/*
* Copyright 2014 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.dsl.internal;
import groovy.lang.Closure;
import groovy.lang.GroovyObjectSupport;
import groovy.lang.MissingMethodException;
import groovy.lang.MissingPropertyException;
import net.jcip.annotations.NotThreadSafe;
import org.gradle.api.GradleException;
import org.gradle.api.internal.ClosureBackedAction;
import org.gradle.model.internal.core.Inputs;
import org.gradle.model.internal.core.ModelMutator;
import org.gradle.model.internal.core.ModelPath;
import org.gradle.model.internal.core.ModelReference;
import org.gradle.model.internal.core.rule.describe.ModelRuleDescriptor;
import org.gradle.model.internal.core.rule.describe.SimpleModelRuleDescriptor;
import org.gradle.model.internal.registry.ModelRegistry;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
@NotThreadSafe
public class NonTransformedModelDslBacking extends GroovyObjectSupport {
// TODO include link to documentation giving more explanation of what's going on here.
public static final String ATTEMPTED_INPUT_SYNTAX_USED_MESSAGE = "$() syntax cannot be used when model {} block is not a top level statement in the script";
private final ModelPath modelPath;
private final ModelRegistry modelRegistry;
private AtomicBoolean executingDsl;
public NonTransformedModelDslBacking(ModelRegistry modelRegistry) {
this(new AtomicBoolean(), null, modelRegistry);
}
private NonTransformedModelDslBacking(AtomicBoolean executingDsl, ModelPath modelPath, ModelRegistry modelRegistry) {
this.executingDsl = executingDsl;
this.modelPath = modelPath;
this.modelRegistry = modelRegistry;
}
private NonTransformedModelDslBacking getChildPath(String name) {
ModelPath path = modelPath == null ? ModelPath.path(name) : modelPath.child(name);
return new NonTransformedModelDslBacking(executingDsl, path, modelRegistry);
}
private void registerConfigurationAction(final Closure<?> action) {
modelRegistry.mutate(new ModelMutator<Object>() {
public ModelReference<Object> getSubject() {
return ModelReference.untyped(modelPath);
}
public void mutate(Object object, Inputs inputs) {
new ClosureBackedAction<Object>(action).execute(object);
}
public ModelRuleDescriptor getDescriptor() {
return new SimpleModelRuleDescriptor("model." + modelPath);
}
public List<ModelReference<?>> getInputs() {
return Collections.emptyList();
}
});
}
public void configure(Closure<?> action) {
executingDsl.set(true);
try {
new ClosureBackedAction<Object>(action).execute(this);
} finally {
executingDsl.set(false);
}
}
public NonTransformedModelDslBacking propertyMissing(String name) {
if (!executingDsl.get()) {
throw new MissingPropertyException(name, getClass());
}
return getChildPath(name);
}
public Void methodMissing(String name, Object argsObj) {
Object[] args = (Object[]) argsObj;
if (!executingDsl.get()) {
if (name.equals("$")) {
throw new GradleException(ATTEMPTED_INPUT_SYNTAX_USED_MESSAGE);
} else {
throw new MissingMethodException(name, getClass(), args);
}
} else {
if (args.length != 1 || !(args[0] instanceof Closure)) {
throw new MissingMethodException(name, getClass(), args);
} else {
Closure closure = (Closure) args[0];
getChildPath(name).registerConfigurationAction(closure);
return null;
}
}
}
}