[SDC-6] sdc-distribution-client 1707 rebasing

Change-Id: I322a05fd79beb6ba4fee4d32afffecf531b86e98
Signed-off-by: Pavel Aharoni <pa0916@att.com>

32 files changed, 906 insertions, 0 deletions

diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/JythonRuntime.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/JythonRuntime.java
new file mode 100644
index 0000000..c5810a9
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/JythonRuntime.java
@@ -0,0 +1,53 @@
+package org.openecomp.sdc.toscaparser;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.Properties;
+
+import org.openecomp.sdc.toscaparser.utils.JarExtractor;
+import org.python.util.PythonInterpreter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class JythonRuntime {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(JythonRuntime.class);
+    private final JarExtractor jarExtractor;
+    private Path homePath;
+
+    public JythonRuntime(JarExtractor jarExtractor) {
+        this.jarExtractor = jarExtractor;
+    }
+
+    public void initialize() throws IOException {
+        tryExtractPyhtonPackages();
+        initRuntime();
+    }
+
+    private void initRuntime() {
+        Properties systemProperties = System.getProperties();
+        Properties properties = getPythonProperties();
+        PythonInterpreter.initialize(systemProperties, properties, new String[0]);
+    }
+
+    private void tryExtractPyhtonPackages() throws IOException {
+        homePath = jarExtractor.extractPyhtonPackages();
+    }
+
+    private Properties getPythonProperties() {
+        Properties properties = new Properties();
+        if (homePath != null) {
+            LOGGER.debug("getPythonProperties - Setting python.home to {}", homePath);
+            properties.put("python.home", homePath.toString());
+        }
+        // Used to prevent: console: Failed to install '': java.nio.charset.UnsupportedCharsetException: cp0.
+        properties.put("python.console.encoding", "UTF-8");
+        return properties;
+    }
+
+    public void terminate() throws IOException {
+        if (homePath != null) {
+            jarExtractor.deleteDirectory(homePath);
+        }
+    }
+}
\ No newline at end of file
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParser.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParser.java
new file mode 100644
index 0000000..ae595f1
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParser.java
@@ -0,0 +1,36 @@
+package org.openecomp.sdc.toscaparser;
+
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.api.ToscaTemplate;
+import org.openecomp.sdc.toscaparser.api.ToscaTemplateFactory;
+import org.openecomp.sdc.toscaparser.jython.JyToscaTemplate;
+import org.python.core.PyObject;
+import org.python.core.PyString;
+import org.python.util.PythonInterpreter;
+
+public class ToscaParser {
+    
+    private final ToscaTemplateFactory toscaTemplateFactory;
+    private final PyObject jythonToscaTemplate;
+    private final PythonInterpreter pythonInterpreter;
+
+    public ToscaParser(ToscaTemplateFactory toscaTemplateFactory, PythonInterpreter pythonInterpreter) {
+        this.toscaTemplateFactory = Objects.requireNonNull(toscaTemplateFactory);
+        this.pythonInterpreter = Objects.requireNonNull(pythonInterpreter);
+        jythonToscaTemplate = getJythonToscaTemplate();
+    }
+
+    private PyObject getJythonToscaTemplate() {
+        try (PythonInterpreter interpreter = pythonInterpreter) {
+            interpreter.exec("from toscaparser.tosca_template import ToscaTemplate");
+            return interpreter.get("ToscaTemplate");
+        }
+    }
+
+    public ToscaTemplate parse(String path) {
+        PyObject toscaTemplateInstance = jythonToscaTemplate.__call__(new PyString(path));
+        JyToscaTemplate jyToscaTemplate = (JyToscaTemplate) toscaTemplateInstance.__tojava__(JyToscaTemplate.class);
+        return toscaTemplateFactory.create(jyToscaTemplate);   
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParserFactory.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParserFactory.java
new file mode 100644
index 0000000..8bb1e17
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/ToscaParserFactory.java
@@ -0,0 +1,48 @@
+package org.openecomp.sdc.toscaparser;
+
+import java.io.IOException;
+
+import org.openecomp.sdc.toscaparser.api.ToscaTemplateFactory;
+import org.openecomp.sdc.toscaparser.utils.JarExtractor;
+import org.python.util.PythonInterpreter;
+
+/**
+ * This is the entry point of the tosca-parser: a factory for creating {@code ToscaParser}s.
