/*
* Copyright 2009 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.api.internal.plugins;
import groovy.lang.MissingMethodException;
import groovy.lang.MissingPropertyException;
import org.gradle.api.Action;
import org.gradle.api.GradleException;
import org.gradle.api.internal.BeanDynamicObject;
import org.gradle.api.internal.DynamicObject;
import org.gradle.api.plugins.Convention;
import org.gradle.api.plugins.ExtraPropertiesExtension;
import org.gradle.internal.reflect.Instantiator;
import java.util.*;
public class DefaultConvention implements Convention, ExtensionContainerInternal {
private final Map<String, Object> plugins = new LinkedHashMap<String, Object>();
private final DefaultConvention.ExtensionsDynamicObject extensionsDynamicObject = new ExtensionsDynamicObject();
private final ExtensionsStorage extensionsStorage = new ExtensionsStorage();
private final ExtraPropertiesExtension extraProperties = new DefaultExtraPropertiesExtension();
private final Instantiator instantiator;
/**
* This method should not be used in runtime code proper as means that the convention cannot create
* dynamic extensions.
*
* It's here for backwards compatibility with our tests and for convenience.
*
* @see #DefaultConvention(org.gradle.internal.reflect.Instantiator)
*/
public DefaultConvention() {
this(null);
}
public DefaultConvention(Instantiator instantiator) {
this.instantiator = instantiator;
add(ExtraPropertiesExtension.EXTENSION_NAME, extraProperties);
}
public Map<String, Object> getPlugins() {
return plugins;
}
public DynamicObject getExtensionsAsDynamicObject() {
return extensionsDynamicObject;
}
private Instantiator getInstantiator() {
if (instantiator == null) {
throw new GradleException("request for DefaultConvention.instantiator when the object was constructed without a convention");
}
return instantiator;
}
public <T> T getPlugin(Class<T> type) {
T value = findPlugin(type);
if (value == null) {
throw new IllegalStateException(String.format("Could not find any convention object of type %s.",
type.getSimpleName()));
}
return value;
}
public <T> T findPlugin(Class<T> type) throws IllegalStateException {
List<T> values = new ArrayList<T>();
for (Object object : plugins.values()) {
if (type.isInstance(object)) {
values.add(type.cast(object));
}
}
if (values.isEmpty()) {
return null;
}
if (values.size() > 1) {
throw new IllegalStateException(String.format("Found multiple convention objects of type %s.",
type.getSimpleName()));
}
return values.get(0);
}
public void add(String name, Object extension) {
if (extension instanceof Class) {
create(name, (Class<?>) extension);
} else {
extensionsStorage.add(name, extension);
}
}
public <T> T create(String name, Class<T> type, Object... constructionArguments) {
T instance = getInstantiator().newInstance(type, constructionArguments);
add(name, instance);
return instance;
}
public ExtraPropertiesExtension getExtraProperties() {
return extraProperties;
}
public <T> T getByType(Class<T> type) {
return extensionsStorage.getByType(type);
}
public <T> T findByType(Class<T> type) {
return extensionsStorage.findByType(type);
}
public Object getByName(String name) {
return extensionsStorage.getByName(name);
}
public Object findByName(String name) {
return extensionsStorage.findByName(name);
}
public <T> void configure(Class<T> type, Action<? super T> action) {
extensionsStorage.configureExtension(type, action);
}
public Map<String, Object> getAsMap() {
return extensionsStorage.getAsMap();
}
public Object propertyMissing(String name) {
return getByName(name);
}
public void propertyMissing(String name, Object value) {
extensionsStorage.checkExtensionIsNotReassigned(name);
add(name, value);
}
private class ExtensionsDynamicObject implements DynamicObject {
public boolean hasProperty(String name) {
if (extensionsStorage.hasExtension(name)) {
return true;
}
for (Object object : plugins.values()) {
if (new BeanDynamicObject(object).hasProperty(name)) {
return true;
}
}
return false;
}
public Map<String, Object> getProperties() {
Map<String, Object> properties = new HashMap<String, Object>();
List<Object> reverseOrder = new ArrayList<Object>(plugins.values());
Collections.reverse(reverseOrder);
for (Object object : reverseOrder) {
properties.putAll(new BeanDynamicObject(object).getProperties());
}
properties.putAll(extensionsStorage.getAsMap());
return properties;
}
public Object getProperty(String name) throws MissingPropertyException {
if (extensionsStorage.hasExtension(name)) {
return extensionsStorage.getByName(name);
}
for (Object object : plugins.values()) {
DynamicObject dynamicObject = new BeanDynamicObject(object);
if (dynamicObject.hasProperty(name)) {
return dynamicObject.getProperty(name);
}
}
throw new MissingPropertyException(name, Convention.class);
}
public Object propertyMissing(String name) {
return getProperty(name);
}
public void setProperty(String name, Object value) {
extensionsStorage.checkExtensionIsNotReassigned(name);
for (Object object : plugins.values()) {
BeanDynamicObject dynamicObject = new BeanDynamicObject(object);
if (dynamicObject.hasProperty(name)) {
dynamicObject.setProperty(name, value);
return;
}
}
throw new MissingPropertyException(name, Convention.class);
}
public void propertyMissing(String name, Object value) {
setProperty(name, value);
}
public Object invokeMethod(String name, Object... args) {
if (extensionsStorage.isConfigureExtensionMethod(name, args)) {
return extensionsStorage.configureExtension(name, args);
}
for (Object object : plugins.values()) {
BeanDynamicObject dynamicObject = new BeanDynamicObject(object);
if (dynamicObject.hasMethod(name, args)) {
return dynamicObject.invokeMethod(name, args);
}
}
throw new MissingMethodException(name, Convention.class, args);
}
public boolean isMayImplementMissingMethods() {
return false;
}
public boolean isMayImplementMissingProperties() {
return false;
}
public Object methodMissing(String name, Object args) {
return invokeMethod(name, (Object[])args);
}
public boolean hasMethod(String name, Object... args) {
if (extensionsStorage.isConfigureExtensionMethod(name, args)) {
return true;
}
for (Object object : plugins.values()) {
BeanDynamicObject dynamicObject = new BeanDynamicObject(object);
if (dynamicObject.hasMethod(name, args)) {
return true;
}
}
return false;
}
}
}