/*
* Copyright 2004-2005 Graeme Rocher
*
* 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.grails.spring;
import groovy.lang.GroovyObject;
import groovy.lang.GroovySystem;
import groovy.lang.MetaClass;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springframework.beans.BeansException;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.support.GenericBeanDefinition;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.ui.context.Theme;
import org.springframework.ui.context.ThemeSource;
import org.springframework.ui.context.support.UiApplicationContextUtils;
/**
* An ApplicationContext that extends StaticApplicationContext and implements GroovyObject such that
* beans can be retrieved with the dot de-reference syntax instead of using getBean('name').
*
* @author Graeme Rocher
* @since 1.0
*/
public class GrailsApplicationContext extends GenericApplicationContext implements GroovyObject {
protected MetaClass metaClass;
private BeanWrapper ctxBean = new BeanWrapperImpl(this);
private ThemeSource themeSource;
private static final String GRAILS_ENVIRONMENT_BEAN_NAME = "springEnvironment";
public GrailsApplicationContext(DefaultListableBeanFactory defaultListableBeanFactory) {
super(defaultListableBeanFactory);
metaClass = GroovySystem.getMetaClassRegistry().getMetaClass(getClass());
}
public GrailsApplicationContext(DefaultListableBeanFactory defaultListableBeanFactory, ApplicationContext applicationContext) {
super(defaultListableBeanFactory, applicationContext);
metaClass = GroovySystem.getMetaClassRegistry().getMetaClass(getClass());
}
public GrailsApplicationContext(org.springframework.context.ApplicationContext parent) throws org.springframework.beans.BeansException {
super(parent);
metaClass = GroovySystem.getMetaClassRegistry().getMetaClass(getClass());
}
public GrailsApplicationContext() throws org.springframework.beans.BeansException {
metaClass = GroovySystem.getMetaClassRegistry().getMetaClass(getClass());
}
@Override
public boolean containsBeanDefinition(String beanName) {
if(super.containsBeanDefinition(beanName)) {
return true;
} else if (getParent() != null && "grailsApplication".equals(beanName)) {
return getParent().containsBeanDefinition(beanName);
} else {
return false;
}
}
public MetaClass getMetaClass() {
return metaClass;
}
public Object getProperty(String property) {
if (containsBean(property)) {
return getBean(property);
}
if (ctxBean.isReadableProperty(property)) {
return ctxBean.getPropertyValue(property);
}
return null;
}
public Object invokeMethod(String name, Object args) {
return metaClass.invokeMethod(this, name, args);
}
public void setMetaClass(MetaClass metaClass) {
this.metaClass = metaClass;
}
/**
* Initialize the theme capability.
*/
@Override
protected void onRefresh() {
themeSource = UiApplicationContextUtils.initThemeSource(this);
}
public Theme getTheme(String themeName) {
return themeSource.getTheme(themeName);
}
public void setProperty(String property, Object newValue) {
if (newValue instanceof BeanDefinition) {
if (containsBean(property)) {
removeBeanDefinition(property);
}
registerBeanDefinition(property, (BeanDefinition)newValue);
}
else {
metaClass.setProperty(this, property, newValue);
}
}
/**
* Register a singleton bean with the underlying bean factory.
* <p>For more advanced needs, register with the underlying BeanFactory directly.
* @see #getDefaultListableBeanFactory
*/
public void registerSingleton(String name, Class<?> clazz) throws BeansException {
GenericBeanDefinition bd = new GenericBeanDefinition();
bd.setBeanClass(clazz);
getDefaultListableBeanFactory().registerBeanDefinition(name, bd);
}
/**
* Register a singleton bean with the underlying bean factory.
* <p>For more advanced needs, register with the underlying BeanFactory directly.
* @see #getDefaultListableBeanFactory
*/
public void registerSingleton(String name, Class<?> clazz, MutablePropertyValues pvs) throws BeansException {
GenericBeanDefinition bd = new GenericBeanDefinition();
bd.setBeanClass(clazz);
bd.setPropertyValues(pvs);
getDefaultListableBeanFactory().registerBeanDefinition(name, bd);
}
/**
* Register a prototype bean with the underlying bean factory.
* <p>For more advanced needs, register with the underlying BeanFactory directly.
* @see #getDefaultListableBeanFactory
*/
public void registerPrototype(String name, Class<?> clazz) throws BeansException {
GenericBeanDefinition bd = new GenericBeanDefinition();
bd.setScope(GenericBeanDefinition.SCOPE_PROTOTYPE);
bd.setBeanClass(clazz);
getDefaultListableBeanFactory().registerBeanDefinition(name, bd);
}
/**
* Register a prototype bean with the underlying bean factory.
* <p>For more advanced needs, register with the underlying BeanFactory directly.
* @see #getDefaultListableBeanFactory
*/
public void registerPrototype(String name, Class<?> clazz, MutablePropertyValues pvs) throws BeansException {
GenericBeanDefinition bd = new GenericBeanDefinition();
bd.setScope(GenericBeanDefinition.SCOPE_PROTOTYPE);
bd.setBeanClass(clazz);
bd.setPropertyValues(pvs);
getDefaultListableBeanFactory().registerBeanDefinition(name, bd);
}
@Override
protected void prepareBeanFactory(ConfigurableListableBeanFactory beanFactory) {
super.prepareBeanFactory(beanFactory);
// workaround for GRAILS-7851, until Spring allows the environment bean name to be configurable
((DefaultListableBeanFactory)beanFactory).destroySingleton(ENVIRONMENT_BEAN_NAME);
beanFactory.registerSingleton(GRAILS_ENVIRONMENT_BEAN_NAME,getEnvironment());
}
@Override
protected void assertBeanFactoryActive() {
// no-op to prevent excessive synchronization caused by SPR-10307 change
}
}