+ * <b>This class is not thread-safe.</b> Once you are done with all {@code ToscaParser}s 
+ * created by this factory, the {@code ToscaParserFactory} itself must be closed either by
+ * calling its close() method explicitly or preferrably by creating it in a try-with-resources block:
+ * <pre>
+    try (ToscaParserFactory toscaParserFactory = new ToscaParserFactory()){
+        ToscaParser parser = toscaParserFactory.create()
+        ToscaTemplate toscaTemplate = parser.parse(toscaFilePath);
+        ...
+    }
+ * </pre>
+ * @author Yaniv Nahoum
+ *
+ */
+public class ToscaParserFactory implements AutoCloseable {
+    
+    private JythonRuntime jythonRuntime;
+
+    public ToscaParser create() throws IOException {
+        initRuntime();
+        ToscaTemplateFactory toscaTemplateFactory = new ToscaTemplateFactory();
+        PythonInterpreter pythonInterpreter = new PythonInterpreter();
+        return new ToscaParser(toscaTemplateFactory, pythonInterpreter);
+    }
+    
+    private void initRuntime() throws IOException {
+        if (jythonRuntime == null) {
+            jythonRuntime = new JythonRuntime(new JarExtractor());
+            jythonRuntime.initialize();
+        }
+    }    
+    
+    @Override
+    public void close() throws IOException {
+        if (jythonRuntime != null) {
+            jythonRuntime.terminate();
+        }
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Capability.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Capability.java
new file mode 100644
index 0000000..1359c36
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Capability.java
@@ -0,0 +1,38 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import static com.google.common.collect.ImmutableList.toImmutableList;
+
+import java.util.List;
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.jython.JyCapability;
+
+import com.google.common.base.MoreObjects;
+
+public class Capability {
+    
+    private final JyCapability jyCapability;
+    
+    public Capability(JyCapability jyCapability) {
+        this.jyCapability = Objects.requireNonNull(jyCapability);
+    }
+    
+    public String getName() {
+        return jyCapability.getJyName();
+    }
+    
+    public List<Property> getProperties() {
+        return jyCapability.getJyProperties()
+                .stream()
+                .map(Property::new)
+                .collect(toImmutableList());
+    }
+    
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("name", getName())
+                .add("properties", getProperties())
+                .toString();
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/EntityTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/EntityTemplate.java
new file mode 100644
index 0000000..a6f9868
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/EntityTemplate.java
@@ -0,0 +1,70 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import static com.google.common.collect.ImmutableList.toImmutableList;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.api.elements.StatefulEntityType;
+import org.openecomp.sdc.toscaparser.jython.JyEntityTemplate;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.MoreObjects.ToStringHelper;
+
+public abstract class EntityTemplate {
+
+    private final JyEntityTemplate jyEntityTemplate;
+    private final StatefulEntityType statefulEntityType;
+
+    public EntityTemplate(JyEntityTemplate jyEntityTemplate) {
+        this.jyEntityTemplate = Objects.requireNonNull(jyEntityTemplate);
+        StatefulEntityTypeFactory statefulEntityTypeFactory = new StatefulEntityTypeFactory();
+        statefulEntityType = statefulEntityTypeFactory.create(jyEntityTemplate.getJyTypeDefinition());
+    }
+
+    public String getName() {
+        return jyEntityTemplate.getJyName();
+    }
+    
+    public String getDescription() {
+        return jyEntityTemplate.getJyDescription();
+    }
+
+    public StatefulEntityType getTypeDefinition() {
+        return statefulEntityType;
+    }
+
+    public List<Property> getProperties() {
+        return jyEntityTemplate.getJyProperties()
+                .stream()
+                .map(Property::new)
+                .collect(toImmutableList());
+    }
+
+    public List<Capability> getCapabilities() {
+        return jyEntityTemplate.getJyCapabilities()
+                .stream()
+                .map(Capability::new)
+                .collect(toImmutableList());
+    }
+    
+    public List<Map<String, Map<String, Object>>> getRequirements() {
