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• RemoteServiceManagementService.java

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jadex.platform.service.remote.RemoteServiceManagementService Maven / Gradle / Ivy

package jadex.platform.service.remote;

import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;

import jadex.base.Starter;
import jadex.bridge.BasicComponentIdentifier;
import jadex.bridge.ClassInfo;
import jadex.bridge.ComponentIdentifier;
import jadex.bridge.ComponentTerminatedException;
import jadex.bridge.IComponentIdentifier;
import jadex.bridge.IComponentStep;
import jadex.bridge.IExternalAccess;
import jadex.bridge.IInputConnection;
import jadex.bridge.IInternalAccess;
import jadex.bridge.IOutputConnection;
import jadex.bridge.IResourceIdentifier;
import jadex.bridge.ITransportComponentIdentifier;
import jadex.bridge.ResourceIdentifier;
import jadex.bridge.component.IExecutionFeature;
import jadex.bridge.fipa.SFipa;
import jadex.bridge.service.BasicService;
import jadex.bridge.service.IService;
import jadex.bridge.service.RequiredServiceInfo;
import jadex.bridge.service.annotation.Service;
import jadex.bridge.service.component.BasicServiceInvocationHandler;
import jadex.bridge.service.component.IRequiredServicesFeature;
import jadex.bridge.service.search.SServiceProvider;
import jadex.bridge.service.search.ServiceNotFoundException;
import jadex.bridge.service.types.address.ITransportAddressService;
import jadex.bridge.service.types.address.TransportAddressBook;
import jadex.bridge.service.types.cms.IComponentDescription;
import jadex.bridge.service.types.cms.IComponentManagementService;
import jadex.bridge.service.types.library.ILibraryService;
import jadex.bridge.service.types.marshal.IMarshalService;
import jadex.bridge.service.types.message.IMessageService;
import jadex.bridge.service.types.remote.IRemoteServiceManagementService;
import jadex.bridge.service.types.remote.ServiceInputConnectionProxy;
import jadex.bridge.service.types.remote.ServiceOutputConnectionProxy;
import jadex.commons.IAsyncFilter;
import jadex.commons.IFilter;
import jadex.commons.SReflect;
import jadex.commons.SUtil;
import jadex.commons.Tuple2;
import jadex.commons.collection.LRU;
import jadex.commons.concurrent.TimeoutException;
import jadex.commons.future.DelegationResultListener;
import jadex.commons.future.ExceptionDelegationResultListener;
import jadex.commons.future.Future;
import jadex.commons.future.IFuture;
import jadex.commons.future.IFutureCommandResultListener;
import jadex.commons.future.IIntermediateFutureCommandResultListener;
import jadex.commons.future.ISubscriptionIntermediateFuture;
import jadex.commons.future.ITerminableFuture;
import jadex.commons.future.IntermediateFuture;
import jadex.commons.future.TerminableIntermediateDelegationFuture;
import jadex.commons.transformation.annotations.Classname;
import jadex.commons.transformation.binaryserializer.IDecoderHandler;
import jadex.commons.transformation.binaryserializer.IDecodingContext;
import jadex.commons.transformation.binaryserializer.IEncodingContext;
import jadex.commons.transformation.traverser.ITraverseProcessor;
import jadex.commons.transformation.traverser.Traverser;
import jadex.platform.service.message.MessageService;
import jadex.platform.service.message.contentcodecs.JadexBinaryContentCodec;
import jadex.platform.service.message.contentcodecs.JadexXMLContentCodec;
import jadex.platform.service.message.streams.InputConnection;
import jadex.platform.service.message.streams.OutputConnection;
import jadex.platform.service.remote.commands.AbstractRemoteCommand;
import jadex.platform.service.remote.commands.RemoteFutureTerminationCommand;
import jadex.platform.service.remote.commands.RemoteGetExternalAccessCommand;
import jadex.platform.service.remote.commands.RemoteIntermediateResultCommand;
import jadex.platform.service.remote.commands.RemoteSearchCommand;
import jadex.platform.service.remote.xml.RMIPostProcessor;
import jadex.platform.service.remote.xml.RMIPreProcessor;
import jadex.xml.AccessInfo;
import jadex.xml.AttributeInfo;
import jadex.xml.IContext;
import jadex.xml.IPostProcessor;
import jadex.xml.IPreProcessor;
import jadex.xml.MappingInfo;
import jadex.xml.ObjectInfo;
import jadex.xml.SXML;
import jadex.xml.SubobjectInfo;
import jadex.xml.TypeInfo;
import jadex.xml.TypeInfoPathManager;
import jadex.xml.XMLInfo;
import jadex.xml.bean.BeanObjectReaderHandler;
import jadex.xml.bean.BeanObjectWriterHandler;
import jadex.xml.bean.JavaReader;
import jadex.xml.bean.JavaWriter;
import jadex.xml.reader.AReader;
import jadex.xml.reader.IObjectReaderHandler;
import jadex.xml.stax.QName;
import jadex.xml.writer.AWriter;
import jadex.xml.writer.IObjectWriterHandler;


/**
 *  The remote service management service is responsible for 
 *  handling remote service invocations (similar to RMI).
 */
public class RemoteServiceManagementService extends BasicService implements IRemoteServiceManagementService
{
	//-------- constants --------
	
	/** Excluded remote methods (for all methods)
	 *	Excluded methods throw UnsupportedOperationException. */
	public static final String REMOTE_EXCLUDED = "remote_excluded";
	
	/** Uncached remote methods (for methods with no parameters)
	 *	Uncached methods will be invoked on every call. */
	public static final String REMOTE_UNCACHED = "remote_uncached";
	
