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Generate meta-data for nested Lombok types

Browse Source 
Closes gh-4397
pull/4844/head
Stephane Nicoll 9 years ago
parent 8ede966708
commit ae13082e0d
5 changed files with 160 additions and 17 deletions
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53
spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessor.java
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@ -176,8 +176,9 @@ public class ConfigurationMetadataAnnotationProcessor extends AbstractProcessor
TypeElementMembers members = new TypeElementMembers(this.processingEnv, element);
Map<String, Object> fieldValues = getFieldValues(element);
processSimpleTypes(prefix, element, members, fieldValues);
processLombokTypes(prefix, element, members, fieldValues);
processSimpleLombokTypes(prefix, element, members, fieldValues);
processNestedTypes(prefix, element, members);
processNestedLombokTypes(prefix, element, members);
}
private Map<String, Object> getFieldValues(TypeElement element) {
@ -218,7 +219,7 @@ public class ConfigurationMetadataAnnotationProcessor extends AbstractProcessor
}
}
private void processLombokTypes(String prefix, TypeElement element,
private void processSimpleLombokTypes(String prefix, TypeElement element,
TypeElementMembers members, Map<String, Object> fieldValues) {
for (Map.Entry<String, VariableElement> entry : members.getFields().entrySet()) {
String name = entry.getKey();
@ -247,19 +248,6 @@ public class ConfigurationMetadataAnnotationProcessor extends AbstractProcessor
}
}
private boolean isLombokField(VariableElement field, TypeElement element) {
return hasAnnotation(field, LOMBOK_GETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_GETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION);
}
private boolean hasLombokSetter(VariableElement field, TypeElement element) {
return !field.getModifiers().contains(Modifier.FINAL)
&& (hasAnnotation(field, LOMBOK_SETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_SETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION));
}
private void processNestedTypes(String prefix, TypeElement element,
TypeElementMembers members) {
for (Map.Entry<String, ExecutableElement> entry : members.getPublicGetters()
@ -283,6 +271,41 @@ public class ConfigurationMetadataAnnotationProcessor extends AbstractProcessor
}
}
private void processNestedLombokTypes(String prefix, TypeElement element,
TypeElementMembers members) {
for (Map.Entry<String, VariableElement> entry : members.getFields().entrySet()) {
String name = entry.getKey();
VariableElement field = entry.getValue();
if (!isLombokField(field, element)) {
continue;
}
Element returnType = this.processingEnv.getTypeUtils()
.asElement(field.asType());
boolean isNested = isNested(returnType, field, element);
if (returnType != null && returnType instanceof TypeElement
&& isNested) {
String nestedPrefix = ConfigurationMetadata.nestedPrefix(prefix, name);
this.metadataCollector.add(ItemMetadata.newGroup(nestedPrefix,
this.typeUtils.getType(returnType),
this.typeUtils.getType(element), null));
processTypeElement(nestedPrefix, (TypeElement) returnType);
}
}
}
private boolean isLombokField(VariableElement field, TypeElement element) {
return hasAnnotation(field, LOMBOK_GETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_GETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION);
}
private boolean hasLombokSetter(VariableElement field, TypeElement element) {
return !field.getModifiers().contains(Modifier.FINAL)
&& (hasAnnotation(field, LOMBOK_SETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_SETTER_ANNOTATION)
|| hasAnnotation(element, LOMBOK_DATA_ANNOTATION));
}
private boolean isNested(Element returnType, VariableElement field,
TypeElement element) {
if (hasAnnotation(field, nestedConfigurationPropertyAnnotation())) {

