1 files changed, 53 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