gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  * Copyright (C) 2019 Bell Canada.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.ccsdk.cds.blueprintsprocessor.functions.config.snapshots.db
  17
  18 import kotlinx.coroutines.Dispatchers
  19 import kotlinx.coroutines.withContext
  20 import org.apache.logging.log4j.util.Strings
  21 import org.onap.ccsdk.cds.blueprintsprocessor.functions.config.snapshots.db.ResourceConfigSnapshot.Status.RUNNING
  22 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintException
  23 import org.slf4j.LoggerFactory
  24 import org.springframework.dao.DataIntegrityViolationException
  25 import org.springframework.stereotype.Service
  26 import java.util.*
  27 import kotlin.NoSuchElementException
  28
  29 /**
  30  * ResourceConfigSnapshot managing service.
  31  *
  32  * @author Serge Simard
  33  * @version 1.0
  34  */
  35 @Service
  36 class ResourceConfigSnapshotService(private val repository: ResourceConfigSnapshotRepository) {
  37
  38     private val log = LoggerFactory.getLogger(ResourceConfigSnapshotService::class.toString())
  39
  40     suspend fun findByResourceIdAndResourceTypeAndStatus(resourceId: String, resourceType: String,
  41                                                          status : ResourceConfigSnapshot.Status = RUNNING): String =
  42             withContext(Dispatchers.IO) {
  43                 repository.findByResourceIdAndResourceTypeAndStatus(resourceId, resourceType, status)
  44                         ?.config_snapshot ?: Strings.EMPTY
  45             }
  46
  47     suspend fun write(snapshot: String, resId: String, resType: String,
  48                       status: ResourceConfigSnapshot.Status = RUNNING) : ResourceConfigSnapshot =
  49             withContext(Dispatchers.IO) {
  50
  51                 val resourceConfigSnapshotEntry = ResourceConfigSnapshot()
  52                 resourceConfigSnapshotEntry.id = UUID.randomUUID().toString()
  53                 resourceConfigSnapshotEntry.resourceId = resId
  54                 resourceConfigSnapshotEntry.resourceType = resType
  55                 resourceConfigSnapshotEntry.status = status
  56                 resourceConfigSnapshotEntry.config_snapshot = snapshot
  57
  58                 // Overwrite configuration snapshot entry of resId/resType
  59                 if (resId.isNotEmpty() && resType.isNotEmpty()) {
  60                     repository.findByResourceIdAndResourceTypeAndStatus(resId, resType, status)?.
  61                         let {
  62                             log.info("Overwriting configuration snapshot entry for resourceId=($resId), " +
  63                                 "resourceType=($resType), status=($status)")
  64                             repository.deleteByResourceIdAndResourceTypeAndStatus(resId, resType, status)
  65                         }
  66                 }
  67                 var storedSnapshot: ResourceConfigSnapshot
  68                 try {
  69                     storedSnapshot = repository.saveAndFlush(resourceConfigSnapshotEntry)
  70                     log.info("Stored configuration snapshot for resourceId=($resId), " +
  71                             "resourceType=($resType), status=($status), " +
  72                             "dated=(${storedSnapshot.createdDate})")
  73                 } catch (ex: DataIntegrityViolationException) {
  74                     throw BluePrintException("Failed to store configuration snapshot entry.", ex)
  75                 }
  76                 storedSnapshot
  77             }
  78 }