Rationalize AuditEventRepository contract

Closes gh-11331

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/audit/AuditEventRepository.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -33,24 +33,6 @@ public interface AuditEventRepository {
 	 */
 	void add(AuditEvent event);
 
-	/**
-	 * Find audit events since the time provided.
-	 * @param after timestamp of earliest result required (or {@code null} if
-	 * unrestricted)
-	 * @return audit events
-	 * @since 1.4.0
-	 */
-	List<AuditEvent> find(Date after);
-
-	/**
-	 * Find audit events relating to the specified principal since the time provided.
-	 * @param principal the principal name to search for (or {@code null} if unrestricted)
-	 * @param after timestamp of earliest result required (or {@code null} if
-	 * unrestricted)
-	 * @return audit events relating to the principal
-	 */
-	List<AuditEvent> find(String principal, Date after);
-
 	/**
 	 * Find audit events of specified type relating to the specified principal since the
 	 * time provided.

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/audit/InMemoryAuditEventRepository.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -69,16 +69,6 @@ public class InMemoryAuditEventRepository implements AuditEventRepository {
 		}
 	}
 
-	@Override
-	public List<AuditEvent> find(Date after) {
-		return find(null, after, null);
-	}
-
-	@Override
-	public List<AuditEvent> find(String principal, Date after) {
-		return find(principal, after, null);
-	}
-
 	@Override
 	public List<AuditEvent> find(String principal, Date after, String type) {
 		LinkedList<AuditEvent> events = new LinkedList<>();

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/audit/InMemoryAuditEventRepositoryTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 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.
@@ -45,7 +45,7 @@ public class InMemoryAuditEventRepositoryTests {
 		InMemoryAuditEventRepository repository = new InMemoryAuditEventRepository();
 		repository.add(new AuditEvent("dave", "a"));
 		repository.add(new AuditEvent("dave", "b"));
-		List<AuditEvent> events = repository.find("dave", null);
+		List<AuditEvent> events = repository.find("dave", null, null);
 		assertThat(events.size()).isEqualTo(2);
 		assertThat(events.get(0).getType()).isEqualTo("a");
 		assertThat(events.get(1).getType()).isEqualTo("b");
@@ -57,7 +57,7 @@ public class InMemoryAuditEventRepositoryTests {
 		repository.add(new AuditEvent("dave", "a"));
 		repository.add(new AuditEvent("dave", "b"));
 		repository.add(new AuditEvent("dave", "c"));
-		List<AuditEvent> events = repository.find("dave", null);
+		List<AuditEvent> events = repository.find("dave", null, null);
 		assertThat(events.size()).isEqualTo(2);
 		assertThat(events.get(0).getType()).isEqualTo("b");
 		assertThat(events.get(1).getType()).isEqualTo("c");
@@ -78,7 +78,7 @@ public class InMemoryAuditEventRepositoryTests {
 		repository.add(new AuditEvent("phil", "b"));
 		repository.add(new AuditEvent("dave", "c"));
 		repository.add(new AuditEvent("phil", "d"));
-		List<AuditEvent> events = repository.find("dave", null);
+		List<AuditEvent> events = repository.find("dave", null, null);
 		assertThat(events.size()).isEqualTo(2);
 		assertThat(events.get(0).getType()).isEqualTo("a");
 		assertThat(events.get(1).getType()).isEqualTo("c");
@@ -113,11 +113,11 @@ public class InMemoryAuditEventRepositoryTests {
 		calendar.add(Calendar.DAY_OF_YEAR, 1);
 		repository.add(new AuditEvent(calendar.getTime(), "phil", "d", data));
 		calendar.add(Calendar.DAY_OF_YEAR, 1);
-		List<AuditEvent> events = repository.find(after);
+		List<AuditEvent> events = repository.find(null, after, null);
 		assertThat(events.size()).isEqualTo(2);
 		assertThat(events.get(0).getType()).isEqualTo("c");
 		assertThat(events.get(1).getType()).isEqualTo("d");
-		events = repository.find("dave", after);
+		events = repository.find("dave", after, null);
 		assertThat(events.size()).isEqualTo(1);
 		assertThat(events.get(0).getType()).isEqualTo("c");
 	}