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/*
* ============LICENSE_START=======================================================
* ONAP PAP
* ================================================================================
* Copyright (C) 2019, 2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2021-2023 Nordix Foundation.
* Modifications Copyright (C) 2021-2022 Bell Canada. 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.policy.pap.main.rest;
import com.google.re2j.PatternSyntaxException;
import java.util.Collection;
import java.util.UUID;
import lombok.RequiredArgsConstructor;
import org.onap.policy.models.base.PfModelRuntimeException;
import org.onap.policy.models.pap.concepts.PolicyStatus;
import org.onap.policy.models.pdp.concepts.PdpPolicyStatus;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifierOptVersion;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RestController;
/**
* Class to provide REST end points for PAP component to retrieve the status of deployed
* policies.
*/
@RestController
@RequiredArgsConstructor
public class PolicyStatusControllerV1 extends PapRestControllerV1 implements PolicyStatusControllerV1Api {
private static final String EMPTY_REGEX_ERROR_MESSAGE = "An empty string passed as a regex is not allowed";
private static final String EMPTY_REGEX_WARNING = ". Empty string passed as Regex.";
private static final String GET_DEPLOYMENTS_FAILED = "get deployments failed";
private static final Logger logger = LoggerFactory.getLogger(PolicyStatusControllerV1.class);
private final PolicyStatusProvider provider;
/**
* Queries status of all deployed policies. If regex is not null or empty, the function will only return
* policies that match regex
*
* @param requestId request ID used in ONAP logging
* @param regex regex for a policy name
* @return a response
*/
@Override
public ResponseEntity<Object> queryAllDeployedPolicies(UUID requestId, String regex) {
try {
final Collection<PolicyStatus> result;
if (regex == null) {
result = provider.getStatus();
} else if (regex.isBlank()) {
return makeRegexNotFoundResponse(requestId);
} else {
result = provider.getByRegex(regex);
}
return makeListOrNotFoundResponse(requestId, result);
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
} catch (PatternSyntaxException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.status(HttpStatus.BAD_REQUEST)), requestId)
.body(e.getMessage());
}
}
/**
* Queries status of specific deployed policies.
*
* @param requestId request ID used in ONAP logging
* @return a response
*/
@Override
public ResponseEntity<Object> queryDeployedPolicies(String name, UUID requestId) {
try {
Collection<PolicyStatus> result = provider.getStatus(new ToscaConceptIdentifierOptVersion(name, null));
if (result.isEmpty()) {
return makeNotFoundResponse(requestId);
} else {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId).body(result);
}
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
}
}
/**
* Queries status of a specific deployed policy.
*
* @param requestId request ID used in ONAP logging
* @return a response
*/
@Override
public ResponseEntity<Object> queryDeployedPolicy(String name, String version, UUID requestId) {
try {
Collection<PolicyStatus> result = provider.getStatus(new ToscaConceptIdentifierOptVersion(name, version));
if (result.isEmpty()) {
return makeNotFoundResponse(requestId);
} else {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId)
.body(result.iterator().next());
}
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
}
}
/**
* Queries status of all policies.
*
* @param requestId request ID used in ONAP logging
* @return a response
*/
@Override
public ResponseEntity<Object> getStatusOfAllPolicies(UUID requestId) {
try {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId)
.body(provider.getPolicyStatus());
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
}
}
/**
* Queries status of policies in a specific PdpGroup. if regex is not null or empty, the function will only return
* policies that match regex
*
* @param pdpGroupName name of the PdpGroup
* @param requestId request ID used in ONAP logging
* @param regex regex for a policy name
* @return a response
*/
@Override
public ResponseEntity<Object> getStatusOfPoliciesByGroup(
String pdpGroupName,
UUID requestId,
String regex) {
try {
final Collection<PdpPolicyStatus> result;
if (regex == null) {
result = provider.getPolicyStatus(pdpGroupName);
} else if (regex.isBlank()) {
return makeRegexNotFoundResponse(requestId);
} else {
result = provider.getPolicyStatusByRegex(pdpGroupName, regex);
}
return makeListOrNotFoundResponse(requestId, result);
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
} catch (PatternSyntaxException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.status(HttpStatus.BAD_REQUEST)), requestId)
.body(e.getMessage());
}
}
/**
* Queries status of all versions of a specific policy in a specific PdpGroup.
*
* @param pdpGroupName name of the PdpGroup
* @param policyName name of the Policy
* @param requestId request ID used in ONAP logging
* @return a response
*/
@Override
public ResponseEntity<Object> getStatusOfPolicies(
String pdpGroupName,
String policyName,
UUID requestId) {
try {
Collection<PdpPolicyStatus> result =
provider.getPolicyStatus(pdpGroupName, new ToscaConceptIdentifierOptVersion(policyName, null));
if (result.isEmpty()) {
return makeNotFoundResponse(requestId);
} else {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId)
.body(result);
}
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
}
}
/**
* Queries status of a specific version of a specific policy in a specific PdpGroup.
*
* @param pdpGroupName name of the PdpGroup
* @param policyName name of the Policy
* @param policyVersion version of the Policy
* @param requestId request ID used in ONAP logging
* @return a response
*/
@Override
public ResponseEntity<Object> getStatusOfPolicy(
String pdpGroupName,
String policyName,
String policyVersion,
UUID requestId) {
try {
Collection<PdpPolicyStatus> result = provider.getPolicyStatus(pdpGroupName,
new ToscaConceptIdentifierOptVersion(policyName, policyVersion));
if (result.isEmpty()) {
return makeNotFoundResponse(requestId);
} else {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId)
.body(result.iterator().next());
}
} catch (PfModelRuntimeException e) {
logger.warn(GET_DEPLOYMENTS_FAILED, e);
return addLoggingHeaders(
addVersionControlHeaders(ResponseEntity.status(e.getErrorResponse().getResponseCode().getStatusCode())),
requestId).body(e.getErrorResponse().getErrorMessage());
}
}
/**
* Makes a "not found" response.
*
* @param requestId request ID
* @return a "not found" response
*/
private ResponseEntity<Object> makeNotFoundResponse(final UUID requestId) {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.status(HttpStatus.NOT_FOUND)), requestId)
.build();
}
private ResponseEntity<Object> makeRegexNotFoundResponse(UUID requestId) {
logger.warn(GET_DEPLOYMENTS_FAILED + EMPTY_REGEX_WARNING);
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.status(HttpStatus.BAD_REQUEST)),
requestId).body(EMPTY_REGEX_ERROR_MESSAGE);
}
private ResponseEntity<Object> makeListOrNotFoundResponse(UUID requestId, Collection<?> result) {
if (result.isEmpty()) {
return makeNotFoundResponse(requestId);
} else {
return addLoggingHeaders(addVersionControlHeaders(ResponseEntity.ok()), requestId).body(result);
}
}
}
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