	/** Synchronous remote methods (for methods with void return value). 
     *	If void methods are declared synchronous they will block the caller until
     *	the method has been executed on the remote side (exception thus can arrive). */
	public static final String REMOTE_SYNCHRONOUS = "remote_synchronous";

	/** Replacement methods to be executed instead of remote method invocation. */
	public static final String REMOTE_METHODREPLACEMENT = "remote_methodreplacement";

	/** Timeout for remote method invocation. */
	public static final String REMOTE_TIMEOUT = "remote_timeout";
	
	//-------- attributes --------
	
	/** The component. */
	protected IExternalAccess component;
	
	/** The map of waiting calls (callid -> future). */
	protected Map waitingcalls;
	
	/** The map of processing calls (callid -> terniable future). */
	protected Map processingcalls;
	
	/** The map of termination commands without futures (callid -> command). 
	    This can happen whenever a remote invocation command is executed after the terminate arrives. */
	protected LRU> terminationcommands;

	/** The remote reference module. */
	protected RemoteReferenceModule rrm;
	
	/** The rmi object to xml writer. */
	protected AWriter writer;
	
	/** The rmi xml to object reader. */
	protected AReader reader;
	
	/** Preprocessors for binary encoding. */
	protected List binpreprocs;
	
	/** Postprocessors for binary decoding. */
	protected List binpostprocs;
	
	/** The timer. */
	protected Timer	timer;
	
	/** The marshal service. */
	protected IMarshalService marshal;
	
	/** The message service. */
	protected IMessageService msgservice;
	
	/** The rms identifier. */
//	protected ITransportComponentIdentifier rms;
	
	/** The transport addresses. */
	protected TransportAddressBook addresses;
	
	/** The local platform. */
	protected String platform;
	
	//-------- constructors --------
	
	/**
	 *  Create a new remote service management service.
	 */
	public RemoteServiceManagementService(IExternalAccess component, 
		ILibraryService libservice, final IMarshalService marshal, final IMessageService msgservice, TransportAddressBook addresses)//, boolean binarymode)
	{
		super(component.getComponentIdentifier(), IRemoteServiceManagementService.class, null);

//		System.out.println("binary: "+binarymode);
		
		this.component = component;
		this.rrm = new RemoteReferenceModule(this, libservice, marshal);
		this.waitingcalls = new HashMap();
		this.processingcalls = new HashMap();
		this.terminationcommands = new LRU>(1000);
		this.timer	= new Timer(true);
		this.marshal = marshal;
		this.msgservice = msgservice;
		this.addresses = addresses;
		
		((MessageService)msgservice).setContentCodecInfo(component.getComponentIdentifier(), getCodecInfo());
	}
	
	//-------- methods --------
	
	/**
	 *  Get the rms codec info that needs to be used for encoding/decoding content.
	 */
	public Map, Object[]> getCodecInfo()
	{
		Map, Object[]> infos = new HashMap, Object[]>();

		Object[] bininfo = new Object[]{getBinaryReadInfo(), getBinaryWriteInfo()};
		infos.put(JadexBinaryContentCodec.class, bininfo);
		
		// Only use xml if jadex-xml module present (todo: remove compile time dependency)
		if(!SReflect.isAndroid() && SReflect.classForName0("jadex.xml.reader.Reader", getClass().getClassLoader())!=null)
		{
			Object[] xmlinfo = new Object[]{getXMLReadInfo(), getXMLWriteInfo()};
			infos.put(JadexXMLContentCodec.class, xmlinfo);
		}
		
		return infos;
	}
	
//	/**
//	 *  Get service proxies from a remote platform.
//	 *  (called from arbitrary components)
//	 *  @param cid Component id that is used to start the search.
//	 *  @param manager The search manager.
//	 *  @param decider The visit decider.
//	 *  @param selector The result selector.
//	 *  @return Collection or single result (i.e. service proxies). 
//	 */
//	public ITerminableIntermediateFuture getServiceProxies(final IComponentIdentifier cid, 
//		final ISearchManager manager, final IVisitDecider decider, final IResultSelector selector)
//	{
//		final IComponentIdentifier rrms = new ComponentIdentifier("rms@"+cid.getPlatformName(), cid.getAddresses());
//		final String callid = SUtil.createUniqueId(component.getComponentIdentifier().getName()+".0.getServiceProxies");
//		
//		final TerminableIntermediateDelegationFuture future = new TerminableIntermediateDelegationFuture()
//		{
//			public void terminate(final Exception e) 
//			{
//				component.scheduleStep(new IComponentStep()
//				{
//					// Sends termination command if aborted
//					@Classname("getServiceProxiesTerminate")
//					public IFuture execute(IInternalAccess ia)
//					{
//						// Set exception for local state (as rms removes waiting call, cannot receive remote result any more)
//						boolean	set	= setExceptionIfUndone(e);
//						
//						// Send message to announce termination to remote
//						if(set)
//						{
//							Future res = new Future();
//		//					res.addResultListener(new IResultListener()
//		//					{
//		//						public void resultAvailable(Object result)
//		//						{
//		//							System.out.println("received result: "+result);
//		//						}
//		//						public void exceptionOccurred(Exception exception)
//		//						{
//		//							System.out.println("received exception: "+exception);
//		//						}
//		//					});
//							final String mycallid = SUtil.createUniqueId(component.getComponentIdentifier().getName()+".ret.getServiceProxies");
//							RemoteFutureTerminationCommand content = new RemoteFutureTerminationCommand(mycallid, callid, e);
//							// Can be invoked directly, because internally redirects to agent thread.
//		//					System.out.println("sending terminate");
//							sendMessage(rrms, null, content, mycallid,  BasicService.getRemoteDefaultTimeout(), res, null, null);
//						}
//						return IFuture.DONE;
//					}
//				});
//			}
//			
//			public void sendBackwardCommand(Object info)
//			{
//				Future