Examples with PyObject org.python.core.PyObject used on opensource projects

Example 46 with PyObject

use of org.python.core.PyObject in project oxCore by GluuFederation.

the class PythonService method loadPythonScript.

@SuppressWarnings("unchecked")
private <T> T loadPythonScript(String scriptPythonType, Class<T> scriptJavaType, PyObject[] constructorArgs, PythonInterpreter interpreter) throws PythonException {
    PyObject scriptPythonTypeObject = interpreter.get(scriptPythonType);
    if (scriptPythonTypeObject == null) {
        return null;
    }
    PyObject scriptPythonTypeClass;
    try {
        scriptPythonTypeClass = scriptPythonTypeObject.__call__(constructorArgs);
    } catch (Exception ex) {
        log.error("Failed to initialize python class", ex.getMessage());
        throw new PythonException(String.format("Failed to initialize python class '%s'", scriptPythonType), ex);
    }
    Object scriptJavaClass = scriptPythonTypeClass.__tojava__(scriptJavaType);
    if (!ReflectHelper.assignableFrom(scriptJavaClass.getClass(), scriptJavaType)) {
        return null;
    }
    return (T) scriptJavaClass;
}

Example 47 with PyObject

use of org.python.core.PyObject in project yamcs-studio by yamcs.

the class JythonScriptStore method dispose.

@Override
protected void dispose() {
    if (interp != null) {
        PyObject o = interp.getLocals();
        if (o != null && o instanceof PyStringMap) {
            ((PyStringMap) o).clear();
        }
        // o = state.getBuiltins();
        // if (o != null && o instanceof PyStringMap) {
        // ((PyStringMap)o).clear();
        // }
        o = state.getDict();
        if (o != null && o instanceof PyStringMap) {
            ((PyStringMap) o).clear();
        }
        state.close();
        state.cleanup();
        interp.close();
        interp.cleanup();
        interp = null;
        state = null;
    }
    code = null;
    super.dispose();
}

Example 48 with PyObject

use of org.python.core.PyObject in project oxCore by GluuFederation.

the class CustomScriptManager method createExternalTypeFromStringWithPythonException.

public BaseExternalType createExternalTypeFromStringWithPythonException(CustomScript customScript, Map<String, SimpleCustomProperty> configurationAttributes) throws PythonException {
    String script = customScript.getScript();
    String scriptName = StringHelper.toLowerCase(customScript.getName()) + ".py";
    if (script == null) {
        return null;
    }
    CustomScriptType customScriptType = customScript.getScriptType();
    BaseExternalType externalType = null;
    InputStream bis = null;
    try {
        bis = new ByteArrayInputStream(script.getBytes("UTF-8"));
        externalType = pythonService.loadPythonScript(bis, scriptName, customScriptType.getPythonClass(), customScriptType.getCustomScriptType(), new PyObject[] { new PyLong(System.currentTimeMillis()) });
    } catch (UnsupportedEncodingException e) {
        log.error(e.getMessage(), e);
    } finally {
        IOUtils.closeQuietly(bis);
    }
    if (externalType == null) {
        return null;
    }
    boolean initialized = false;
    try {
        initialized = externalType.init(configurationAttributes);
    } catch (Exception ex) {
        log.error("Failed to initialize custom script: '{}'", ex, customScript.getName());
    }
    if (initialized) {
        return externalType;
    }
    return null;
}

Example 49 with PyObject

use of org.python.core.PyObject in project phoebus by ControlSystemStudio.

the class JythonSupport method loadClass.

/**
 * Load a Jython class
 *
 *  @param type Type of the Java object to return
 *  @param class_name Name of the Jython class,
 *                    must be in package (file) using lower case of class name
 *  @param args Arguments to pass to constructor
 *  @return Java object for instance of Jython class
 *  @throws Exception on error
 */
@SuppressWarnings("unchecked")
public <T> T loadClass(final Class<T> type, final String class_name, final String... args) throws Exception {
    // Get package name
    final String pack_name = class_name.toLowerCase();
    logger.log(Level.FINE, "Loading Jython class {0} from {1}", new Object[] { class_name, pack_name });
    try {
        // Import class into Jython
        // Debug: Print the path that's actually used
        // final String statement = "import sys\nprint sys.path\nfrom " + pack_name +  " import " + class_name;
        final String statement = "from " + pack_name + " import " + class_name;
        interpreter.exec(statement);
    } catch (PyException ex) {
        logger.log(Level.WARNING, "Error loading Jython class {0} from {1}", new Object[] { class_name, pack_name });
        logger.log(Level.WARNING, "Jython sys.path:\n * {0}", interpreter.getSystemState().path.stream().collect(Collectors.joining("\n * ")));
        throw new Exception("Error loading Jython class " + class_name + ":" + getExceptionMessage(ex), ex);
    }
    // Create Java reference
    final PyObject py_class = interpreter.get(class_name);
    final PyObject py_object;
    if (args.length <= 0)
        py_object = py_class.__call__();
    else {
        final PyObject[] py_args = new PyObject[args.length];
        for (int i = 0; i < py_args.length; ++i) py_args[i] = new PyString(args[i]);
        py_object = py_class.__call__(py_args);
    }
    final T java_ref = (T) py_object.__tojava__(type);
    return java_ref;
}

Example 50 with PyObject

use of org.python.core.PyObject in project Pydev by fabioz.

the class JythonModules method getPepJythonModule.

/**
 * @param module: The name of the module (i.e.: pycodestyle, autopep8)
 * @return null if it was not able to get the pycodestyle module.
 */
private static PyObject getPepJythonModule(IPythonInterpreter interpreter, String module) {
    synchronized (loadJythonLock) {
        String s = "" + "import sys\n" + "add_to_pythonpath = '%s'\n" + "if add_to_pythonpath not in sys.path:\n" + "    sys.path.append(add_to_pythonpath)\n" + "import " + module + "\n";
        // put the parent dir of pycodestyle.py in the pythonpath.
        File pepModuleLoc = CorePlugin.getPepModuleLocation(module + ".py");
        if (pepModuleLoc == null) {
            return null;
        }
        s = StringUtils.format(s, StringUtils.replaceAllSlashes(pepModuleLoc.getParentFile().getAbsolutePath()));
        interpreter.exec(s);
        return (PyObject) interpreter.get(module);
    }
}