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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.appc.validationpolicy;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.lang.StringUtils;
import org.onap.appc.domainmodel.lcm.VNFOperation;
import org.onap.appc.validationpolicy.executors.ActionInProgressRuleExecutor;
import org.onap.appc.validationpolicy.executors.RuleExecutor;
import org.onap.appc.validationpolicy.objects.Policy;
import org.onap.appc.validationpolicy.objects.PolicyNames;
import org.onap.appc.validationpolicy.objects.Rule;
import org.onap.appc.validationpolicy.objects.ValidationJSON;
import org.onap.appc.validationpolicy.rules.RuleFactory;
import org.onap.ccsdk.sli.core.dblib.DbLibService;
import javax.sql.rowset.CachedRowSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
/**
* Reads the request validation policy on start-up and provides
* accessors for rule executors
*/
public class RequestValidationPolicy {
private DbLibService dbLibService;
private RuleExecutor actionInProgressRuleExecutor;
private final EELFLogger logger = EELFManager.getInstance().getLogger(RequestValidationPolicy.class);
public void setDbLibService(DbLibService dbLibService) {
this.dbLibService = dbLibService;
}
public void initialize(){
try {
String jsonContent = getPolicyJson();
if (jsonContent == null) return;
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
ValidationJSON validationJSON = objectMapper.readValue(jsonContent, ValidationJSON.class);
List<Policy> policyList = validationJSON.getPolicies();
policyList.stream()
.filter(policy -> PolicyNames.ActionInProgress.name().equals(policy.getPolicyName()))
.forEach(policy -> {
Rule[] ruleDTOs = policy.getRules();
Map<String, org.onap.appc.validationpolicy.rules.Rule> rules = new HashMap<>();
for(Rule ruleDTO : ruleDTOs) {
String action = ruleDTO.getActionReceived();
String validationRule = ruleDTO.getValidationRule();
Set<VNFOperation> inclusionSet = null;
Set<VNFOperation> exclusionSet = null;
if (ruleDTO.getInclusionList() != null && !ruleDTO.getInclusionList().isEmpty()) {
inclusionSet = ruleDTO.getInclusionList().stream()
.map(VNFOperation::findByString).filter(operation -> operation!=null)
.collect(Collectors.toSet());
}
if (ruleDTO.getExclusionList() != null && !ruleDTO.getExclusionList().isEmpty()) {
exclusionSet = ruleDTO.getExclusionList().stream()
.map(VNFOperation::findByString).filter(operation -> operation!=null)
.collect(Collectors.toSet());
}
org.onap.appc.validationpolicy.rules.Rule rule = RuleFactory
.createRule(validationRule, inclusionSet, exclusionSet);
rules.put(action, rule);
}
actionInProgressRuleExecutor = new ActionInProgressRuleExecutor(Collections.unmodifiableMap(rules));
});
} catch (Exception e) {
logger.error("Error reading request validation policies",e);
}
}
protected String getPolicyJson() {
String schema = "sdnctl";
String query = "SELECT MAX(INTERNAL_VERSION),ARTIFACT_CONTENT " +
"FROM ASDC_ARTIFACTS " +
"WHERE ARTIFACT_NAME = ? " +
"GROUP BY ARTIFACT_NAME";
ArrayList<String> arguments = new ArrayList<>();
arguments.add("request_validation_policy");
String jsonContent =null;
try{
CachedRowSet rowSet = dbLibService.getData(query,arguments,schema);
if(rowSet.next()){
jsonContent = rowSet.getString("ARTIFACT_CONTENT");
}
if(logger.isDebugEnabled()){
logger.debug("request validation policy = " + jsonContent);
}
if(StringUtils.isBlank(jsonContent)){
logger.warn("request validation policy not found in app-c database");
}
}
catch(SQLException e){
logger.error("Error accessing database",e);
throw new RuntimeException(e);
}
return jsonContent;
}
public RuleExecutor getInProgressRuleExecutor(){
if(actionInProgressRuleExecutor ==null){
throw new RuntimeException("Rule executor not available, initialization of RequestValidationPolicy failed");
}
return actionInProgressRuleExecutor;
}
}
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