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The Jadex platform package contains implementations of platform services as well as the platform component itself.
package jadex.platform.service.remote.commands;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import jadex.bridge.ClassInfo;
import jadex.bridge.IComponentIdentifier;
import jadex.bridge.IComponentStep;
import jadex.bridge.IExternalAccess;
import jadex.bridge.IInternalAccess;
import jadex.bridge.IntermediateComponentResultListener;
import jadex.bridge.service.IService;
import jadex.bridge.service.RequiredServiceInfo;
import jadex.bridge.service.annotation.Security;
import jadex.bridge.service.search.SServiceProvider;
import jadex.bridge.service.search.SynchronizedServiceRegistry;
import jadex.bridge.service.search.SServiceProvider.IntermediateProxyResultListener;
import jadex.bridge.service.types.cms.IComponentManagementService;
import jadex.bridge.service.types.library.ILibraryService;
import jadex.commons.IAsyncFilter;
import jadex.commons.future.ExceptionDelegationResultListener;
import jadex.commons.future.Future;
import jadex.commons.future.IFuture;
import jadex.commons.future.IIntermediateFuture;
import jadex.commons.future.IIntermediateResultListener;
import jadex.commons.future.IResultListener;
import jadex.commons.future.ITerminableIntermediateFuture;
import jadex.commons.future.IntermediateDelegationResultListener;
import jadex.commons.future.TerminableIntermediateFuture;
import jadex.commons.future.TerminationCommand;
import jadex.commons.transformation.annotations.Alias;
import jadex.platform.service.remote.IRemoteCommand;
import jadex.platform.service.remote.RemoteReferenceModule;
import jadex.platform.service.remote.RemoteServiceManagementService;
/**
* Command for performing a remote service search.
*/
@Alias("jadex.base.service.remote.commands.RemoteSearchCommand")
public class RemoteSearchCommand extends AbstractRemoteCommand
{
//-------- attributes --------
/** The providerid (i.e. the component to start with searching). */
protected IComponentIdentifier providerid;
// /** The serach manager. */
// protected ISearchManager manager;
//
// /** The visit decider. */
// protected IVisitDecider decider;
//
// /** The result selector. */
// protected IResultSelector selector;
/** The callid. */
protected String callid;
/** The security level (set by postprocessing). */
protected String securitylevel;
/** The type. */
protected ClassInfo type;
/** The multiple flag. */
protected boolean multiple;
/** The scope. */
protected String scope;
/** The filter. */
protected IAsyncFilter filter;
/** The caller. */
protected IComponentIdentifier caller;
//-------- constructors --------
/**
* Create a new remote search command.
*/
public RemoteSearchCommand()
{
}
/**
* Create a new remote search command.
*/
public RemoteSearchCommand(IComponentIdentifier providerid, ClassInfo type,
boolean multiple, String scope, String callid, IAsyncFilter filter, IComponentIdentifier caller)
{
// if(type==null)
// System.out.println("type is null");
this.providerid = providerid;
this.type = type;
this.multiple = multiple;
this.scope = scope;
this.callid = callid;
this.filter = filter;
this.caller = caller;
}
//-------- methods --------
/**
* Return security level determined by post-process.
*/
public String getSecurityLevel()
{
return securitylevel;
}
/**
* Post-process a received command before execution
* for e.g. setting security level.
*/
public IFuture postprocessCommand(IInternalAccess component, RemoteReferenceModule rrm, final IComponentIdentifier target)
{
final Future ret = new Future();
try
{
// Try to find security level.
// Todo: support other result selectors!?
if(type!=null)
{
rrm.getLibraryService().getClassLoader(null).addResultListener(new ExceptionDelegationResultListener(ret)
{
public void customResultAvailable(ClassLoader result)
{
Security sec = null;
Class typecl = type.getType(result);
if(typecl!=null)
{
List> classes = new ArrayList>();
classes.add(typecl);
for(int i=0; sec==null && i clazz = classes.get(i);
sec = clazz.getAnnotation(Security.class);
if(sec==null)
{
classes.addAll(Arrays.asList((Class[])clazz.getInterfaces()));
if(clazz.getSuperclass()!=null)
{
classes.add(clazz.getSuperclass());
}
}
}
}
// Default to max security if not found.
securitylevel = sec!=null ? sec.value() : Security.PASSWORD;
ret.setResult(null);
}
});
}
else
{
ret.setResult(null);
}
}
catch(Exception e)
{
ret.setException(e);
}
return ret;
}
/**
* Execute the command.
* @param lrms The local remote management service.
* @return An optional result command that will be
* sent back to the command origin.
