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Add language detection column to webpages. #403

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Jan 12, 2020
Merged

Add language detection column to webpages. #403

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9 changes: 6 additions & 3 deletions src/main/scala/io/archivesunleashed/package.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ import io.archivesunleashed.df.{DetectLanguageDF, DetectMimeTypeTikaDF, ExtractD

import io.archivesunleashed.matchbox.{DetectLanguageRDD, DetectMimeTypeTika, ExtractDateRDD,
ExtractDomainRDD, ExtractImageDetails, ExtractImageLinksRDD,
ExtractLinksRDD, GetExtensionMimeRDD, RemoveHTMLRDD}
ExtractLinksRDD, GetExtensionMimeRDD, RemoveHTMLRDD, RemoveHTTPHeaderRDD}
import io.archivesunleashed.matchbox.ExtractDateRDD.DateComponent
import io.archivesunleashed.matchbox.ExtractDateRDD.DateComponent.DateComponent
import java.net.URI
Expand Down Expand Up @@ -340,13 +340,16 @@ package object archivesunleashed {
def webpages(): DataFrame = {
val records = rdd.keepValidPages()
.map(r => Row(r.getCrawlDate, r.getUrl, r.getMimeType,
DetectMimeTypeTika(r.getBinaryBytes), r.getContentString))
DetectMimeTypeTika(r.getBinaryBytes),
DetectLanguageRDD(RemoveHTMLRDD(RemoveHTTPHeaderRDD(r.getContentString))),
r.getContentString))

val schema = new StructType()
.add(StructField("crawl_date", StringType, true))
.add(StructField("url", StringType, true))
.add(StructField("mime_type_web_server", StringType, true))
.add(StructField("mime_type_tika", StringType, true))
.add(StructField("language", StringType, true))
.add(StructField("content", StringType, true))

val sqlContext = SparkSession.builder()
Expand Down Expand Up @@ -899,4 +902,4 @@ package object archivesunleashed {
rdd.filter(r => !lang.contains(DetectLanguageRDD(RemoveHTMLRDD(r.getContentString))))
}
}
}
}