+        return jyEntityTemplate.getJyRequirements();
+    }
+
+    protected ToStringHelper toStringHelper() {
+        return MoreObjects.toStringHelper(this)
+                .add("name", getName())
+                .add("description", getDescription())
+                .add("typeDefinition", getTypeDefinition())
+                .add("properties", getProperties())
+                .add("capabilities", getCapabilities())
+                .add("requirements", getRequirements());
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper().toString();
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Group.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Group.java
new file mode 100644
index 0000000..65f6857
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Group.java
@@ -0,0 +1,10 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import org.openecomp.sdc.toscaparser.jython.JyGroup;
+
+public class Group extends EntityTemplate {
+    
+    public Group(JyGroup jyGroup) {
+        super(jyGroup);
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/NodeTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/NodeTemplate.java
new file mode 100644
index 0000000..047a421
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/NodeTemplate.java
@@ -0,0 +1,10 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import org.openecomp.sdc.toscaparser.jython.JyNodeTemplate;
+
+public class NodeTemplate extends EntityTemplate {
+
+    public NodeTemplate(JyNodeTemplate jyNodeTemplate) {
+        super(jyNodeTemplate);
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Property.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Property.java
new file mode 100644
index 0000000..c52efb6
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/Property.java
@@ -0,0 +1,48 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.jython.JyProperty;
+import org.openecomp.sdc.toscaparser.utils.PythonUtils;
+
+import com.google.common.base.MoreObjects;
+
+public class Property {
+    
+    private final JyProperty jyProperty;
+    
+    public Property(JyProperty jyProperty) {
+        this.jyProperty = Objects.requireNonNull(jyProperty);
+    }
+    
+    public String getName() {
+        return jyProperty.getJyName();
+    }
+    
+    public Object getValue() {
+        return PythonUtils.cast(jyProperty.getJyValue(), jyProperty.getJyValueClassName());
+    }
+    
+    public String getType() {
+        return jyProperty.getJyType();
+    }
+    
+    public boolean isRequired() {
+        return jyProperty.isJyRequired();
+    }
+    
+    public String getDescription() {
+        return jyProperty.getJyDescription();
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("name", getName())
+                .add("type", getType())
+                .add("required", isRequired())
+                .add("description", getDescription())
+                .add("value", getValue())
+                .toString();
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/StatefulEntityTypeFactory.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/StatefulEntityTypeFactory.java
new file mode 100644
index 0000000..554450a
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/StatefulEntityTypeFactory.java
@@ -0,0 +1,28 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import org.openecomp.sdc.toscaparser.api.elements.GroupType;
+import org.openecomp.sdc.toscaparser.api.elements.NodeType;
+import org.openecomp.sdc.toscaparser.api.elements.StatefulEntityType;
+import org.openecomp.sdc.toscaparser.jython.elements.JyGroupType;
+import org.openecomp.sdc.toscaparser.jython.elements.JyNodeType;
+import org.openecomp.sdc.toscaparser.jython.elements.JyStatefulEntityType;
+
+public class StatefulEntityTypeFactory {
+    
+    public StatefulEntityType create(JyStatefulEntityType jyStatefulEntityType) {
+        String jyClassName = jyStatefulEntityType.getJyClassName();
+        StatefulEntityType statefulEntityType;
+        switch (jyClassName) {
+            case "NodeType":
+                statefulEntityType = new NodeType((JyNodeType) jyStatefulEntityType);
+                break;
+            case "GroupType":
+                statefulEntityType = new GroupType((JyGroupType) jyStatefulEntityType);
+                break;
+            default: 
+                throw new UnsupportedOperationException(jyClassName + " is not supported!");
+        }
+        
+        return statefulEntityType;
+    }
+}
\ No newline at end of file
