tysonnorris commented on a change in pull request #2650: Apply standard scala
formatting.
URL:
https://github.com/apache/incubator-openwhisk/pull/2650#discussion_r134609473
##########
File path: common/scala/src/main/scala/whisk/common/Config.scala
##########
@@ -42,113 +42,120 @@ import scala.util.Try
* @param optionalProperties a Set of optional properties which may or not be
defined.
* @param env an optional environment to read from (defaults to sys.env).
*/
-class Config(
- requiredProperties: Map[String, String],
- optionalProperties: Set[String] = Set())(
- env: Map[String, String] = sys.env)(
- implicit logging: Logging) {
-
- private val settings = getProperties().toMap.filter {
- case (k, v) => requiredProperties.contains(k) ||
- (optionalProperties.contains(k) && v != null)
- }
+class Config(requiredProperties: Map[String, String], optionalProperties:
Set[String] = Set())(
+ env: Map[String, String] = sys.env)(implicit logging: Logging) {
- lazy val isValid: Boolean = Config.validateProperties(requiredProperties,
settings)
-
- /**
- * Gets value for key if it exists else the empty string.
- * The value of the override key will instead be returned if its value is
present in the map.
- *
- * @param key to lookup
- * @param overrideKey the property whose value will be returned if the map
contains the override key.
- * @return value for the key or the empty string if the key does not have
a value/does not exist
- */
- def apply(key: String, overrideKey: String = ""): String = {
- Try(settings(overrideKey)).orElse(Try(settings(key))).getOrElse("")
- }
+ private val settings = getProperties().toMap.filter {
+ case (k, v) =>
+ requiredProperties.contains(k) ||
+ (optionalProperties.contains(k) && v != null)
+ }
- /**
- * Returns the value of a given key.
- *
- * @param key the property that has to be returned.
- */
- def getProperty(key: String): String = {
- this(key)
- }
+ lazy val isValid: Boolean =
+ Config.validateProperties(requiredProperties, settings)
- /**
- * Returns the value of a given key parsed as a double.
- * If parsing fails, return the default value.
- *
- * @param key the property that has to be returned.
- */
- def getAsDouble(key: String, defaultValue: Double): Double = {
- Try { getProperty(key).toDouble } getOrElse { defaultValue }
- }
+ /**
+ * Gets value for key if it exists else the empty string.
+ * The value of the override key will instead be returned if its value is
present in the map.
+ *
+ * @param key to lookup
+ * @param overrideKey the property whose value will be returned if the map
contains the override key.
+ * @return value for the key or the empty string if the key does not have a
value/does not exist
+ */
+ def apply(key: String, overrideKey: String = ""): String = {
+ Try(settings(overrideKey)).orElse(Try(settings(key))).getOrElse("")
+ }
- /**
- * Returns the value of a given key parsed as an integer.
- * If parsing fails, return the default value.
- *
- * @param key the property that has to be returned.
- */
- def getAsInt(key: String, defaultValue: Int): Int = {
- Try { getProperty(key).toInt } getOrElse { defaultValue }
- }
+ /**
+ * Returns the value of a given key.
+ *
+ * @param key the property that has to be returned.
+ */
+ def getProperty(key: String): String = {
+ this(key)
+ }
+
+ /**
+ * Returns the value of a given key parsed as a double.
+ * If parsing fails, return the default value.
+ *
+ * @param key the property that has to be returned.
+ */
+ def getAsDouble(key: String, defaultValue: Double): Double = {
+ Try { getProperty(key).toDouble } getOrElse { defaultValue }
+ }
- /**
- * Converts the set of property to a string for debugging.
- */
- def mkString: String = settings.mkString("\n")
-
- /**
- * Loads the properties from the environment into a mutable map.
- *
- * @return a pair which is the Map defining the properties, and a boolean
indicating whether validation succeeded.
- */
- protected def getProperties(): scala.collection.mutable.Map[String,
String] = {
- val required = scala.collection.mutable.Map[String, String]() ++=
requiredProperties
- Config.readPropertiesFromEnvironment(required, env)
-
- // for optional value, assign them a default from the required
properties list
- // to prevent loss of a default value on a required property that may
not otherwise be defined
- val optional = scala.collection.mutable.Map[String, String]() ++=
optionalProperties.map { k => k -> required.getOrElse(k, null) }
- Config.readPropertiesFromEnvironment(optional, env)
-
- required ++ optional
+ /**
+ * Returns the value of a given key parsed as an integer.
+ * If parsing fails, return the default value.
+ *
+ * @param key the property that has to be returned.
+ */
+ def getAsInt(key: String, defaultValue: Int): Int = {
+ Try { getProperty(key).toInt } getOrElse { defaultValue }
+ }
+
+ /**
+ * Converts the set of property to a string for debugging.
+ */
+ def mkString: String = settings.mkString("\n")
+
+ /**
+ * Loads the properties from the environment into a mutable map.
+ *
+ * @return a pair which is the Map defining the properties, and a boolean
indicating whether validation succeeded.
+ */
+ protected def getProperties(): scala.collection.mutable.Map[String, String]
= {
+ val required = scala.collection.mutable
+ .Map[String, String]() ++= requiredProperties
+ Config.readPropertiesFromEnvironment(required, env)
+
+ // for optional value, assign them a default from the required properties
list
+ // to prevent loss of a default value on a required property that may not
otherwise be defined
+ val optional = scala.collection.mutable
+ .Map[String, String]() ++= optionalProperties.map { k =>
Review comment:
another early wrapping?
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