cps-ri/src/main/java/org/onap/cps/spi/impl/CpsModulePersistenceServiceImpl.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 com.google.common.collect.ImmutableSet;
  24 import java.io.IOException;
  25 import java.util.Collection;
  26 import java.util.List;
  27 import java.util.Map;
  28 import java.util.Set;
  29 import java.util.stream.Collectors;
  30 import javax.transaction.Transactional;
  31 import org.onap.cps.spi.CpsModulePersistenceService;
  32 import org.onap.cps.spi.entities.Dataspace;
  33 import org.onap.cps.spi.entities.SchemaSet;
  34 import org.onap.cps.spi.entities.YangResource;
  35 import org.onap.cps.spi.exceptions.CpsException;
  36 import org.onap.cps.spi.exceptions.ModelValidationException;
  37 import org.onap.cps.spi.exceptions.SchemaSetAlreadyDefinedException;
  38 import org.onap.cps.spi.model.ModuleReference;
  39 import org.onap.cps.spi.repository.DataspaceRepository;
  40 import org.onap.cps.spi.repository.SchemaSetRepository;
  41 import org.onap.cps.spi.repository.YangResourceRepository;
  42 import org.onap.cps.yang.YangTextSchemaSourceSet;
  43 import org.onap.cps.yang.YangTextSchemaSourceSetBuilder;
  44 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
  45 import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
  46 import org.springframework.beans.factory.annotation.Autowired;
  47 import org.springframework.dao.DataIntegrityViolationException;
  48 import org.springframework.stereotype.Component;
  49 import org.springframework.util.DigestUtils;
  50
  51 @Component
  52 public class CpsModulePersistenceServiceImpl implements CpsModulePersistenceService {
  53
  54     @Autowired
  55     private YangResourceRepository yangResourceRepository;
  56
  57     @Autowired
  58     private SchemaSetRepository schemaSetRepository;
  59
  60     @Autowired
  61     private DataspaceRepository dataspaceRepository;
  62
  63     @Override
  64     public void storeModule(final String namespace, final String moduleContent, final String revision,
  65                             final String dataspaceName) {
  66         // TODO this method should be removed as obsolete.
  67         // Modules to be processed within schema sets only.
  68     }
  69
  70     @Override
  71     @Transactional
  72     public void storeSchemaSet(final String dataspaceName, final String schemaSetName,
  73                                final Map<String, String> yangResourcesNameToContentMap) {
  74
  75         final Dataspace dataspace = dataspaceRepository.getByName(dataspaceName);
  76         final Set<YangResource> yangResources = synchronizeYangResources(yangResourcesNameToContentMap);
  77         final SchemaSet schemaSet = new SchemaSet();
  78         schemaSet.setName(schemaSetName);
  79         schemaSet.setDataspace(dataspace);
  80         schemaSet.setYangResources(yangResources);
  81         try {
  82             schemaSetRepository.save(schemaSet);
  83         } catch (final DataIntegrityViolationException e) {
  84             throw new SchemaSetAlreadyDefinedException(dataspaceName, schemaSetName, e);
  85         }
  86     }
  87
  88     private Set<YangResource> synchronizeYangResources(final Map<String, String> yangResourcesNameToContentMap) {
  89         final Map<String, YangResource> checksumToEntityMap = yangResourcesNameToContentMap.entrySet().stream()
  90             .map(entry -> {
  91                 final YangResource yangResource = new YangResource();
  92                 yangResource.setName(entry.getKey());
  93                 yangResource.setContent(entry.getValue());
  94                 yangResource.setChecksum(DigestUtils.md5DigestAsHex(entry.getValue().getBytes()));
  95                 return yangResource;
  96             })
  97             .collect(Collectors.toMap(
  98                 YangResource::getChecksum,
  99                 entity -> entity
 100             ));
 101
 102         final List<YangResource> existingYangResources =
 103             yangResourceRepository.findAllByChecksumIn(checksumToEntityMap.keySet());
 104         existingYangResources.forEach(yangFile -> checksumToEntityMap.remove(yangFile.getChecksum()));
 105
 106         final Collection<YangResource> newYangResources = checksumToEntityMap.values();
 107         if (!newYangResources.isEmpty()) {
 108             yangResourceRepository.saveAll(newYangResources);
 109         }
 110
 111         return ImmutableSet.<YangResource>builder()
 112             .addAll(existingYangResources)
 113             .addAll(newYangResources)
 114             .build();
 115     }
 116
 117     @Override
 118     public Collection<ModuleReference> getModuleReferences(final String dataspaceName, final String schemaSetName) {
 119         final Dataspace dataspace = dataspaceRepository.getByName(dataspaceName);
 120         final SchemaSet schemaSet = schemaSetRepository.getByDataspaceAndName(dataspace, schemaSetName);
 121         final Map<String, String> yangResourceNameToContent = schemaSet.getYangResources().stream().collect(
 122                 Collectors.toMap(YangResource::getName, YangResource::getContent));
 123         try {
 124             final YangTextSchemaSourceSet schemaSourceSet = YangTextSchemaSourceSetBuilder
 125                 .of(yangResourceNameToContent);
 126             return schemaSourceSet.getModuleReferences();
 127         } catch (final ReactorException | YangSyntaxErrorException e) {
 128             throw new ModelValidationException("Yang file validation failed", e.getMessage(), e);
 129         }
 130     }
 131 }