org.drools.grid.remote.StatefulKnowledgeSessionRemoteClient Maven / Gradle / Ivy
/*
* Copyright 2010 salaboy.
*
* 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.
* under the License.
*/
package org.drools.grid.remote;
import java.net.InetSocketAddress;
import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import java.util.UUID;
import org.drools.KnowledgeBase;
import org.drools.command.*;
import org.drools.command.runtime.DisposeCommand;
import org.drools.command.runtime.GetFactCountCommand;
import org.drools.command.runtime.GetGlobalsCommand;
import org.drools.command.runtime.process.AbortProcessInstanceCommand;
import org.drools.command.runtime.process.CreateProcessInstanceCommand;
import org.drools.command.runtime.process.GetProcessInstanceCommand;
import org.drools.command.runtime.process.GetProcessInstancesCommand;
import org.drools.command.runtime.process.SignalEventCommand;
import org.drools.command.runtime.process.StartProcessCommand;
import org.drools.command.runtime.process.StartProcessInstanceCommand;
import org.drools.command.runtime.rule.*;
import org.drools.event.process.ProcessEventListener;
import org.drools.event.rule.AgendaEventListener;
import org.drools.event.rule.WorkingMemoryEventListener;
import org.drools.grid.GridNode;
import org.drools.grid.GridServiceDescription;
import org.drools.grid.io.ConversationManager;
import org.drools.grid.io.impl.CommandImpl;
import org.drools.grid.remote.command.AsyncBatchExecutionCommandImpl;
import org.drools.grid.remote.command.GetWorkingMemoryEntryPointRemoteCommand;
import org.drools.grid.remote.command.QueryRemoteCommand;
import org.drools.runtime.Calendars;
import org.drools.runtime.Channel;
import org.drools.runtime.Environment;
import org.drools.runtime.ExitPoint;
import org.drools.runtime.Globals;
import org.drools.runtime.KnowledgeSessionConfiguration;
import org.drools.runtime.ObjectFilter;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.process.ProcessInstance;
import org.drools.runtime.process.WorkItemManager;
import org.drools.runtime.rule.Agenda;
import org.drools.runtime.rule.AgendaFilter;
import org.drools.runtime.rule.FactHandle;
import org.drools.runtime.rule.LiveQuery;
import org.drools.runtime.rule.QueryResults;
import org.drools.runtime.rule.ViewChangedEventListener;
import org.drools.runtime.rule.WorkingMemoryEntryPoint;
import org.drools.time.SessionClock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StatefulKnowledgeSessionRemoteClient
implements
StatefulKnowledgeSession {
private static Logger logger = LoggerFactory.getLogger(StatefulKnowledgeSessionRemoteClient.class);
private String instanceId;
private GridServiceDescription gsd;
private ConversationManager cm;
private KnowledgeSessionConfigurationRemoteClient conf;
private Long timeout;
private Long minWaitTime;
public StatefulKnowledgeSessionRemoteClient(String localId,
GridServiceDescription gsd,
ConversationManager cm,
KnowledgeSessionConfigurationRemoteClient conf) {
this.instanceId = localId;
this.gsd = gsd;
this.cm = cm;
this.conf = conf;
//Configure timeouts
if (this.conf != null){
String configuredTimeout = this.conf.getProperty(KnowledgeSessionConfigurationRemoteClient.PROPERTY_MESSAGE_TIMEOUT);
if (configuredTimeout != null){
timeout = Long.parseLong(configuredTimeout);
}
String configuredMinWaitTime = this.conf.getProperty(KnowledgeSessionConfigurationRemoteClient.PROPERTY_MESSAGE_MINIMUM_WAIT_TIME);
if (configuredMinWaitTime != null){
minWaitTime = Long.parseLong(configuredMinWaitTime);
}
}
}
public int getId() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void dispose() {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new DisposeCommand(),
null,
null,
this.instanceId,
kresultsId ), this.instanceId} ) );
this.sendMessage(cmd);
}
public int fireAllRules() {
return fireAllRules( -1 );
}
public int fireAllRules(int max) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( CommandFactory.newFireAllRules( max ),
null,
null,
this.instanceId,
kresultsId )} ) );
return (Integer)this.sendMessage(cmd);
}
public int fireAllRules(AgendaFilter agendaFilter) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new FireAllRulesCommand( agendaFilter ),
null,
null,
this.instanceId,
kresultsId )} ) );
return (Integer) this.sendMessage(cmd);
}
public int fireAllRules(AgendaFilter agendaFilter,
int max) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new FireAllRulesCommand( agendaFilter,
max ),
null,
null,
this.instanceId,
kresultsId )} ) );
return (Integer) this.sendMessage(cmd);
}
public void fireUntilHalt() {
fireUntilHalt( null );
}
public void fireUntilHalt(AgendaFilter agendaFilter) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new FireUntilHaltCommand( agendaFilter ),
null,
null,
this.instanceId,
kresultsId )} ) );
this.sendMessage(cmd);
}
public T execute(Command command) {
String kresultsId = "kresults_" + this.gsd.getId();
if(logger.isDebugEnabled()){
logger.debug(" ### Calling Execute from the SKS Remote Client with instanceId: "+this.instanceId);
}
Object result = null;
if(command instanceof AsyncBatchExecutionCommandImpl){
