private void processConditionChange(DynamicValueCondition condition, Timestamp timestamp) {
if (condition != null) {
// ... characteristic "timestamp"
doForwardCharacteristic(
condition.getTimestamp(), timestamp, CharacteristicInfo.C_TIMESTAMP.getName());
// ... characteristic "status"
doForwardCharacteristic(
EpicsUtil.extratStatus(condition), timestamp, CharacteristicInfo.C_STATUS.getName());
// ... characteristic "severity"
doForwardCharacteristic(
EpicsUtil.toEPICSFlavorSeverity(condition),
timestamp,
CharacteristicInfo.C_SEVERITY.getName());
}
}
/** {@inheritDoc} */
protected void doInit() {
// get or create a real DAL property
DynamicValueProperty property = null;
try {
RemoteInfo ri = getProcessVariableAddress().toDalRemoteInfo();
PropertyFactory factory =
DALPropertyFactoriesProvider.getInstance()
.getPropertyFactory(getProcessVariableAddress().getControlSystem());
switch (getValueType()) {
case OBJECT:
property = factory.getProperty(ri);
break;
case STRING:
/*
* swende: 2010-03-06: this is a dirty quickfix which is related
* to problems with SDS displays that specifiy
* "pv[severity], String" as pv address / please remove if it
* does not work as expected or when all current SDS files at
* DESY have been propertly changed
*/
String characteristic = getProcessVariableAddress().getCharacteristic();
// If connection is made as pv[severity] or just pv, than ignore everything
// and go to default. In all other cases (e.g. pv[graphMin}, string), create
// a default property.
if (characteristic != null
&& !CharacteristicInfo.C_SEVERITY.getName().equals(characteristic)) {
property = factory.getProperty(ri);
break;
}
default:
property = factory.getProperty(ri, getValueType().getDalType(), null);
break;
}
if (property != null) {
setDalProperty(property);
}
} catch (Throwable e) {
forwardError(e.getLocalizedMessage());
}
}
/** {@inheritDoc} */
@Override
protected Object doGetCharacteristicSynchronously(String characteristicId, ValueType valueType)
throws Exception {
Object result = null;
// ... try to read the value
if (waitTillConnected(CONNECTION_TIMEOUT)) {
if (characteristicId.equals(CharacteristicInfo.C_SEVERITY.getName())) {
result = EpicsUtil.toEPICSFlavorSeverity(_dalProperty.getCondition());
} else if (characteristicId.equals(CharacteristicInfo.C_STATUS.getName())) {
result = EpicsUtil.extratStatus(_dalProperty.getCondition());
} else if (characteristicId.equals(CharacteristicInfo.C_TIMESTAMP.getName())) {
result = _dalProperty.getCondition().getTimestamp();
} else {
Object tmp = _dalProperty.getCharacteristic(characteristicId);
result = valueType != null ? ConverterUtil.convert(tmp, valueType) : tmp;
}
}
return result;
}