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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package org.drools.compiler.kie.builder.impl;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import java.util.function.Predicate;
import org.drools.compiler.builder.InternalKnowledgeBuilder;
import org.drools.compiler.builder.impl.KnowledgeBuilderConfigurationImpl;
import org.drools.compiler.builder.impl.KnowledgeBuilderImpl;
import org.drools.compiler.kproject.models.KieBaseModelImpl;
import org.drools.compiler.kproject.models.KieModuleModelImpl;
import org.drools.compiler.kproject.models.KieSessionModelImpl;
import org.drools.util.StringUtils;
import org.kie.api.builder.Message;
import org.kie.api.builder.model.KieBaseModel;
import org.kie.api.builder.model.KieModuleModel;
import org.kie.api.builder.model.KieSessionModel;
import org.kie.internal.builder.CompositeKnowledgeBuilder;
import org.kie.internal.builder.KnowledgeBuilder;
import org.kie.internal.builder.KnowledgeBuilderError;
import org.kie.internal.builder.KnowledgeBuilderFactory;
import org.kie.internal.builder.KnowledgeBuilderResult;
import org.kie.internal.builder.ResultSeverity;
import org.kie.internal.builder.conf.GroupDRLsInKieBasesByFolderOption;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.drools.compiler.kie.builder.impl.KieBuilderImpl.filterFileInKBase;
public abstract class AbstractKieProject implements KieProject {
private static final Logger log = LoggerFactory.getLogger(KieProject.class);
protected final Map kBaseModels = new HashMap<>();
private KieBaseModel defaultKieBase = null;
private KieSessionModel defaultKieSession = null;
private KieSessionModel defaultStatelessKieSession = null;
private Map> includesInKieBase = new HashMap<>();
private final Map kSessionModels = new HashMap<>();
private static final Predicate BUILD_ALL = s -> true;
public ResultsImpl verify() {
BuildContext buildContext = new BuildContext();
verify(buildContext);
return buildContext.getMessages();
}
public ResultsImpl verify(String... kBaseNames) {
BuildContext buildContext = new BuildContext();
verify(kBaseNames, buildContext);
return buildContext.getMessages();
}
public void verify(BuildContext buildContext) {
for ( KieBaseModel model : kBaseModels.values() ) {
buildKnowledgePackages((KieBaseModelImpl) model, buildContext);
}
}
private void verify(String[] kBaseNames, BuildContext buildContext) {
for ( String modelName : kBaseNames ) {
KieBaseModelImpl kieBaseModel = (KieBaseModelImpl) kBaseModels.get( modelName );
if ( kieBaseModel == null ) {
throw new RuntimeException( "Unknown KieBase. Cannot find a KieBase named: " + modelName );
}
buildKnowledgePackages( kieBaseModel, buildContext );
}
}
public KieBaseModel getDefaultKieBaseModel() {
return defaultKieBase;
}
public KieSessionModel getDefaultKieSession() {
return defaultKieSession;
}
public KieSessionModel getDefaultStatelessKieSession() {
return defaultStatelessKieSession;
}
public KieBaseModel getKieBaseModel(String kBaseName) {
return kBaseName == null ? getDefaultKieBaseModel() : kBaseModels.get( kBaseName );
}
public Collection getKieBaseNames() {
return kBaseModels.keySet();
}
public KieSessionModel getKieSessionModel(String kSessionName) {
return kSessionName == null ? getDefaultKieSession() : kSessionModels.get( kSessionName );
}
void indexParts( InternalKieModule mainKieModule,
Collection depKieModules,
Map kJarFromKBaseName ) {
for ( InternalKieModule kJar : depKieModules ) {
indexKieModule( kJarFromKBaseName, kJar, false );
}
if (mainKieModule != null) {
indexKieModule( kJarFromKBaseName, mainKieModule, true );
}
}
private void indexKieModule( Map kJarFromKBaseName, InternalKieModule kJar, boolean isMainModule ) {
boolean defaultKieBaseFromMain = false;
boolean defaultKieSessionFromMain = false;
boolean defaultStatelessKieSessionFromMain = false;
KieModuleModel kieProject = kJar.getKieModuleModel();
for ( KieBaseModel kieBaseModel : kieProject.getKieBaseModels().values() ) {
