protected void init() {
AxisCameraConfig config = parentSensor.getConfiguration();
presetsHandler = new PtzPresetsHandler(config.ptz);
// get PTZ limits
try {
URL optionsURL =
new URL(parentSensor.getHostUrl() + "/view/param.cgi?action=list&group=PTZ.Limit");
InputStream is = optionsURL.openStream();
BufferedReader bReader = new BufferedReader(new InputStreamReader(is));
// get limit values from IP stream
String line;
while ((line = bReader.readLine()) != null) {
// parse response
String[] tokens = line.split("=");
if (tokens[0].trim().equalsIgnoreCase("root.PTZ.Limit.L1.MinPan"))
minPan = Double.parseDouble(tokens[1]);
else if (tokens[0].trim().equalsIgnoreCase("root.PTZ.Limit.L1.MaxPan"))
maxPan = Double.parseDouble(tokens[1]);
else if (tokens[0].trim().equalsIgnoreCase("root.PTZ.Limit.L1.MinTilt"))
minTilt = Double.parseDouble(tokens[1]);
else if (tokens[0].trim().equalsIgnoreCase("root.PTZ.Limit.L1.MaxTilt"))
maxTilt = Double.parseDouble(tokens[1]);
else if (tokens[0].trim().equalsIgnoreCase("root.PTZ.Limit.L1.MaxZoom"))
maxZoom = Double.parseDouble(tokens[1]);
}
} catch (Exception e) {
e.printStackTrace();
}
// build SWE data structure for the tasking parameters
VideoCamHelper videoHelper = new VideoCamHelper();
Collection<String> presetList = presetsHandler.getPresetNames();
commandData =
videoHelper.getPtzTaskParameters(
getName(), minPan, maxPan, minTilt, maxTilt, minZoom, maxZoom, presetList);
}
@Override
public CommandStatus execCommand(DataBlock command) throws SensorException {
// associate command data to msg structure definition
DataChoice commandMsg = (DataChoice) commandData.copy();
commandMsg.setData(command);
DataComponent component = ((DataChoiceImpl) commandMsg).getSelectedItem();
String itemID = component.getName();
DataBlock data = component.getData();
String itemValue = data.getStringValue();
// NOTE: you can use validate() method in DataComponent
// component.validateData(errorList); // give it a list so it can store the errors
// if (errorList != empty) //then you have an error
try {
// set parameter value on camera
// NOTE: except for "presets", the item IDs are labeled the same as the Axis parameters so
// just use those in the command
if (itemID.equals(VideoCamHelper.TASKING_PTZPRESET)) {
PtzPreset preset = presetsHandler.getPreset(data.getStringValue());
// pan + tilt + zoom (supported since v2 at least)
URL optionsURL =
new URL(
parentSensor.getHostUrl()
+ "/com/ptz.cgi?pan="
+ preset.pan
+ "&tilt="
+ preset.tilt
+ "&zoom="
+ preset.zoom);
InputStream is = optionsURL.openStream();
is.close();
}
// Act on full PTZ Position
else if (itemID.equalsIgnoreCase(VideoCamHelper.TASKING_PTZ_POS)) {
URL optionsURL =
new URL(
parentSensor.getHostUrl()
+ "/com/ptz.cgi?pan="
+ data.getStringValue(0)
+ "&tilt="
+ data.getStringValue(1)
+ "&zoom="
+ data.getStringValue(2));
InputStream is = optionsURL.openStream();
is.close();
} else {
String cmd = " ";
if (itemID.equals(VideoCamHelper.TASKING_PAN)) cmd = "pan";
else if (itemID.equals(VideoCamHelper.TASKING_RPAN)) cmd = "rpan";
else if (itemID.equals(VideoCamHelper.TASKING_TILT)) cmd = "tilt";
else if (itemID.equals(VideoCamHelper.TASKING_RTILT)) cmd = "rtilt";
else if (itemID.equals(VideoCamHelper.TASKING_ZOOM)) cmd = "zoom";
else if (itemID.equals(VideoCamHelper.TASKING_RZOOM)) cmd = "rzoom";
URL optionsURL =
new URL(parentSensor.getHostUrl() + "/com/ptz.cgi?" + cmd + "=" + itemValue);
InputStream is = optionsURL.openStream();
is.close();
}
} catch (Exception e) {
throw new SensorException("Error connecting to Axis PTZ control", e);
}
CommandStatus cmdStatus = new CommandStatus();
cmdStatus.status = StatusCode.COMPLETED;
return cmdStatus;
}