cps-ri/src/main/java/org/onap/cps/spi/impl/ModelPersistenceServiceImpl.java

   1 /*
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2020 Nordix Foundation
   4  *  Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
   5  *  ================================================================================
   6  *  Licensed under the Apache License, Version 2.0 (the "License");
   7  *  you may not use this file except in compliance with the License.
   8  *  You may obtain a copy of the License at
   9  *
  10  *        http://www.apache.org/licenses/LICENSE-2.0
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.spi.impl;
  22
  23 import static org.onap.cps.exceptions.CpsExceptionBuilder.duplicateSchemaSetException;
  24 import static org.onap.cps.exceptions.CpsExceptionBuilder.invalidDataspaceException;
  25
  26 import com.google.common.collect.ImmutableSet;
  27 import java.util.List;
  28 import java.util.Map;
  29 import java.util.Set;
  30 import java.util.stream.Collectors;
  31 import javax.transaction.Transactional;
  32 import org.onap.cps.spi.ModelPersistenceService;
  33 import org.onap.cps.spi.entities.Dataspace;
  34 import org.onap.cps.spi.entities.SchemaSet;
  35 import org.onap.cps.spi.entities.YangResource;
  36 import org.onap.cps.spi.repository.DataspaceRepository;
  37 import org.onap.cps.spi.repository.SchemaSetRepository;
  38 import org.onap.cps.spi.repository.YangResourceRepository;
  39 import org.springframework.beans.factory.annotation.Autowired;
  40 import org.springframework.dao.DataIntegrityViolationException;
  41 import org.springframework.stereotype.Component;
  42 import org.springframework.util.DigestUtils;
  43
  44 @Component
  45 public class ModelPersistenceServiceImpl implements ModelPersistenceService {
  46
  47     @Autowired
  48     private YangResourceRepository yangResourceRepository;
  49
  50     @Autowired
  51     private SchemaSetRepository schemaSetRepository;
  52
  53     @Autowired
  54     private DataspaceRepository dataspaceRepository;
  55
  56     @Override
  57     public void storeModule(final String namespace, final String moduleContent, final String revision,
  58                             final String dataspaceName) {
  59         // TODO this method should be removed as obsolete.
  60         // Modules to be processed within schema sets only.
  61     }
  62
  63     @Override
  64     @Transactional
  65     public void storeSchemaSet(final String dataspaceName, final String schemaSetName,
  66                                final Set<String> yangResourcesAsStrings) {
  67
  68         final Dataspace dataspace = dataspaceRepository.findByName(dataspaceName)
  69             .orElseThrow(() -> invalidDataspaceException(dataspaceName));
  70
  71         final Set<YangResource> yangResources = synchronizeYangResources(yangResourcesAsStrings);
  72         final SchemaSet schemaSet = new SchemaSet();
  73         schemaSet.setName(schemaSetName);
  74         schemaSet.setDataspace(dataspace);
  75         schemaSet.setYangResources(yangResources);
  76         try {
  77             schemaSetRepository.save(schemaSet);
  78         } catch (final DataIntegrityViolationException e) {
  79             throw duplicateSchemaSetException(dataspaceName, schemaSetName);
  80         }
  81     }
  82
  83     private Set<YangResource> synchronizeYangResources(final Set<String> yangResourcesAsStrings) {
  84         final Map<String, String> checksumToContentMap = yangResourcesAsStrings.stream()
  85             .collect(Collectors.toMap(
  86                 content -> DigestUtils.md5DigestAsHex(content.getBytes()),
  87                 content -> content)
  88             );
  89
  90         final List<YangResource> existingYangResources =
  91             yangResourceRepository.findAllByChecksumIn(checksumToContentMap.keySet());
  92         existingYangResources.forEach(yangFile -> checksumToContentMap.remove(yangFile.getChecksum()));
  93
  94         final List<YangResource> newYangResources = checksumToContentMap.entrySet().stream()
  95             .map(entry -> {
  96                 final YangResource yangResource = new YangResource();
  97                 yangResource.setChecksum(entry.getKey());
  98                 yangResource.setContent(entry.getValue());
  99                 return yangResource;
 100             }).collect(Collectors.toList());
 101         if (!newYangResources.isEmpty()) {
 102             yangResourceRepository.saveAll(newYangResources);
 103         }
 104
 105         return ImmutableSet.<YangResource>builder()
 106             .addAll(existingYangResources)
 107             .addAll(newYangResources)
 108             .build();
 109     }
 110
 111 }