1 files changed, 46 insertions, 0 deletions
diff --git a/crashboxd/src/main/scala/io/crashbox/ci/yaml/SimpleReaders.scala b/crashboxd/src/main/scala/io/crashbox/ci/yaml/SimpleReaders.scala
new file mode 100644
index 0000000..df30a33
--- /dev/null
+++ b/crashboxd/src/main/scala/io/crashbox/ci/yaml/SimpleReaders.scala
@@ -0,0 +1,46 @@
+package io.crashbox.ci
+package yaml
+
+import scala.util.Try
+
+trait SimpleReaders {
+
+  class YamlStringReader[A](expected: String)(extract: String => Option[A])
+      extends YamlReader[A] {
+    def read(yml: YamlValue) = yml match {
+      case YamlString(value) =>
+        extract(value) match {
+          case Some(a) => a
+          case None =>
+            throw new YamlFormatException(
+              s"""expected $expected, but found string type "$value"""")
+        }
+      case _ => formatError(yml, expected)
+    }
+  }
+
+  implicit object valueReader extends YamlReader[YamlValue] {
+    def read(yaml: YamlValue) = yaml
+  }
+
+  implicit object stringReader
+      extends YamlStringReader[String]("string")(s => Some(s))
+
+  implicit object byteReader
+      extends YamlStringReader[Byte]("byte")(s => Try { s.toByte }.toOption)
+  implicit object shortReader
+      extends YamlStringReader[Short]("short")(s => Try { s.toShort }.toOption)
+  implicit object intReader
+      extends YamlStringReader[Int]("integer")(s => Try { s.toInt }.toOption)
+  implicit object longReader
+      extends YamlStringReader[Long]("long")(s => Try { s.toLong }.toOption)
+  implicit object floatReader
+      extends YamlStringReader[Float]("float")(s => Try { s.toFloat }.toOption)
+  implicit object doubleReader
+      extends YamlStringReader[Double]("double")(s =>
+        Try { s.toDouble }.toOption)
+  implicit object booleanReader
+      extends YamlStringReader[Boolean]("boolean")(s =>
+        Try { s.toBoolean }.toOption)
+
+}