public PVStructure createRequest() {
PVDataCreate dataCreate = PVDataFactory.getPVDataCreate();
PVStructure request = dataCreate.createPVStructure(requestType);
PVString commandField = request.getStringField("command");
commandField.put(commandName);
return request;
}
/** Read info from data server */
public void read(RPCClientImpl client, double REQUEST_TIMEOUT) throws Exception {
PVStructure pvRequest = createRequest();
PVInt keyField = pvRequest.getIntField("key");
keyField.put(key);
PVString patternField = pvRequest.getStringField("pattern");
patternField.put(pattern);
PVStructure pvResult = client.request(pvRequest, REQUEST_TIMEOUT);
// process result
PVStructureArray infos = pvResult.getStructureArrayField("channels");
StructureArrayData data = new StructureArrayData();
infos.get(0, infos.getLength(), data);
this.chNames = new String[data.data.length];
this.starts = new Instant[data.data.length];
this.ends = new Instant[data.data.length];
for (int i = 0; i < data.data.length; i++) {
PVStructure info = data.data[i];
chNames[i] = info.getStringField("name").get();
int start_secs = info.getIntField("start_sec").get();
int start_nano = info.getIntField("start_nano").get();
starts[i] = Instant.ofEpochSecond(start_secs, start_nano);
int end_secs = info.getIntField("end_sec").get();
int end_nano = info.getIntField("end_nano").get();
ends[i] = Instant.ofEpochSecond(end_secs, end_nano);
}
}
@Override
public void populatePVStructure(Serialiser serialiser, SpiralModel model, PVStructure pvStructure)
throws Exception {
PVString name = pvStructure.getSubField(PVString.class, "name");
name.put(model.getName());
PVString fastAxisName = pvStructure.getSubField(PVString.class, "fastAxisName");
fastAxisName.put(model.getFastAxisName());
PVString slowAxisName = pvStructure.getSubField(PVString.class, "slowAxisName");
slowAxisName.put(model.getSlowAxisName());
PVDouble scale = pvStructure.getSubField(PVDouble.class, "scale");
scale.put(model.getScale());
PVStructure bbStructure = pvStructure.getStructureField("boundingBox");
serialiser.setValues(model.getBoundingBox(), bbStructure);
}
public void process() {
pvResultValue.put("Hello " + pvArgumentValue.get());
super.process();
}