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new ExecuteCommand( command , false),
null,
null,
this.instanceId,
kresultsId ),this.instanceId} ) );
ConversationUtil.sendAsyncMessage( this.cm,
(InetSocketAddress) this.gsd.getAddresses().get( "socket" ).getObject(),
this.gsd.getId(),
cmd );
// Result must be null if it's async
}else{
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new ExecuteCommand( command , true),
null,
null,
this.instanceId,
kresultsId ),this.instanceId} ) );
result = this.sendMessage(cmd);
if(logger.isDebugEnabled()){
logger.debug(" ### Execute Method Returns: "+result);
}
}
return (T) result;
}
public T getSessionClock() {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new GetSessionClockCommand(),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return (T) result;
}
public void setGlobal(String identifier,
Object object) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( CommandFactory.newSetGlobal( identifier,
object ),
null,
null,
this.instanceId,
kresultsId )} ) );
this.sendMessage(cmd);
}
public Object getGlobal(String identifier) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( CommandFactory.newGetGlobal( identifier ),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return result;
}
public Globals getGlobals() {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new GetGlobalsCommand(),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return (Globals) result;
}
public Calendars getCalendars() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public Environment getEnvironment() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public KnowledgeBase getKnowledgeBase() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void registerExitPoint(String name,
ExitPoint exitPoint) {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void unregisterExitPoint(String name) {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void registerChannel(String name,
Channel channel) {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void unregisterChannel(String name) {
throw new UnsupportedOperationException( "Not supported yet." );
}
public Map getChannels() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public KnowledgeSessionConfiguration getSessionConfiguration() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public void halt() {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new HaltCommand(),
null,
null,
this.instanceId,
kresultsId )} ) );
this.sendMessage(cmd);
}
public Agenda getAgenda() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public WorkingMemoryEntryPoint getWorkingMemoryEntryPoint(String name) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new GetWorkingMemoryEntryPointRemoteCommand( name ),
null,
null,
this.instanceId,
name,
kresultsId )} ) );
this.sendMessage(cmd);
return new WorkingMemoryEntryPointRemoteClient( this.instanceId,
name,
this.gsd,
this.cm );
}
public Collection< ? extends WorkingMemoryEntryPoint> getWorkingMemoryEntryPoints() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public QueryResults getQueryResults(String query,
Object... arguments) {
String localId = "query_" + UUID.randomUUID().toString();
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{ new SetVariableCommandFromCommand("__TEMP__", localId,
new KnowledgeContextResolveFromContextCommand( new QueryRemoteCommand( localId ,
query, false,
arguments ),
null,
null,
this.instanceId,
kresultsId )) } ) );
this.sendMessage(cmd);
return new QueryResultsRemoteClient( query,
this.instanceId,
localId,
this.gsd,
this.cm );
}
public LiveQuery openLiveQuery(String query,
Object[] arguments,
ViewChangedEventListener listener) {
throw new UnsupportedOperationException( "Not supported yet." );
}
public String getEntryPointId() {
throw new UnsupportedOperationException( "Not supported yet." );
}
public FactHandle insert(Object object) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new InsertObjectCommand( object,
true ),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return (FactHandle) result;
}
public void retract(FactHandle handle) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( CommandFactory.newRetract( handle ),
null,
null,
this.instanceId,
kresultsId )} ) );
this.sendMessage(cmd);
}
public void update(FactHandle handle,
Object object) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new UpdateCommand( handle,
object ),
null,
null,
this.instanceId,
kresultsId )} ) );
this.sendMessage(cmd);
}
public FactHandle getFactHandle(Object object) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new GetFactHandleCommand( object,
true ),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return (FactHandle) result;
}
public Object getObject(FactHandle factHandle) {
String kresultsId = "kresults_" + this.gsd.getId();
CommandImpl cmd = new CommandImpl( "execute",
Arrays.asList( new Object[]{new KnowledgeContextResolveFromContextCommand( new GetObjectCommand( factHandle ),
null,
null,
this.instanceId,
kresultsId )} ) );
Object result = this.sendMessage(cmd);
return result;
}
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