private void intervalSave(PointValueTime pvt) {
synchronized (intervalLoggingLock) {
if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.MAXIMUM) {
if (intervalValue == null) intervalValue = pvt;
else if (pvt != null) {
if (intervalValue.getDoubleValue() < pvt.getDoubleValue()) intervalValue = pvt;
}
} else if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.MINIMUM) {
if (intervalValue == null) intervalValue = pvt;
else if (pvt != null) {
if (intervalValue.getDoubleValue() > pvt.getDoubleValue()) intervalValue = pvt;
}
} else if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.AVERAGE) {
// Using the averaging values, ensure we keep the most recent values and pop off the old
// ones
if (vo.isOverrideIntervalLoggingSamples()) {
while (averagingValues.size() >= vo.getIntervalLoggingSampleWindowSize()) {
averagingValues.remove(0); // Size -1 for the next item we are going to add
}
}
averagingValues.add(pvt);
}
}
}
//
//
// Data points
//
public void saveDataPoint(DataPointVO point) {
stopDataPoint(point.getId());
// Since the point's data type may have changed, we must ensure that the other attrtibutes are
// still ok with
// it.
int dataType = point.getPointLocator().getDataTypeId();
// Chart renderer
if (point.getChartRenderer() != null && !point.getChartRenderer().getDef().supports(dataType))
// Return to a default renderer
point.setChartRenderer(null);
// Text renderer
if (point.getTextRenderer() != null && !point.getTextRenderer().getDef().supports(dataType))
// Return to a default renderer
point.defaultTextRenderer();
// Event detectors
Iterator<PointEventDetectorVO> peds = point.getEventDetectors().iterator();
while (peds.hasNext()) {
PointEventDetectorVO ped = peds.next();
if (!ped.getDef().supports(dataType))
// Remove the detector.
peds.remove();
}
new DataPointDao().saveDataPoint(point);
if (point.isEnabled()) startDataPoint(point);
}
private boolean initializeDataSource(DataSourceVO<?> vo) {
synchronized (runningDataSources) {
// If the data source is already running, just quit.
if (isDataSourceRunning(vo.getId())) return false;
// Ensure that the data source is enabled.
Assert.isTrue(vo.isEnabled());
// Create and initialize the runtime version of the data source.
DataSourceRT dataSource = vo.createDataSourceRT();
dataSource.initialize();
// Add it to the list of running data sources.
runningDataSources.add(dataSource);
// Add the enabled points to the data source.
List<DataPointVO> dataSourcePoints = new DataPointDao().getDataPoints(vo.getId(), null);
for (DataPointVO dataPoint : dataSourcePoints) {
if (dataPoint.isEnabled()) startDataPoint(dataPoint);
}
LOG.info("Data source '" + vo.getName() + "' initialized");
return true;
}
}
@DwrPermission(user = true)
public ProcessResult getHistoryTableData(int limit) {
DataPointVO pointVO = Common.getUser().getEditPoint();
PointValueFacade facade = new PointValueFacade(pointVO.getId());
List<PointValueTime> rawData = facade.getLatestPointValues(limit);
List<RenderedPointValueTime> renderedData =
new ArrayList<RenderedPointValueTime>(rawData.size());
for (PointValueTime pvt : rawData) {
RenderedPointValueTime rpvt = new RenderedPointValueTime();
rpvt.setValue(Functions.getHtmlText(pointVO, pvt));
rpvt.setTime(Functions.getTime(pvt));
if (pvt.isAnnotated()) {
AnnotatedPointValueTime apvt = (AnnotatedPointValueTime) pvt;
rpvt.setAnnotation(apvt.getAnnotation(getTranslations()));
}
renderedData.add(rpvt);
}
ProcessResult response = new ProcessResult();
response.addData("history", renderedData);
addAsof(response);
return response;
}
public static PointDetailsState getPointData() {
// Get the point from the user's session. It should have been set by the controller.
HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
User user = Common.getUser(request);
DataPointVO pointVO = user.getEditPoint();
// Create the watch list state.
Map<String, Object> model = new HashMap<String, Object>();
// Get the data point status from the data image.