if (kieBaseModel.isDefault()) {
if (defaultKieBase == null || (isMainModule && !defaultKieBaseFromMain)) {
defaultKieBase = kieBaseModel;
defaultKieBaseFromMain = isMainModule;
} else {
defaultKieBase = null;
log.warn("Found more than one default KieBase: disabling all. KieBases will be accessible only by name");
}
}
kBaseModels.put( kieBaseModel.getName(), kieBaseModel );
((KieBaseModelImpl) kieBaseModel).setKModule( kieProject ); // should already be set, but just in case
kJarFromKBaseName.put( kieBaseModel.getName(), kJar );
for ( KieSessionModel kieSessionModel : kieBaseModel.getKieSessionModels().values() ) {
if (kieSessionModel.isDefault()) {
if (kieSessionModel.getType() == KieSessionModel.KieSessionType.STATEFUL) {
if (defaultKieSession == null || (isMainModule && !defaultKieSessionFromMain)) {
defaultKieSession = kieSessionModel;
defaultKieSessionFromMain = isMainModule;
} else {
defaultKieSession = null;
log.warn("Found more than one default KieSession: disabling all. KieSessions will be accessible only by name");
}
} else {
if (defaultStatelessKieSession == null || (isMainModule && !defaultStatelessKieSessionFromMain)) {
defaultStatelessKieSession = kieSessionModel;
defaultStatelessKieSessionFromMain = isMainModule;
} else {
defaultStatelessKieSession = null;
log.warn("Found more than one default StatelessKieSession: disabling all. StatelessKieSessions will be accessible only by name");
}
}
}
((KieSessionModelImpl) kieSessionModel).setKBase( kieBaseModel ); // should already be set, but just in case
kSessionModels.put( kieSessionModel.getName(), kieSessionModel );
}
}
}
void cleanIndex() {
kBaseModels.clear();
kSessionModels.clear();
includesInKieBase.clear();
defaultKieBase = null;
defaultKieSession = null;
defaultStatelessKieSession = null;
}
public Set getTransitiveIncludes(String kBaseName) {
return getTransitiveIncludes(getKieBaseModel(kBaseName));
}
public Set getTransitiveIncludes(KieBaseModel kBaseModel) {
Set includes = includesInKieBase.get(kBaseModel);
if (includes == null) {
includes = new HashSet<>();
getTransitiveIncludes(kBaseModel, includes);
includesInKieBase.put(kBaseModel, includes);
}
return includes;
}
private void getTransitiveIncludes(KieBaseModel kBaseModel, Set includes) {
if (kBaseModel == null) {
return;
}
Set incs = kBaseModel.getIncludes();
if (incs != null && !incs.isEmpty()) {
for (String inc : incs) {
if (!includes.contains(inc)) {
includes.add(inc);
getTransitiveIncludes(getKieBaseModel(inc), includes);
}
}
}
}
public KnowledgeBuilder buildKnowledgePackages( KieBaseModelImpl kBaseModel, BuildContext buildContext ) {
return buildKnowledgePackages( kBaseModel, buildContext, BUILD_ALL );
}
public KnowledgeBuilder buildKnowledgePackages( KieBaseModelImpl kBaseModel, BuildContext buildContext, Predicate buildFilter ) {
boolean useFolders = useFolders( kBaseModel );
Set assets = new LinkedHashSet<>();
InternalKieModule kModule = getKieModuleForKBase(kBaseModel.getName());
boolean allIncludesAreValid = true;
for (String include : getTransitiveIncludes(kBaseModel)) {
if ( StringUtils.isEmpty( include )) {
continue;
}
InternalKieModule includeModule = getKieModuleForKBase(include);
if (includeModule == null) {
String text = "Unable to build KieBase, could not find include: " + include;
log.error(text);
buildContext.getMessages().addMessage( Message.Level.ERROR, KieModuleModelImpl.KMODULE_SRC_PATH.asString(), text ).setKieBaseName( kBaseModel.getName() );
allIncludesAreValid = false;
continue;
}
if (compileIncludedKieBases()) {
addFiles( buildFilter, assets, getKieBaseModel( include ), includeModule, useFolders );
} else {
if (kModule != includeModule) {
// includeModule is not part of the current kModule
buildContext.addIncludeModule(getKieBaseModel(include), includeModule);
}
}
}
if (!allIncludesAreValid) {
return null;
}
addFiles( buildFilter, assets, kBaseModel, kModule, useFolders );
KnowledgeBuilder kbuilder;
if (assets.isEmpty()) {
