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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.GWT.eventbus.client; import org.litesoft.GWT.eventbus.client.nonpublic.*; import org.litesoft.commonfoundation.typeutils.*; import org.litesoft.core.delayed.*; /** * A simple, non-distributed implementation of an event bus. */ public abstract class AbstractSimpleEventBus extends EventBus { protected final SubscriptionManager mSubscriptionManager; protected AbstractSimpleEventBus( TimedRunner pTimedRunner, UnexpectedEventPackageHandler pUnexpectedHandler ) { super( "Simple", 0, pTimedRunner, pUnexpectedHandler ); mSubscriptionManager = new SubscriptionManager( getForm() ); } protected void LLdispose( String pWhy ) { mSubscriptionManager.clear(); super.LLdispose( pWhy ); } protected void LLpublishNonNullNotDisposedExpectingResponse( EventPackage pPackage ) { String sourceName = pPackage.getSourceName(); if ( null == mSubscriptionManager.getListenersFor( sourceName ) ) { throw new IllegalArgumentException( "No Subscribers for '" + sourceName + "' in Event: " + pPackage ); } LLpublish( pPackage ); } protected synchronized void LLsubscribeAndPublish( EventSubscriptionStructure[] pSubscriptions, EventPackage[] pPackages ) { for ( int i = 0; i < pSubscriptions.length; i++ ) { EventSubscriptionStructure structure = pSubscriptions[i]; if ( structure != null ) { mSubscriptionManager.subscribe( structure.getSubscribeWith(), structure.getEventListener() ); } } for ( int i = 0; i < pPackages.length; i++ ) { EventPackage eventPackage = pPackages[i]; if ( eventPackage != null ) { LLpublish( eventPackage ); } } } private void LLpublish( EventPackage pPackage ) { EventPackageListener[] listeners = mSubscriptionManager.getListenersFor( pPackage.getTargetName() ); if ( listeners != null ) { //noinspection ForLoopReplaceableByForEach for ( int i = 0; i < listeners.length; i++ ) { EventPackageListener zListener = listeners[i]; try { zListener.packageReceivedVia( pPackage, this ); } catch ( RuntimeException e ) { handleUnexpectedException( Objects.justClassNameOf( zListener ), e ); } } } } protected synchronized void LLunsubscribe( EventSubscriptionStructure[] pSubscriptions ) { for ( int i = 0; i < pSubscriptions.length; i++ ) { EventSubscriptionStructure structure = pSubscriptions[i]; if ( structure != null ) { mSubscriptionManager.unsubscribe( structure.getSubscribeWith(), structure.getEventListener() ); } } } public EventBus getEventBus( int pClientIdNumber ) { return this; } } |