diff options
Diffstat (limited to 'openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/PnfdQueryExecutor.java')
-rw-r--r-- | openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/PnfdQueryExecutor.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/PnfdQueryExecutor.java b/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/PnfdQueryExecutor.java new file mode 100644 index 0000000000..890dedb2a7 --- /dev/null +++ b/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/PnfdQueryExecutor.java @@ -0,0 +1,113 @@ +/* + * ============LICENSE_START======================================================= + * Copyright (C) 2019 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.openecomp.core.converter.impl.pnfd; + +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Set; +import org.apache.commons.collections.MapUtils; +import org.openecomp.core.converter.pnfd.exception.QueryOperationNotSupportedException; +import org.openecomp.core.converter.pnfd.model.ConversionQuery; + +/** + * Runs YAML queries + */ +public class PnfdQueryExecutor { + + private PnfdQueryExecutor() { + + } + + /** + * Finds if a YAML object contains the provided YAML query. + * @param conversionQuery The query + * @param yamlObject The YAML object to be searched + * @return + * {@code true} if the YAML query structure was found in the YAML object, {@code false} otherwise. + */ + public static boolean find(final ConversionQuery conversionQuery, final Object yamlObject) { + return find(conversionQuery.getQuery(), yamlObject); + } + + /** + * Recursive structure combined with {@link #findMap(Map, Map)} to find if a YAML object contains the provided YAML query. + * Compares the objects if it's a scalar value, otherwise go further in the YAML hierarchical structure + * calling the {@link #findMap(Map, Map)}. + * @param query The current query + * @param yamlObject The current YAML object to be searched + * @return + * {@code true} if the YAML query structure was found in the YAML object, {@code false} otherwise. + */ + private static boolean find(final Object query, final Object yamlObject) { + if (query == null) { + return true; + } + + checkSupportedQueryType(query); + + if (query instanceof String) { + return query.equals(yamlObject); + } + if (query instanceof Map) { + return findMap((Map) query, (Map) yamlObject); + } + return false; + } + + /** + * Recursive structure combined with {@link #find(Object, Object)} to find if a YAML object contains the provided YAML query. * + * @param query The query current object + * @param yamlObject The YAML object to be searched + * @return + * {@code true} if the YAML query structure was found in the YAML object, {@code false} otherwise. + */ + private static boolean findMap(final Map query, final Map yamlObject) { + if (MapUtils.isEmpty(query) || MapUtils.isEmpty(yamlObject)) { + return false; + } + + if (!yamlObject.keySet().containsAll(query.keySet())) { + return false; + } + + return query.entrySet().parallelStream().allMatch(queryEntryObj -> { + final Entry queryEntry = (Entry) queryEntryObj; + return find(queryEntry.getValue(), yamlObject.get(queryEntry.getKey())); + }); + } + + /** + * Checks the supported types for a query. + * @param query the query to check + */ + private static void checkSupportedQueryType(final Object query) { + if (query instanceof String || query instanceof Map) { + return; + } + if (query instanceof List || query instanceof Set) { + throw new QueryOperationNotSupportedException("Yaml list query is not supported yet"); + } + throw new QueryOperationNotSupportedException( + String.format("Yaml query operation for '%s' is not supported yet", query.getClass()) + ); + } + +} |