Support string names @AutoConfigureBefore/After

Update @AutoConfigureBefore and @AutoConfigureAfter annotations to
support String classnames in addition direct Class references.

Fixes gh-2529

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationSorter.java

 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2015 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.
@@ -18,12 +18,10 @@ package org.springframework.boot.autoconfigure;
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
@@ -56,15 +54,11 @@ class AutoConfigurationSorter {
 
 	public List<String> getInPriorityOrder(Collection<String> classNames)
 			throws IOException {
-
 		final AutoConfigurationClasses classes = new AutoConfigurationClasses(
 				this.metadataReaderFactory, classNames);
-
 		List<String> orderedClassNames = new ArrayList<String>(classNames);
-
 		// Initially sort alphabetically
 		Collections.sort(orderedClassNames);
-
 		// Then sort by order
 		Collections.sort(orderedClassNames, new Comparator<String>() {
 			@Override
@@ -74,12 +68,9 @@ class AutoConfigurationSorter {
 				return (i1 < i2) ? -1 : (i1 > i2) ? 1 : 0;
 			}
 		});
-
 		// Then respect @AutoConfigureBefore @AutoConfigureAfter
 		orderedClassNames = sortByAnnotation(classes, orderedClassNames);
-
 		return orderedClassNames;
-
 	}
 
 	private List<String> sortByAnnotation(AutoConfigurationClasses classes,
@@ -170,7 +161,10 @@ class AutoConfigurationSorter {
 			if (attributes == null) {
 				return Collections.emptySet();
 			}
-			return new HashSet<String>(Arrays.asList((String[]) attributes.get("value")));
+			Set<String> value = new LinkedHashSet<String>();
+			Collections.addAll(value, (String[]) attributes.get("value"));
+			Collections.addAll(value, (String[]) attributes.get("name"));
+			return value;
 		}
 
 	}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigureAfter.java

@@ -35,6 +35,13 @@ public @interface AutoConfigureAfter {
 	 * The auto-configure classes that should have already been applied.
 	 * @return the classes
 	 */
-	Class<?>[] value();
+	Class<?>[] value() default {};
+
+	/**
+	 * The names of the auto-configure classes that should have already been applied.
+	 * @return the class names
+	 * @since 1.2.2
+	 */
+	String[] name() default {};
 
 }

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigureBefore.java

@@ -35,6 +35,13 @@ public @interface AutoConfigureBefore {
 	 * The auto-configure classes that should have not yet been applied.
 	 * @return the classes
 	 */
-	Class<?>[] value();
+	Class<?>[] value() default {};
+
+	/**
+	 * The names of the auto-configure classes that should have already been applied.
+	 * @return the class names
+	 * @since 1.2.2
+	 */
+	String[] name() default {};
 
 }

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnClass.java

 /*
- * Copyright 2012-2013 the original author or authors.
+ * Copyright 2012-2015 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.
@@ -48,4 +48,5 @@ public @interface ConditionalOnClass {
 	 * @return the class names that must be present.
 	 */
 	public String[] name() default {};
+
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/AutoConfigurationSorterTests.java

 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2015 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.
@@ -51,6 +51,8 @@ public class AutoConfigurationSorterTests {
 	private static final String X = AutoConfigureX.class.getName();
 	private static final String Y = AutoConfigureY.class.getName();
 	private static final String Z = AutoConfigureZ.class.getName();
+	private static final String A2 = AutoConfigureA2.class.getName();
+	private static final String W2 = AutoConfigureW2.class.getName();
 
 	@Rule
 	public ExpectedException thrown = ExpectedException.none();
@@ -94,6 +96,13 @@ public class AutoConfigurationSorterTests {
 		assertThat(actual, nameMatcher(C, W, B, A, X));
 	}
 
+	@Test
+	public void byAutoConfigureMixedBeforeAndAfterWithClassNames() throws Exception {
+		List<String> actual = this.sorter.getInPriorityOrder(Arrays.asList(A2, B, C, W2,
+				X));
+		assertThat(actual, nameMatcher(C, W2, B, A2, X));
+	}
+
 	@Test
 	public void byAutoConfigureMixedBeforeAndAfterWithDifferentInputOrder()
 			throws Exception {
@@ -160,6 +169,10 @@ public class AutoConfigurationSorterTests {
 	public static class AutoConfigureA {
 	}
 
+	@AutoConfigureAfter(name = "org.springframework.boot.autoconfigure.AutoConfigurationSorterTests$AutoConfigureB")
+	public static class AutoConfigureA2 {
+	}
+
 	@AutoConfigureAfter({ AutoConfigureC.class, AutoConfigureD.class,
 			AutoConfigureE.class })
 	public static class AutoConfigureB {
@@ -179,6 +192,10 @@ public class AutoConfigurationSorterTests {
 	public static class AutoConfigureW {
 	}
 
+	@AutoConfigureBefore(name = "org.springframework.boot.autoconfigure.AutoConfigurationSorterTests$AutoConfigureB")
+	public static class AutoConfigureW2 {
+	}
+
 	public static class AutoConfigureX {
 	}