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Diffstat (limited to 'policy-management/src/main/java/org/onap/policy/drools/system/PolicyController.java')
-rw-r--r-- | policy-management/src/main/java/org/onap/policy/drools/system/PolicyController.java | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/policy-management/src/main/java/org/onap/policy/drools/system/PolicyController.java b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyController.java new file mode 100644 index 00000000..e6e1ca7e --- /dev/null +++ b/policy-management/src/main/java/org/onap/policy/drools/system/PolicyController.java @@ -0,0 +1,110 @@ +/*- + * ============LICENSE_START======================================================= + * policy-management + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.drools.system; + +import java.util.List; +import java.util.Properties; + +import org.onap.policy.drools.controller.DroolsController; +import org.onap.policy.drools.event.comm.TopicSource; +import org.onap.policy.drools.event.comm.Topic.CommInfrastructure; +import org.onap.policy.drools.event.comm.TopicSink; +import org.onap.policy.drools.properties.Lockable; +import org.onap.policy.drools.properties.Startable; +import org.onap.policy.drools.protocol.configuration.DroolsConfiguration; + +/** + * A Policy Controller is the higher level unit of control. It corresponds to + * the ncomp equivalent of a controller. It provides management of underlying + * resources associated with the policy controller, which is a) communication + * infrastructure, and b) policy-core (drools) session infrastructure + * + */ +public interface PolicyController extends Startable, Lockable { + + /** + * name of this Policy Controller + */ + public String getName(); + + /** + * Get the topic readers of interest for this controller + */ + public List<? extends TopicSource> getTopicSources(); + + /** + * Get the topic readers of interest for this controller + */ + public List<? extends TopicSink> getTopicSinks(); + + /** + * Get the Drools Controller + */ + public DroolsController getDrools(); + + /** + * update maven configuration + * + * @param newDroolsConfiguration new drools configuration + * @return true if the update was successful, false otherwise + */ + public boolean updateDrools(DroolsConfiguration newDroolsConfiguration); + + /** + * Get the Properties + */ + public Properties getProperties(); + + /** + * Attempts delivering of an String over communication + * infrastructure "busType" + * + * @param eventBus Communication infrastructure identifier + * @param topic topic + * @param event the event object to send + * + * @return true if successful, false if a failure has occurred. + * @throws IllegalArgumentException when invalid or insufficient + * properties are provided + * @throws IllegalStateException when the engine is in a state where + * this operation is not permitted (ie. locked or stopped). + * @throws UnsupportedOperationException when the engine cannot deliver due + * to the functionality missing (ie. communication infrastructure + * not supported. + */ + public boolean deliver(CommInfrastructure busType, String topic, + Object event) + throws IllegalArgumentException, IllegalStateException, + UnsupportedOperationException; + + /** + * halts and permanently releases all resources + * @throws IllegalStateException + */ + public void halt() throws IllegalStateException; + + /** + * Factory that tracks and manages Policy Controllers + */ + public static PolicyControllerFactory factory = + new IndexedPolicyControllerFactory(); + +} |