/**
* Initialize
*
* @param command Command description
* @param jython Jython interpreter, may be <code>null</code>
*/
public LoopCommandImpl(final LoopCommand command, final JythonSupport jython) throws Exception {
super(command, jython);
reverse =
(command.getStart() <= command.getEnd() && command.getStepSize() < 0)
|| (command.getStart() >= command.getEnd() && command.getStepSize() > 0);
implementation = ScanCommandImplTool.getInstance().implement(command.getBody(), jython);
}
@Test
public void testDeviceContextHelper() throws Exception {
final MacroContext macros = new MacroContext("T=Test");
final List<ScanCommand> commands =
Arrays.asList(
(ScanCommand) new SetCommand("device1", 3.14),
(ScanCommand) new SetCommand("xpos", 2),
(ScanCommand) new SetCommand("motor_x", 3));
final JythonSupport jython = new JythonSupport();
final List<ScanCommandImpl<?>> main_scan =
ScanCommandImplTool.getInstance().implement(commands, jython);
final DeviceContext device_context = new DeviceContext();
DeviceContextHelper.addScanDevices(device_context, macros, main_scan);
final Device[] devices = device_context.getDevices();
System.out.println(Arrays.toString(devices));
// Devices from commands, but account for motor_x = alias xpos
assertThat(devices.length, equalTo(commands.size() - 1));
// Check lookup via alias
final Device aliased_device = device_context.getDevice("xpos");
assertThat(aliased_device.getName(), equalTo("motor_x"));
// Check lookup via 'real' name
final Device real_device = device_context.getDevice("motor_x");
assertThat(real_device, sameInstance(aliased_device));
}