DataPointRT pointRT = Common.runtimeManager.getDataPoint(pointVO.getId());
PointDetailsState state = new PointDetailsState();
state.setId(Integer.toString(pointVO.getId()));
PointValueTime pointValue =
prepareBasePointState(Integer.toString(pointVO.getId()), state, pointVO, pointRT, model);
setPrettyText(request, state, pointVO, model, pointValue);
setChange(pointVO, state, pointRT, request, model, user);
setEvents(pointVO, user, model);
setMessages(state, request, "dataPointMessages.jsp", model);
return state;
}
@DwrPermission(user = true)
public ProcessResult getFlipbookData(int limit) {
HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
DataPointVO vo = Common.getUser(request).getEditPoint();
PointValueFacade facade = new PointValueFacade(vo.getId());
List<PointValueTime> values = facade.getLatestPointValues(limit);
Collections.reverse(values);
List<ImageValueBean> result = new ArrayList<ImageValueBean>();
for (PointValueTime pvt : values) {
ImageValue imageValue = (ImageValue) pvt.getValue();
String uri =
ImageValueServlet.servletPath
+ ImageValueServlet.historyPrefix
+ pvt.getTime()
+ "_"
+ vo.getId()
+ "."
+ imageValue.getTypeExtension();
result.add(new ImageValueBean(Functions.getTime(pvt), uri));
}
ProcessResult response = new ProcessResult();
response.addData("images", result);
addAsof(response);
return response;
}
public void jsonWrite(ObjectWriter writer) throws IOException, JsonException {
DataPointDao dataPointDao = new DataPointDao();
DataPointVO dp = dataPointDao.getDataPoint(dataPointId);
String xid;
if (dp == null) xid = null;
else xid = dp.getXid();
writer.writeEntry("dataPointId", xid);
}
public void jsonRead(JsonReader reader, JsonObject jsonObject) throws JsonException {
DataPointDao dataPointDao = new DataPointDao();
String xid = jsonObject.getString("dataPointId");
if (xid == null)
throw new TranslatableJsonException("emport.error.publishedPoint.missing", "dataPointId");
DataPointVO vo = dataPointDao.getDataPoint(xid);
if (vo == null) throw new TranslatableJsonException("emport.error.missingPoint", xid);
dataPointId = vo.getId();
}
@Override
public void terminate() {
terminateIntervalLogging();
if (detectors != null) {
for (PointEventDetectorRT pedRT : detectors) {
Common.runtimeManager.removeDataPointListener(vo.getId(), pedRT);
pedRT.terminate();
}
}
Common.eventManager.cancelEventsForDataPoint(vo.getId());
}
public static void jsonWriteVarContext(ObjectWriter writer, List<IntStringPair> context)
throws IOException, JsonException {
DataPointDao dataPointDao = new DataPointDao();
JsonArray pointList = new JsonArray();
for (IntStringPair p : context) {
DataPointVO dp = dataPointDao.getDataPoint(p.getKey());
if (dp != null) {
JsonObject point = new JsonObject();
pointList.add(point);
point.put("varName", new JsonString(p.getValue()));
point.put("dataPointXid", new JsonString(dp.getXid()));
}
}
writer.writeEntry("context", pointList);
}
public static String contextToString(List<IntStringPair> context) {
DataPointDao dataPointDao = new DataPointDao();
StringBuilder sb = new StringBuilder();
boolean first = true;
for (IntStringPair ivp : context) {
DataPointVO dp = dataPointDao.getDataPoint(ivp.getKey());
if (first) first = false;
else sb.append(", ");
if (dp == null) sb.append("?=");
else sb.append(dp.getName()).append("=");
sb.append(ivp.getValue());
}
return sb.toString();
}
//
// /
// / Listeners
// /
//
private void fireEvents(
PointValueTime oldValue, PointValueTime newValue, boolean set, boolean backdate) {
DataPointListener l = Common.runtimeManager.getDataPointListeners(vo.getId());
if (l != null)
Common.backgroundProcessing.addWorkItem(
new EventNotifyWorkItem(l, oldValue, newValue, set, backdate));
}
//
//
// Single value
//
@Override
public PointValueTime getPointValueBefore(long time) {
for (PointValueTime pvt : valueCache.getCacheContents()) {
if (pvt.getTime() < time) return pvt;
}
