Ensure prefix is correct module prefix

- Moved Prefix logic from RI to Service layer
- Prefix is no PREFIX propety, not the moduel name!
== RI (DB Layer) Changes
- Removed prefix logic incl hazelcast
- Added new basic ri-test for getDataNode and assert prefix is null
- Updated exsiting ri-test to us getDataNode
- Updated existing ri-test to only use " where really needed
== CPS Service Layer Changes
- Introduced PrefixResolver with clear and limited responsibility
- Use PrefixResolver where needed
- Cache prefix map per anchor, use cached entry when available
- Disabled SONAR on new Regex
== REST Layer
- Use PrefixResolver where needed

Issue-ID: CPS-1353
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: Ie16f0e1ee1c280f3eb69c9e64fab69a780fb692a

3 files changed, 3 insertions, 172 deletions

diff --git a/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheConfig.java b/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheConfig.java
deleted file mode 100644
index f956120e4a..0000000000
--- a/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheConfig.java
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * ============LICENSE_START========================================================
- *  Copyright (C) 2022 Nordix Foundation
- *  ================================================================================
- *  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.cps.spi.cache;
-
-import com.hazelcast.config.Config;
-import com.hazelcast.config.MapConfig;
-import com.hazelcast.config.NamedConfig;
-import com.hazelcast.core.Hazelcast;
-import com.hazelcast.core.HazelcastInstance;
-import com.hazelcast.map.IMap;
-import java.util.concurrent.TimeUnit;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-
-/**
- * Core infrastructure of the hazelcast distributed cache for anchor data config use cases.
- */
-@Configuration
-public class AnchorDataCacheConfig {
-
-    public static final long ANCHOR_DATA_CACHE_TTL_SECS = TimeUnit.HOURS.toSeconds(1);
-    private static final MapConfig anchorDataCacheMapConfig = createMapConfig("anchorDataCacheMapConfig");
-
-    /**
-     * Distributed instance of anchor data cache that contains module prefix by anchor name as properties.
-     *
-     * @return configured map of anchor data cache
-     */
-    @Bean
-    public IMap<String, AnchorDataCacheEntry> anchorDataCache() {
-        return createHazelcastInstance("hazelCastInstanceCpsRi", anchorDataCacheMapConfig)
-                .getMap("anchorDataCache");
-    }
-
-    private HazelcastInstance createHazelcastInstance(final String hazelcastInstanceName,
-            final NamedConfig namedConfig) {
-        return Hazelcast.newHazelcastInstance(initializeConfig(hazelcastInstanceName, namedConfig));
-    }
-
-    private Config initializeConfig(final String instanceName, final NamedConfig namedConfig) {
-        final Config config = new Config(instanceName);
-        config.addMapConfig((MapConfig) namedConfig);
-        config.setClusterName("cps-ri-caches");
-        return config;
-    }
-
-    private static MapConfig createMapConfig(final String configName) {
-        final MapConfig mapConfig = new MapConfig(configName);
-        mapConfig.setBackupCount(3);
-        mapConfig.setAsyncBackupCount(3);
-        return mapConfig;
-    }
-
-}
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheEntry.java b/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheEntry.java
deleted file mode 100644
index 98f6ec3f13..0000000000
--- a/cps-ri/src/main/java/org/onap/cps/spi/cache/AnchorDataCacheEntry.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * ============LICENSE_START========================================================
- *  Copyright (C) 2022 Nordix Foundation
- *  ================================================================================
- *  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.cps.spi.cache;
-
-import java.io.Serializable;
-import java.util.HashMap;
-import java.util.Map;
-
-public class AnchorDataCacheEntry implements Serializable {
-
-    private static final long serialVersionUID = 2111243947810370698L;
-
-    private Map<String, Object> properties = new HashMap<>();
-
-    public Object getProperty(final String propertyName) {
-        return properties.get(propertyName);
-    }
-
-    public void setProperty(final String propertyName, final Object value) {
-        properties.put(propertyName, value);
-    }
-
-    public boolean hasProperty(final String propertyName) {
-        return properties.containsKey(propertyName);
-    }
-}
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
index 2a4a192260..5fe646ff82 100644
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
@@ -24,7 +24,6 @@ package org.onap.cps.spi.impl;
 
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSet.Builder;
-import com.hazelcast.map.IMap;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -33,7 +32,6 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -46,15 +44,11 @@ import org.onap.cps.cpspath.parser.CpsPathUtil;
 import org.onap.cps.cpspath.parser.PathParsingException;
 import org.onap.cps.spi.CpsDataPersistenceService;
 import org.onap.cps.spi.FetchDescendantsOption;
-import org.onap.cps.spi.cache.AnchorDataCacheConfig;
-import org.onap.cps.spi.cache.AnchorDataCacheEntry;
 import org.onap.cps.spi.entities.AnchorEntity;
 import org.onap.cps.spi.entities.DataspaceEntity;
 import org.onap.cps.spi.entities.FragmentEntity;
 import org.onap.cps.spi.entities.FragmentEntityArranger;
 import org.onap.cps.spi.entities.FragmentExtract;
-import org.onap.cps.spi.entities.SchemaSetEntity;
-import org.onap.cps.spi.entities.YangResourceEntity;
 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
 import org.onap.cps.spi.exceptions.AlreadyDefinedExceptionBatch;
 import org.onap.cps.spi.exceptions.ConcurrencyException;
@@ -68,8 +62,6 @@ import org.onap.cps.spi.repository.DataspaceRepository;
 import org.onap.cps.spi.repository.FragmentRepository;
 import org.onap.cps.spi.utils.SessionManager;
 import org.onap.cps.utils.JsonObjectMapper;
-import org.onap.cps.yang.YangTextSchemaSourceSetBuilder;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 
@@ -83,7 +75,6 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
     private final FragmentRepository fragmentRepository;
     private final JsonObjectMapper jsonObjectMapper;
     private final SessionManager sessionManager;
-    private final IMap<String, AnchorDataCacheEntry> anchorDataCache;
 
