Commit add Opt/T fromBytes/fromHex methods similar to StringFactory (#2499)

crypto/src/main/scala/org/bitcoins/crypto/Factory.scala

@@ -2,6 +2,8 @@ package org.bitcoins.crypto
 
 import scodec.bits.ByteVector
 
+import scala.util.Try
+
 /**
   * Created by chris on 2/26/16.
   * Trait to implement ubiquitous factory functions across our codebase
@@ -11,12 +13,40 @@ abstract class Factory[+T] {
   /** Creates a T out of a hex string. */
   def fromHex(hex: String): T = fromBytes(CryptoBytesUtil.decodeHex(hex))
 
+  /** Deserializes the given hex string to a T
+    * If the hex is not correct, [[None]] is returned
+    */
+  def fromHexOpt(hex: String): Option[T] = {
+    fromHexT(hex).toOption
+  }
+
+  /** Deserializes the given hex string
+    * if the hex is not correct, we give you a [[Failure]]
+    */
+  def fromHexT(hex: String): Try[T] = {
+    Try(fromHex(hex))
+  }
+
   /** Creates a T out of a hex string in little endian. */
   def fromHexLE(hex: String): T = fromBytesLE(CryptoBytesUtil.decodeHex(hex))
 
   /** Creates a T out of a sequence of bytes. */
   def fromBytes(bytes: ByteVector): T
 
+  /** Deserializes the given [[ByteVector]] to a T
+    * If the [[ByteVector]] is not correct, [[None]] is returned
+    */
+  def fromBytesOpt(bytes: ByteVector): Option[T] = {
+    fromBytesT(bytes).toOption
+  }
+
+  /** Deserializes the given [[ByteVector]] string
+    * if the [[ByteVector]] is not correct, we give you a [[Failure]]
+    */
+  def fromBytesT(bytes: ByteVector): Try[T] = {
+    Try(fromBytes(bytes))
+  }
+
   /** Creates a T out of a sequence of bytes in little endian. */
   def fromBytesLE(bytes: ByteVector): T = fromBytes(bytes.reverse)