Merge pull request #161 from anderius/feature/expose-context-names

Exposing context names

spring-cloud-context/src/main/java/org/springframework/cloud/context/named/NamedContextFactory.java

@@ -2,8 +2,10 @@ package org.springframework.cloud.context.named;
 
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
 import org.springframework.beans.BeansException;
@@ -61,6 +63,10 @@ public abstract class NamedContextFactory<C extends NamedContextFactory.Specific
 		}
 	}
 
+	public Set<String> getContextNames() {
+		return new HashSet<>(contexts.keySet());
+	}
+
 	@Override
 	public void destroy() {
 		Collection<AnnotationConfigApplicationContext> values = this.contexts.values();

spring-cloud-context/src/test/java/org/springframework/cloud/context/named/NamedContextFactoryTests.java

@@ -12,6 +12,7 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 
 import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.hasItems;
 import static org.hamcrest.Matchers.notNullValue;
 import static org.hamcrest.Matchers.nullValue;
 import static org.junit.Assert.assertThat;
@@ -37,6 +38,8 @@ public class NamedContextFactoryTests {
 		Bar bar = factory.getInstance("bar", Bar.class);
 		assertThat("bar was null", bar, is(notNullValue()));
 
+		assertThat("context names not exposed", factory.getContextNames(), hasItems("foo", "bar"));
+
 		Bar foobar = factory.getInstance("foo", Bar.class);
 		assertThat("bar was not null", foobar, is(nullValue()));