Created a class to map JWTScopes (#18)

Author: PAException

auth/pom.xml

@@ -18,6 +18,11 @@
 			<version>${project.parent.version}</version>
 			<scope>compile</scope>
 		</dependency>
+		<dependency>
+			<groupId>com.gewia.common</groupId>
+			<artifactId>scope</artifactId>
+			<version>${project.parent.version}</version>
+		</dependency>
 
 		<dependency>
 			<groupId>com.auth0</groupId>

auth/src/main/java/com/gewia/common/auth/jwt/JwtScopes.java

@@ -0,0 +1,39 @@
+package com.gewia.common.auth.jwt;
+
+import com.gewia.common.util.Executor;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class JwtScopes {
+
+	@Getter private List<String> scopes = new ArrayList<>();
+	private boolean containing = false;
+
+	public JwtScopes(List<String> scopes) {
+		this.scopes = Collections.unmodifiableList(scopes);
+	}
+
+	public JwtScopes includes(String scope, Executor executor) {
+		if (this.scopes.contains(scope)) {
+			containing = true;
+			if (executor != null) executor.action();
+		} else containing = false;
+
+		return this;
+	}
+
+	public void orElse(Executor executor) {
+		if (!containing && executor != null) executor.action();
+		containing = false;
+	}
+
+	public boolean getResult() {
+		return containing;
+	}
+
+}

auth/src/test/java/com/gewia/common/auth/jwt/JwtScopesTest.java

@@ -0,0 +1,60 @@
+package com.gewia.common.auth.jwt;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class JwtScopesTest {
+
+	@Test
+	public void testScopesUnmodifiable() {
+		JwtScopes jwtScopes = this.getExampleJwtScopes();
+
+		Assert.assertThrows(UnsupportedOperationException.class, () -> jwtScopes.getScopes().add("another.example.scope"));
+	}
+
+	@Test
+	public void testResultOperation() {
+		JwtScopes jwtScopes = this.getExampleJwtScopes();
+
+		Assert.assertTrue(jwtScopes.includes("microservice.topic.mode.limitation.extra", null).getResult());
+		Assert.assertFalse(jwtScopes.includes("another.exmaple.scope", null).getResult());
+	}
+
+	@Test
+	public void testOrElseOperation() {
+		JwtScopes jwtScopes = this.getExampleJwtScopes();
+
+		AtomicInteger i = new AtomicInteger();
+		jwtScopes.includes("another.example.scope", i::getAndIncrement).orElse(i::getAndDecrement);
+		Assert.assertEquals(-1, i.get());
+	}
+
+	@Test
+	public void testIncludeOperation() {
+		JwtScopes jwtScopes = this.getExampleJwtScopes();
+
+		AtomicInteger i = new AtomicInteger();
+		jwtScopes.includes("microservice.topic.mode.limitation.extra", i::getAndIncrement).orElse(i::getAndDecrement);
+		Assert.assertEquals(1, i.get());
+	}
+
+	@Test
+	public void testInitializing() {
+		List<String> exampleScopes = new ArrayList<>();
+		exampleScopes.add("microservice.topic.mode.limitation.extra");
+		JwtScopes jwtScopes = new JwtScopes(exampleScopes);
+
+		Assert.assertEquals(exampleScopes, jwtScopes.getScopes());
+	}
+
+	private JwtScopes getExampleJwtScopes() {
+		List<String> exampleScopes = new ArrayList<>();
+		exampleScopes.add("microservice.topic.mode.limitation.extra");
+
+		return  new JwtScopes(exampleScopes);
+	}
+
+}

util/src/main/java/com/gewia/common/util/Executor.java

@@ -0,0 +1,8 @@
+package com.gewia.common.util;
+
+@FunctionalInterface
+public interface Executor {
+
+	void action();
+
+}