Merge pull request #305 from ysusuk/master

#88: Add JsonPath predicate

build.sbt

@@ -18,16 +18,17 @@ val scalaXmlVersion = "1.0.6"
 val scalazVersion = "7.2.13"
 val scodecVersion = "1.10.3"
 val pureconfigVersion = "0.7.2"
+val jsonpathVersion = "2.3.0"
 
 // needed for tests with Scala 2.10
 val macroParadise = compilerPlugin(
  "org.scalamacros" % "paradise" % macroParadiseVersion % Test cross CrossVersion.patch)
 
 val allSubprojects =
- Seq("cats", "core", "eval", "scalacheck", "scalaz", "scodec", "pureconfig")
+ Seq("cats", "core", "eval", "scalacheck", "scalaz", "scodec", "pureconfig", "jsonpath")
 val allSubprojectsJVM = allSubprojects.map(_ + "JVM")
 val allSubprojectsJS = {
- val jvmOnlySubprojects = Seq("pureconfig")
+ val jvmOnlySubprojects = Seq("pureconfig", "jsonpath")
  (allSubprojects diff jvmOnlySubprojects).map(_ + "JS")
 }
 
@@ -48,7 +49,8 @@ lazy val root = project
  scalazJS,
  scodecJVM,
  scodecJS,
- pureconfigJVM)
+ pureconfigJVM,
+ jsonpathJVM)
  .settings(commonSettings)
  .settings(noPublishSettings)
  .settings(releaseSettings)
@@ -179,6 +181,17 @@ lazy val pureconfig = crossProject(JSPlatform, JVMPlatform)
 
 lazy val pureconfigJVM = pureconfig.jvm
 
+lazy val jsonpath = crossProject(JSPlatform, JVMPlatform)
+ .configureCross(moduleCrossConfig("jsonpath"))
+ .dependsOn(core % "compile->compile;test->test")
+ .settings(
+ libraryDependencies ++= Seq(
+ "com.jayway.jsonpath" % "json-path" % jsonpathVersion,
+ macroParadise
+ )
+ )
+
+lazy val jsonpathJVM = jsonpath.jvm
 /// settings
 
 lazy val commonSettings = Def.settings(

latestVersion.sbt

@@ -5,4 +5,5 @@ latestVersionInSeries in ThisBuild := Some("0.8.2")
 unreleasedModules in ThisBuild := Set(
  // Example:
  // "refined-eval"
+ "refined-jsonpath"
 )

modules/jsonpath/jvm/src/main/scala/eu/timepit/refined/jsonpath/string.scala

@@ -0,0 +1,23 @@
+package eu.timepit.refined
+package jsonpath
+
+import eu.timepit.refined.api.Validate
+
+object string extends StringValidate {
+
+ /** Predicate that checks if a `String` is a valid JSON path. */
+ final case class JSONPath()
+}
+
+private[refined] trait StringValidate {
+ import string._
+
+ implicit def jsonPathValidate: Validate.Plain[String, JSONPath] = {
+ import com.jayway.jsonpath.internal.path.PathCompiler.compile
+
+ def compileWithoutPredicates(str: String) = compile(str)
+
+ Validate
+ .fromPartial(compileWithoutPredicates, "JSONPath", JSONPath())
+ }
+}

modules/jsonpath/jvm/src/test/scala/eu/timepit/refined/jsonpath/StringValidateSpec.scala

@@ -0,0 +1,23 @@
+package eu.timepit.refined
+package jsonpath
+
+import eu.timepit.refined.TestUtils._
+import eu.timepit.refined.jsonpath.string._
+import org.scalacheck.Prop._
+import org.scalacheck.Properties
+
+class StringValidateSpec extends Properties("JSONPathStringValidate") {
+
+ property("JSONPath is valid") = secure {
+ isValid[JSONPath]("$") && isValid[JSONPath]("@")
+ }
+
+ property("Illegal character at position 1 expected '.' or '[") = secure {
+ showResult[JSONPath]("$X") ?= "JSONPath predicate failed: Illegal character at position 1 expected '.' or '["
+ }
+
+ property("Path must not end with a '.' or '..'") = secure {
+ showResult[JSONPath]("$.") ?= "JSONPath predicate failed: Path must not end with a '.' or '..'"
+ }
+
+}