/**
* 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.beans;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseConfiguration;
import org.drools.KnowledgeBaseFactoryService;
import org.drools.base.accumulators.AccumulateFunction;
import org.drools.base.evaluators.EvaluatorDefinition;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderErrors;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.KnowledgeBuilderFactoryService;
import org.drools.builder.ResourceType;
import org.drools.builder.conf.AccumulateFunctionOption;
import org.drools.builder.conf.EvaluatorOption;
import org.drools.builder.conf.impl.JaxbConfigurationImpl;
import org.drools.compiler.PackageBuilderConfiguration;
import org.drools.grid.GridNode;
import org.drools.grid.impl.GridNodeImpl;
import org.drools.impl.KnowledgeBaseImpl;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
public class KnowledgeBaseBeanFactory
implements
FactoryBean,
InitializingBean {
private KnowledgeBaseConfiguration conf;
private Map<String, AccumulateFunction> accumulateFunctions;
private Map<String, EvaluatorDefinition> evaluators;
private KnowledgeBase kbase;
private GridNode node;
private List<DroolsResourceAdapter> resources = Collections.emptyList();
public Object getObject() throws Exception {
return kbase;
}
public Class< ? extends KnowledgeBase> getObjectType() {
return KnowledgeBase.class;
}
public boolean isSingleton() {
return true;
}
public void afterPropertiesSet() throws Exception {
if ( this.node == null ) {
this.node = new GridNodeImpl();
// GenericConnection connection = new GridConnection();
// connection.addExecutionNode(new LocalNodeConnector());
// connection.addDirectoryNode(new LocalDirectoryConnector());
// this.node = connection.getExecutionNode();
}
PackageBuilderConfiguration kconf = (PackageBuilderConfiguration) KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
if ( this.accumulateFunctions != null && !this.accumulateFunctions.isEmpty() ) {
for ( Entry<String, AccumulateFunction> entry : this.accumulateFunctions.entrySet() ) {
kconf.setOption( AccumulateFunctionOption.get( entry.getKey(),
entry.getValue() ) );
}
}
if ( this.evaluators != null && !this.evaluators.isEmpty() ) {
for ( Entry<String, EvaluatorDefinition> entry : this.evaluators.entrySet() ) {
kconf.setOption( EvaluatorOption.get( entry.getKey(),
entry.getValue() ) );
}
}
KnowledgeBuilder kbuilder = node.get( KnowledgeBuilderFactoryService.class ).newKnowledgeBuilder( kconf );
if ( this.conf != null ) {
kbase = node.get( KnowledgeBaseFactoryService.class ).newKnowledgeBase( conf );
} else {
kbase = node.get( KnowledgeBaseFactoryService.class ).newKnowledgeBase();
}
List<JaxbConfigurationImpl> xsds = new ArrayList<JaxbConfigurationImpl>();
for ( DroolsResourceAdapter res : resources ) {
if ( res.getResourceType().equals( ResourceType.XSD ) ) {
xsds.add( (JaxbConfigurationImpl) res.getResourceConfiguration() );
}
if ( res.getResourceConfiguration() == null ) {
kbuilder.add( res.getDroolsResource(),
res.getResourceType() );
} else {
kbuilder.add( res.getDroolsResource(),
res.getResourceType(),
res.getResourceConfiguration() );
}
}
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if ( !errors.isEmpty() ) {
throw new RuntimeException( errors.toString() );
}
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
KnowledgeBaseImpl kbaseImpl = (KnowledgeBaseImpl) kbase;
kbaseImpl.jaxbClasses = new ArrayList<List<String>>();
for ( JaxbConfigurationImpl conf : xsds ) {
kbaseImpl.jaxbClasses.add( conf.getClasses() );
}
}
public Map<String, AccumulateFunction> getAccumulateFunctions() {
return accumulateFunctions;
}
public void setAccumulateFunctions(Map<String, AccumulateFunction> accumulateFunctions) {
this.accumulateFunctions = accumulateFunctions;
}
public Map<String, EvaluatorDefinition> getEvaluators() {
return evaluators;
}
public void setEvaluators(Map<String, EvaluatorDefinition> evaluators) {
this.evaluators = evaluators;
}
public KnowledgeBaseConfiguration getConf() {
return conf;
}
public void setConf(KnowledgeBaseConfiguration conf) {
this.conf = conf;
}
public KnowledgeBase getKbase() {
return kbase;
}
public void setKbase(KnowledgeBase kbase) {
this.kbase = kbase;
}
public GridNode getNode() {
return node;
}
public List<DroolsResourceAdapter> getResources() {
return resources;
}
public void setResources(List<DroolsResourceAdapter> resources) {
this.resources = resources;
}
public void setNode(GridNode gridNode) {
this.node = gridNode;
}
}