return Common.databaseProxy.newPointValueDao().getPointValueBefore(vo.getId(), time);
}
@Override
public PointValueTime getPointValueAfter(long time) {
List<PointValueTime> pvts = valueCache.getCacheContents();
for (int i = pvts.size() - 1; i >= 0; i--) {
PointValueTime pvt = pvts.get(i);
if (pvt.getTime() >= time) return pvt;
}
return Common.databaseProxy.newPointValueDao().getPointValueAfter(vo.getId(), time);
}
@Override
public void scheduleTimeout(long fireTime) {
synchronized (intervalLoggingLock) {
DataValue value;
if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.INSTANT)
value = PointValueTime.getValue(pointValue);
else if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.MAXIMUM
|| vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.MINIMUM) {
value = PointValueTime.getValue(intervalValue);
intervalValue = pointValue;
} else if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.AVERAGE) {
// We won't allow logging values until we have a full average window
// If we don't have enough averaging values then we will bail and wait for more
if (vo.isOverrideIntervalLoggingSamples()
&& (averagingValues.size() != vo.getIntervalLoggingSampleWindowSize())) return;
IValueTime endValue = intervalValue;
if (!averagingValues.isEmpty()) endValue = averagingValues.get(averagingValues.size() - 1);
AnalogStatistics stats =
new AnalogStatistics(
intervalStartTime, fireTime, intervalValue, averagingValues, endValue);
if (stats.getAverage() == null) value = null;
else value = new NumericValue(stats.getAverage());
// Compute the center point of our average data, starting by finding where our period
// started
long sampleWindowStartTime;
if (vo.isOverrideIntervalLoggingSamples())
sampleWindowStartTime = averagingValues.get(0).getTime();
else sampleWindowStartTime = intervalStartTime;
intervalStartTime = fireTime;
fireTime =
sampleWindowStartTime
+ (fireTime - sampleWindowStartTime)
/ 2L; // Fix to simulate center tapped filter (un-shift the average)
intervalValue = pointValue;
if (!vo.isOverrideIntervalLoggingSamples()) averagingValues.clear();
} else
throw new ShouldNeverHappenException(
"Unknown interval logging type: " + vo.getIntervalLoggingType());
if (value != null) valueCache.logPointValueAsync(new PointValueTime(value, fireTime), null);
}
}
//
//
// Lifecycle
//
@Override
public void initialize() {
// Get the latest value for the point from the database.
pointValue = valueCache.getLatestPointValue();
// Set the tolerance origin if this is a numeric
if (pointValue != null && pointValue.getValue() instanceof NumericValue)
toleranceOrigin = pointValue.getDoubleValue();
// Add point event listeners
for (PointEventDetectorVO ped : vo.getEventDetectors()) {
if (detectors == null) detectors = new ArrayList<PointEventDetectorRT>();
PointEventDetectorRT pedRT = ped.createRuntime();
detectors.add(pedRT);
pedRT.initialize();
Common.runtimeManager.addDataPointListener(vo.getId(), pedRT);
}
initializeIntervalLogging();
}
//
// / Interval logging
//
private void initializeIntervalLogging() {
synchronized (intervalLoggingLock) {
if (vo.getLoggingType() != DataPointVO.LoggingTypes.INTERVAL) return;
// Are we using a custom timer?
if (this.timer == null)
intervalLoggingTask =
new TimeoutTask(
new FixedRateTrigger(
0,
Common.getMillis(
vo.getIntervalLoggingPeriodType(), vo.getIntervalLoggingPeriod())),
this);
else
intervalLoggingTask =
new TimeoutTask(
new FixedRateTrigger(
0,
Common.getMillis(
vo.getIntervalLoggingPeriodType(), vo.getIntervalLoggingPeriod())),
this,
this.timer);
intervalValue = pointValue;
if (vo.getIntervalLoggingType() == DataPointVO.IntervalLoggingTypes.AVERAGE) {
intervalStartTime = System.currentTimeMillis();
averagingValues = new ArrayList<IValueTime>();
}
}
}
private void startDataPoint(DataPointVO vo) {
synchronized (dataPoints) {
Assert.isTrue(vo.isEnabled());
// Only add the data point if its data source is enabled.
