/*
* Copyright 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.gradle.platform.base.internal;
import com.google.common.collect.ImmutableSet;
import org.gradle.api.Named;
import org.gradle.api.Nullable;
import org.gradle.internal.reflect.PropertyAccessorType;
import org.gradle.model.internal.manage.schema.ModelProperty;
import org.gradle.model.internal.manage.schema.extract.InvalidManagedModelElementTypeException;
import org.gradle.model.internal.manage.schema.extract.ModelPropertyExtractionResult;
import org.gradle.model.internal.manage.schema.extract.ModelSchemaAspectExtractionResult;
import org.gradle.model.internal.manage.schema.extract.ModelSchemaAspectExtractionStrategy;
import org.gradle.model.internal.manage.schema.extract.ModelSchemaExtractionContext;
import org.gradle.model.internal.manage.schema.extract.PropertyAccessorExtractionContext;
import org.gradle.platform.base.Variant;
import java.util.List;
public class VariantAspectExtractionStrategy implements ModelSchemaAspectExtractionStrategy {
@Nullable
@Override
public ModelSchemaAspectExtractionResult extract(ModelSchemaExtractionContext<?> extractionContext, final List<ModelPropertyExtractionResult<?>> propertyResults) {
ImmutableSet.Builder<ModelProperty<?>> dimensionsBuilder = ImmutableSet.builder();
for (ModelPropertyExtractionResult<?> propertyResult : propertyResults) {
ModelProperty<?> property = propertyResult.getProperty();
for (PropertyAccessorExtractionContext accessor : propertyResult.getAccessors()) {
if (accessor.isAnnotationPresent(Variant.class)) {
if (accessor.getAccessorType() == PropertyAccessorType.SETTER) {
throw invalidProperty(extractionContext, property, "@Variant annotation is only allowed on getter methods");
}
Class<?> propertyType = property.getType().getRawClass();
if (!String.class.equals(propertyType) && !Named.class.isAssignableFrom(propertyType)) {
throw invalidProperty(extractionContext, property, String.format("@Variant annotation only allowed for properties of type String and %s, but property has type %s", Named.class.getName(), propertyType.getName()));
}
dimensionsBuilder.add(property);
}
}
}
ImmutableSet<ModelProperty<?>> dimensions = dimensionsBuilder.build();
if (dimensions.isEmpty()) {
return null;
}
return new ModelSchemaAspectExtractionResult(new VariantAspect(dimensions));
}
protected InvalidManagedModelElementTypeException invalidProperty(ModelSchemaExtractionContext<?> extractionContext, ModelProperty<?> property, String message) {
return new InvalidManagedModelElementTypeException(extractionContext, String.format("%s (invalid property: %s)", message, property.getName()));
}
}