1 files changed, 193 insertions, 0 deletions
diff --git a/main/src/main/java/org/onap/policy/pap/main/service/PolicyAuditService.java b/main/src/main/java/org/onap/policy/pap/main/service/PolicyAuditService.java
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@@ -0,0 +1,193 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.main.service;
+
+import java.time.Instant;
+import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
+import javax.ws.rs.core.Response;
+import lombok.NonNull;
+import lombok.RequiredArgsConstructor;
+import org.onap.policy.common.parameters.BeanValidationResult;
+import org.onap.policy.models.base.PfModelRuntimeException;
+import org.onap.policy.models.pap.concepts.PolicyAudit;
+import org.onap.policy.models.pap.persistence.concepts.JpaPolicyAudit;
+import org.onap.policy.pap.main.repository.PolicyAuditRepository;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class PolicyAuditService {
+
+    private static final Integer DEFAULT_MAX_RECORDS = 100;
+    private static final Integer DEFAULT_MIN_RECORDS = 10;
+
+    private final PolicyAuditRepository policyAuditRepository;
+
+    /**
+     * Create audit records.
+     *
+     * @param audits list of policy audit
+     */
+    public void createAuditRecords(@NonNull final List<PolicyAudit> audits) {
+        List<JpaPolicyAudit> jpaAudits = audits.stream().map(JpaPolicyAudit::new).collect(Collectors.toList());
+
+        var result = new BeanValidationResult("createAuditRecords", jpaAudits);
+
+        var count = 0;
+        for (JpaPolicyAudit jpaAudit : jpaAudits) {
+            result.addResult(jpaAudit.validate(String.valueOf(count++)));
+        }
+
+        if (!result.isValid()) {
+            throw new PfModelRuntimeException(Response.Status.BAD_REQUEST, result.getResult());
+        }
+
+        policyAuditRepository.saveAll(jpaAudits);
+    }
+
+    /**
+     * Collect the audit records.
+     *
+     * @param recordCount the number of records to return
+     * @param startTime start time of the records to be returned
+     * @param endTime end time of the records to be returned
+     * @return list of {@link PolicyAudit} records found
+     */
+    public List<PolicyAudit> getAuditRecords(int recordCount, Instant startTime, Instant endTime) {
+        Pageable recordSize = getRecordSize(recordCount);
+        if (startTime != null && endTime != null) {
+            return asPolicyAuditList(
+                policyAuditRepository.findByTimeStampBetween(Date.from(startTime), Date.from(endTime), recordSize));
+        } else if (startTime == null && endTime == null) {
+            return asPolicyAuditList(policyAuditRepository.findAll(recordSize).toList());
+        } else if (startTime != null) {
+            return asPolicyAuditList(
+                policyAuditRepository.findByTimeStampGreaterThanEqual(Date.from(startTime), recordSize));
+        } else {
+            return asPolicyAuditList(
+                policyAuditRepository.findByTimeStampLessThanEqual(Date.from(endTime), recordSize));
+        }
+    }
+
+    /**
+     * Collect the audit records.
+     *
+     * @param pdpGroup the name of the group
+     * @param recordCount the number of records to return
+     * @param startTime start time of the records to be returned
+     * @param endTime end time of the records to be returned
+     * @return list of {@link PolicyAudit} records found
+     */
+    public List<PolicyAudit> getAuditRecords(String pdpGroup, int recordCount, Instant startTime, Instant endTime) {
+        Pageable recordSize = getRecordSize(recordCount);
+        if (startTime != null && endTime != null) {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroupAndTimeStampBetween(pdpGroup,
+                Date.from(startTime), Date.from(endTime), recordSize));
+        } else if (startTime == null && endTime == null) {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroup(pdpGroup, recordSize));
+        } else if (startTime != null) {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroupAndTimeStampGreaterThanEqual(pdpGroup,
+                Date.from(startTime), recordSize));
+        } else {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroupAndTimeStampLessThanEqual(pdpGroup,
+                Date.from(endTime), recordSize));
+        }
+    }
+
+    /**
+     * Collect the audit records.
