Java PyObject.__tojava__方法代碼示例

import org.python.core.PyObject; //導入方法依賴的package包/類
public static NifiClient create(String address, int port) {
    NifiClientFactory factory = new NifiClientFactory();

    PyObject clientObject = factory.nifiClientClass.__call__(new PyString(address),
                                                    new PyString(Integer.toString(port)));
    return (NifiClient)clientObject.__tojava__(NifiClient.class);
}
 

import org.python.core.PyObject; //導入方法依賴的package包/類
@Override
public ArrayList<PyObjectAdapter> getChildren(Object object) {
	if (!(object instanceof PyDictionary))
		throw new IllegalArgumentException("object is not instance of PyDictionary");
	final PyDictionary pyDict = (PyDictionary)object;
	PyList pyList = pyDict.keys();
	int count = pyList.__len__();
	ArrayList<PyObjectAdapter> list = new ArrayList<PyObjectAdapter>(count);
	PyObject obj;		
	for (int i = 0; i < count; ++i){
		final PyObject pyKey = pyList.__getitem__(i);
		Object name = pyKey.__tojava__(String.class);
		if ((name == Py.NoConversion) || (!(name instanceof String))) continue;			
		obj = pyDict.__finditem__(pyKey);
		list.add(
			new PyObjectAdapter(
					(String)name,
					new PyObjectPlace(){
						private PyObject myPlace = pyKey;
						@Override
						public void set(PyObject newValue) {
							pyDict.__setitem__(myPlace, newValue);
						}
						@Override
						public PyObject get(){
							try{
								return pyDict.__finditem__(myPlace);
							} catch (Exception e){
								return null;
							}
						}
					}
			)
		);
	}
	return list;
}
 

import org.python.core.PyObject; //導入方法依賴的package包/類
public static boolean isatty(PyObject fdObj) {
    if (fdObj instanceof PyInteger) {
        FileDescriptor fd;
        switch (fdObj.asInt()) {
        case 0:
            fd = FileDescriptor.in;
            break;
        case 1:
            fd = FileDescriptor.out;
            break;
        case 2:
            fd = FileDescriptor.err;
            break;
        default:
            throw Py.NotImplementedError("Integer file descriptor compatibility only "
                                         + "available for stdin, stdout and stderr (0-2)");
        }
        return posix.isatty(fd);
    }

    Object tojava = fdObj.__tojava__(FileDescriptor.class);
    if (tojava != Py.NoConversion) {
        return posix.isatty((FileDescriptor)tojava);
    }

    tojava = fdObj.__tojava__(IOBase.class);
    if (tojava == Py.NoConversion) {
        throw Py.TypeError("a file descriptor is required");
    }
    return ((IOBase)tojava).isatty();
}
 

import org.python.core.PyObject; //導入方法依賴的package包/類
public String getString(String name, String def) {
    PyObject value = this.args.get(name);
    if(value == null) {
        return def;
    }
    return (String)value.__tojava__(String.class);
}
 

import org.python.core.PyObject; //導入方法依賴的package包/類
@Override
public ArrayList<PyObjectAdapter> getChildren(Object object) {
	if (!(object instanceof PyInstance))
		throw new IllegalArgumentException("object is not instance of PyInstance");
	PyInstance pyInstance = (PyInstance)object;
	PyList keys = null;
	if (pyInstance.__dict__ instanceof PyDictionary)
		keys = ((PyDictionary)pyInstance.__dict__).keys();
	if (pyInstance.__dict__ instanceof PyStringMap)
		keys = ((PyStringMap)pyInstance.__dict__).keys();
	if (keys == null)
		return null;		
	final PyObject pyDict = pyInstance.__dict__;
	int count = keys.__len__();
	ArrayList<PyObjectAdapter> list = new ArrayList<PyObjectAdapter>(count);
	PyObject obj;		
	for (int i = 0; i < count; ++i){
		final PyObject key = keys.__getitem__(i);
		Object name = (String)key.__tojava__(String.class);
		if ((name == Py.NoConversion) || (!(name instanceof String))) continue;
		obj = pyDict.__finditem__(key);
		list.add(
			new PyObjectAdapter(
					(String)name,
					new PyObjectPlace(){
						private PyObject myPlace = key;
						@Override
						public void set(PyObject newValue) {
							pyDict.__setitem__(myPlace, newValue);
						}
						@Override
						public PyObject get(){
							try{
								return pyDict.__finditem__(myPlace);
							} catch (Exception e){
								return null;
							}
						}
					}
			)
		);
	}
	return list;
}
 

import org.python.core.PyObject; //導入方法依賴的package包/類
/** {@inheritDoc} */
public Object getScriptedObject(ScriptSource scriptSourceLocator, Class<?>... scriptInterfaces) throws IOException, ScriptCompilationException {
    String basePath = "";

    /* TODO: how to do this when running under Tomcat?
    ContextHandler handler = WebAppContext.getCurrentWebAppContext();
    if (handler != null) {
    	File root = handler.getBaseResource().getFile();
    	if (root != null && root.exists()) {
    		basePath = root.getAbsolutePath() + File.separator + "WEB-INF" + File.separator;
    	}
    }
    */

    String strScript = scriptSourceLocator.getScriptAsString();
    if (scriptInterfaces.length > 0) {
        try {
            PySystemState state = new PySystemState();
            if (!"".equals(basePath)) {
                // Add webapp paths that can contain classes and .jar files to python search path
                state.path.insert(0, Py.newString(basePath + "classes"));
                File jarRoot = new File(basePath + "lib");
                if (jarRoot.exists()) {
                    for (String filename : jarRoot.list(new FilenameFilter() {
                        public boolean accept(File dir, String name) {
                            return (name.endsWith(".jar"));
                        }
                    })) {
                        state.path.insert(1, Py.newString(basePath + "lib" + File.separator + filename));
                    }
                }
            }
            @SuppressWarnings("resource")
            PythonInterpreter interp = new PythonInterpreter(null, state);
            interp.exec(strScript);
            PyObject getInstance = interp.get("getInstance");
            if (!(getInstance instanceof PyFunction)) {
                throw new ScriptCompilationException("\"getInstance\" is not a function.");
            }
            PyObject _this;
            if (arguments == null) {
                _this = ((PyFunction) getInstance).__call__();
            } else {
                PyObject[] args = new PyObject[arguments.length];
                for (int i = 0; i < arguments.length; i++) {
                    args[i] = PyJavaType.wrapJavaObject(arguments[i]);
                }
                _this = ((PyFunction) getInstance).__call__(args);
            }
            return _this.__tojava__(scriptInterfaces[0]);
        } catch (Exception ex) {
            logger.error("Error while loading script.", ex);
            if (ex instanceof IOException) {
                // Raise to caller
                throw (IOException) ex;
            } else if (ex instanceof ScriptCompilationException) {
                // Raise to caller
                throw (ScriptCompilationException) ex;
            }

            throw new ScriptCompilationException(ex.getMessage());
        }
    }
    logger.error("No scriptInterfaces provided.");
    return null;
}