/*
 * Copyright 2020 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kie.kogito.dmn.springboot.example.listener;

import org.kie.kogito.dmn.config.CachedDecisionEventListenerConfig;
import org.springframework.stereotype.Component;

/**
 * This class demonstrates one of the two methods offered by Kogito to inject custom
 * {@link org.kie.dmn.api.core.event.DMNRuntimeEventListener}s in its internal {@link org.kie.dmn.api.core.DMNRuntime}.
 * <p>
 * It works by creating a bean that implements {@link org.kie.kogito.decision.DecisionEventListenerConfig} interface
 * (which returns the list of desired instances in the {@link org.kie.kogito.decision.DecisionEventListenerConfig#listeners()}
 * method) and annotating it with {@link Component}.
 * <p>
 * We're extending {@link CachedDecisionEventListenerConfig} instead of implementing the interface directly
 * only because the intermediate class provides a utility method to register listener instances. This is the
 * suggested way if the Config class is not supposed to contain any extra logic.
 * <p>
 * The second injection method is explained in {@link ExampleDMNRuntimeEventListener}.
 * All the listeners instantiated with both methods will be injected during the application startup phase.
 */
@Component
public class ExampleDecisionEventListenerConfig extends CachedDecisionEventListenerConfig {

    public ExampleDecisionEventListenerConfig() {
        register(new LoggingDMNRuntimeEventListener("ExampleDecisionEventListenerConfig's inner listener #1"));
        register(new LoggingDMNRuntimeEventListener("ExampleDecisionEventListenerConfig's inner listener #2"));
    }

}
