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sbt.version = 1.10.4 | ||
sbt.version = 1.10.5 |
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sbt.version=1.10.4 | ||
sbt.version=1.10.5 |
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@@ -94,3 +94,7 @@ googlecloud { | |
"153601": 0.045 | ||
} | ||
} | ||
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firecloud { | ||
max-filematching-bucket-files = 25000 | ||
} |
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124 changes: 124 additions & 0 deletions
124
src/main/scala/org/broadinstitute/dsde/firecloud/filematch/FileMatcher.scala
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package org.broadinstitute.dsde.firecloud.filematch | ||
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import com.typesafe.scalalogging.LazyLogging | ||
import org.broadinstitute.dsde.firecloud.filematch.result.{FailedMatchResult, FileMatchResult, SuccessfulMatchResult} | ||
import org.broadinstitute.dsde.firecloud.filematch.strategy.{FileRecognitionStrategy, IlluminaPairedEndStrategy} | ||
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import java.nio.file.Path | ||
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/** | ||
* Given a list of files, pair those files based on their naming conventions. | ||
* At the time of writing, this involves recognizing Illumina single end and paired end read patterns | ||
* such as those defined at https://support.illumina.com/help/BaseSpace_Sequence_Hub_OLH_009008_2/Source/Informatics/BS/NamingConvention_FASTQ-files-swBS.htm | ||
* | ||
* In the future, we may support additional naming conventions | ||
*/ | ||
class FileMatcher extends LazyLogging { | ||
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// the list of recognition strategies to use | ||
private val matchingStrategies: List[FileRecognitionStrategy] = List(new IlluminaPairedEndStrategy()) | ||
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/** | ||
* Given a list of files, pair up those files according to our known recognition strategies. | ||
* @param pathList the list of files to inspect | ||
* @return pairing results | ||
*/ | ||
def pairPaths(pathList: List[Path]): List[FileMatchResult] = | ||
performPairing(pathList) | ||
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/** | ||
* Given a list of files, pair up those files according to our known recognition strategies. | ||
* @param fileList the list of files to inspect, as Strings | ||
* @return pairing results | ||
*/ | ||
def pairFiles(fileList: List[String]): List[FileMatchResult] = { | ||
// convert fileList to pathList | ||
val pathList = fileList.map(file => new java.io.File(file).toPath) | ||
pairPaths(pathList) | ||
} | ||
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/** | ||
* Implementation for file pairing. This executes in three steps: | ||
* 1. Use our known file recognition strategies to identify all "read 1" files in the file list | ||
* 2. Search for all "read 2" files in the file list which match the previously-identified "read 1"s | ||
* 3. Handle the remaining files which are not recognized as either "read 1" or "read 2" | ||
* | ||
* @param pathList the list of files to inspect | ||
* @return pairing results | ||
*/ | ||
private def performPairing(pathList: List[Path]): List[FileMatchResult] = { | ||
// find every path in the incoming pathList that is recognized by one of our known patterns | ||
val desiredPairings: List[SuccessfulMatchResult] = findFirstFiles(pathList) | ||
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// remove the recognized firstFiles from the outstanding pathList | ||
val remainingPaths: List[Path] = pathList diff desiredPairings.map(_.firstFile) | ||
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// process the recognized "read 1" files, and look for their desired pairings in the outstanding pathList. | ||
// this will result in either SuccessfulMatchResult when the desired pairing is found, or PartialMatchResult | ||
// when the desired pairing is not found | ||
val pairingResults: List[FileMatchResult] = findSecondFiles(remainingPaths, desiredPairings) | ||
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// remove the recognized "read 2" files from the outstanding pathList | ||
val unrecognizedPaths: List[Path] = remainingPaths diff pairingResults.collect { case s: SuccessfulMatchResult => | ||
s.secondFile | ||
} | ||
// translate the unrecognized paths into a FileMatchResult | ||
val unrecognizedResults: List[FailedMatchResult] = unrecognizedPaths.map(path => FailedMatchResult(path)) | ||
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// return results, sorted by firstFile | ||
(pairingResults ++ unrecognizedResults).sortBy(r => r.firstFile) | ||
} | ||
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/** | ||
* find every path in the incoming pathList that is recognized as a "read 1" by our known patterns | ||
* @param pathList the list of files to inspect | ||
* @return pairing results | ||
*/ | ||
private def findFirstFiles(pathList: List[Path]): List[SuccessfulMatchResult] = | ||
pathList.collect { path => | ||
tryPairingStrategies(path) match { | ||
case success: SuccessfulMatchResult => success | ||
} | ||
} | ||
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/** | ||
* find every path in the incoming pathList that is recognized as a "read 2" by our known patterns | ||
* | ||
* @param pathList the list of files to inspect | ||
* @param desiredPairings the "read 2" files to look for in the pathList | ||
* @return pairing results | ||
*/ | ||
private def findSecondFiles(pathList: List[Path], | ||
desiredPairings: List[SuccessfulMatchResult] | ||
): List[FileMatchResult] = | ||
desiredPairings.map { desiredPairing => | ||
// search for the desired pairing's secondFile in the list of actual files | ||
pathList.find(p => p.equals(desiredPairing.secondFile)) match { | ||
case Some(_) => desiredPairing | ||
case None => desiredPairing.toPartial | ||
} | ||
} | ||
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/** | ||
* Attempt all the configured file recognition strategies against the supplied file. | ||
* | ||
* @param file the file to try to recognize | ||
* @return SuccessfulMatchResult if the file is recognized; FailedMatchResult if not | ||
*/ | ||
private def tryPairingStrategies(file: Path): FileMatchResult = { | ||
// does the current file hit on any of our file-matching patterns? | ||
// Iterate over the matching strategies and return the first successful match result. | ||
val strategyHit = matchingStrategies.collectFirst(strategy => | ||
strategy.matchFirstFile(file) match { | ||
case success: SuccessfulMatchResult => success | ||
} | ||
) | ||
strategyHit match { | ||
// The current file is recognized by one of our recognition strategies | ||
case Some(desiredResult: SuccessfulMatchResult) => desiredResult | ||
// the current file is not recognized | ||
case _ => FailedMatchResult(file) | ||
} | ||
} | ||
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} |
22 changes: 22 additions & 0 deletions
22
src/main/scala/org/broadinstitute/dsde/firecloud/filematch/FileMatchingOptions.scala
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package org.broadinstitute.dsde.firecloud.filematch | ||
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import spray.json.DefaultJsonProtocol.jsonFormat4 | ||
import spray.json.RootJsonFormat | ||
import spray.json.DefaultJsonProtocol._ | ||
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/** | ||
* Request payload, specified by end users, to control file-matching functionality | ||
* @param prefix bucket prefix in which to list files | ||
* @param read1Name name for the "read1" column | ||
* @param read2Name name for the "read2" column | ||
* @param recursive should bucket-listing be recursive? | ||
*/ | ||
case class FileMatchingOptions(prefix: String, | ||
read1Name: Option[String] = None, | ||
read2Name: Option[String] = None, | ||
recursive: Option[Boolean] = None | ||
) | ||
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object FileMatchingOptionsFormat { | ||
implicit val fileMatchingOptionsFormat: RootJsonFormat[FileMatchingOptions] = jsonFormat4(FileMatchingOptions) | ||
} |
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