package org.drools.reteoo;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.drools.StatelessSession;
import org.drools.StatelessSessionResult;
import org.drools.base.MapGlobalResolver;
import org.drools.common.InternalRuleBase;
import org.drools.common.InternalWorkingMemory;
import org.drools.concurrent.AssertObject;
import org.drools.concurrent.AssertObjects;
import org.drools.concurrent.CommandExecutor;
import org.drools.concurrent.ExecutorService;
import org.drools.concurrent.FireAllRules;
import org.drools.event.AgendaEventListener;
import org.drools.event.AgendaEventSupport;
import org.drools.event.RuleBaseEventListener;
import org.drools.event.RuleFlowEventListener;
import org.drools.event.RuleFlowEventSupport;
import org.drools.event.WorkingMemoryEventListener;
import org.drools.event.WorkingMemoryEventSupport;
import org.drools.reteoo.ReteooRuleBase.InitialFactHandleDummyObject;
import org.drools.reteoo.ReteooWorkingMemory.WorkingMemoryReteAssertAction;
import org.drools.spi.AgendaFilter;
import org.drools.spi.GlobalExporter;
import org.drools.spi.GlobalResolver;
public class ReteooStatelessSession
implements
StatelessSession {
//private WorkingMemory workingMemory;
private InternalRuleBase ruleBase;
private AgendaFilter agendaFilter;
private GlobalResolver globalResolver = new MapGlobalResolver();
private GlobalExporter globalExporter;
/** The eventSupport */
protected WorkingMemoryEventSupport workingMemoryEventSupport = new WorkingMemoryEventSupport();
protected AgendaEventSupport agendaEventSupport = new AgendaEventSupport();
protected RuleFlowEventSupport ruleFlowEventSupport = new RuleFlowEventSupport();
public ReteooStatelessSession(final InternalRuleBase ruleBase) {
this.ruleBase = ruleBase;
}
public InternalWorkingMemory newWorkingMemory() {
synchronized ( this.ruleBase.getPackagesMap() ) {
InternalWorkingMemory wm = new ReteooWorkingMemory( this.ruleBase.nextWorkingMemoryCounter(),
this.ruleBase );
wm.setGlobalResolver( this.globalResolver );
wm.setWorkingMemoryEventSupport( this.workingMemoryEventSupport );
wm.setAgendaEventSupport( this.agendaEventSupport );
wm.setRuleFlowEventSupport( ruleFlowEventSupport );
final InitialFactHandle handle = new InitialFactHandle( wm.getFactHandleFactory().newFactHandle( new InitialFactHandleDummyObject() ) );
wm.queueWorkingMemoryAction( new WorkingMemoryReteAssertAction( handle,
false,
true,
null,
null ) );
return wm;
}
}
public void addEventListener(final WorkingMemoryEventListener listener) {
this.workingMemoryEventSupport.addEventListener( listener );
}
public void removeEventListener(final WorkingMemoryEventListener listener) {
this.workingMemoryEventSupport.removeEventListener( listener );
}
public List getWorkingMemoryEventListeners() {
return this.workingMemoryEventSupport.getEventListeners();
}
public void addEventListener(final AgendaEventListener listener) {
this.agendaEventSupport.addEventListener( listener );
}
public void removeEventListener(final AgendaEventListener listener) {
this.agendaEventSupport.removeEventListener( listener );
}
public List getAgendaEventListeners() {
return this.agendaEventSupport.getEventListeners();
}
public void addEventListener(final RuleFlowEventListener listener) {
this.ruleFlowEventSupport.addEventListener( listener );
}
public void removeEventListener(final RuleFlowEventListener listener) {
this.ruleFlowEventSupport.removeEventListener( listener );
}
public List getRuleFlowEventListeners() {
return this.ruleFlowEventSupport.getEventListeners();
}
public void addEventListener(RuleBaseEventListener listener) {
this.ruleBase.addEventListener( listener );
