diff options
Diffstat (limited to 'participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java')
-rw-r--r-- | participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java new file mode 100644 index 000000000..1963e38b1 --- /dev/null +++ b/participant/participant-impl/participant-impl-dcae/src/main/java/org/onap/policy/clamp/controlloop/participant/dcae/main/handler/DcaeHandler.java @@ -0,0 +1,82 @@ +/*- + * ============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.dcae.main.handler; + +import java.io.IOException; +import java.util.Collections; +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.dcae.main.parameters.ParticipantDcaeParameters; +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.PfModelRuntimeException; + +/** + * This class handles dcae of participants and control loop elements. + * + * </p> + * It is effectively a singleton that is started at system start. + */ +public class DcaeHandler extends ControlLoopHandler { + + private final ParticipantDcaeParameters parameters; + @Getter + private DcaeProvider dcaeProvider; + + /** + * Create a handler. + * + * @param parameters the parameters for access to the database + */ + public DcaeHandler(ParticipantDcaeParameters parameters) { + super(parameters.getDatabaseProviderParameters()); + this.parameters = parameters; + } + + public static DcaeHandler getInstance() { + return Registry.get(DcaeHandler.class.getName()); + } + + @Override + public Set<Class<?>> getProviderClasses() { + return Collections.emptySet(); + } + + @Override + public void startProviders() { + dcaeProvider = new DcaeProvider(parameters); + } + + @Override + public void stopProviders() { + try { + dcaeProvider.close(); + } catch (IOException e) { + throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, e.getMessage()); + } finally { + dcaeProvider = null; + } + } +} |