Merge pull request #56 from minamicr/abstract-factory-pattern

Implementation of abstract factory pattern

Design Patterns/Abstract Factory Pattern/README.md

@@ -0,0 +1,15 @@
+ABSTRACT FACTORY
+
+Definição:
+Prover uma interface para criar famílias de objetos relacionados ou dependentes sem especificar suas classes concretas.
+Responsável por criar um conjunto de objetos dentro do mesmo contexto.
+
+Projeto:
+O exemplo refere-se a um certificado (Certificate) e empacotamento (Packing), que serão aplicados em um aparelho celular.
+Este celular pode ser produzido no Brazil ou Estados Unidos, devendo seguir as regras do respectivo país (CountryRulesAbstractFactory).
+Para testar o pattern, foi desenvolvida a classe AbstractFactoryTest.
+
+Informações adicionais:
+Este exemplo faz parte do curso Padrões de Projeto em JAVA na Prática - Udemy - Cod3r
+Fonte adicional para estudo de patterns:
+https://refactoring.guru/design-patterns/abstract-factory

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/factory/BrazilianRulesAbstractFactory.java

@@ -0,0 +1,19 @@
+package com.abstractfactory.java.factory;
+
+
+import com.abstractfactory.java.model.certificate.BrazilianCertificate;
+import com.abstractfactory.java.model.certificate.Certificate;
+import com.abstractfactory.java.model.packing.BrazilianPacking;
+import com.abstractfactory.java.model.packing.Packing;
+
+public class BrazilianRulesAbstractFactory implements CountryRulesAbstractFactory {
+
+	public Certificate getCertificates() {
+		return new BrazilianCertificate();
+	}
+
+	public Packing getPacking() {
+		return new BrazilianPacking();
+	}
+
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/factory/CountryRulesAbstractFactory.java

@@ -0,0 +1,11 @@
+package com.abstractfactory.java.factory;
+
+
+import com.abstractfactory.java.model.certificate.Certificate;
+import com.abstractfactory.java.model.packing.Packing;
+
+public interface CountryRulesAbstractFactory {
+	Certificate getCertificates();
+
+	Packing getPacking();
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/factory/USRulesAbstractFactory.java

@@ -0,0 +1,18 @@
+package com.abstractfactory.java.factory;
+
+import com.abstractfactory.java.model.certificate.Certificate;
+import com.abstractfactory.java.model.certificate.USCertificate;
+import com.abstractfactory.java.model.packing.Packing;
+import com.abstractfactory.java.model.packing.USPacking;
+
+public class USRulesAbstractFactory implements CountryRulesAbstractFactory {
+
+	public Certificate getCertificates() {
+		return new USCertificate();
+	}
+
+	public Packing getPacking() {
+		return new USPacking();
+	}
+
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/certificate/BrazilianCertificate.java

@@ -0,0 +1,8 @@
+package com.abstractfactory.java.model.certificate;
+
+public class BrazilianCertificate implements Certificate {
+  @Override
+  public String applyCertification() {
+    return "\t- Calibrating Brazil rules\n\t- Applying Anatel's Stamp";
+  }
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/certificate/Certificate.java

@@ -0,0 +1,5 @@
+package com.abstractfactory.java.model.certificate;
+
+public interface Certificate {
+  String applyCertification();
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/certificate/USCertificate.java

@@ -0,0 +1,9 @@
+package com.abstractfactory.java.model.certificate;
+
+public class USCertificate implements Certificate {
+
+	public String applyCertification() {
+		return "\t- Calibrating US rules";
+	}
+
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/packing/BrazilianPacking.java

@@ -0,0 +1,10 @@
+package com.abstractfactory.java.model.packing;
+
+public class BrazilianPacking implements Packing {
+
+  @Override
+  public String pack() {
+
+    return "\t- Packing in Brazil";
+  }
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/packing/Packing.java

@@ -0,0 +1,5 @@
+package com.abstractfactory.java.model.packing;
+
+public interface Packing {
+  String pack();
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/model/packing/USPacking.java

@@ -0,0 +1,9 @@
+package com.abstractfactory.java.model.packing;
+
+public class USPacking implements Packing {
+
+	public String pack() {
+		return "\t- Packing in US";
+	}
+
+}

Design Patterns/Abstract Factory Pattern/com/abstractfactory/java/test/AbstractFactoryTest.java

@@ -0,0 +1,30 @@
+package com.abstractfactory.java.test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import com.abstractfactory.java.factory.BrazilianRulesAbstractFactory;
+import com.abstractfactory.java.factory.CountryRulesAbstractFactory;
+import com.abstractfactory.java.factory.USRulesAbstractFactory;
+import org.junit.jupiter.api.Test;
+
+public class AbstractFactoryTest {
+
+  @Test
+  void whenInstantiateBrazilRulesReturnCertificateAndPackInBrazil(){
+    String match = "Brazil";
+    CountryRulesAbstractFactory rules = new BrazilianRulesAbstractFactory();
+    assertTrue(rules.getCertificates().applyCertification().contains(match));
+    assertTrue(rules.getPacking().pack().contains(match));
+
+  }
+
+  @Test
+  void whenInstantiateUSRulesReturnCertificateAndPackInUS(){
+    String match = "US";
+    CountryRulesAbstractFactory rules = new USRulesAbstractFactory();
+    assertTrue(rules.getCertificates().applyCertification().contains(match));
+    assertTrue(rules.getPacking().pack().contains(match));
+
+  }
+
+}