+     *
+     * @param pdpGroup the name of the group
+     * @param policyName the name of the policy
+     * @param policyVersion the version of the policy
+     * @param recordCount the number of records to return
+     * @param startTime start time of the records to be returned
+     * @param endTime end time of the records to be returned
+     * @return list of {@link PolicyAudit} records found
+     */
+    public List<PolicyAudit> getAuditRecords(String pdpGroup, String policyName, String policyVersion, int recordCount,
+        Instant startTime, Instant endTime) {
+        Pageable recordSize = getRecordSize(recordCount);
+        if (startTime != null && endTime != null) {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroupAndKeyNameAndKeyVersionAndTimeStampBetween(
+                pdpGroup, policyName, policyVersion, Date.from(startTime), Date.from(endTime), recordSize));
+        } else if (startTime == null && endTime == null) {
+            return asPolicyAuditList(policyAuditRepository.findByPdpGroupAndKeyNameAndKeyVersion(pdpGroup, policyName,
+                policyVersion, recordSize));
+        } else if (startTime != null) {
+            return asPolicyAuditList(
+                policyAuditRepository.findByPdpGroupAndKeyNameAndKeyVersionAndTimeStampGreaterThanEqual(pdpGroup,
+                    policyName, policyVersion, Date.from(startTime), recordSize));
+        } else {
+            return asPolicyAuditList(
+                policyAuditRepository.findByPdpGroupAndKeyNameAndKeyVersionAndTimeStampLessThanEqual(pdpGroup,
+                    policyName, policyVersion, Date.from(endTime), recordSize));
+        }
+    }
+
+    /**
+     * Collect the audit records.
+     *
+     * @param policyName the name of the policy
+     * @param policyVersion the version of the policy
+     * @param recordCount the number of records to return
+     * @param startTime start time of the records to be returned
+     * @param endTime end time of the records to be returned
+     * @return list of {@link PolicyAudit} records found
+     */
+    public List<PolicyAudit> getAuditRecords(String policyName, String policyVersion, int recordCount,
+        Instant startTime, Instant endTime) {
+        Pageable recordSize = getRecordSize(recordCount);
+        if (startTime != null && endTime != null) {
+            return asPolicyAuditList(policyAuditRepository.findByKeyNameAndKeyVersionAndTimeStampBetween(policyName,
+                policyVersion, Date.from(startTime), Date.from(endTime), recordSize));
+        } else if (startTime == null && endTime == null) {
+            return asPolicyAuditList(
+                policyAuditRepository.findByKeyNameAndKeyVersion(policyName, policyVersion, recordSize));
+        } else if (startTime != null) {
+            return asPolicyAuditList(policyAuditRepository.findByKeyNameAndKeyVersionAndTimeStampGreaterThanEqual(
+                policyName, policyVersion, Date.from(startTime), recordSize));
+        } else {
+            return asPolicyAuditList(policyAuditRepository.findByKeyNameAndKeyVersionAndTimeStampLessThanEqual(
+                policyName, policyVersion, Date.from(endTime), recordSize));
+        }
+    }
+
+    private Pageable getRecordSize(int recordCount) {
+        if (recordCount < 1) {
+            recordCount = DEFAULT_MIN_RECORDS;
+        } else if (recordCount > DEFAULT_MAX_RECORDS) {
+            recordCount = DEFAULT_MAX_RECORDS;
+        }
+        return PageRequest.of(0, recordCount, Sort.by("timeStamp").descending());
+    }
+
+    private List<PolicyAudit> asPolicyAuditList(List<JpaPolicyAudit> jpaPolicyAuditList) {
+        return jpaPolicyAuditList.stream().map(JpaPolicyAudit::toAuthorative).collect(Collectors.toList());
+    }
+}