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/SubstitutionMappings.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/SubstitutionMappings.java
new file mode 100644
index 0000000..526a0e3
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/SubstitutionMappings.java
@@ -0,0 +1,48 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import static com.google.common.collect.ImmutableList.toImmutableList;
+
+import java.util.List;
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.api.elements.NodeType;
+import org.openecomp.sdc.toscaparser.api.parameters.Input;
+import org.openecomp.sdc.toscaparser.jython.JySubstitutionMappings;
+
+import com.google.common.base.MoreObjects;
+
+public class SubstitutionMappings {
+
+    private final JySubstitutionMappings jySubstitutionMappings;
+
+    public SubstitutionMappings(JySubstitutionMappings jySubstitutionMappings) {
+        this.jySubstitutionMappings = Objects.requireNonNull(jySubstitutionMappings);
+    }
+
+    public List<NodeTemplate> getNodeTemplates() {
+        return jySubstitutionMappings.getJyNodeTemplates()
+                .stream()
+                .map(NodeTemplate::new)
+                .collect(toImmutableList());
+    }
+
+    public List<Input> getInputs() {
+        return jySubstitutionMappings.getJyInputs()
+                .stream()
+                .map(Input::new)
+                .collect(toImmutableList());
+    }
+
+    public NodeType getNodeDefinition() {
+        return new NodeType(jySubstitutionMappings.getJyNodeDefinition());
+    }
+    
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("nodeTemplates", getNodeTemplates())
+                .add("inputs", getInputs())
+                .add("nodeDefinition", getNodeDefinition())
+                .toString();
+    }    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/TopologyTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/TopologyTemplate.java
new file mode 100644
index 0000000..1769455
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/TopologyTemplate.java
@@ -0,0 +1,62 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import static com.google.common.collect.ImmutableList.toImmutableList;
+
+import java.util.List;
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.api.parameters.Input;
+import org.openecomp.sdc.toscaparser.jython.JySubstitutionMappings;
+import org.openecomp.sdc.toscaparser.jython.JyTopologyTemplate;
+
+import com.google.common.base.MoreObjects;
+
+public class TopologyTemplate {
+
+    private final JyTopologyTemplate jyTopologyTemplate;
+
+    public TopologyTemplate(JyTopologyTemplate jyTopologyTemplate) {
+        this.jyTopologyTemplate = Objects.requireNonNull(jyTopologyTemplate);        
+    }
+
+    public String getDescription() {
+        return jyTopologyTemplate.getJyDescription();
+    }
+
+    public List<NodeTemplate> getNodeTemplates() {
+        return jyTopologyTemplate.getJyNodeTemplates()
+                .stream()
+                .map(NodeTemplate::new)
+                .collect(toImmutableList());
+    }
+
+    public List<Input> getInputs() {
+        return jyTopologyTemplate.getJyInputs()
+                .stream()
+                .map(Input::new)
+                .collect(toImmutableList());
+    }
+    
+    public List<Group> getGroups() {
+        return jyTopologyTemplate.getJyGroups()
+                .stream()
+                .map(Group::new)
+                .collect(toImmutableList());
+    }
+    
+    public SubstitutionMappings getSubstitutionMappings() {
+        JySubstitutionMappings jySubstitutionMappings = jyTopologyTemplate.getJySubstitutionMappings();
+        return jySubstitutionMappings != null ? new SubstitutionMappings(jySubstitutionMappings) : null;
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("description", getDescription())
+                .add("inputs", getInputs())
+                .add("nodeTemplates", getNodeTemplates())
+                .add("groups", getGroups())
+                .add("substitutionMappings", getSubstitutionMappings())
+                .toString();
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplate.java
new file mode 100644
index 0000000..97563fb
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplate.java
@@ -0,0 +1,49 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import java.util.List;
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.api.parameters.Input;
+import org.openecomp.sdc.toscaparser.jython.JyToscaTemplate;
+
