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Diffstat (limited to 'services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/ApexEventConsumer.java')
-rw-r--r-- | services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/ApexEventConsumer.java | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/ApexEventConsumer.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/ApexEventConsumer.java new file mode 100644 index 000000000..53f11dd61 --- /dev/null +++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/event/ApexEventConsumer.java @@ -0,0 +1,80 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.service.engine.event; + +import org.onap.policy.apex.service.parameters.eventhandler.EventHandlerParameters; +import org.onap.policy.apex.service.parameters.eventhandler.EventHandlerPeeredMode; + +/** + * This interface is used by technology specific consumers and listeners that are are listening for + * or collecting events for input into Apex. Users specify the consumer technology to use in the + * Apex configuration and Apex uses a factory to start the appropriate consumer plugin that + * implements this interface for its input. The technology specific implementation details are + * hidden behind this interface. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface ApexEventConsumer { + /** + * Initialize the consumer. + * + * @param name a name for this consumer + * @param consumerParameters the parameters to initialize this consumer + * @param apexEventReceiver the apex event receiver that should be used to pass events received + * by the consumer into Apex + * @throws ApexEventException container exception on errors initializing event handling + */ + void init(String name, EventHandlerParameters consumerParameters, ApexEventReceiver apexEventReceiver) + throws ApexEventException; + + /** + * Start the consumer, start input of events into Apex. + */ + void start(); + + /** + * Get the peered reference object for this consumer. + * + * @param peeredMode the peered mode for which to return the reference + * @return the peered reference object for this consumer + */ + PeeredReference getPeeredReference(EventHandlerPeeredMode peeredMode); + + /** + * Set the peered reference object for this consumer. + * + * @param peeredMode the peered mode for which to return the reference + * @param peeredReference the peered reference object for this consumer + */ + void setPeeredReference(EventHandlerPeeredMode peeredMode, PeeredReference peeredReference); + + /** + * Get the name of this event consumer. + * + * @return the event consumer name + */ + String getName(); + + /** + * Stop the event consumer. + */ + void stop(); +} |