/*
* Copyright 2002-2009 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.springframework.beans.factory.xml;
import java.util.Stack;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.parsing.ComponentDefinition;
import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
/**
* Context that gets passed along a bean definition parsing process,
* encapsulating all relevant configuration as well as state.
* Nested inside an {@link XmlReaderContext}.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 2.0
* @see XmlReaderContext
* @see BeanDefinitionParserDelegate
*/
public final class ParserContext {
private final XmlReaderContext readerContext;
private final BeanDefinitionParserDelegate delegate;
private BeanDefinition containingBeanDefinition;
private final Stack<ComponentDefinition> containingComponents = new Stack<ComponentDefinition>();
public ParserContext(XmlReaderContext readerContext, BeanDefinitionParserDelegate delegate) {
this.readerContext = readerContext;
this.delegate = delegate;
}
public ParserContext(XmlReaderContext readerContext, BeanDefinitionParserDelegate delegate,
BeanDefinition containingBeanDefinition) {
this.readerContext = readerContext;
this.delegate = delegate;
this.containingBeanDefinition = containingBeanDefinition;
}
public final XmlReaderContext getReaderContext() {
return this.readerContext;
}
public final BeanDefinitionRegistry getRegistry() {
return this.readerContext.getRegistry();
}
public final BeanDefinitionParserDelegate getDelegate() {
return this.delegate;
}
public final BeanDefinition getContainingBeanDefinition() {
return this.containingBeanDefinition;
}
public final boolean isNested() {
return (this.containingBeanDefinition != null);
}
public boolean isDefaultLazyInit() {
return BeanDefinitionParserDelegate.TRUE_VALUE.equals(this.delegate.getDefaults().getLazyInit());
}
public Object extractSource(Object sourceCandidate) {
return this.readerContext.extractSource(sourceCandidate);
}
public CompositeComponentDefinition getContainingComponent() {
return (!this.containingComponents.isEmpty() ?
(CompositeComponentDefinition) this.containingComponents.lastElement() : null);
}
public void pushContainingComponent(CompositeComponentDefinition containingComponent) {
this.containingComponents.push(containingComponent);
}
public CompositeComponentDefinition popContainingComponent() {
return (CompositeComponentDefinition) this.containingComponents.pop();
}
public void popAndRegisterContainingComponent() {
registerComponent(popContainingComponent());
}
public void registerComponent(ComponentDefinition component) {
CompositeComponentDefinition containingComponent = getContainingComponent();
if (containingComponent != null) {
containingComponent.addNestedComponent(component);
}
else {
this.readerContext.fireComponentRegistered(component);
}
}
public void registerBeanComponent(BeanComponentDefinition component) {
BeanDefinitionReaderUtils.registerBeanDefinition(component, getRegistry());
registerComponent(component);
}
}
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