*/
public IIntermediateFuture execute(final IExternalAccess component, final RemoteServiceManagementService rsms)
{
// if(filter!=null)
// System.out.println("remote search command: "+filter);
final TerminableIntermediateFuture ret = new TerminableIntermediateFuture(new TerminationCommand()
{
public void terminated(Exception reason)
{
// Todo: terminate ongoing search.
}
});
// if(type==null)
// {
// ret.setException(new RuntimeException("Incompatible Jadex version exception."));
// return ret;
// }
// System.out.println("start rem search: "+callid);
// Remove call when finished
ret.addResultListener(new IResultListener>()
{
public void resultAvailable(Collection result)
{
// System.out.println("fin: "+result.size()+" "+callid);
rsms.removeProcessingCall(callid);
}
public void exceptionOccurred(Exception exception)
{
// System.out.println("fin exe"+exception);
rsms.removeProcessingCall(callid+" "+callid);
}
});
// Remember invocation for termination invocation
rsms.putProcessingCall(callid, ret);
List cmds = rsms.removeFutureCommands(callid);
if(cmds!=null)
{
for(Runnable cmd: cmds)
{
cmd.run();
}
}
SServiceProvider.getService(component, IComponentManagementService.class, RequiredServiceInfo.SCOPE_PLATFORM)
.addResultListener(new IResultListener()
// .addResultListener(component.createResultListener(new IResultListener()
{
public void resultAvailable(IComponentManagementService cms)
{
// ServiceCall next = ServiceCall.getOrCreateNextInvocation();
// next.setProperty("debugsource", "RemoteSearchCommand.execute()");
// IComponentManagementService cms = (IComponentManagementService)result;
cms.getExternalAccess((IComponentIdentifier)providerid).addResultListener(new IResultListener()
{
public void resultAvailable(IExternalAccess exta)
{
exta.scheduleStep(new IComponentStep()
{
public IFuture execute(final IInternalAccess ia)
{
IResultListener rl = new IResultListener()
{
public void resultAvailable(ClassLoader cloader)
{
Class cl = type!=null ? type.getType(cloader, ia.getModel().getAllImports()) : null;
// if(cl.getName().indexOf("IMessage")!=-1)
// System.out.println("oooooooo");
// not possible because scope should be global without starting a global search
// ITerminableIntermediateFuture res = (ITerminableIntermediateFuture)SServiceProvider.getServices(ia, caller, cl, scope, (IAsyncFilter)filter, false);
// todo: add case that filter is null
// if(filter==null)
// {
// Collection sers = SynchronizedServiceRegistry.getRegistry(component.getComponentIdentifier()).searchServices(type, caller, RequiredServiceInfo.SCOPE_GLOBAL);
// ret.setResult(sers==null? Collections.EMPTY_SET: sers);
// }
ITerminableIntermediateFuture res = SynchronizedServiceRegistry.getRegistry(component.getComponentIdentifier()).searchServices(type, caller, RequiredServiceInfo.SCOPE_GLOBAL, filter);
res.addResultListener(new IIntermediateResultListener()
{
int cnt = 0;
public void intermediateResultAvailable(IService result)
{
// System.out.println("result command of search: "+callid+" "+result);
ret.addIntermediateResultIfUndone(new RemoteIntermediateResultCommand(null, result, callid,
false, null, false, getNonFunctionalProperties(), ret, cnt++));
}
public void finished()
{
// System.out.println("result command of search fini: "+callid);
ret.addIntermediateResultIfUndone(new RemoteIntermediateResultCommand(null, null, callid,
false, null, true, getNonFunctionalProperties(), ret, cnt++));
ret.setFinishedIfUndone();
}
public void resultAvailable(Collection result)
{
// System.out.println("rem search end: "+manager+" "+decider+" "+selector+" "+result);
// Create proxy info(s) for service(s)
Object content;
// if(result instanceof Collection)
// {
List res = new ArrayList();
for(Iterator it=result.iterator(); it.hasNext(); )
{
IService service = (IService)it.next();
// RemoteServiceManagementService.getProxyInfo(component.getComponentIdentifier(), tmp,
// tmp.getServiceIdentifier(), tmp.getServiceIdentifier().getServiceType());
// ProxyInfo pi = getProxyInfo(component.getComponentIdentifier(), tmp);
// res.add(pi);
res.add(service);
}
content = res;
// }
// else //if(result instanceof Object[])
// {
// IService service = (IService)result;
//// content = getProxyInfo(component.getComponentIdentifier(), tmp);
// content = service;
// }
// ret.setResult(new RemoteResultCommand(content, null , callid, false));
ret.addIntermediateResultIfUndone(new RemoteResultCommand(null, content, null, callid,
false, null, getNonFunctionalProperties()));
