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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);
}
}
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