}
public List getRuleBaseEventListeners() {
return this.ruleBase.getRuleBaseEventListeners();
}
public void removeEventListener(RuleBaseEventListener listener) {
this.ruleBase.removeEventListener( listener );
}
public void setAgendaFilter(AgendaFilter agendaFilter) {
this.agendaFilter = agendaFilter;
}
public void setGlobal(String identifier,
Object value) {
this.globalResolver.setGlobal( identifier,
value );
}
public void setGlobalResolver(GlobalResolver globalResolver) {
this.globalResolver = globalResolver;
}
public void setGlobalExporter(GlobalExporter globalExporter) {
this.globalExporter = globalExporter;
}
public void execute(Object object) {
InternalWorkingMemory wm = newWorkingMemory();
wm.insert( object );
wm.fireAllRules( this.agendaFilter );
}
public void execute(Object[] array) {
InternalWorkingMemory wm = newWorkingMemory();
for ( int i = 0, length = array.length; i < length; i++ ) {
wm.insert( array[i] );
}
wm.fireAllRules( this.agendaFilter );
}
public void execute(Collection collection) {
InternalWorkingMemory wm = newWorkingMemory();
for ( Iterator it = collection.iterator(); it.hasNext(); ) {
wm.insert( it.next() );
}
wm.fireAllRules( this.agendaFilter );
}
public void asyncExecute(final Object object) {
InternalWorkingMemory wm = newWorkingMemory();
final AssertObject assertObject = new AssertObject( object );
ExecutorService executor = this.ruleBase.getConfiguration().getExecutorService();
executor.setCommandExecutor( new CommandExecutor( wm ) );
executor.submit( assertObject );
executor.submit( new FireAllRules( this.agendaFilter ) );
}
public void asyncExecute(final Object[] array) {
InternalWorkingMemory wm = newWorkingMemory();
final AssertObjects assertObjects = new AssertObjects( array );
ExecutorService executor = this.ruleBase.getConfiguration().getExecutorService();
executor.setCommandExecutor( new CommandExecutor( wm ) );
executor.submit( assertObjects );
executor.submit( new FireAllRules( this.agendaFilter ) );
}
public void asyncExecute(final Collection collection) {
InternalWorkingMemory wm = newWorkingMemory();
final AssertObjects assertObjects = new AssertObjects( collection );
ExecutorService executor = this.ruleBase.getConfiguration().getExecutorService();
executor.setCommandExecutor( new CommandExecutor( wm ) );
executor.submit( assertObjects );
executor.submit( new FireAllRules( this.agendaFilter ) );
}
public StatelessSessionResult executeWithResults(Object object) {
InternalWorkingMemory wm = newWorkingMemory();
wm.insert( object );
wm.fireAllRules( this.agendaFilter );
GlobalResolver globalResolver = null;
if ( this.globalExporter != null ) {
globalResolver = this.globalExporter.export( wm );
}
return new ReteStatelessSessionResult( wm,
globalResolver );
}
public StatelessSessionResult executeWithResults(Object[] array) {
InternalWorkingMemory wm = newWorkingMemory();
for ( int i = 0, length = array.length; i < length; i++ ) {
wm.insert( array[i] );
}
wm.fireAllRules( this.agendaFilter );
GlobalResolver globalResolver = null;
if ( this.globalExporter != null ) {
globalResolver = this.globalExporter.export( wm );
}
return new ReteStatelessSessionResult( wm,
globalResolver );
}
public StatelessSessionResult executeWithResults(Collection collection) {
InternalWorkingMemory wm = newWorkingMemory();
for ( Iterator it = collection.iterator(); it.hasNext(); ) {
wm.insert( it.next() );
}
wm.fireAllRules( this.agendaFilter );
GlobalResolver globalResolver = null;
if ( this.globalExporter != null ) {
globalResolver = this.globalExporter.export( wm );
}
return new ReteStatelessSessionResult( wm,
globalResolver );
}
}