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/*
* =============LICENSE_START======================================================
* Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
* Copyright (c) 2022 Wipro Limited 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.dcae.analytics.tca.web.controller;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.stream.Collectors;
import org.onap.dcae.analytics.model.TcaModelConstants;
import org.onap.dcae.analytics.model.common.ConfigSource;
import org.onap.dcae.analytics.tca.core.service.TcaExecutionContext;
import org.onap.dcae.analytics.tca.core.service.TcaResultContext;
import org.onap.dcae.analytics.tca.core.util.TcaUtils;
import org.onap.dcae.analytics.tca.model.policy.TcaPolicy;
import org.onap.dcae.analytics.tca.model.restapi.TcaExecutionRequest;
import org.onap.dcae.analytics.tca.model.restapi.TcaExecutionResponse;
import org.onap.dcae.analytics.tca.web.domain.TcaPolicyWrapper;
import org.onap.dcae.analytics.tca.web.service.TcaProcessingService;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
/**
* @author Rajiv Singla
*/
@RestController
@RequestMapping(TcaModelConstants.TCA_REST_API_PREFIX)
@Api(value = "Provides endpoints for TCA micro service")
public class TcaRestController {
private final TcaProcessingService tcaProcessingService;
private final TcaPolicyWrapper tcaPolicyWrapper;
public TcaRestController(final TcaProcessingService tcaProcessingService,
final TcaPolicyWrapper tcaPolicyWrapper) {
this.tcaProcessingService = tcaProcessingService;
this.tcaPolicyWrapper = tcaPolicyWrapper;
}
@GetMapping(value = TcaModelConstants.TCA_POLICY_ENDPOINT, produces = MediaType.APPLICATION_JSON_VALUE)
@ApiOperation(value = "Provides current TCA Policy")
public ResponseEntity<List<TcaPolicy>> getTcaPolicy() {
return getTcaPolicyResponse(tcaPolicyWrapper);
}
@PostMapping(value = TcaModelConstants.TCA_POLICY_ENDPOINT, produces = MediaType.APPLICATION_JSON_VALUE,
consumes = MediaType.APPLICATION_JSON_VALUE)
@ApiOperation(value = "Sets new value for TCA Policy and returns current Policy")
public ResponseEntity<List<TcaPolicy>> setTcaPolicy(@RequestBody final List<TcaPolicy> tcaPolicy) {
tcaPolicyWrapper.setTcaPolicy(tcaPolicy, ConfigSource.REST_API);
return getTcaPolicyResponse(tcaPolicyWrapper);
}
@PostMapping(value = TcaModelConstants.TCA_EXECUTION_ENDPOINT, produces = MediaType.APPLICATION_JSON_VALUE,
consumes = MediaType.APPLICATION_JSON_VALUE)
@ApiOperation(value = "Applies TCA to provided execution request and generated TCA execution response")
public ResponseEntity<List<TcaExecutionResponse>> execute(@RequestBody final TcaExecutionRequest
tcaExecutionRequest) {
// process tca execution request
final List<TcaExecutionContext> executionContexts = tcaProcessingService.getTcaExecutionResults(
tcaExecutionRequest.getRequestId(), tcaExecutionRequest.getTransactionId(),
tcaPolicyWrapper, TcaUtils.getCefMessagesFromEventListeners
(tcaExecutionRequest.getEventListeners()));
// create execution response
final List<TcaExecutionResponse> tcaExecutionResponses = executionContexts.stream().map(tcaExecutionContext -> {
final TcaExecutionResponse tcaExecutionResponse = new TcaExecutionResponse();
tcaExecutionResponse.setRequestId(tcaExecutionContext.getRequestId());
tcaExecutionResponse.setTransactionId(tcaExecutionContext.getTransactionId());
final TcaResultContext tcaResultContext = tcaExecutionContext.getTcaResultContext();
tcaExecutionResponse.setViolatedMetricsPerEventName(tcaResultContext.getViolatedMetricsPerEventName());
tcaExecutionResponse.setTcaAlert(tcaResultContext.getTcaAlert());
return tcaExecutionResponse;
}).collect(Collectors.toList());
return ResponseEntity.ok().body(tcaExecutionResponses);
}
private static ResponseEntity<List<TcaPolicy>> getTcaPolicyResponse(final TcaPolicyWrapper tcaPolicyWrapper) {
return ResponseEntity.ok()
.header(TcaModelConstants.TCA_POLICY_SOURCE_HEADER_KEY, tcaPolicyWrapper.getConfigSource().name())
.header(TcaModelConstants.TCA_POLICY_CREATION_HEADER_KEY,
tcaPolicyWrapper.getCreationTime().format(DateTimeFormatter.ISO_OFFSET_DATE_TIME))
.header(TcaModelConstants.TCA_POLICY_VERSION_HEADER_KEY, tcaPolicyWrapper.getPolicyVersion())
.body(tcaPolicyWrapper.getTcaPolicy());
}
}
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