ret.setFinishedIfUndone();
}
public void exceptionOccurred(Exception exception)
{
// ret.setResult(new RemoteResultCommand(null, exception, callid, false));
ret.addIntermediateResultIfUndone(new RemoteResultCommand(null, null, exception, callid,
false, null, getNonFunctionalProperties()));
ret.setFinishedIfUndone();
}
});
}
public void exceptionOccurred(Exception exception)
{
System.out.println("exception: "+exception);
}
};
// if is platform use classloader all
if(providerid.getParent()==null)
{
ILibraryService ls = SServiceProvider.getLocalService(ia, ILibraryService.class, RequiredServiceInfo.SCOPE_PLATFORM);
ls.getClassLoader(null).addResultListener(rl);
}
else
{
rl.resultAvailable(ia.getClassLoader());
}
return IFuture.DONE;
}
}).addResultListener(new IResultListener()
{
public void resultAvailable(Void result)
{
}
public void exceptionOccurred(Exception exception)
{
System.out.println("schedule exception: "+exception);
}
});
}
public void exceptionOccurred(Exception exception)
{
// ret.setResult(new RemoteResultCommand(null, exception, callid, false));
ret.addIntermediateResultIfUndone(new RemoteResultCommand(null, null, exception, callid,
false, null, getNonFunctionalProperties()));
ret.setFinishedIfUndone();
}
});
}
public void exceptionOccurred(Exception exception)
{
// ret.setResult(new RemoteResultCommand(null, exception, callid, false));
ret.addIntermediateResultIfUndone(new RemoteResultCommand(null, null, exception, callid,
false, null, getNonFunctionalProperties()));
ret.setFinishedIfUndone();
}
});
return ret;
}
/**
* Get the providerid.
* @return the providerid.
*/
public IComponentIdentifier getProviderId()
{
return providerid;
}
/**
* Set the providerid.
* @param providerid The providerid to set.
*/
public void setProviderId(IComponentIdentifier providerid)
{
this.providerid = providerid;
}
// /**
// * Get the manager.
// * @return the manager.
// */
// public ISearchManager getSearchManager()
// {
// return manager;
// }
//
// /**
// * Set the manager.
// * @param manager The manager to set.
// */
// public void setSearchManager(ISearchManager manager)
// {
// this.manager = manager;
// }
//
// /**
// * Get the decider.
// * @return the decider.
// */
// public IVisitDecider getVisitDecider()
// {
// return decider;
// }
//
// /**
// * Set the decider.
// * @param decider The decider to set.
// */
// public void setVisitDecider(IVisitDecider decider)
// {
// this.decider = decider;
// }
//
// /**
// * Get the selector.
// * @return the selector.
// */
// public IResultSelector getResultSelector()
// {
// return selector;
// }
//
// /**
// * Set the selector.
// * @param selector The selector to set.
// */
// public void setResultSelector(IResultSelector selector)
// {
// this.selector = selector;
// }
/**
* Get the callid.
* @return the callid.
*/
public String getCallId()
{
return callid;
}
/**
* Get the caller.
* @return The caller.
*/
public IComponentIdentifier getCaller()
{
return caller;
}
/**
* Set the caller.
* @param caller The caller.
*/
public void setCaller(IComponentIdentifier caller)
{
this.caller = caller;
}
/**
* Get the type.
* @return The type.
*/
public ClassInfo getType()
{
return type;
}
/**
* Set the type.
* @param type The type to set.
*/
public void setType(ClassInfo type)
{
this.type = type;
}
/**
* Get the multiple.
* @return The multiple.
*/
public boolean isMultiple()
{
return multiple;
}
/**
* Set the multiple.
* @param multiple The multiple to set.
*/
public void setMultiple(boolean multiple)
{
this.multiple = multiple;
}
/**
* Get the scope.
* @return The scope.
*/
public String getScope()
{
return scope;
}
/**
* Set the scope.
* @param scope The scope to set.
*/
public void setScope(String scope)
{
this.scope = scope;
}
/**
* Get the filter.
* @return The filter.
*/
public IAsyncFilter getFilter()
{
return filter;
}
/**
* Set the filter.
* @param filter The filter to set.
*/
public void setFilter(IAsyncFilter filter)
{
this.filter = filter;
}
/**
* Set the callid.
* @param callid The callid to set.
*/
public void setCallId(String callid)
{
this.callid = callid;
}
/**
* Get the sender component (if other than rms).
*/
public IComponentIdentifier getSender()
{
return caller;
}
/**
* Get the string representation.
*/
public String toString()
{
return "RemoteSearchCommand [providerid=" + providerid + ", type=" + type + ", multiple=" + multiple + ", scope=" + scope + "]";
}
}
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