1 files changed, 73 insertions, 0 deletions
diff --git a/catalog-be-plugins/etsi-nfv-nsd-csar-plugin/src/main/java/org/openecomp/sdc/be/plugins/etsi/nfv/nsd/tosca/yaml/ToscaTemplateYamlGenerator.java b/catalog-be-plugins/etsi-nfv-nsd-csar-plugin/src/main/java/org/openecomp/sdc/be/plugins/etsi/nfv/nsd/tosca/yaml/ToscaTemplateYamlGenerator.java
new file mode 100644
index 0000000000..4c2cd87184
--- /dev/null
+++ b/catalog-be-plugins/etsi-nfv-nsd-csar-plugin/src/main/java/org/openecomp/sdc/be/plugins/etsi/nfv/nsd/tosca/yaml/ToscaTemplateYamlGenerator.java
@@ -0,0 +1,73 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.sdc.be.plugins.etsi.nfv.nsd.tosca.yaml;
+
+import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Component;
+import org.yaml.snakeyaml.DumperOptions;
+import org.yaml.snakeyaml.DumperOptions.FlowStyle;
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.nodes.Tag;
+import org.yaml.snakeyaml.representer.Representer;
+
+/**
+ * Handles a Tosca Template YAML parsing
+ */
+@Component
+@Scope(BeanDefinition.SCOPE_PROTOTYPE)
+public class ToscaTemplateYamlGenerator {
+
+    private final ToscaTemplate toscaTemplate;
+    private final Representer representer;
+    private final DumperOptions dumperOptions;
+
+    public ToscaTemplateYamlGenerator(final ToscaTemplate toscaTemplate) {
+        this.toscaTemplate = toscaTemplate;
+        this.representer = new NsdTemplateRepresenter();
+        initRepresenter();
+        this.dumperOptions = new DumperOptions();
+        initDumperOptions();
+    }
+
+    /**
+     * Parses the ToscaTemplate to a String YAML.
+     *
+     * @return the YAML representing the ToscaTemplate
+     */
+    public String parseToYamlString() {
+        final Yaml yaml = new Yaml(representer, dumperOptions);
+        return yaml.dumpAsMap(toscaTemplate);
+    }
+
+    private void initDumperOptions() {
+        dumperOptions.setAllowReadOnlyProperties(false);
+        dumperOptions.setPrettyFlow(true);
+        dumperOptions.setDefaultFlowStyle(FlowStyle.FLOW);
+        dumperOptions.setCanonical(false);
+    }
+
+    private void initRepresenter() {
+        representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
+        representer.setPropertyUtils(new UnsortedPropertyUtils());
+    }
+
+}