Package io.nem.catapult.builders

Class GeneratorUtils

  • public final class GeneratorUtils
extends java.lang.Object
    Generator utility class.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static interface  GeneratorUtils.ThrowingConsumer<T,​E extends java.lang.Exception>
      Throwing consumer interface.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <E extends java.lang.RuntimeException>
      java.lang.RuntimeException      		 getExceptionToPropagate​(java.lang.Exception exception)
      Gets a runtime exception to propagates from an exception.
      static <E extends java.lang.RuntimeException>
      java.lang.RuntimeException      		 getExceptionToPropagate​(java.lang.Exception exception, java.util.function.Function<java.lang.Exception,​E> wrap)
      Gets a runtime exception to propagates from an exception.
      static void isFalse​(boolean expression, java.lang.String message, java.lang.Object... values)
      Throws if the value is not false.
      static void isTrue​(boolean expression, java.lang.String message, java.lang.Object... values)
      Throws if the value is not true.
      static <T> void notNull​(T object, java.lang.String message, java.lang.Object... values)
      Throws if the object is null.
      static <T> T propagate​(java.util.concurrent.Callable<T> callable)
      Propagates checked exceptions as a runtime exception.
      static <T,​E extends java.lang.RuntimeException>
      T      		 propagate​(java.util.concurrent.Callable<T> callable, java.util.function.Function<java.lang.Exception,​E> wrap)
      Propagates checked exceptions as a specific runtime exception.
      static byte[] serialize​(GeneratorUtils.ThrowingConsumer<java.io.DataOutputStream,​java.lang.Exception> consumer)
      Serializes data using a helper function to write to the stream.
      static <T extends java.lang.Enum<T> & BitMaskable>
      long      		 toLong​(java.lang.Class<T> enumClass, java.util.EnumSet<T> enumSet)
      Creates a bitwise representation for an EnumSet.
      static <T extends java.lang.Enum<T> & BitMaskable>
      java.util.EnumSet<T>      		 toSet​(java.lang.Class<T> enumClass, long bitMaskValue)
      Creates a EnumSet from from a bit representation.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • notNull

        public static <T> void notNull​(T object,
                               java.lang.String message,
                               java.lang.Object... values)
        Throws if the object is null.
        Type Parameters:
        T - Type of object.
        Parameters:
        object - Object to to check.
        message - Format string message.
        values - Format values.

      • isTrue

        public static void isTrue​(boolean expression,
                          java.lang.String message,
                          java.lang.Object... values)
        Throws if the value is not true.
        Parameters:
        expression - Expression to check.
        message - Format string message.
        values - Format values.

      • isFalse

        public static void isFalse​(boolean expression,
                           java.lang.String message,
                           java.lang.Object... values)
        Throws if the value is not false.
        Parameters:
        expression - Expression to check.
        message - Format string message.
        values - Format values.

      • toLong

        public static <T extends java.lang.Enum<T> & BitMaskable> long toLong​(java.lang.Class<T> enumClass,
                                                                      java.util.EnumSet<T> enumSet)
        Creates a bitwise representation for an EnumSet.
        Type Parameters:
        T - Type of enum.
        Parameters:
        enumClass - Enum type.
        enumSet - EnumSet to convert to bit representation.
        Returns:
        Long value of the EnumSet.

      • toSet

        public static <T extends java.lang.Enum<T> & BitMaskable> java.util.EnumSet<T> toSet​(java.lang.Class<T> enumClass,
                                                                                     long bitMaskValue)
        Creates a EnumSet from from a bit representation.
        Type Parameters:
        T - Enum type.
        Parameters:
        enumClass - Enum class.
        bitMaskValue - Bitmask value.
        Returns:
        EnumSet representing the long value.

      • getExceptionToPropagate

        public static <E extends java.lang.RuntimeException> java.lang.RuntimeException getExceptionToPropagate​(java.lang.Exception exception,
                                                                                                        java.util.function.Function<java.lang.Exception,​E> wrap)
        Gets a runtime exception to propagates from an exception.
        Type Parameters:
        E - Specific exception type.
        Parameters:
        exception - Exception to propagate.
        wrap - Function that wraps an exception in a runtime exception.
        Returns:
        RuntimeException to throw.

      • getExceptionToPropagate

        public static <E extends java.lang.RuntimeException> java.lang.RuntimeException getExceptionToPropagate​(java.lang.Exception exception)
        Gets a runtime exception to propagates from an exception.
        Type Parameters:
        E - Specific exception type.
        Parameters:
        exception - Exception to propagate.
        Returns:
        RuntimeException to throw.

      • propagate

        public static <T,​E extends java.lang.RuntimeException> T propagate​(java.util.concurrent.Callable<T> callable,
                                                                         java.util.function.Function<java.lang.Exception,​E> wrap)
        Propagates checked exceptions as a specific runtime exception.
        Type Parameters:
        T - Return type.
        E - Specific exception type.
        Parameters:
        callable - Function to call.
        wrap - Function that wraps an exception in a runtime exception.
        Returns:
        Function result.

      • propagate

        public static <T> T propagate​(java.util.concurrent.Callable<T> callable)
        Propagates checked exceptions as a runtime exception.
        Type Parameters:
        T - Function return type.
        Parameters:
        callable - Function to call.
        Returns:
        Function result.

      • serialize

        public static byte[] serialize​(GeneratorUtils.ThrowingConsumer<java.io.DataOutputStream,​java.lang.Exception> consumer)
        Serializes data using a helper function to write to the stream.
        Parameters:
        consumer - Helper function that writes data to DataOutputStream.
        Returns:
        Byte array of data written.