+import com.google.common.base.MoreObjects;
+
+public class ToscaTemplate {
+
+    private final JyToscaTemplate jyToscaTemplate;
+    private final TopologyTemplate topologyTemplate;
+
+    public ToscaTemplate(JyToscaTemplate jyToscaTemplate, TopologyTemplate topologyTemplate) {
+        this.jyToscaTemplate = Objects.requireNonNull(jyToscaTemplate);
+        this.topologyTemplate = Objects.requireNonNull(topologyTemplate);
+    }
+
+    public String getVersion() {
+        return jyToscaTemplate.getJyVersion();
+    }
+
+    public String getDescription() {
+        return jyToscaTemplate.getJyDescription();
+    }
+    
+    public TopologyTemplate getTopologyTemplate() {
+        return topologyTemplate;
+    }
+
+    public List<NodeTemplate> getNodeTemplates() {
+        return topologyTemplate.getNodeTemplates();
+    }
+    
+    public List<Input> getInputs() {
+        return topologyTemplate.getInputs();
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("version", getVersion())
+                .add("description", getDescription())
+                .add("topologyTemplate", topologyTemplate)
+                .toString();
+    }
+}
\ No newline at end of file
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplateFactory.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplateFactory.java
new file mode 100644
index 0000000..553c56b
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/ToscaTemplateFactory.java
@@ -0,0 +1,14 @@
+package org.openecomp.sdc.toscaparser.api;
+
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.jython.JyToscaTemplate;
+
+public class ToscaTemplateFactory {
+    
+    public ToscaTemplate create(JyToscaTemplate jyToscaTemplate) {
+        Objects.requireNonNull(jyToscaTemplate);
+        TopologyTemplate topologyTemplate = new TopologyTemplate(jyToscaTemplate.getJyTopologyTemplate());
+        return new ToscaTemplate(jyToscaTemplate, topologyTemplate);
+    }
+}
\ No newline at end of file
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/GroupType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/GroupType.java
new file mode 100644
index 0000000..8e0bedf
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/GroupType.java
@@ -0,0 +1,30 @@
+package org.openecomp.sdc.toscaparser.api.elements;
+
+import org.openecomp.sdc.toscaparser.jython.elements.JyGroupType;
+
+import com.google.common.base.MoreObjects.ToStringHelper;
+
+public class GroupType extends StatefulEntityType {
+
+    private final JyGroupType jyGroupType;
+
+    public GroupType(JyGroupType jyGroupType) {
+        super(jyGroupType);
+        this.jyGroupType = jyGroupType;
+    }
+
+    public String getVersion() {
+        return jyGroupType.getJyVersion();
+    }
+
+    public String getDescription() {
+        return jyGroupType.getJyDescription();
+    }
+
+    @Override
+    protected ToStringHelper toStringHelper() {
+        return super.toStringHelper()
+                .add("version", getVersion())
+                .add("description", getDescription());
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/NodeType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/NodeType.java
new file mode 100644
index 0000000..69bd9ba
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/NodeType.java
@@ -0,0 +1,27 @@
+package org.openecomp.sdc.toscaparser.api.elements;
+
+import java.util.List;
+
+import org.openecomp.sdc.toscaparser.jython.elements.JyNodeType;
+
+import com.google.common.base.MoreObjects.ToStringHelper;
+
+public class NodeType extends StatefulEntityType {
+    
+    private final JyNodeType jyNodeType;
+
+    public NodeType(JyNodeType jyNodeType) {
+        super(jyNodeType);
+        this.jyNodeType = jyNodeType;
+    }
+    
+    public List<?> getRequirements() {
+        return jyNodeType.getJyRequirements();
+    }
+
+    @Override
+    protected ToStringHelper toStringHelper() {
+        return super.toStringHelper()
+                .add("requirements", getRequirements());
+    }    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/StatefulEntityType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/StatefulEntityType.java
new file mode 100644
index 0000000..32661b5
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/elements/StatefulEntityType.java
@@ -0,0 +1,31 @@
+package org.openecomp.sdc.toscaparser.api.elements;
+
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.jython.elements.JyStatefulEntityType;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.MoreObjects.ToStringHelper;
