/*
* 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.model.internal.manage.schema.extract;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSetMultimap;
import com.google.common.collect.Multimap;
import org.gradle.internal.BiAction;
import org.gradle.internal.Cast;
import org.gradle.model.ModelSet;
import org.gradle.model.internal.core.*;
import org.gradle.model.internal.core.rule.describe.ModelRuleDescriptor;
import org.gradle.model.internal.inspect.ManagedChildNodeCreatorStrategy;
import org.gradle.model.internal.manage.schema.CollectionSchema;
import org.gradle.model.internal.type.ModelType;
import org.gradle.model.internal.type.ModelTypes;
public class ModelSetNodeInitializerExtractionStrategy extends CollectionNodeInitializerExtractionSupport {
private static final ModelType<ModelSet<?>> MODEL_SET_MODEL_TYPE = new ModelType<ModelSet<?>>() {
};
@Override
protected <T, E> NodeInitializer extractNodeInitializer(CollectionSchema<T, E> schema, NodeInitializerContext<T> context) {
if (MODEL_SET_MODEL_TYPE.isAssignableFrom(schema.getType())) {
return new ModelSetNodeInitializer<T, E>(schema);
}
return null;
}
@Override
public Iterable<ModelType<?>> supportedTypes() {
return ImmutableList.<ModelType<?>>of(MODEL_SET_MODEL_TYPE);
}
private static class ModelSetModelViewFactory<T> implements ModelViewFactory<ModelSet<T>> {
private final ModelType<T> elementType;
public ModelSetModelViewFactory(ModelType<T> elementType) {
this.elementType = elementType;
}
@Override
public ModelView<ModelSet<T>> toView(MutableModelNode modelNode, ModelRuleDescriptor ruleDescriptor, boolean mutable) {
ModelType<ModelSet<T>> setType = ModelTypes.modelSet(elementType);
DefaultModelViewState state = new DefaultModelViewState(modelNode.getPath(), setType, ruleDescriptor, mutable, !mutable);
ChildNodeInitializerStrategy<T> childStrategy = Cast.uncheckedCast(modelNode.getPrivateData(ChildNodeInitializerStrategy.class));
NodeBackedModelSet<T> set = new NodeBackedModelSet<T>(setType, elementType, ruleDescriptor, modelNode, state, childStrategy);
return InstanceModelView.of(modelNode.getPath(), setType, set, state.closer());
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
ModelSetModelViewFactory<?> that = (ModelSetModelViewFactory<?>) o;
return elementType.equals(that.elementType);
}
@Override
public int hashCode() {
return elementType.hashCode();
}
}
private static class ModelSetNodeInitializer<T, E> implements NodeInitializer {
private final CollectionSchema<T, E> schema;
public ModelSetNodeInitializer(CollectionSchema<T, E> schema) {
this.schema = schema;
}
@Override
public Multimap<ModelActionRole, ModelAction> getActions(ModelReference<?> subject, ModelRuleDescriptor descriptor) {
return ImmutableSetMultimap.<ModelActionRole, ModelAction>builder()
.put(ModelActionRole.Discover, AddProjectionsAction.of(subject, descriptor,
TypedModelProjection.of(
ModelTypes.modelSet(schema.getElementType()),
new ModelSetModelViewFactory<E>(schema.getElementType())
)
))
.put(ModelActionRole.Create, DirectNodeInputUsingModelAction.of(subject, descriptor,
ModelReference.of(NodeInitializerRegistry.class),
new BiAction<MutableModelNode, NodeInitializerRegistry>() {
@Override
public void execute(MutableModelNode modelNode, NodeInitializerRegistry nodeInitializerRegistry) {
ChildNodeInitializerStrategy<T> childStrategy = new ManagedChildNodeCreatorStrategy<T>(nodeInitializerRegistry);
modelNode.setPrivateData(ChildNodeInitializerStrategy.class, childStrategy);
}
}
))
.build();
}
}
}