/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.bval.xml;
import org.apache.bval.IntrospectorMetaBeanFactory;
import org.apache.bval.MetaBeanBuilder;
import org.apache.bval.MetaBeanFactory;
import org.apache.bval.model.MetaBean;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* Description: <br>
* User: roman.stumm<br>
* Date: 17.06.2010<br>
* Time: 10:10:46<br>
*/
public class XMLMetaBeanBuilder extends MetaBeanBuilder {
private XMLMetaBeanFactory xmlFactory;
public XMLMetaBeanBuilder(MetaBeanFactory[] factories) {
setFactories(factories);
}
public XMLMetaBeanBuilder() {
setFactories(new MetaBeanFactory[] { new IntrospectorMetaBeanFactory(), new XMLMetaBeanFactory() });
}
public void setFactories(MetaBeanFactory[] factories) {
super.setFactories(factories);
updateXmlFactory();
}
public void addLoader(XMLMetaBeanLoader loader) {
assertXmlFactory();
xmlFactory.addLoader(loader);
}
public MetaBean buildForId(String beanInfoId) throws Exception {
final XMLMetaBeanFactory.Visitor v;
assertXmlFactory();
xmlFactory.visitXMLBeanMeta(beanInfoId, v = new XMLMetaBeanFactory.Visitor() {
private MetaBean meta;
public MetaBean getMetaBean() {
return meta;
}
public void visit(XMLMetaBean xmlMeta, XMLMetaBeanInfos xmlInfos) throws Exception {
if (meta == null) {
meta = createMetaBean(xmlMeta);
}
xmlFactory.enrichMetaBean(meta, new XMLMetaBeanFactory.XMLResult(xmlMeta, xmlInfos));
}
});
if (v.getMetaBean() == null) {
throw new IllegalArgumentException("MetaBean " + beanInfoId + " not found");
}
return v.getMetaBean();
}
public Map<String, MetaBean> buildAll() throws Exception {
final Map<String, MetaBean> all = super.buildAll();
if (xmlFactory != null) {
xmlFactory.visitXMLBeanMeta(null, new XMLMetaBeanFactory.Visitor() {
public void visit(XMLMetaBean empty, XMLMetaBeanInfos xmlInfos) throws Exception {
if (xmlInfos.getBeans() == null)
return; // empty file, ignore
XMLMetaBeanFactory.XMLResult carrier = new XMLMetaBeanFactory.XMLResult(null, xmlInfos);
for (XMLMetaBean xmlMeta : xmlInfos.getBeans()) {
MetaBean meta = all.get(xmlMeta.getId());
if (meta == null) {
meta = createMetaBean(xmlMeta);
all.put(xmlMeta.getId(), meta);
}
carrier.xmlMeta = xmlMeta;
xmlFactory.enrichMetaBean(meta, carrier);
}
}
public MetaBean getMetaBean() {
return null; // do nothing
}
});
}
return all;
}
public Map<String, MetaBean> enrichCopies(Map<String, MetaBean> all, XMLMetaBeanInfos... infosArray)
throws Exception {
assertXmlFactory();
final Map<String, MetaBean> copies = new HashMap<String, MetaBean>(all.size());
boolean nothing = true;
XMLMetaBeanFactory.XMLResult carrier = new XMLMetaBeanFactory.XMLResult();
for (XMLMetaBeanInfos xmlMetaBeanInfos : infosArray) {
carrier.xmlInfos = xmlMetaBeanInfos;
if (xmlMetaBeanInfos == null)
continue;
try {
for (XMLMetaBean xmlMeta : xmlMetaBeanInfos.getBeans()) {
nothing = false;
MetaBean copy = copies.get(xmlMeta.getId());
if (copy == null) { // ist noch nicht kopiert
MetaBean meta = all.get(xmlMeta.getId());
if (meta == null) { // gibt es nicht
copy = createMetaBean(xmlMeta);
} else { // gibt es, jetzt kopieren
copy = meta.copy();
}
copies.put(xmlMeta.getId(), copy);
}
carrier.xmlMeta = xmlMeta;
xmlFactory.enrichMetaBean(copy, carrier);
}
} catch (IOException e) {
xmlFactory.handleLoadException(xmlMetaBeanInfos, e);
}
}
if (nothing)
return all;
for (Map.Entry<String, MetaBean> entry : all.entrySet()) {
/*
* alle unveraenderten werden AUCH KOPIERT (nur zwar nur, wegen
* potentieller CrossReferenzen durch Relationships)
*/
if (!copies.containsKey(entry.getKey())) {
if (entry.getValue().hasRelationships()) {
copies.put(entry.getKey(), (MetaBean) entry.getValue().copy());
} else { // no relationship: do not clone()
copies.put(entry.getKey(), entry.getValue());
}
}
}
return copies;
}
private MetaBean createMetaBean(XMLMetaBean xmlMeta) throws Exception {
return buildForClass(findLocalClass(xmlMeta.getImpl()));
}
private void updateXmlFactory() {
for (MetaBeanFactory each : getFactories()) {
if (each instanceof XMLMetaBeanFactory) { // use the first one!
xmlFactory = (XMLMetaBeanFactory) each;
return;
}
}
xmlFactory = null; // none
}
public XMLMetaBeanFactory getXmlFactory() {
return xmlFactory;
}
private void assertXmlFactory() {
if (xmlFactory == null) {
throw new IllegalStateException("no xmlFactory available");
}
}
}