DataSourceRT ds = getRunningDataSource(vo.getDataSourceId());
if (ds != null) {
// Change the VO into a data point implementation.
DataPointRT dataPoint = new DataPointRT(vo, vo.getPointLocator().createRuntime());
// Add/update it in the data image.
dataPoints.put(dataPoint.getId(), dataPoint);
// Initialize it.
dataPoint.initialize();
DataPointListener l = getDataPointListeners(vo.getId());
if (l != null) l.pointInitialized();
// Add/update it in the data source.
ds.addDataPoint(dataPoint);
}
}
}
@Override
protected void createStateImpl(
RuntimeManager rtm, HttpServletRequest request, JspComponentState state) {
String value;
DataPointRT dataPointRT = rtm.getDataPoint(dataPointVO.getId());
if (dataPointRT == null) value = disabledValue;
else {
PointValueTime pvt = dataPointRT.getPointValue();
if (pvt != null && pvt.getValue() instanceof ImageValue) {
// Text renderers don't help here. Create a thumbnail.
Map<String, Object> model = new HashMap<String, Object>();
model.put("point", dataPointVO);
model.put("pointValue", pvt);
value = BaseDwr.generateContent(request, "imageValueThumbnail.jsp", model);
} else {
int hint = raw ? TextRenderer.HINT_RAW : TextRenderer.HINT_FULL;
value = dataPointVO.getTextRenderer().getText(pvt, hint);
if (pvt != null && time) state.setTime(pvt.getTime());
}
}
state.setValue(value);
}
@Override
public List<PointValueTime> getPointValuesBetween(long from, long to) {
List<PointValueTime> result =
Common.databaseProxy.newPointValueDao().getPointValuesBetween(vo.getId(), from, to);
for (PointValueTime pvt : valueCache.getCacheContents()) {
if (pvt.getTime() >= from && pvt.getTime() < to) {
int index = Collections.binarySearch(result, pvt, pvtTimeComparator);
if (index < 0) result.add(-index - 1, pvt);
}
}
return result;
}
public static void jsonReadVarContext(JsonObject json, List<IntStringPair> context)
throws JsonException {
JsonArray jsonContext = json.getJsonArray("context");
if (jsonContext != null) {
context.clear();
DataPointDao dataPointDao = new DataPointDao();
for (JsonValue jv : jsonContext) {
JsonObject jo = jv.toJsonObject();
String xid = jo.getString("dataPointXid");
if (xid == null)
throw new TranslatableJsonException("emport.error.meta.missing", "dataPointXid");
DataPointVO dp = dataPointDao.getDataPoint(xid);
if (dp == null) throw new TranslatableJsonException("emport.error.missingPoint", xid);
String var = jo.getString("varName");
if (var == null)
throw new TranslatableJsonException("emport.error.meta.missing", "varName");
context.add(new IntStringPair(dp.getId(), var));
}
}
}
@Override
public DataPointVO mapRow(ResultSet rs, int rowNum) throws SQLException {
DataPointVO dp =
(DataPointVO) SerializationHelper.readObjectInContext(rs.getBlob(4).getBinaryStream());
dp.setId(rs.getInt(1));
dp.setXid(rs.getString(2));
dp.setDataSourceId(rs.getInt(3));
// Data source information.
dp.setDataSourceName(rs.getString(5));
dp.setDataSourceXid(rs.getString(6));
dp.setDataSourceTypeName(rs.getString(7));
return dp;
}
public DataPointRT(DataPointVO vo, PointLocatorRT pointLocator) {
this.vo = vo;
this.pointLocator = pointLocator;
valueCache = new PointValueCache(vo.getId(), vo.getDefaultCacheSize());
}
@Override
public String toString() {
return "DataPointRT(id=" + getId() + ", name=" + vo.getName() + ")";
}
@Override
public int getDataTypeId() {
return vo.getPointLocator().getDataTypeId();
}
//
// /
// / Properties
// /
//
public int getId() {
return vo.getId();
}
//
// / Purging
//
public void resetValues() {
valueCache.reset();
if (vo.getLoggingType() != DataPointVO.LoggingTypes.NONE)
pointValue = valueCache.getLatestPointValue();
}
/**
* To allow simulation of points using a timer implementation
*
* @param vo
* @param pointLocator
* @param timer
*/
public DataPointRT(DataPointVO vo, PointLocatorRT pointLocator, AbstractTimer timer) {
this.vo = vo;
this.pointLocator = pointLocator;
valueCache = new PointValueCache(vo.getId(), vo.getDefaultCacheSize());
this.timer = timer;
}
private void savePointValue(
PointValueTime newValue, SetPointSource source, boolean async, boolean saveToDatabase) {
// Null values are not very nice, and since they don't have a specific meaning they are hereby
// ignored.
