Implement PNFD Model driven conversion

[sdc.git] / openecomp-be / lib / openecomp-tosca-converter-lib / openecomp-tosca-converter-core / src / main / java / org / openecomp / core / converter / impl / pnfd / parser / PnfdNodeTemplateBlockParser.java

diff --git a/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/parser/PnfdNodeTemplateBlockParser.java b/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/parser/PnfdNodeTemplateBlockParser.java
new file mode 100644 (file)
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+++ b/openecomp-be/lib/openecomp-tosca-converter-lib/openecomp-tosca-converter-core/src/main/java/org/openecomp/core/converter/impl/pnfd/parser/PnfdNodeTemplateBlockParser.java
@@ -0,0 +1,114 @@
+/*
+ * ============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.parser;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+import org.apache.commons.collections.MapUtils;
+import org.onap.sdc.tosca.datatypes.model.NodeTemplate;
+import org.openecomp.core.converter.pnfd.parser.AbstractPnfdBlockParser;
+import org.openecomp.core.converter.impl.pnfd.PnfdQueryExecutor;
+import org.openecomp.core.converter.pnfd.model.ConversionDefinition;
+import org.openecomp.core.converter.pnfd.model.ConversionQuery;
+import org.openecomp.core.converter.pnfd.model.Transformation;
+import org.openecomp.core.converter.impl.pnfd.strategy.CopyConversionStrategy;
+import org.openecomp.core.converter.pnfd.strategy.PnfdConversionStrategy;
+import org.openecomp.sdc.tosca.services.DataModelUtil;
+
+public class PnfdNodeTemplateBlockParser extends AbstractPnfdBlockParser {
+
+    private Map<String, String> inputNameToConvertMap = new HashMap<>();
+
+    public PnfdNodeTemplateBlockParser(final Transformation transformation) {
+        super(transformation);
+    }
+
+    public Optional<Map<String, Object>> buildParsedBlock(final Map<String, Object> attributeQuery,
+        final Map<String, Object> fromNodeTemplateAttributeMap,
+        final ConversionDefinition conversionDefinition) {
+        //cannot query for more than one attribute
+        if (attributeQuery.keySet().size() > 1) {
+            return Optional.empty();
+        }
+        final String attribute = attributeQuery.keySet().iterator().next();
+        final Object queryValue = attributeQuery.get(attribute);
+        final Object attributeValueToConvert = fromNodeTemplateAttributeMap.get(attribute);
+        if (queryValue == null) {
+            PnfdConversionStrategy pnfdConversionStrategy = conversionDefinition.getPnfdConversionStrategy();
+            if (isGetInputFunction(attributeValueToConvert)) {
+                inputNameToConvertMap.put(extractGetInputFunctionValue(attributeValueToConvert)
+                    , conversionDefinition.getToGetInput()
+                );
+                pnfdConversionStrategy = new CopyConversionStrategy();
+            }
+            final Map<String, Object> parsedNodeTemplate = new HashMap<>();
+            final Optional convertedAttribute = pnfdConversionStrategy.convert(attributeValueToConvert);
+            if (convertedAttribute.isPresent()) {
+                parsedNodeTemplate.put(conversionDefinition.getToAttributeName(), convertedAttribute.get());
+            }
+
+            return parsedNodeTemplate.isEmpty() ? Optional.empty() : Optional.of(parsedNodeTemplate);
+        } else {
+            if (!(queryValue instanceof Map) || !(attributeValueToConvert instanceof Map)) {
+                return Optional.empty();
+            }
+            final Map<String, Object> parsedNodeTemplate = new HashMap<>();
+            final Optional<Map<String, Object>> builtNodeTemplate = buildParsedBlock(
+                (Map<String, Object>) queryValue,
+                (Map<String, Object>) attributeValueToConvert, conversionDefinition);
+            builtNodeTemplate.ifPresent(builtNodeTemplate1 -> parsedNodeTemplate.put(attribute, builtNodeTemplate1));
+
+            return parsedNodeTemplate.isEmpty() ? Optional.empty() : Optional.of(parsedNodeTemplate);
+        }
+    }
+
+    protected Set<Map<String, Object>> findBlocksToParse() {
+        final ConversionQuery conversionQuery = transformation.getConversionQuery();
+        final Map<String, Object> nodeTemplateMap = templateFrom.getNodeTemplates();
+        if (MapUtils.isEmpty(nodeTemplateMap)) {
+            return Collections.emptySet();
+        }
+
+        return nodeTemplateMap.entrySet().stream()
+            .filter(mapEntry -> PnfdQueryExecutor.find(conversionQuery, mapEntry.getValue()))
+            .map(stringObjectEntry -> {
+                final Map<String, Object> map = new HashMap<>();
+                map.put(stringObjectEntry.getKey(), stringObjectEntry.getValue());
+                return map;
+            }).collect(Collectors.toSet());
+    }
+
+    @Override
+    public void write(final String nodeTemplateName, final Map<String, Object> parsedNodeTemplateMap) {
+        if (!parsedNodeTemplateMap.isEmpty()) {
+            final NodeTemplate parsedNodeTemplate = NodeTemplateYamlParser.parse(parsedNodeTemplateMap);
+            DataModelUtil.addNodeTemplate(templateTo, nodeTemplateName, parsedNodeTemplate);
+        }
+    }
+
+    @Override
+    public Optional<Map<String, String>> getInputAndTransformationNameMap() {
+        return Optional.of(inputNameToConvertMap);
+    }
+}