From 2f5b01f460e29b4dd56f6e8538f19e30016ae49c Mon Sep 17 00:00:00 2001
From: Paul Campbell <pcampbell@kemitix.net>
Date: Tue, 26 Jun 2018 07:22:32 +0100
Subject: [PATCH] Remove Identity

---
 CHANGELOG                                     |  3 +-
 src/main/java/net/kemitix/mon/Identity.java   | 45 -------------------
 .../java/net/kemitix/mon/IdentityTest.java    | 41 -----------------
 3 files changed, 2 insertions(+), 87 deletions(-)
 delete mode 100644 src/main/java/net/kemitix/mon/Identity.java
 delete mode 100644 src/test/java/net/kemitix/mon/IdentityTest.java

diff --git a/CHANGELOG b/CHANGELOG
index 354d099..8de5837 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,10 +4,11 @@ CHANGELOG
 0.7.0
 -----
 
+* Remove `Identity`
 * Add `Result`
 * Moved `Maybe` to `net.kemitix.mon.maybe.Maybe`
+* `Maybe` is now a Monad
 * Add `Maybe.stream()`
-* Deprecate `Maybe.fromOptional(Optional)`
 
 0.6.0
 -----
diff --git a/src/main/java/net/kemitix/mon/Identity.java b/src/main/java/net/kemitix/mon/Identity.java
deleted file mode 100644
index 4b4df37..0000000
--- a/src/main/java/net/kemitix/mon/Identity.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Paul Campbell
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
- * and associated documentation files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies
- * or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
- * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
- * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-package net.kemitix.mon;
-
-import lombok.RequiredArgsConstructor;
-
-import java.util.function.Function;
-
-/**
- * Identity.
- *
- * @param <T> the type of the identity content
- *
- * @author Paul Campbell (pcampbell@kemitix.net)
- */
-@RequiredArgsConstructor
-class Identity<T> implements Functor<T, Identity<?>> {
-
-    private final T value;
-
-    @Override
-    public <R> Identity<R> map(final Function<T, R> f) {
-        return new Identity<>(f.apply(value));
-    }
-
-}
diff --git a/src/test/java/net/kemitix/mon/IdentityTest.java b/src/test/java/net/kemitix/mon/IdentityTest.java
deleted file mode 100644
index db95452..0000000
--- a/src/test/java/net/kemitix/mon/IdentityTest.java
+++ /dev/null
@@ -1,41 +0,0 @@
-package net.kemitix.mon;
-
-import org.assertj.core.api.WithAssertions;
-import org.junit.Test;
-
-/**
- * Tests for {@link Identity}.
- *
- * @author Paul Campbell (pcampbell@kemitix.net)
- */
-public class IdentityTest implements WithAssertions {
-
-    @Test
-    public void canMapIdentityFromStringToInteger() {
-        //given
-        final Identity<String> idString = new Identity<>("abc");
-        //when
-        final Identity<Integer> idInt = idString.map(String::length);
-        //then
-        assertIdentityContains(idInt, 3);
-    }
-
-    private <T> void assertIdentityContains(final Identity<T> identity, final T expected) {
-        identity.map(id -> assertThat(id).isEqualTo(expected));
-    }
-
-    @Test
-    public void canFluentlyComposeFunctions() {
-        //given
-        final Customer customer = new Customer(new Address("Park Place"));
-        //when
-        final Identity<byte[]> idBytes = new Identity<>(customer).map(Customer::getAddress)
-                                                                 .map(Address::getStreet)
-                                                                 .map((String s) -> s.substring(0, 3))
-                                                                 .map(String::toLowerCase)
-                                                                 .map(String::getBytes);
-        //then
-        assertIdentityContains(idBytes, "par".getBytes());
-    }
-
-}