unit and integration tests totally unnecessarily
-- Many failing MD5s now due to double -> int change in GQ, will update later
-- Cut down the size of a few large files in public/testdata that were only used in part
-- Refactor vcf Filename => shadow BCF filename to BCF2Utils. Fix bug in WalkerTest due to the way this was handled previously
--handle entirely missing GT in a sample in decodeGenotypeAlleles
--Create MAX_ALLELES_IN_GENOTYPES constant in BCF2Utils, and extracted its use inline from the code
-- Generalized genotype writing code to handle ploidy != 2 and variable ploidy among samples
-- Remove special case inline treatment of case where all samples have no GT field values, and moved this into calcVCFGenotypeKeys
-- Removed restriction on getPloidy requiring ploidy > 1. It's logically find to return 0 for a no called sample
-- getMaxPloidy() in VC that does what it says
-- Support for padding / depadding of generic genotype fields
-- fixed final bugs with PL encoding / decoding
-- Ready for testing by other members of the group
-- Current performance numbers aren't so great, but they will improve in the next phase of BCF2 optimizations
-- Fixed a nasty bug in the filter field
-- Not that some (many?) GATK tools won't work with BCF because they internally assume values are Strings not their true types
Read 1500 genotypes file in VCF -> VCF : 11 seconds
Read 1500 genotypes file in VCF -> BCF : 9.5 seconds
VariantEval 1500 genotypes file in VCF : 3 seconds
VariantEval 1500 genotypes file in BCF : 3 seconds
-- Trivial import changes in some walkers
-- SelectVariants has a new hidden mode to fully decode a VCF file
-- DepthPerAlleleBySample (AD) changed to have not UNBOUNDED by A type, which is actually the right type
-- GenotypeLikelihoods now implements List<Double> for convenience. The PL duality here is going to be removed in a subsequent commit
-- BugFixes in BCF2Writer. Proper handling of padding. Bugfix for nFields for a field
-- padAllele function in VariantContextUtils
-- Much better tests for VariantContextTestProvider, including loading parts of dbSNP 135 and the Phase II 1000G call set with genotypes to test encoding / decoding of fields.
-- List<String> is converted inside of the codec to a collapsed string, and exploded in the decoder.
-- Unified the type conversion code in BCFWriter to simply the mapping from VCF type => BCF type and special value recoding
-- Code cleanup and renaming
Eric Banks
Mark DePristo
Joel Thibault