ProtoUtils
public final class ProtoUtils
Contains various utility methods to ease use of protos and increased readability in code.
Summary
Public methods |
|
|---|---|
static String |
capitalizeFirstChar(String aString)Capitalizes the first char of a String. |
static T |
<T extends Enum> checkedGetEnumForProto(int protoEnumIndex, Class<T> enumClass)Maps an enum proto message type to a internal representation enum type T. |
static List<Field> |
getFilteredFieldList(Returns a filtered view of a class's declared |
Public methods
capitalizeFirstChar
public static String capitalizeFirstChar(String aString)
Capitalizes the first char of a String.
Examples: "espresso" -> "Espresso", "Espresso" -> "Espresso"
| Parameters | |
|---|---|
String aString |
the String to capitalize |
| Returns | |
|---|---|
String |
capitalized String or original String, if aString was empty |
checkedGetEnumForProto
public static T <T extends Enum> checkedGetEnumForProto(int protoEnumIndex, Class<T> enumClass)
Maps an enum proto message type to a internal representation enum type T.
| Parameters | |
|---|---|
<T extends Enum> |
the generic type of the enum representation |
int protoEnumIndex |
the proto enum index of the value returned by the unwrapped proto message |
Class<T> enumClass |
the enum class to map against |
| Returns | |
|---|---|
T |
the enum constant for a proto enum index |
getFilteredFieldList
public static List<Field> getFilteredFieldList(
Class<Object> clazz,
List<String> targetFieldNames
)
Returns a filtered view of a class's declared Field list.
| Parameters | |
|---|---|
Class<Object> clazz |
the class to introspect |
List<String> targetFieldNames |
the field names to filter from a class |
| Throws | |
|---|---|
java.lang.NoSuchFieldException |
if a field name does not exist in |