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// This Source Code is in the Public Domain per: http://unlicense.org package org.litesoft.GWT.forms.server.support.nonpublic; import java.util.concurrent.atomic.*; import org.litesoft.GWT.eventbus.client.*; import org.litesoft.GWT.eventbus.server.*; import org.litesoft.GWT.forms.client.rpc.*; import org.litesoft.GWT.forms.server.*; import org.litesoft.*; import org.litesoft.core.simpletypes.*; import java.io.*; import org.litesoft.ui.def.nonpublic.support.*; import org.litesoft.ui.support.*; import org.litesoft.ui_1_5.*; public class FormServicePeerPushInterfaceBusAdapter implements FormComponentBusConstants, EventPackageSubscriber, FormServicePeerEventBusPushInterface, ServerEventBusDisposeListener { private final AtomicReference<EventBus> mEventBus = new AtomicReference<EventBus>(); private final AtomicReference<FormServicePeer> mServicePeer = new AtomicReference<FormServicePeer>(); private final String mFormID; private final String mOurID; public FormServicePeerPushInterfaceBusAdapter( EventBus pEventBus, FormServicePeer pServicePeer, ISystemUserResolver pSystemUserResolver, Long pUniqueFormServicePeerID, FormCreationRequestPackage pPackage, ExternalizationInterface pExternalization, FormAccessControlFactory pFACfactory ) { mEventBus.set( pEventBus ); mServicePeer.set( pServicePeer ); mFormID = pPackage.getSourceName(); mOurID = "FSP" + pEventBus.getNextUniqueID(); FormUsage usage = pPackage.getFormUsage(); Serializable initializationPayload = pPackage.getInitializationPayload(); ServicePeerToFormCreationData zFCD; try { ISystemUser zSystemUser = getSystemUserForFormInteractionData( pEventBus ); zFCD = pServicePeer.initializeAndCreateFormMetaData( this, pSystemUserResolver, pUniqueFormServicePeerID, zSystemUser, usage, initializationPayload, pExternalization, pFACfactory.getBaseFAC( pEventBus ) ); } catch ( RuntimeException e ) { FormServicePeer.LOGGER.error.log( e ); pEventBus.publishIfNotDisposed( new FormCreationResponsePackage( pPackage.getTargetName(), // mFormID, // e.getMessage() ) ); return; } if ( pEventBus instanceof ServerEventBus ) { ((ServerEventBus) pEventBus).addListener( this ); } pEventBus.subscribeAndPublishIfNotDisposed( this, new FormCreationResponsePackage( mOurID, mFormID, zFCD ) ); } private ISystemUser getSystemUserForFormInteractionData( EventBus pEventBus ) { return (pEventBus instanceof AuthenticatedServerEventBus) ? // ((AuthenticatedServerEventBus) pEventBus).getLoggedInUser() : // null; } public EventBus getEventBus() { return mEventBus.get(); } public String getFormID() { return mFormID; } public String getOurID() { return mOurID; } private void releaseResources() { EventBus zEventBus = mEventBus.getAndSet( null ); if ( zEventBus != null ) { zEventBus.unsubscribe( this ); if ( zEventBus instanceof ServerEventBus ) { ((ServerEventBus) zEventBus).removeListener( this ); } } FormServicePeer zServicePeer = mServicePeer.getAndSet( null ); if ( zServicePeer != null ) { zServicePeer.dispose(); } } protected void finalize() throws Throwable { releaseResources(); super.finalize(); } private void sendToForm( EventPackage pPackage ) { EventBus zEventBus = mEventBus.get(); if ( zEventBus != null ) { zEventBus.publishIfNotDisposed( pPackage ); } } // EventPackageSubscriber: public String subscribeWith() { return mOurID; } public void packageReceivedVia( EventPackage pEventPackage, EventBus pEventBus ) { FormServicePeer zServicePeer = mServicePeer.get(); if ( zServicePeer != null ) { try { if ( pEventPackage instanceof FormToServicePeerPackage ) { FormToServicePeerPackage zPackage = (FormToServicePeerPackage) pEventPackage; FormToServicePeerData zData = zPackage.getToServicePeerData(); try { sendUnsolicitedData( zServicePeer.formEvent( zData ) ); } catch ( RuntimeException e ) { sendUnsolicitedData( zData.getAsyncMessageNumber(), "Error processing 'formEvent': " + e.getMessage() ); throw e; } } else if ( pEventPackage instanceof FormValuesRequestPackage ) { FormValuesRequestPackage zPackage = (FormValuesRequestPackage) pEventPackage; Integer zAsyncMessageNumber = zPackage.getAsyncMessageNumber(); try { sendResponseFromRequestValues( zServicePeer.setRootObjectTo( zAsyncMessageNumber, // zPackage.getKey() ) ); } catch ( RuntimeException e ) { sendResponseFromRequestValues( zAsyncMessageNumber, "Error processing 'setRootObjectTo': " + e.getMessage() ); throw e; } } else if ( pEventPackage instanceof FormResourceRequestPackage ) { FormResourceRequestPackage zPackage = (FormResourceRequestPackage) pEventPackage; AttributeResourceOptionsRequestData zRequest = zPackage.getRequest(); try { AttributeResourceOptionsResponseData zResponse = zServicePeer.getResourceOptions( zRequest ); if ( zResponse == null ) { zResponse = new AttributeResourceOptionsResponseData( ResourceOptionsErrorType.ErrorNullReturned ); } sendResponseFromResourceRequest( zRequest, zResponse ); } catch ( RuntimeException e ) { sendResponseFromResourceRequest( zRequest, // new AttributeResourceOptionsResponseData( e.getMessage() ) ); throw e; } } else if ( pEventPackage instanceof FormDisposePackage ) { releaseResources(); } } catch ( RuntimeException e ) { FormServicePeer.LOGGER.error.log( e ); } } } // PushInterface: public void releasedBy( FormServicePeer pFormServicePeer ) { releaseResources(); } public void sendUnsolicitedData( ServicePeerToFormData pServicePeerToFormData ) { if ( pServicePeerToFormData != null ) { sendToForm( ServicePeerToFormPackage.unsolicitedData( mOurID, mFormID, pServicePeerToFormData ) ); } } private void sendResponseFromResourceRequest( AttributeResourceOptionsRequestData pRequest, AttributeResourceOptionsResponseData pResource ) { sendToForm( new FormResourceResponsePackage( mOurID, mFormID, pRequest, pResource ) ); } private void sendResponseFromRequestValues( ServicePeerToFormData pServicePeerToFormData ) { if ( pServicePeerToFormData != null ) { sendToForm( ServicePeerToFormPackage.responseFromRequestValues( mOurID, mFormID, pServicePeerToFormData ) ); } } private void sendResponseFromRequestValues( Integer pAsyncMessageNumber, String pErrorText ) { sendResponseFromRequestValues( createErrorResponse( pAsyncMessageNumber, pErrorText ) ); } private void sendUnsolicitedData( Integer pAsyncMessageNumber, String pErrorText ) { sendUnsolicitedData( createErrorResponse( pAsyncMessageNumber, pErrorText ) ); } private ServicePeerToFormData createErrorResponse( Integer pAsyncMessageNumber, String pErrorText ) { ServicePeerToFormDataCollector collector = new ServicePeerToFormDataCollector(); collector.setAsyncMessageNumber( pAsyncMessageNumber ); collector.addError( pErrorText ); return new ServicePeerToFormData( collector ); } public void init( IServerEventBus pServerEventBus ) { } public void disposing( IServerEventBus pServerEventBus ) { releaseResources(); } } |