diff options
Diffstat (limited to 'participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/PolicyHandler.java')
-rw-r--r-- | participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/PolicyHandler.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/PolicyHandler.java b/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/PolicyHandler.java new file mode 100644 index 000000000..d62e5f9f3 --- /dev/null +++ b/participant/participant-impl/participant-impl-policy/src/main/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/PolicyHandler.java @@ -0,0 +1,100 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2021 Nordix Foundation. + * ================================================================================ + * 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.clamp.controlloop.participant.policy.main.handler; + +import java.io.IOException; +import java.util.List; +import java.util.Set; +import javax.ws.rs.core.Response; +import lombok.Getter; +import org.onap.policy.clamp.controlloop.common.handler.ControlLoopHandler; +import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters; +import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.ParticipantPolicyParameters; +import org.onap.policy.common.endpoints.event.comm.TopicSink; +import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher; +import org.onap.policy.common.utils.services.Registry; +import org.onap.policy.models.base.PfModelException; +import org.onap.policy.models.base.PfModelRuntimeException; +import org.onap.policy.models.provider.PolicyModelsProvider; +import org.onap.policy.models.provider.PolicyModelsProviderFactory; + +/** + * This class handles policy participant and control loop elements. + * + * <p/>It is effectively a singleton that is started at system start. + */ +public class PolicyHandler extends ControlLoopHandler { + + private final ParticipantIntermediaryParameters participantParameters; + private final ParticipantPolicyParameters policyParameters; + + @Getter + private PolicyProvider policyProvider; + @Getter + private PolicyModelsProvider databaseProvider; + + /** + * Create a handler. + * + * @param parameters the parameters for access to the database + * @throws PfModelException in case of an exception + */ + public PolicyHandler(ParticipantPolicyParameters parameters) throws PfModelException { + super(parameters.getDatabaseProviderParameters()); + participantParameters = parameters.getIntermediaryParameters(); + policyParameters = parameters; + } + + public static PolicyHandler getInstance() { + return Registry.get(PolicyHandler.class.getName()); + } + + @Override + public Set<Class<?>> getProviderClasses() { + return null; + } + + @Override + public void startProviders() { + try { + policyProvider = new PolicyProvider(participantParameters); + databaseProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider( + policyParameters.getDatabaseProviderParameters()); + } catch (PfModelException e) { + throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Start providers failed ", e); + } + } + + @Override + public void stopProviders() { + try { + policyProvider.close(); + } catch (IOException e) { + throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Stop providers failed ", e); + } + + try { + databaseProvider.close(); + } catch (PfModelException e) { + throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Stop providers failed ", e); + } + } +} |