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/*
* ============LICENSE_START=======================================================
* policy-management
* ================================================================================
* Copyright (C) 2017-2019 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.controller;
import java.util.List;
import java.util.Properties;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.common.endpoints.event.comm.TopicSource;
import org.onap.policy.drools.protocol.coders.TopicCoderFilterConfiguration;
/**
* Drools Controller Factory to manage controller creation, destruction, and retrieval for
* management interfaces.
*/
public interface DroolsControllerFactory {
/**
* Constructs a Drools Controller based on properties.
*
* @param properties properties containing initialization parameters
* @param eventSources list of event sources
* @param eventSinks list of event sinks
*
* @return the instantiated Drools Controller
* @throws IllegalArgumentException with invalid parameters
* @throws LinkageError Failure to link rules and models in Drools Libraries
*/
public DroolsController build(Properties properties, List<? extends TopicSource> eventSources,
List<? extends TopicSink> eventSinks) throws LinkageError;
/**
* Explicit construction of a Drools Controller.
*
* @param groupId maven group id of drools artifact
* @param artifactId maven artifact id of drools artifact
* @param version maven version id of drools artifact
* @param decoderConfigurations list of decoder configurations
* @param encoderConfigurations list of encoder configurations
*
* @return the instantiated Drools Controller
* @throws IllegalArgumentException with invalid parameters
* @throws LinkageError Failure to link rules and models in Drools Libraries
*/
public DroolsController build(String groupId, String artifactId, String version,
List<TopicCoderFilterConfiguration> decoderConfigurations,
List<TopicCoderFilterConfiguration> encoderConfigurations) throws LinkageError;
/**
* Releases the Drools Controller from operation.
*
* @param controller the Drools Controller to shut down
*/
public void shutdown(DroolsController controller);
/**
* Disables all Drools Controllers from operation.
*/
public void shutdown();
/**
* Destroys and releases resources for a Drools Controller.
*
* @param controller the Drools Controller to destroy
*/
public void destroy(DroolsController controller);
/**
* Destroys all Drools Controllers.
*/
public void destroy();
/**
* Gets the Drools Controller associated with the maven group and artifact id.
*
* @param groupId maven group id of drools artifact
* @param artifactId maven artifact id of drools artifact
* @param version maven version id of drools artifact
*
* @return the Drools Controller
* @throws IllegalArgumentException with invalid parameters
*/
public DroolsController get(String groupId, String artifactId, String version);
/**
* returns the current inventory of Drools Controllers.
*
* @return a list of Drools Controllers
*/
public List<DroolsController> inventory();
}
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