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snicollsnicoll
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Generate meta-data for nested Lombok types
Closes gh-4397
1 parent 8ede966 commit ae13082

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5 files changed

+160
-17
lines changed

5 files changed

+160
-17
lines changed

‎spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessor.java

Lines changed: 38 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -176,8 +176,9 @@ private void processTypeElement(String prefix, TypeElement element) {
176176
TypeElementMembers members = new TypeElementMembers(this.processingEnv, element);
177177
Map<String, Object> fieldValues = getFieldValues(element);
178178
processSimpleTypes(prefix, element, members, fieldValues);
179-
processLombokTypes(prefix, element, members, fieldValues);
179+
processSimpleLombokTypes(prefix, element, members, fieldValues);
180180
processNestedTypes(prefix, element, members);
181+
processNestedLombokTypes(prefix, element, members);
181182
}
182183

183184
private Map<String, Object> getFieldValues(TypeElement element) {
@@ -218,7 +219,7 @@ private void processSimpleTypes(String prefix, TypeElement element,
218219
}
219220
}
220221

221-
private void processLombokTypes(String prefix, TypeElement element,
222+
private void processSimpleLombokTypes(String prefix, TypeElement element,
222223
TypeElementMembers members, Map<String, Object> fieldValues) {
223224
for (Map.Entry<String, VariableElement> entry : members.getFields().entrySet()) {
224225
String name = entry.getKey();
@@ -247,19 +248,6 @@ private void processLombokTypes(String prefix, TypeElement element,
247248
}
248249
}
249250

250-
private boolean isLombokField(VariableElement field, TypeElement element) {
251-
return hasAnnotation(field, LOMBOK_GETTER_ANNOTATION)
252-
|| hasAnnotation(element, LOMBOK_GETTER_ANNOTATION)
253-
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION);
254-
}
255-
256-
private boolean hasLombokSetter(VariableElement field, TypeElement element) {
257-
return !field.getModifiers().contains(Modifier.FINAL)
258-
&& (hasAnnotation(field, LOMBOK_SETTER_ANNOTATION)
259-
|| hasAnnotation(element, LOMBOK_SETTER_ANNOTATION)
260-
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION));
261-
}
262-
263251
private void processNestedTypes(String prefix, TypeElement element,
264252
TypeElementMembers members) {
265253
for (Map.Entry<String, ExecutableElement> entry : members.getPublicGetters()
@@ -283,6 +271,41 @@ private void processNestedTypes(String prefix, TypeElement element,
283271
}
284272
}
285273

274+
private void processNestedLombokTypes(String prefix, TypeElement element,
275+
TypeElementMembers members) {
276+
for (Map.Entry<String, VariableElement> entry : members.getFields().entrySet()) {
277+
String name = entry.getKey();
278+
VariableElement field = entry.getValue();
279+
if (!isLombokField(field, element)) {
280+
continue;
281+
}
282+
Element returnType = this.processingEnv.getTypeUtils()
283+
.asElement(field.asType());
284+
boolean isNested = isNested(returnType, field, element);
285+
if (returnType != null && returnType instanceof TypeElement
286+
&& isNested) {
287+
String nestedPrefix = ConfigurationMetadata.nestedPrefix(prefix, name);
288+
this.metadataCollector.add(ItemMetadata.newGroup(nestedPrefix,
289+
this.typeUtils.getType(returnType),
290+
this.typeUtils.getType(element), null));
291+
processTypeElement(nestedPrefix, (TypeElement) returnType);
292+
}
293+
}
294+
}
295+
296+
private boolean isLombokField(VariableElement field, TypeElement element) {
297+
return hasAnnotation(field, LOMBOK_GETTER_ANNOTATION)
298+
|| hasAnnotation(element, LOMBOK_GETTER_ANNOTATION)
299+
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION);
300+
}
301+
302+
private boolean hasLombokSetter(VariableElement field, TypeElement element) {
303+
return !field.getModifiers().contains(Modifier.FINAL)
304+
&& (hasAnnotation(field, LOMBOK_SETTER_ANNOTATION)
305+
|| hasAnnotation(element, LOMBOK_SETTER_ANNOTATION)
306+
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION));
307+
}
308+
286309
private boolean isNested(Element returnType, VariableElement field,
287310
TypeElement element) {
288311
if (hasAnnotation(field, nestedConfigurationPropertyAnnotation())) {

‎spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessorTests.java

Lines changed: 28 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -32,8 +32,10 @@
3232
import org.springframework.boot.configurationsample.incremental.FooProperties;
3333
import org.springframework.boot.configurationsample.incremental.RenamedBarProperties;
3434
import org.springframework.boot.configurationsample.lombok.LombokExplicitProperties;
35+
import org.springframework.boot.configurationsample.lombok.LombokInnerClassProperties;
3536
import org.springframework.boot.configurationsample.lombok.LombokSimpleDataProperties;
3637
import org.springframework.boot.configurationsample.lombok.LombokSimpleProperties;
38+
import org.springframework.boot.configurationsample.lombok.SimpleLombokPojo;
3739
import org.springframework.boot.configurationsample.method.EmptyTypeMethodConfig;
3840
import org.springframework.boot.configurationsample.method.InvalidMethodConfig;
3941
import org.springframework.boot.configurationsample.method.MethodAndClassConfig;
@@ -300,6 +302,32 @@ public void lombokExplicitProperties() throws Exception {
300302
"explicit");
301303
}
302304