if (newValue == null) return;
// Check the data type of the value against that of the locator, just for fun.
int valueDataType = DataTypes.getDataType(newValue.getValue());
if (valueDataType != DataTypes.UNKNOWN && valueDataType != vo.getPointLocator().getDataTypeId())
// This should never happen, but if it does it can have serious downstream consequences. Also,
// we need
// to know how it happened, and the stack trace here provides the best information.
throw new ShouldNeverHappenException(
"Data type mismatch between new value and point locator: newValue="
+ DataTypes.getDataType(newValue.getValue())
+ ", locator="
+ vo.getPointLocator().getDataTypeId());
// Check if this value qualifies for discardation.
if (vo.isDiscardExtremeValues()
&& DataTypes.getDataType(newValue.getValue()) == DataTypes.NUMERIC) {
double newd = newValue.getDoubleValue();
if (newd < vo.getDiscardLowLimit() || newd > vo.getDiscardHighLimit())
// Discard the value
return;
}
if (newValue.getTime() > System.currentTimeMillis() + SystemSettingsDao.getFutureDateLimit()) {
// Too far future dated. Toss it. But log a message first.
LOG.warn(
"Future dated value detected: pointId="
+ vo.getId()
+ ", value="
+ newValue.getStringValue()
+ ", type="
+ vo.getPointLocator().getDataTypeId()
+ ", ts="
+ newValue.getTime(),
new Exception());
return;
}
boolean backdated = pointValue != null && newValue.getTime() < pointValue.getTime();
// Determine whether the new value qualifies for logging.
boolean logValue;
// ... or even saving in the cache.
boolean saveValue = true;
switch (vo.getLoggingType()) {
case DataPointVO.LoggingTypes.ON_CHANGE:
if (pointValue == null) logValue = true;
else if (backdated)
// Backdated. Ignore it
logValue = false;
else {
if (newValue.getValue() instanceof NumericValue) {
// Get the new double
double newd = newValue.getDoubleValue();
// See if the new value is outside of the tolerance.
double diff = toleranceOrigin - newd;
if (diff < 0) diff = -diff;
if (diff > vo.getTolerance()) {
toleranceOrigin = newd;
logValue = true;
} else logValue = false;
} else logValue = !ObjectUtils.equals(newValue.getValue(), pointValue.getValue());
}
saveValue = logValue;
break;
case DataPointVO.LoggingTypes.ALL:
logValue = true;
break;
case DataPointVO.LoggingTypes.ON_TS_CHANGE:
if (pointValue == null) logValue = true;
else if (backdated)
// Backdated. Ignore it
logValue = false;
else logValue = newValue.getTime() != pointValue.getTime();
saveValue = logValue;
break;
case DataPointVO.LoggingTypes.INTERVAL:
if (!backdated) intervalSave(newValue);
default:
logValue = false;
}
if (!saveToDatabase) logValue = false;
if (saveValue) valueCache.savePointValue(newValue, source, logValue, async);
// add annotation to newValue before firing events so event detectors can
// fetch the annotation
if (source != null) {
newValue =
new AnnotatedPointValueTime(
newValue.getValue(), newValue.getTime(), source.getSetPointSourceMessage());
}
// Ignore historical values.
if (pointValue == null || newValue.getTime() >= pointValue.getTime()) {
PointValueTime oldValue = pointValue;
pointValue = newValue;
fireEvents(oldValue, newValue, source != null, false);
} else fireEvents(null, newValue, false, true);
}
public int getDataSourceId() {
return vo.getDataSourceId();
}