28
spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessorTests.java
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@ -32,8 +32,10 @@ import org.springframework.boot.configurationsample.incremental.BarProperties;
import org.springframework.boot.configurationsample.incremental.FooProperties;
import org.springframework.boot.configurationsample.incremental.RenamedBarProperties;
import org.springframework.boot.configurationsample.lombok.LombokExplicitProperties;
import org.springframework.boot.configurationsample.lombok.LombokInnerClassProperties;
import org.springframework.boot.configurationsample.lombok.LombokSimpleDataProperties;
import org.springframework.boot.configurationsample.lombok.LombokSimpleProperties;
import org.springframework.boot.configurationsample.lombok.SimpleLombokPojo;
import org.springframework.boot.configurationsample.method.EmptyTypeMethodConfig;
import org.springframework.boot.configurationsample.method.InvalidMethodConfig;
import org.springframework.boot.configurationsample.method.MethodAndClassConfig;
@ -300,6 +302,32 @@ public class ConfigurationMetadataAnnotationProcessorTests {
"explicit");
}
@Test
public void lombokInnerClassProperties() throws Exception {
ConfigurationMetadata metadata = compile(LombokInnerClassProperties.class);
assertThat(metadata,
containsGroup("config").fromSource(LombokInnerClassProperties.class));
assertThat(metadata,
containsGroup("config.first").ofType(LombokInnerClassProperties.Foo.class)
.fromSource(LombokInnerClassProperties.class));
assertThat(metadata, containsProperty("config.first.name"));
assertThat(metadata, containsProperty("config.first.bar.name"));
assertThat(metadata,
containsGroup("config.second", LombokInnerClassProperties.Foo.class)
.fromSource(LombokInnerClassProperties.class));
assertThat(metadata, containsProperty("config.second.name"));
assertThat(metadata, containsProperty("config.second.bar.name"));
assertThat(metadata, containsGroup("config.third").ofType(SimpleLombokPojo.class)
.fromSource(LombokInnerClassProperties.class));
// For some reason the annotation processor resolves a type for SimpleLombokPojo that
// is resolved (compiled) and the source annotations are gone. Because we don't see the
// @Data annotation anymore, no field is harvested. What is crazy is that a sample project
// works fine so this seem to be related to the unit test environment for some reason.
//assertThat(metadata, containsProperty("config.third.value"));
assertThat(metadata, containsProperty("config.fourth"));
assertThat(metadata, not(containsGroup("config.fourth")));
}
@Test
public void mergingOfAdditionalMetadata() throws Exception {
File metaInfFolder = new File(this.compiler.getOutputLocation(), "META-INF");

61
spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/lombok/LombokInnerClassProperties.java
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@ -0,0 +1,61 @@
/*
* 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.
* 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.configurationsample.lombok;
import lombok.Data;
import org.springframework.boot.configurationsample.ConfigurationProperties;
import org.springframework.boot.configurationsample.NestedConfigurationProperty;
/**
* Demonstrate the auto-detection of inner config classes using Lombok.
*
* @author Stephane Nicoll
*/
@Data
@ConfigurationProperties(prefix = "config")
public class LombokInnerClassProperties {
private final Foo first = new Foo();
private Foo second = new Foo();
@NestedConfigurationProperty
private final SimpleLombokPojo third = new SimpleLombokPojo();
private Fourth fourth;
@Data
public static class Foo {
private String name;
private final Bar bar = new Bar();
@Data
public static class Bar {
private String name;
}
}
public enum Fourth {
YES, NO
}
}

31
spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/lombok/SimpleLombokPojo.java
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@ -0,0 +1,31 @@
/*
* 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.
* 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.configurationsample.lombok;
import lombok.Data;
/**
* Lombok POJO for use with samples.
*
* @author Stephane Nicoll
*/
@Data
public class SimpleLombokPojo {
private int value;
}

4
spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationsample/specific/InnerClassProperties.java
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@ -1,5 +1,5 @@
/*
* 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.
@ -20,7 +20,7 @@ import org.springframework.boot.configurationsample.ConfigurationProperties;
import org.springframework.boot.configurationsample.NestedConfigurationProperty;
/**
* Demonstrate the auto-detection of a inner config classes.
* Demonstrate the auto-detection of inner config classes.
*
* @author Stephane Nicoll
*/

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