+
+public abstract class StatefulEntityType {
+    
+    private final JyStatefulEntityType jyStatefulEntityType;
+    
+    public StatefulEntityType(JyStatefulEntityType jyStatefulEntityType) {
+        this.jyStatefulEntityType = Objects.requireNonNull(jyStatefulEntityType);
+    }
+
+    public String getType() {
+        return jyStatefulEntityType.getJyType();
+    }
+    
+    protected ToStringHelper toStringHelper() {
+        return MoreObjects.toStringHelper(this)
+                .add("type", getType());
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper().toString();
+    }    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/parameters/Input.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/parameters/Input.java
new file mode 100644
index 0000000..b700c47
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/api/parameters/Input.java
@@ -0,0 +1,42 @@
+package org.openecomp.sdc.toscaparser.api.parameters;
+
+import java.util.Objects;
+
+import org.openecomp.sdc.toscaparser.jython.parameters.JyInput;
+
+import com.google.common.base.MoreObjects;
+
+public class Input {
+    
+    private final JyInput jyInput;
+
+    public Input(JyInput jyInput) {
+        this.jyInput = Objects.requireNonNull(jyInput);
+    }
+    
+    public String getName() {
+        return jyInput.getJyName();
+    }
+    
+    public String getType() {
+        return jyInput.getJyType();
+    }
+    
+    public boolean isRequired() {
+        return jyInput.isJyRequired();
+    }
+    
+    public String getDescription() {
+        return jyInput.getJyDescription();
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("name", getName())
+                .add("type", getType())
+                .add("required", isRequired())
+                .add("description", getDescription())
+                .toString();
+    }    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyCapability.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyCapability.java
new file mode 100644
index 0000000..1956932
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyCapability.java
@@ -0,0 +1,9 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+import java.util.List;
+
+public interface JyCapability {
+    
+    String getJyName();
+    List<JyProperty> getJyProperties();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyEntityTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyEntityTemplate.java
new file mode 100644
index 0000000..cdcb8a0
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyEntityTemplate.java
@@ -0,0 +1,16 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+import java.util.List;
+import java.util.Map;
+
+import org.openecomp.sdc.toscaparser.jython.elements.JyStatefulEntityType;
+
+public interface JyEntityTemplate {
+    
+    String getJyName();
+    String getJyDescription();
+    JyStatefulEntityType getJyTypeDefinition();
+    List<JyProperty> getJyProperties();
+    List<JyCapability> getJyCapabilities();
+    List<Map<String, Map<String, Object>>> getJyRequirements();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyGroup.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyGroup.java
new file mode 100644
index 0000000..c155dc6
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyGroup.java
@@ -0,0 +1,5 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+public interface JyGroup extends JyEntityTemplate {
+
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyNodeTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyNodeTemplate.java
new file mode 100644
index 0000000..b04a337
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyNodeTemplate.java
@@ -0,0 +1,5 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+public interface JyNodeTemplate extends JyEntityTemplate {
+    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyProperty.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyProperty.java
new file mode 100644
index 0000000..4c33b92
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyProperty.java
@@ -0,0 +1,11 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+public interface JyProperty {
+    
+    String getJyName();
+    Object getJyValue();
+    String getJyValueClassName();
+    String getJyType();
+    boolean isJyRequired();
+    String getJyDescription();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JySubstitutionMappings.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JySubstitutionMappings.java
new file mode 100644