305+
@Test
306+
public void lombokInnerClassProperties() throws Exception {
307+
ConfigurationMetadata metadata = compile(LombokInnerClassProperties.class);
308+
assertThat(metadata,
309+
containsGroup("config").fromSource(LombokInnerClassProperties.class));
310+
assertThat(metadata,
311+
containsGroup("config.first").ofType(LombokInnerClassProperties.Foo.class)
312+
.fromSource(LombokInnerClassProperties.class));
313+
assertThat(metadata, containsProperty("config.first.name"));
314+
assertThat(metadata, containsProperty("config.first.bar.name"));
315+
assertThat(metadata,
316+
containsGroup("config.second", LombokInnerClassProperties.Foo.class)
317+
.fromSource(LombokInnerClassProperties.class));
318+
assertThat(metadata, containsProperty("config.second.name"));
319+
assertThat(metadata, containsProperty("config.second.bar.name"));
320+
assertThat(metadata, containsGroup("config.third").ofType(SimpleLombokPojo.class)
321+
.fromSource(LombokInnerClassProperties.class));
322+
// For some reason the annotation processor resolves a type for SimpleLombokPojo that
323+
// is resolved (compiled) and the source annotations are gone. Because we don't see the
324+
// @Data annotation anymore, no field is harvested. What is crazy is that a sample project
325+
// works fine so this seem to be related to the unit test environment for some reason.
326+
//assertThat(metadata, containsProperty("config.third.value"));
327+
assertThat(metadata, containsProperty("config.fourth"));
328+
assertThat(metadata, not(containsGroup("config.fourth")));
329+
}
330+
303331
@Test
304332
public void mergingOfAdditionalMetadata() throws Exception {
305333
File metaInfFolder = new File(this.compiler.getOutputLocation(), "META-INF");

‎spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/lombok/LombokInnerClassProperties.java

Lines changed: 61 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,61 @@
1+
/*
2+
* Copyright 2012-2015 the original author or authors.
3+
*
4+
* Licensed under the Apache License, Version 2.0 (the "License");
5+
* you may not use this file except in compliance with the License.
6+
* You may obtain a copy of the License at
7+
*
8+
* http://www.apache.org/licenses/LICENSE-2.0
9+
*
10+
* Unless required by applicable law or agreed to in writing, software
11+
* distributed under the License is distributed on an "AS IS" BASIS,
12+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13+
* See the License for the specific language governing permissions and
14+
* limitations under the License.
15+
*/
16+
17+
package org.springframework.boot.configurationsample.lombok;
18+
19+
import lombok.Data;
20+
21+
import org.springframework.boot.configurationsample.ConfigurationProperties;
22+
import org.springframework.boot.configurationsample.NestedConfigurationProperty;
23+
24+
/**
25+
* Demonstrate the auto-detection of inner config classes using Lombok.
26+
*
27+
* @author Stephane Nicoll
28+
*/
29+
@Data
30+
@ConfigurationProperties(prefix = "config")
31+
public class LombokInnerClassProperties {
32+
33+
private final Foo first = new Foo();
34+
35+
private Foo second = new Foo();
36+
37+
@NestedConfigurationProperty
38+
private final SimpleLombokPojo third = new SimpleLombokPojo();
39+
40+
private Fourth fourth;
41+
42+
@Data
43+
public static class Foo {
44+
45+
private String name;
46+
47+
private final Bar bar = new Bar();
48+
49+
@Data
50+
public static class Bar {
51+
52+
private String name;
53+
54+
}
55+
56+
}
57+
58+
public enum Fourth {
59+
YES, NO
60+
}
61+
}

‎spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/lombok/SimpleLombokPojo.java

Lines changed: 31 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,31 @@
1+
/*
2+
* Copyright 2012-2015 the original author or authors.
3+
*
4+
* Licensed under the Apache License, Version 2.0 (the "License");
5+
* you may not use this file except in compliance with the License.
6+
* You may obtain a copy of the License at
7+
*
8+
* http://www.apache.org/licenses/LICENSE-2.0
9+
*
10+
* Unless required by applicable law or agreed to in writing, software
11+
* distributed under the License is distributed on an "AS IS" BASIS,
12+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13+
* See the License for the specific language governing permissions and
14+
* limitations under the License.
15+
*/
16+
17+
package org.springframework.boot.configurationsample.lombok;
18+
19+
import lombok.Data;
20+
21+
/**
22+
* Lombok POJO for use with samples.
23+
*
24+
* @author Stephane Nicoll
25+
*/
26+
@Data
27+
public class SimpleLombokPojo {
28+
29+
private int value;
30+
31+
}

‎spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/specific/InnerClassProperties.java

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
/*
2-
* Copyright 2012-2014 the original author or authors.
2+
* Copyright 2012-2015 the original author or authors.
33
*
44
* Licensed under the Apache License, Version 2.0 (the "License");
55
* you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
2020
import org.springframework.boot.configurationsample.NestedConfigurationProperty;
2121

2222
/**
23-
* Demonstrate the auto-detection of a inner config classes.
23+
* Demonstrate the auto-detection of inner config classes.
2424
*
2525
* @author Stephane Nicoll
2626
*/

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