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

Example 56 with PyObject

use of org.python.core.PyObject in project gda-core by openGDA.

the class ScriptBasedItem method evaluateFunction.

/**
 * The function will be given a single double as argument, and expects a double as return
 *
 * Any exception is rethrown as a WorkflowException
 */
private Object evaluateFunction(String functionName, PyObject function, PyObject argument) throws WorkflowException {
    logger.debug("Evaluating {}({})...", functionName, argument.__str__());
    try {
        Object result = function.__call__(argument).__tojava__(Object.class);
        logger.debug("... evaluation result = {}", result);
        return Objects.requireNonNull(result, "Function returned null!");
    } catch (PyException e) {
        throw new WorkflowException("Error executing function '" + functionName + "'", e);
    }
}

Example 57 with PyObject

use of org.python.core.PyObject in project gda-core by openGDA.

the class HighlightersTest method testDifferentThemesHaveDifferentHighlighters.

@Test
public void testDifferentThemesHaveDifferentHighlighters() throws Exception {
    PyObject h1 = mock(PyObject.class);
    PyObject h2 = mock(PyObject.class);
    when(h1.__call__(new PyUnicode("abcd"))).thenReturn(new PyUnicode("theme1"));
    when(h2.__call__(new PyUnicode("abcd"))).thenReturn(new PyUnicode("theme2"));
    evalResponse = returnsElementsOf(asList(h1, h2));
    Highlighter high1 = Highlighters.getHighlighter("theme_one");
    Highlighter high2 = Highlighters.getHighlighter("theme_two");
    assertThat(high1.highlight(reader, "abcd"), is(AttributedString.fromAnsi("theme1")));
    assertThat(high2.highlight(reader, "abcd"), is(AttributedString.fromAnsi("theme2")));
}

Example 58 with PyObject

use of org.python.core.PyObject in project gda-core by openGDA.

the class JythonServer method getAllFromJythonNamespace.

/**
 * Returns the contents of the top-level namespace.
 * <p>
 * This returns object references so cannot be distributed.
 *
 * @return Map<String, Object> of items in jython namespace
 */
private Map<String, Object> getAllFromJythonNamespace() {
    PyStringMap locals = (PyStringMap) this.interp.getAllFromJythonNamepsace();
    PyList dict = locals.keys();
    dict.sort();
    final Map<String, Object> output = new LinkedHashMap<>();
    for (int i = 0; i < dict.__len__(); i++) {
        PyObject key = dict.__getitem__(i);
        output.put(key.asString(), locals.get(key).__tojava__(Object.class));
    }
    return output;
}

Example 59 with PyObject

use of org.python.core.PyObject in project gda-core by openGDA.

the class ScannableGetPositionWrapper method calStringFormattedValues.

String[] calStringFormattedValues() {
    Object[] elements = getElements();
    String[] stringFormattedValues = new String[elements.length];
    int index = 0;
    for (Object object : elements) {
        String val = "unknown";
        if (object != null) {
            val = object.toString();
            try {
                String format = formats != null ? (formats.length > index ? formats[index] : formats[0]) : null;
                if (format == null) {
                    if (object instanceof PyObject) {
                        val = (String) (((PyObject) object).__str__()).__tojava__(String.class);
                    }
                } else {
                    Object transformedObject = object;
                    if (object instanceof PyFloat) {
                        transformedObject = ((PyFloat) object).__tojava__(Double.class);
                    } else if (object instanceof PyInteger) {
                        transformedObject = ((PyInteger) object).__tojava__(Integer.class);
                    } else if (object instanceof PyObject) {
                        transformedObject = ((PyObject) object).__str__().__tojava__(String.class);
                        try {
                            transformedObject = Double.parseDouble((String) transformedObject);
                        } catch (Exception e) {
                        // ignore as transformedObject will be unchanged
                        }
                    }
                    val = String.format(format, transformedObject);
                }
            } catch (Exception e) {
            // do nothing - the default value is object.toString
            }
        }
        stringFormattedValues[index] = val;
        index++;
    }
    return stringFormattedValues;
}

Example 60 with PyObject

use of org.python.core.PyObject in project gda-core by openGDA.

the class ScannableUtils method convertToJava.

/**
 * Converts a Jython PyObject into its Java equivalent if that is possible. This only works on the sorts of objects
 * dealt with in the Jython environment i.e. Strings, integers, floats (doubles) and arrays of these.
 * <P>
 * If this fails or cannot work for any reason then null is returned.
 *
 * @param object
 * @return Java equivalent object
 */
public static Object convertToJava(PyObject object) {
    Object output = null;
    if (object instanceof PyFloat) {
        output = object.__tojava__(Double.class);
    } else if (object instanceof PyInteger) {
        output = object.__tojava__(Integer.class);
    } else if (object instanceof PyString) {
        output = object.__tojava__(String.class);
    } else if (object instanceof PySequence || object instanceof PyList) {
        // create a Java array of PyObjects
        // ArrayList<PyObject> theList = (ArrayList<PyObject>)
        // object.__tojava__(ArrayList.class);
        // loop through and convert each item into its Java equivilent
        output = new Object[0];
        int length;
        if (object instanceof PySequence) {
            length = ((PySequence) object).__len__();
        } else {
            length = ((PyList) object).__len__();
        }
        for (int i = 0; i < length; i++) {
            PyObject item = null;
            if (object instanceof PySequence) {
                item = ((PySequence) object).__finditem__(i);
            } else {
                item = ((PyList) object).__finditem__(i);
            }
            if (item instanceof PyFloat) {
                Double thisItem = (Double) item.__tojava__(Double.class);
                output = ArrayUtils.add((Object[]) output, thisItem);
            } else if (item instanceof PyInteger) {
                Integer thisItem = (Integer) item.__tojava__(Integer.class);
                output = ArrayUtils.add((Object[]) output, thisItem);
            } else if (item instanceof PyString) {
                String thisItem = (String) item.__tojava__(String.class);
                output = ArrayUtils.add((Object[]) output, thisItem);
            }
        }
    }
    if (output == org.python.core.Py.NoConversion) {
        output = null;
    }
    return output;
}