index 0000000..bd95cdc
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JySubstitutionMappings.java
@@ -0,0 +1,13 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+import java.util.List;
+
+import org.openecomp.sdc.toscaparser.jython.elements.JyNodeType;
+import org.openecomp.sdc.toscaparser.jython.parameters.JyInput;
+
+public interface JySubstitutionMappings {
+    
+    List<JyNodeTemplate> getJyNodeTemplates();
+    List<JyInput> getJyInputs();
+    JyNodeType getJyNodeDefinition();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyTopologyTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyTopologyTemplate.java
new file mode 100644
index 0000000..c6fe053
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyTopologyTemplate.java
@@ -0,0 +1,14 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+import java.util.List;
+
+import org.openecomp.sdc.toscaparser.jython.parameters.JyInput;
+
+public interface JyTopologyTemplate {
+    
+    String getJyDescription();    
+    List<JyNodeTemplate> getJyNodeTemplates();
+    List<JyInput> getJyInputs();
+    List<JyGroup> getJyGroups();
+    JySubstitutionMappings getJySubstitutionMappings();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyToscaTemplate.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyToscaTemplate.java
new file mode 100644
index 0000000..c58a042
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/JyToscaTemplate.java
@@ -0,0 +1,11 @@
+package org.openecomp.sdc.toscaparser.jython;
+
+import java.util.List;
+
+public interface JyToscaTemplate {
+    
+    String getJyVersion();
+    String getJyDescription();
+    List<JyNodeTemplate> getJyNodeTemplates();
+    JyTopologyTemplate getJyTopologyTemplate();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyGroupType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyGroupType.java
new file mode 100644
index 0000000..1ad2492
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyGroupType.java
@@ -0,0 +1,7 @@
+package org.openecomp.sdc.toscaparser.jython.elements;
+
+public interface JyGroupType extends JyStatefulEntityType {
+    
+    String getJyVersion();
+    String getJyDescription();    
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyNodeType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyNodeType.java
new file mode 100644
index 0000000..885dcda
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyNodeType.java
@@ -0,0 +1,8 @@
+package org.openecomp.sdc.toscaparser.jython.elements;
+
+import java.util.List;
+
+public interface JyNodeType extends JyStatefulEntityType {
+    
+    List<?> getJyRequirements();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyStatefulEntityType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyStatefulEntityType.java
new file mode 100644
index 0000000..890bc6c
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/elements/JyStatefulEntityType.java
@@ -0,0 +1,7 @@
+package org.openecomp.sdc.toscaparser.jython.elements;
+
+public interface JyStatefulEntityType {
+    
+    String getJyType();
+    String getJyClassName();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/parameters/JyInput.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/parameters/JyInput.java
new file mode 100644
index 0000000..320e91b
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/jython/parameters/JyInput.java
@@ -0,0 +1,9 @@
+package org.openecomp.sdc.toscaparser.jython.parameters;
+
+public interface JyInput {
+    
+    String getJyName();
+    String getJyType();
+    boolean isJyRequired();
+    String getJyDescription();
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/JarExtractor.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/JarExtractor.java
new file mode 100644
index 0000000..44feaa3
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/JarExtractor.java
@@ -0,0 +1,87 @@
+package org.openecomp.sdc.toscaparser.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Enumeration;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.io.MoreFiles;
+import com.google.common.io.RecursiveDeleteOption;
+
+public class JarExtractor {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(JarExtractor.class);
+    private static final String PYTHON_DEPENDENCIES_PATH = "Lib/site-packages";
+    private static final String TEMP_DIR_PREFIX = "__tosca__";
+
+    public Path extractPyhtonPackages() throws IOException {
+        String codePath = getCodePath();
+        if (!isRunningInJar(codePath)) {
