feat: move and label all exceptions (#101)

* feat: wrap all exceptions

* feat: move and label all exceptions

* test: add more unit tests for exceptions

Author: smyrick

example/src/main/kotlin/com.expedia.graphql.sample/directives/CakeOnlyDirectiveWiring.kt

@@ -9,6 +9,7 @@ class CakeOnlyDirectiveWiring : DirectiveWiring {
     override fun isApplicable(environment: SchemaDirectiveWiringEnvironment<*>): Boolean =
             environment.directive.name == getDirectiveName(CakeOnly::class)
 
+    @Throws(RuntimeException::class)
     override fun onField(wiringEnv: SchemaDirectiveWiringEnvironment<GraphQLFieldDefinition>): GraphQLFieldDefinition {
         val field = wiringEnv.element
         val originalDataFetcher: DataFetcher<Any> = field.dataFetcher
@@ -21,4 +22,4 @@ class CakeOnlyDirectiveWiring : DirectiveWiring {
         }
         return field.transform { it.dataFetcher(cakeOnlyFetcher) }
     }
-}
+}

example/src/main/kotlin/com.expedia.graphql.sample/query/NestedQueries.kt

@@ -39,6 +39,7 @@ class AnimalDetailsDataFetcher : DataFetcher<NestedAnimalDetails>, BeanFactoryAw
         this.beanFactory = beanFactory
     }
 
+    @Throws(Exception::class)
     override fun get(environment: DataFetchingEnvironment?): NestedAnimalDetails {
         val id = environment?.getSource<NestedAnimal>()?.id
         if (id == null) {

example/src/main/kotlin/com.expedia.graphql.sample/validation/DataFetcherExecutionValidator.kt

@@ -20,6 +20,7 @@ class DataFetcherExecutionValidator(private val validator: Validator) : DataFetc
         }
     }
 
+    @Throws(ValidationException::class)
     override fun onFailure(evaluationResult: Any, parameter: Parameter, argumentName: String, environment: DataFetchingEnvironment): Nothing {
         val violations = evaluationResult as Set<ConstraintViolation<*>>
         throw ValidationException(violations.map { it.asConstraintError() })

src/main/kotlin/com/expedia/graphql/schema/exceptions/ConflictingTypesException.kt renamed to src/main/kotlin/com/expedia/graphql/exceptions/ConflictingTypesException.kt

@@ -1,4 +1,4 @@
-package com.expedia.graphql.schema.exceptions
+package com.expedia.graphql.exceptions
 
 import kotlin.reflect.KClass
 

src/main/kotlin/com/expedia/graphql/exceptions/CouldNotCastToKClassException.kt

@@ -0,0 +1,9 @@
+package com.expedia.graphql.exceptions
+
+import kotlin.reflect.KType
+
+/**
+ * Thrown if could not cast the KType.classifier to KClass
+ */
+class CouldNotCastToKClassException(kType: KType)
+    : GraphQLKotlinException("Could not cast the KType.classifier to KClass. KType=$kType")

src/main/kotlin/com/expedia/graphql/schema/exceptions/CouldNotGetJvmNameOfKTypeException.kt renamed to src/main/kotlin/com/expedia/graphql/exceptions/CouldNotGetJvmNameOfKTypeException.kt

@@ -1,4 +1,4 @@
-package com.expedia.graphql.schema.exceptions
+package com.expedia.graphql.exceptions
 
 import kotlin.reflect.KType
 

src/main/kotlin/com/expedia/graphql/schema/exceptions/CouldNotGetNameOfAnnotationException.kt renamed to src/main/kotlin/com/expedia/graphql/exceptions/CouldNotGetNameOfAnnotationException.kt

@@ -1,4 +1,4 @@
-package com.expedia.graphql.schema.exceptions
+package com.expedia.graphql.exceptions
 
 import kotlin.reflect.KClass
 

src/main/kotlin/com/expedia/graphql/exceptions/CouldNotGetNameOfArgumentException.kt

@@ -0,0 +1,9 @@
+package com.expedia.graphql.exceptions
+
+import kotlin.reflect.KParameter
+
+/**
+ * Thrown when unable to get the simple name of a function argument
+ */
+class CouldNotGetNameOfArgumentException(kParameter: KParameter)
+    : GraphQLKotlinException("Could not get name of parameter $kParameter")

src/main/kotlin/com/expedia/graphql/schema/exceptions/CouldNotGetNameOfEnumException.kt renamed to src/main/kotlin/com/expedia/graphql/exceptions/CouldNotGetNameOfEnumException.kt

@@ -1,4 +1,4 @@
-package com.expedia.graphql.schema.exceptions
+package com.expedia.graphql.exceptions
 
 import kotlin.reflect.KClass
 

src/main/kotlin/com/expedia/graphql/schema/exceptions/GraphQLKotlinException.kt renamed to src/main/kotlin/com/expedia/graphql/exceptions/GraphQLKotlinException.kt

@@ -1,4 +1,4 @@
-package com.expedia.graphql.schema.exceptions
+package com.expedia.graphql.exceptions
 
 /**
  * Base exception that all our library exceptions extend from.