if (buildFilter == BUILD_ALL) {
log.warn( "No files found for KieBase " + kBaseModel.getName() +
(kModule instanceof FileKieModule ? ", searching folder " + kModule.getFile() : ""));
}
kbuilder = new InternalKnowledgeBuilder.Empty( getClassLoader(), () -> provideKnowledgeBuilder( kBaseModel, kModule, buildContext ) );
} else {
kbuilder = provideKnowledgeBuilder( kBaseModel, kModule, buildContext );
if ( kbuilder == null ) {
return null;
}
CompositeKnowledgeBuilder ckbuilder = kbuilder.batch();
for (Asset asset : assets) {
if (buildContext.registerResourceToBuild(kBaseModel.getName(), asset.name)) {
asset.kmodule.addResourceToCompiler(ckbuilder, kBaseModel, asset.name);
}
}
ckbuilder.build();
if ( kbuilder.hasErrors() ) {
for (KnowledgeBuilderError error : kbuilder.getErrors()) {
buildContext.getMessages().addMessage( error ).setKieBaseName( kBaseModel.getName() );
}
log.error( "Unable to build KieBaseModel:" + kBaseModel.getName() + "\n" + kbuilder.getErrors().toString() );
}
if ( kbuilder.hasResults( ResultSeverity.WARNING ) ) {
for (KnowledgeBuilderResult warn : kbuilder.getResults( ResultSeverity.WARNING )) {
buildContext.getMessages().addMessage( warn ).setKieBaseName( kBaseModel.getName() );
}
log.warn( "Warning : " + kBaseModel.getName() + "\n" + kbuilder.getResults( ResultSeverity.WARNING ).toString() );
}
}
// cache KnowledgeBuilder and results
if (buildFilter == BUILD_ALL) {
kModule.cacheKnowledgeBuilderForKieBase( kBaseModel.getName(), kbuilder );
kModule.cacheResultsForKieBase( kBaseModel.getName(), buildContext.getMessages() );
}
return kbuilder;
}
private KnowledgeBuilderImpl provideKnowledgeBuilder( KieBaseModelImpl kBaseModel, InternalKieModule kModule, BuildContext buildContext ) {
KnowledgeBuilderImpl kbuilder = (KnowledgeBuilderImpl) createKnowledgeBuilder( kBaseModel, kModule );
if ( kbuilder != null ) {
kbuilder.setReleaseId( getGAV() );
kbuilder.setBuildContext( buildContext );
}
return kbuilder;
}
private boolean useFolders( KieBaseModelImpl kBaseModel ) {
String modelProp = kBaseModel.getKModule().getConfigurationProperty( GroupDRLsInKieBasesByFolderOption.PROPERTY_NAME );
if (modelProp == null) {
modelProp = System.getProperty( GroupDRLsInKieBasesByFolderOption.PROPERTY_NAME );
}
return modelProp != null && modelProp.equalsIgnoreCase("true");
}
protected boolean compileIncludedKieBases() {
return true;
}
protected KnowledgeBuilder createKnowledgeBuilder( KieBaseModelImpl kBaseModel, InternalKieModule kModule ) {
return KnowledgeBuilderFactory.newKnowledgeBuilder( getBuilderConfiguration( kBaseModel, kModule ) );
}
private void addFiles( Predicate buildFilter, Set assets, KieBaseModel kieBaseModel,
InternalKieModule kieModule, boolean useFolders) {
for (String fileName : kieModule.getFileNames()) {
if (buildFilter.test( fileName ) && !fileName.startsWith(".") && !fileName.endsWith(".properties") &&
filterFileInKBase(kieModule, kieBaseModel, fileName, () -> kieModule.getResource( fileName ), useFolders)) {
assets.add(new Asset( kieModule, fileName ));
}
}
}
protected KnowledgeBuilderConfigurationImpl getBuilderConfiguration( KieBaseModel kBaseModel, InternalKieModule kModule ) {
return (KnowledgeBuilderConfigurationImpl) kModule.createBuilderConfiguration(kBaseModel, getClassLoader());
}
private static class Asset {
private final InternalKieModule kmodule;
private final String name;
private Asset( InternalKieModule kmodule, String name ) {
this.kmodule = kmodule;
this.name = name;
}
@Override
public boolean equals( Object o ) {
if ( this == o ) {
return true;
}
if ( o == null || getClass() != o.getClass() ) {
return false;
}
Asset asset = (Asset) o;
return kmodule.equals( asset.kmodule ) && name.equals( asset.name );
}
@Override
public int hashCode() {
int result = kmodule.hashCode();
result = 31 * result + name.hashCode();
return result;
}
@Override
public String toString() {
return "Asset: " + name;
}
}
}
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