Add the o.s.b.d.g.core.env.support.Service class and ADT modeling the basic concept of a Pivotal CloudFoundry service.geode-spring-boot-starter/src/main/java/org/springframework/boot/data/geode/core/env/support/Service.java

geode-spring-boot-starter/src/main/java/org/springframework/boot/data/geode/core/env/support/Service.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package org.springframework.boot.data.geode.core.env.support;
+
+import org.springframework.util.Assert;
+
+/**
+ * The {@link Service} class is an Abstract Data Type (ADT) modeling a Pivotal CloudFoundry Service.
+ *
+ * @author John Blum
+ * @since 1.0.0
+ */
+@SuppressWarnings("unused")
+public class Service {
+
+	/**
+	 * Factory method to construct a new {@link Service} initialized with a {@link String name}.
+	 *
+	 * @param name {@link String} containing the name of the {@link Service}.
+	 * @return a new {@link Service} configured with the given {@link String name}.
+	 * @throws IllegalArgumentException if the {@link String name} is {@literal null} or empty.
+	 * @see #Service(String)
+	 */
+	public static Service with(String name) {
+		return new Service(name);
+	}
+
+	private final String name;
+
+	/**
+	 * Constructs a new {@link Service} initialized with a {@link String name}.
+	 *
+	 * @param name {@link String} containing the name of the {@link Service}.
+	 * @throws IllegalArgumentException if the {@link String name} is {@literal null} or empty.
+	 */
+	Service(String name) {
+
+		Assert.hasText(name, String.format("Service name [%s] is required", name));
+
+		this.name = name;
+	}
+
+	/**
+	 * Returns the {@link String name} of this {@link Service}.
+	 *
+	 * @return this {@link Service Service's} {@link String name}.
+	 */
+	public String getName() {
+		return this.name;
+	}
+
+	@Override
+	public String toString() {
+		return getName();
+	}
+}

geode-spring-boot-starter/src/test/java/org/springframework/boot/data/geode/core/env/support/ServiceUnitTests.java

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+/*
+ * Copyright 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package org.springframework.boot.data.geode.core.env.support;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+/**
+ * Unit tests for {@link Service}.
+ *
+ * @author John Blum
+ * @see org.junit.Test
+ * @see org.springframework.boot.data.geode.core.env.support.Service
+ * @since 1.0.0
+ */
+public class ServiceUnitTests {
+
+	@Test
+	public void withNameReturnsNewService() {
+
+		Service service = Service.with("test");
+
+		assertThat(service).isNotNull();
+		assertThat(service.getName()).isEqualTo("test");
+	}
+
+	private void testWithInvalidNameThrowsIllegalArgumentException(String name) {
+
+		try {
+			Service.with(name);
+		}
+		catch (IllegalArgumentException expected) {
+
+			assertThat(expected).hasMessage("Service name [%s] is required", name);
+			assertThat(expected).hasNoCause();
+
+			throw expected;
+		}
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void withBlankServiceNameThrowsIllegalArgumentException() {
+		testWithInvalidNameThrowsIllegalArgumentException("  ");
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void withEmptyServiceNameThrowsIllegalArgumentException() {
+		testWithInvalidNameThrowsIllegalArgumentException("");
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void withNullServiceNameThrowsIllegalArgumentException() {
+		testWithInvalidNameThrowsIllegalArgumentException("");
+	}
+
+	@Test
+	public void toStringReturnsServiceName() {
+		assertThat(Service.with("test").toString()).isEqualTo("test");
+	}
+}