     private static final String REG_EX_FOR_OPTIONAL_LIST_INDEX = "(\\[@[\\s\\S]+?]){0,1})";
     private static final Pattern REG_EX_PATTERN_FOR_LIST_ELEMENT_KEY_PREDICATE =
@@ -225,9 +216,7 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
                                 final FetchDescendantsOption fetchDescendantsOption) {
         final FragmentEntity fragmentEntity = getFragmentByXpath(dataspaceName, anchorName, xpath,
             fetchDescendantsOption);
-        final DataNode dataNode = toDataNode(fragmentEntity, fetchDescendantsOption);
-        dataNode.setModuleNamePrefix(getRootModuleNamePrefix(fragmentEntity.getAnchor()));
-        return dataNode;
+        return toDataNode(fragmentEntity, fetchDescendantsOption);
     }
 
     private FragmentEntity getFragmentWithoutDescendantsByXpath(final String dataspaceName,
@@ -285,12 +274,8 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
             fragmentEntities = ancestorXpaths.isEmpty() ? Collections.emptyList()
                     : fragmentRepository.findAllByAnchorAndXpathIn(anchorEntity, ancestorXpaths);
         }
-        return fragmentEntities.stream()
-                .map(fragmentEntity -> {
-                    final DataNode dataNode = toDataNode(fragmentEntity, fetchDescendantsOption);
-                    dataNode.setModuleNamePrefix(getRootModuleNamePrefix(anchorEntity));
-                    return dataNode;
-                }).collect(Collectors.toUnmodifiableList());
+        return fragmentEntities.stream().map(fragmentEntity -> toDataNode(fragmentEntity, fetchDescendantsOption))
+                .collect(Collectors.toUnmodifiableList());
     }
 
     @Override
@@ -337,44 +322,6 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
                 .withChildDataNodes(childDataNodes).build();
     }
 
-    private String getRootModuleNamePrefix(final AnchorEntity anchorEntity) {
-        final String cachedModuleNamePrefix = getModuleNamePrefixFromCache(anchorEntity.getName());
-        if (cachedModuleNamePrefix != null) {
-            return cachedModuleNamePrefix;
-        }
-        final String moduleNamePrefix = buildSchemaContextAndRetrieveModulePrefix(anchorEntity);
-        cacheModuleNamePrefix(anchorEntity.getName(), moduleNamePrefix);
-        return moduleNamePrefix;
-    }
-
-    private String buildSchemaContextAndRetrieveModulePrefix(final AnchorEntity anchorEntity) {
-        final SchemaSetEntity schemaSetEntity = anchorEntity.getSchemaSet();
-        final Map<String, String> yangResourceNameToContent =
-                schemaSetEntity.getYangResources().stream().collect(
-                        Collectors.toMap(YangResourceEntity::getFileName, YangResourceEntity::getContent));
-        final SchemaContext schemaContext = YangTextSchemaSourceSetBuilder.of(yangResourceNameToContent)
-                .getSchemaContext();
-        return schemaContext.getModules().iterator().next().getName();
-    }
-
-    private void cacheModuleNamePrefix(final String anchorName, final String moduleNamePrefix) {
-        final AnchorDataCacheEntry anchorDataCacheEntry = new AnchorDataCacheEntry();
-        anchorDataCacheEntry.setProperty(TOP_LEVEL_MODULE_PREFIX_PROPERTY_NAME, moduleNamePrefix);
-        if (anchorDataCache.putIfAbsent(anchorName, anchorDataCacheEntry,
-            AnchorDataCacheConfig.ANCHOR_DATA_CACHE_TTL_SECS, TimeUnit.SECONDS) == null) {
-            log.debug("Module name prefix for an anchor  {} is cached", anchorName);
-        }
-    }
-
-    private String getModuleNamePrefixFromCache(final String anchorName) {
-        if (anchorDataCache.containsKey(anchorName)) {
-            final AnchorDataCacheEntry anchorDataCacheEntry = anchorDataCache.get(anchorName);
-            return anchorDataCacheEntry.hasProperty(TOP_LEVEL_MODULE_PREFIX_PROPERTY_NAME)
-                    ? anchorDataCacheEntry.getProperty(TOP_LEVEL_MODULE_PREFIX_PROPERTY_NAME).toString() : null;
-        }
-        return null;
-    }
-
     private List<DataNode> getChildDataNodes(final FragmentEntity fragmentEntity,
                                              final FetchDescendantsOption fetchDescendantsOption) {
         if (fetchDescendantsOption.hasNext()) {