continue implementation

Author: bernardodemarco

plugins/iac/nimble/pom.xml

@@ -28,4 +28,12 @@
         <version>4.22.0.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
+    <dependencies>
+        <dependency>
+            <groupId>org.yaml</groupId>
+            <artifactId>snakeyaml</artifactId>
+            <version>2.6</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
 </project>

plugins/iac/nimble/src/main/java/org/apache/cloudstack/service/NimbleManagerImpl.java

@@ -64,14 +64,15 @@ public boolean configure(String name, Map<String, Object> params) throws Configu
     protected List<String> loadToscaProfile() {
         logger.info("Loading NIMBLE's TOSCA profile.");
         List<IacTemplatesProfile> profileElements = iacTemplatesProfileDao.listAll();
+
         return profileElements.stream().map(element -> {
             String elementContent = getElementDefinition(element.getElementContentFilePath());
             return elementContent;
         }).collect(Collectors.toList());
     }
 
-    protected String getElementDefinition(String resource) {
-        Path path = Paths.get(String.format("%s%s", NIMBLE_CONFIG_PATH, "tosca/profile/storage/volume.yaml"));
+    protected String getElementDefinition(String elementContentFilePath) {
+        Path path = Paths.get(String.format("%s%s", NIMBLE_CONFIG_PATH, elementContentFilePath));
         try {
             return Files.readString(path);
         } catch (IOException e) {

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/ToscaParser.java

@@ -0,0 +1,13 @@
+package org.apache.cloudstack.tosca;
+
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+
+public class ToscaParser {
+
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/loader/ToscaYamlLoader.java

@@ -0,0 +1,34 @@
+package org.apache.cloudstack.tosca.loader;
+
+import org.apache.cloudstack.tosca.model.ToscaNodeType;
+
+import java.nio.file.Path;
+import java.util.Map;
+
+public class ToscaYamlLoader {
+    private final String NODE_TYPES_KEY = "node_types";
+    private final String NODE_TYPES_PROPERTIES_KEY = "properties";
+    private final String NODE_TYPES_ATTRIBUTES_KEY = "attributes";
+
+    public ToscaNodeType loadNodeType(Path path) {
+        Object rawYaml = YamlUtils.loadYaml(path);
+        Map<String, Object> yamlRoot = YamlUtils.asMap(rawYaml);
+
+        Map<String, Object> nodeTypes = YamlUtils.asMap(yamlRoot.get(NODE_TYPES_KEY));
+        for (Map.Entry<String, Object> entry : nodeTypes.entrySet()) {
+            String name = entry.getKey();
+            Map<String, Object> nodeTypeBody = YamlUtils.asMap(entry.getValue());
+            parseNodeTypeProperties(nodeTypeBody.get(NODE_TYPES_PROPERTIES_KEY));
+            parseNodeTypeAttributes(nodeTypeBody.get(NODE_TYPES_ATTRIBUTES_KEY));
+            return new ToscaNodeType(name, null, null);
+        }
+
+        return null;
+    }
+
+    private void parseNodeTypeProperties(Object rawProperties) {
+
+    }
+
+    private void parseNodeTypeAttributes(Object rawAttributes) {}
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/loader/YamlUtils.java

@@ -0,0 +1,30 @@
+package org.apache.cloudstack.tosca.loader;
+
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+
+public class YamlUtils {
+    @SuppressWarnings("unchecked")
+    public static Map<String, Object> asMap(Object rawObject) {
+        if (!(rawObject instanceof Map)) {
+            return Map.of();
+        }
+
+        return (Map<String, Object>) rawObject;
+    }
+
+    public static Object loadYaml(Path path) {
+        Yaml yaml = new Yaml();
+
+        try (InputStream inputStream = Files.newInputStream(path)) {
+            return yaml.load(inputStream);
+        } catch (IOException exception) {
+            return null;
+        }
+    }
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/model/ToscaAttributeDefinition.java

@@ -0,0 +1,7 @@
+package org.apache.cloudstack.tosca.model;
+
+public class ToscaAttributeDefinition extends ToscaFieldDefinition {
+    public ToscaAttributeDefinition(String name, String description, ToscaPrimitiveType type) {
+        super(name, description, type);
+    }
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/model/ToscaFieldDefinition.java

@@ -0,0 +1,25 @@
+package org.apache.cloudstack.tosca.model;
+
+public abstract class ToscaFieldDefinition {
+    private String name;
+    private String description;
+    private ToscaPrimitiveType type;
+
+    public ToscaFieldDefinition(String name, String description, ToscaPrimitiveType type) {
+        this.name = name;
+        this.description = description;
+        this.type = type;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public ToscaPrimitiveType getType() {
+        return type;
+    }
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/model/ToscaNodeType.java

@@ -0,0 +1,27 @@
+package org.apache.cloudstack.tosca.model;
+
+import java.util.Map;
+
+public class ToscaNodeType {
+    private String name;
+    private Map<String, ToscaPropertyDefinition> properties;
+    private Map<String, ToscaAttributeDefinition> attributes;
+
+    public ToscaNodeType(String name, Map<String, ToscaPropertyDefinition> properties, Map<String, ToscaAttributeDefinition> attributes) {
+        this.name = name;
+        this.properties = properties;
+        this.attributes = attributes;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Map<String, ToscaPropertyDefinition> getProperties() {
+        return properties;
+    }
+
+    public Map<String, ToscaAttributeDefinition> getAttributes() {
+        return attributes;
+    }
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/model/ToscaPrimitiveType.java

@@ -0,0 +1,5 @@
+package org.apache.cloudstack.tosca.model;
+
+public enum ToscaPrimitiveType {
+    STRING, INTEGER, FLOAT, BOOLEAN, LIST
+}

plugins/iac/nimble/src/main/java/org/apache/cloudstack/tosca/model/ToscaPropertyDefinition.java

@@ -0,0 +1,20 @@
+package org.apache.cloudstack.tosca.model;
+
+public class ToscaPropertyDefinition extends ToscaFieldDefinition {
+    private boolean required;
+    private Object validation;
+
+    public ToscaPropertyDefinition(String name, String description, ToscaPrimitiveType type, boolean required, Object validation) {
+        super(name, description, type);
+        this.required = required;
+        this.validation = validation;
+    }
+
+    public boolean isRequired() {
+        return required;
+    }
+
+    public Object getValidation() {
+        return validation;
+    }
+}