+            LOGGER.info("#extractPyhtonPackages - Nothing to extract, we're not running in a jar file.");
+            return null;
+        }
+
+        Path tempDirPath = createTempDirectory();
+        String tempDirName = tempDirPath.toString();
+        extractJarDirectory(codePath, tempDirName);
+        LOGGER.info("#extractPyhtonPackages - End. Extracted python dependencies to {}", tempDirName);
+        return tempDirPath;
+    }
+
+    private Path createTempDirectory() throws IOException {
+        Path tempDir = Files.createTempDirectory(TEMP_DIR_PREFIX);
+        LOGGER.debug("#createTempDirectory - tempDir created: {}", tempDir);
+        return tempDir;
+    }
+
+    private void extractJarDirectory(String jarDir, String tempDir) throws IOException {
+        try (JarFile jarFile = new JarFile(jarDir)) {
+            Enumeration<JarEntry> entries = jarFile.entries();
+            while (entries.hasMoreElements()) {
+                JarEntry entry = entries.nextElement();
+                if (shouldExtract(entry)) {
+                    extract(jarFile, entry, tempDir);
+                }
+            }
+        }
+    }
+
+    private void extract(JarFile jarFile, JarEntry entry, String tempDirName) throws IOException {
+        try (InputStream source = jarFile.getInputStream(entry)) {
+            Path targetPath = Paths.get(tempDirName, entry.getName());
+            Files.createDirectories(targetPath.getParent());
+            Files.copy(source, targetPath);
+        }
+    }
+
+    private boolean shouldExtract(JarEntry entry) {
+        return !entry.isDirectory() && entry.getName()
+                .startsWith(PYTHON_DEPENDENCIES_PATH);
+    }
+
+    private String getCodePath() {
+        String codePath = this.getClass()
+                .getProtectionDomain()
+                .getCodeSource()
+                .getLocation()
+                .getFile();
+        LOGGER.debug("#getCodePath - codePath: {}", codePath);
+        return codePath;
+    }
+
+    private boolean isRunningInJar(String path) {
+        return path.endsWith(".jar");
+    }
+    
+    public void deleteDirectory(Path path) throws IOException {
+        MoreFiles.deleteRecursively(path, RecursiveDeleteOption.ALLOW_INSECURE);
+        LOGGER.info("#deleteDirectory - deleted temp directory: {}", path);
+    }
+}
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonType.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonType.java
new file mode 100644
index 0000000..f4d6939
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonType.java
@@ -0,0 +1,47 @@
+package org.openecomp.sdc.toscaparser.utils;
+
+import static java.util.stream.Collectors.toMap;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+
+public enum PythonType {
+    
+    INT("int", Integer.class),
+    FLOAT("float", Double.class),
+    BOOL("bool", Boolean.class),
+    STR("str", String.class),
+    LIST("list", List.class),
+    DICT("dict", Map.class),
+    UNKNOWN("", Object.class);
+    
+    private static final Map<String, PythonType> NAME_TO_TYPE;
+    private final String typeName;
+    private final Class<?> javaClass;
+    
+    static {
+        NAME_TO_TYPE = Arrays.stream(values())
+                .filter(type -> type != UNKNOWN)
+                .collect(toMap(PythonType::getTypeName, Function.identity()));
+    }
+
+    private PythonType(String typeName, Class<?> javaClass) {
+        this.typeName = typeName;
+        this.javaClass = javaClass;
+    }
+
+    public static PythonType fromName(String name) {
+        PythonType pythonType = NAME_TO_TYPE.get(name);
+        return pythonType != null ? pythonType : UNKNOWN;
+    }
+    
+    public String getTypeName() {
+        return typeName;
+    }
+    
+    public Class<?> getJavaClass() {
+        return javaClass;
+    }
+}
\ No newline at end of file
diff --git a/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonUtils.java b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonUtils.java
new file mode 100644
index 0000000..f73c92b
--- /dev/null
+++ b/jython-tosca-parser/src/main/java/org/openecomp/sdc/toscaparser/utils/PythonUtils.java
@@ -0,0 +1,13 @@
+package org.openecomp.sdc.toscaparser.utils;
+
+public final class PythonUtils {
+    
+    private PythonUtils() {
+        // No instances allowed
+    }
+    
+    public static Object cast(Object object, String pythonTypeName) {
+        PythonType pythonType = PythonType.fromName(pythonTypeName);
+        return pythonType.getJavaClass().cast(object);
+    }
+}