diff options
Diffstat (limited to 'runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringHandler.java')
-rw-r--r-- | runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringHandler.java | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringHandler.java b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringHandler.java new file mode 100644 index 000000000..a7ad9180a --- /dev/null +++ b/runtime-controlloop/src/main/java/org/onap/policy/clamp/controlloop/runtime/monitoring/MonitoringHandler.java @@ -0,0 +1,84 @@ +/*- + * ============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.runtime.monitoring; + +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.runtime.main.parameters.ClRuntimeParameterGroup; +import org.onap.policy.clamp.controlloop.runtime.monitoring.rest.MonitoringQueryController; +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 monitoring of control loop definitions, + * so only one object of this type should be built at a time. + * + * <p/> + * It is effectively a singleton that is started at system start. + */ +public class MonitoringHandler extends ControlLoopHandler { + + @Getter + private MonitoringProvider monitoringProvider; + + /** + * Gets the Monitoring Handler. + * + * @return MonitoringHandler + */ + public static MonitoringHandler getInstance() { + return Registry.get(MonitoringHandler.class.getName()); + } + + /** + * Create a handler. + * + * @param controlLoopParameters the parameters for access to the database + */ + public MonitoringHandler(ClRuntimeParameterGroup controlLoopParameters) { + super(controlLoopParameters.getDatabaseProviderParameters()); + } + + @Override + public Set<Class<?>> getProviderClasses() { + return Set.of(MonitoringQueryController.class); + } + + @Override + public void startProviders() { + monitoringProvider = new MonitoringProvider(getDatabaseProviderParameters()); + } + + @Override + public void stopProviders() { + try { + monitoringProvider.close(); + } catch (IOException e) { + throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Cannot stop provider", e); + } + } +} |