/**
*
*/
package com.thinkbiganalytics.metadata.sla.spi;
/*-
* #%L
* thinkbig-sla-api
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* 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.
* #L%
*/
import com.thinkbiganalytics.metadata.sla.api.Metric;
import com.thinkbiganalytics.metadata.sla.api.Obligation;
import com.thinkbiganalytics.metadata.sla.api.ServiceLevelAgreement;
import com.thinkbiganalytics.metadata.sla.api.ServiceLevelAssessment;
import java.io.Serializable;
/**
* A service for producing assessments SLAs. It is also used to register obligation and metric assessors
* that may be delegated the responsibility of producing assessments of their associated obligation/metric types.
*/
public interface ServiceLevelAssessor {
/**
* Produces an assessment instance of an SLA, delegating to any registered assessors as necessary.
*
* @param sla the SLA to be assessed
* @return an assessment of the SLA
*/
ServiceLevelAssessment assess(ServiceLevelAgreement sla);
ServiceLevelAssessment findLatestAssessment(ServiceLevelAgreement sla);
/**
* Registers an assessor of obligations that match its expected obligation type.
*
* @param assessor the assessor
* @return the same assessor (aids registration of new assessor beans in spring by providing this method as a factory method)
*/
ObligationAssessor<? extends Obligation> registerObligationAssessor(ObligationAssessor<? extends Obligation> assessor);
/**
* Registers an assessor of metrics that match its expected obligation type.
*
* @param assessor the assessor
* @return the same assessor (aids registration of new assessor beans in spring by providing this method as a factory method)
*/
MetricAssessor<? extends Metric, ? extends Serializable> registerMetricAssessor(MetricAssessor<? extends Metric, ? extends Serializable> assessor);
}