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author | vlad <vlad@driver.xyz> | 2018-01-25 14:12:31 -0800 |
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committer | vlad <vlad@driver.xyz> | 2018-01-25 14:12:31 -0800 |
commit | a0877d81ca2844d75dc361b5ce7c99afacd6e25f (patch) | |
tree | 8fe49f45cbcddbbb9a3d167099abe7aa2625e56b /src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala | |
parent | 46a22e9ab324a0068a85952cdc809800f360f445 (diff) | |
download | rest-query-a0877d81ca2844d75dc361b5ce7c99afacd6e25f.tar.gz rest-query-a0877d81ca2844d75dc361b5ce7c99afacd6e25f.tar.bz2 rest-query-a0877d81ca2844d75dc361b5ce7c99afacd6e25f.zip |
Extracting query library
Diffstat (limited to 'src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala')
-rw-r--r-- | src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala b/src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala new file mode 100644 index 0000000..2b4547b --- /dev/null +++ b/src/main/scala/xyz/driver/restquery/rest/parsers/PaginationParser.scala @@ -0,0 +1,23 @@ +package xyz.driver.restquery.http.parsers + +import xyz.driver.restquery.domain.Pagination + +import scala.util._ + +object PaginationParser { + + def parse(query: Seq[(String, String)]): Try[Pagination] = { + val IntString = """(\d+)""".r + def validate(field: String, default: Int) = query.collectFirst { case (`field`, size) => size } match { + case Some(IntString(x)) if x.toInt > 0 => x.toInt + case Some(IntString(x)) => throw new ParseQueryArgException((field, s"must greater than zero (found $x)")) + case Some(str) => throw new ParseQueryArgException((field, s"must be an integer (found $str)")) + case None => default + } + + Try { + Pagination(validate("pageSize", Pagination.Default.pageSize), + validate("pageNumber", Pagination.Default.pageNumber)) + } + } +} |