149 lines
6.3 KiB
Java
149 lines
6.3 KiB
Java
/*
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* Copyright 2015 dorkbox, llc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dorkbox.messageBus.dispatch;
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import dorkbox.messageBus.error.DeadMessage;
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import dorkbox.messageBus.error.ErrorHandler;
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import dorkbox.messageBus.publication.Publisher;
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import dorkbox.messageBus.subscription.Subscription;
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import dorkbox.messageBus.subscription.SubscriptionManager;
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/**
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* By default, it is the calling thread that has to get the subscriptions, which the sync/async logic then uses.
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*
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* @author dorkbox, llc
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* Date: 2/2/15
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*/
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@SuppressWarnings("Duplicates")
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public
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class DispatchExact implements Dispatch {
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public
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DispatchExact() {
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}
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@Override
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public
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void publish(final Publisher publisher, final ErrorHandler errorHandler, final SubscriptionManager subManager,
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final Object message1) {
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final Class<?> messageClass1 = message1.getClass();
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final Subscription[] subscriptions = subManager.getSubs(messageClass1); // can return null
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Subscription sub;
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int subLength;
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boolean hasSubs = false;
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// Run subscriptions. if the subscriptions are NULL or length == 0, it means we don't have any that were ever subscribed.
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if (subscriptions != null && (subLength = subscriptions.length) > 0) {
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// even though they are non-null, and have length > 0 --- it is still possible the subscription was REMOVED at some point.
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// so there won't be any object/method this publishes to AND there won't be any "dead messages" triggered
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for (int i = 0; i < subLength; i++) {
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sub = subscriptions[i];
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hasSubs |= sub.publish(publisher, errorHandler, message1);
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}
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}
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if (!hasSubs) {
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// Dead Event must EXACTLY MATCH (no subclasses)
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final Subscription[] deadSubscriptions = subManager.getSubs(DeadMessage.class); // can return null
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if (deadSubscriptions != null) {
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final DeadMessage deadMessage = new DeadMessage(message1);
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for (int i = 0; i < deadSubscriptions.length; i++) {
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sub = deadSubscriptions[i];
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sub.publish(publisher, errorHandler, deadMessage);
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}
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}
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}
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}
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@Override
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public
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void publish(final Publisher publisher, final ErrorHandler errorHandler, final SubscriptionManager subManager,
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final Object message1, final Object message2) {
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final Class<?> messageClass1 = message1.getClass();
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final Class<?> messageClass2 = message2.getClass();
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final Subscription[] subscriptions = subManager.getSubs(messageClass1, messageClass2); // can return null
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Subscription sub;
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int subLength;
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boolean hasSubs = false;
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// Run subscriptions. if the subscriptions are NULL or length == 0, it means we don't have any that were ever subscribed.
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if (subscriptions != null && (subLength = subscriptions.length) > 0) {
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// even though they are non-null, and have length > 0 --- it is still possible the subscription was REMOVED at some point.
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// so there won't be any object/method this publishes to AND there won't be any "dead messages" triggered
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for (int i = 0; i < subLength; i++) {
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sub = subscriptions[i];
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hasSubs |= sub.publish(publisher, errorHandler, message1, message2);
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}
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}
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if (!hasSubs) {
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// Dead Event must EXACTLY MATCH (no subclasses)
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final Subscription[] deadSubscriptions = subManager.getSubs(DeadMessage.class); // can return null
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if (deadSubscriptions != null) {
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final DeadMessage deadMessage = new DeadMessage(message1, message2);
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for (int i = 0; i < deadSubscriptions.length; i++) {
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sub = deadSubscriptions[i];
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sub.publish(publisher, errorHandler, deadMessage);
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}
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}
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}
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}
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@Override
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public
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void publish(final Publisher publisher, final ErrorHandler errorHandler, final SubscriptionManager subManager,
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final Object message1, final Object message2, final Object message3) {
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final Class<?> messageClass1 = message1.getClass();
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final Class<?> messageClass2 = message2.getClass();
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final Class<?> messageClass3 = message3.getClass();
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final Subscription[] subscriptions = subManager.getSubs(messageClass1, messageClass2, messageClass3); // can return null
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Subscription sub;
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int subLength;
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boolean hasSubs = false;
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// Run subscriptions. if the subscriptions are NULL or length == 0, it means we don't have any that were ever subscribed.
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if (subscriptions != null && (subLength = subscriptions.length) > 0) {
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// even though they are non-null, and have length > 0 --- it is still possible the subscription was REMOVED at some point.
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// so there won't be any object/method this publishes to AND there won't be any "dead messages" triggered
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for (int i = 0; i < subLength; i++) {
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sub = subscriptions[i];
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hasSubs |= sub.publish(publisher, errorHandler, message1, message2, message3);
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}
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}
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if (!hasSubs) {
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// Dead Event must EXACTLY MATCH (no subclasses)
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final Subscription[] deadSubscriptions = subManager.getSubs(DeadMessage.class); // can return null
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if (deadSubscriptions != null) {
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final DeadMessage deadMessage = new DeadMessage(message1, message2, message3);
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for (int i = 0; i < deadSubscriptions.length; i++) {
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sub = deadSubscriptions[i];
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sub.publish(publisher, errorHandler, deadMessage);
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}
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}
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}
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}
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}
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