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Drools and jBPM integration for Spring.
/*
* Copyright 2010 JBoss Inc
*
* 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.drools.container.spring.namespace;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
import org.drools.container.spring.beans.GridBeanFactory;
import org.drools.container.spring.beans.GridBeanFactory.SocketServiceConfiguration;
/*
import org.drools.grid.io.AcceptorFactoryService;
import org.drools.grid.remote.mina.MinaAcceptorFactoryService;
import org.drools.grid.service.directory.impl.JpaWhitePages;
import org.drools.grid.service.directory.impl.WhitePagesImpl;
*/
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class GridDefinitionParser extends AbstractBeanDefinitionParser {
private static final String EMF_ATTRIBUTE = "entity-manager-factory";
protected AbstractBeanDefinition parseInternal(Element element,
ParserContext parserContext) {
BeanDefinitionBuilder factory = BeanDefinitionBuilder.rootBeanDefinition( GridBeanFactory.class );
// String id = element.getAttribute( "id" );
// factory.addPropertyValue( "id",
// id );
//
// for ( int i = 0, length = element.getChildNodes().getLength(); i < length; i++ ) {
// Node n = element.getChildNodes().item( i );
// if ( n instanceof Element ) {
// Element e = (Element) n;
//
// if ( "core-services".equals( e.getLocalName() ) ) {
// String ref = e.getAttribute( "ref" );
// Element nestedElm = getFirstElement( e.getChildNodes() );
//
// if ( StringUtils.hasText( ref ) ) {
// factory.addPropertyReference( "coreServices",
// ref );
// } else if ( nestedElm != null ) {
// factory.addPropertyValue( "coreServices",
// parserContext.getDelegate().parsePropertySubElement( nestedElm,
// null,
// null ) );
// } else {
// throw new IllegalArgumentException( "set-global must either specify a 'ref' attribute or have a nested bean" );
// }
// } else if ( "whitepages".equals( e.getLocalName() ) ) {
// Element persistenceElm = DomUtils.getChildElementByTagName( e,
// "jpa-persistence" );
// if ( persistenceElm != null ) {
// BeanDefinitionBuilder beanBuilder = BeanDefinitionBuilder.genericBeanDefinition( JpaWhitePages.class );
//
// Element emf = DomUtils.getChildElementByTagName( persistenceElm,
// EMF_ATTRIBUTE );
// String ref = emf.getAttribute( "ref" );
//
// beanBuilder.addConstructorArgReference( ref );
// factory.addPropertyValue( "whitePages",
// beanBuilder.getBeanDefinition() );
// } else {
// String ref = e.getAttribute( "ref" );
// Element nestedElm = getFirstElement( e.getChildNodes() );
//
// if ( StringUtils.hasText( ref ) ) {
// factory.addPropertyReference( "whitePages",
// ref );
// } else if ( nestedElm != null ) {
// factory.addPropertyValue( "whitePages",
// parserContext.getDelegate().parsePropertySubElement( nestedElm,
// null,
// null ) );
// } else {
// factory.addPropertyValue( "whitePages",
// new WhitePagesImpl() );
// }
// }
// } else if ( "socket-service".equals( e.getLocalName() ) ) {
// String acceptor = e.getAttribute( "acceptor" );
// String ip = e.getAttribute( "ip" );
//
// AcceptorFactoryService acc = null;
// if ( StringUtils.hasText( acceptor ) ) {
// if ( "mina".equals( acceptor ) ) {
// acc = new MinaAcceptorFactoryService();
// }
// }
//
// if ( acc == null ) {
// acc = new MinaAcceptorFactoryService();
// }
//
// if ( !StringUtils.hasText( ip ) ) {
// try {
// ip = InetAddress.getLocalHost().getHostAddress();
// } catch ( UnknownHostException e1 ) {
// throw new RuntimeException( "socket-service did not specify an ip address and one could not be determined",
// e1 );
// }
// }
//
// if ( !StringUtils.hasText( ip ) ) {
// throw new RuntimeException( "socket-service did not specify an ip address and one could not be determined" );
// }
//
// BeanDefinitionBuilder beanBuilder = BeanDefinitionBuilder.genericBeanDefinition( SocketServiceConfiguration.class );
// beanBuilder.addPropertyValue( "ip",
// ip );
// beanBuilder.addPropertyValue( "acceptor",
// acceptor );
//
// //e.getChildNodes()
// List services = new ArrayList();
// for ( int j = 0, serviceLength = e.getChildNodes().getLength(); j < serviceLength; j++ ) {
// Node e2 = e.getChildNodes().item( j );
// if ( e2 instanceof Element && "service".equals( ((Element) e2).getLocalName() ) ) {
// Element se = (Element) e2;
// String name = se.getAttribute( "name" );
// String port = se.getAttribute( "port" );
// services.add( new String[]{name, port} );
// }
// }
// beanBuilder.addPropertyValue( "services",
// services );
// factory.addPropertyValue( "socketServiceConfiguration",
// beanBuilder.getBeanDefinition() );
// }
//
// }
// }
return factory.getBeanDefinition();
}
public void emptyAttributeCheck(final String element,
final String attributeName,
final String attribute) {
if ( attribute == null || attribute.trim().length() == 0 ) {
throw new IllegalArgumentException( "<" + element + "> requires a '" + attributeName + "' attribute" );
}
}
private Element getFirstElement(NodeList list) {
for ( int j = 0, lengthj = list.getLength(); j < lengthj; j++ ) {
if ( list.item( j ) instanceof Element ) {
return (Element) list.item( j );
}
}
return null;
}
}