/**
* Create XML content for scan data
*
* @param doc XML {@link Document}
* @param data {@link ScanData}
* @return XML {@link Element} for the scan data
*/
public static Node createXMLElement(final Document doc, final ScanData data) {
final Element result = doc.createElement("data");
for (String device_name : data.getDevices()) {
final Element device = doc.createElement("device");
device.appendChild(createXMLElement(doc, "name", device_name));
final Element samples = doc.createElement("samples");
for (ScanSample data_sample : data.getSamples(device_name)) {
final Element sample = doc.createElement("sample");
sample.setAttribute("id", Long.toString(data_sample.getSerial()));
sample.appendChild(createXMLElement(doc, "time", data_sample.getTimestamp()));
sample.appendChild(
createXMLElement(doc, "value", ScanSampleFormatter.asString(data_sample)));
samples.appendChild(sample);
}
device.appendChild(samples);
result.appendChild(device);
}
return result;
}
/** This 'Runnable' is executed by a demo client thread */
@Override
public void run() {
System.out.println("--- Client starts ---");
try {
// Pre-set xpos
final Device pv = new PVDevice(new DeviceInfo("motor_x", "xpos"));
pv.start();
new WaitForDevicesCondition(pv).await();
pv.write(0.0);
// Connect to scan server
final ScanServerInfo server_info = server.getInfo();
System.out.println("Thread using " + server_info);
// Submit two scans, holding on to the second one
final CommandSequence commands = createCommands();
long id = server.submitScan("My Test 1", commands.getXML(), true);
// Poll 1st scan until it finishes
while (true) {
final ScanInfo info = server.getScanInfo(id);
System.out.println("Poll: " + info + " @ " + info.getCurrentCommand());
if (info.getState() == ScanState.Finished) break;
Thread.sleep(100);
}
// Submit second scan
id = server.submitScan("My Test 2", commands.getXML(), true);
System.out.println("All Scans on server:");
List<ScanInfo> infos = server.getScanInfos();
for (ScanInfo info : infos) System.out.println(info);
// Poll 2nd scan until it finishes
while (true) {
final ScanInfo info = server.getScanInfo(id);
System.out.println("Poll: " + info);
if (info.getState() == ScanState.Finished) break;
Thread.sleep(100);
}
// Show finished scans
System.out.println("All Scans on server:");
infos = server.getScanInfos();
for (ScanInfo info : infos) System.out.println(info);
// Check if scan that just finished shows up as such
assertEquals(ScanState.Finished, server.getScanInfo(id).getState());
// Also wait for scan to end by monitoring xpos (not really useful)
System.out.println("Client waiting for PV to reach final value...");
new NumericValueCondition(pv, Comparison.EQUALS, 5.0, 0.1, null).await();
// Submit scan again, and pause it early on
id = server.submitScan("My Test 3", commands.getXML(), true);
// Wait for thread to start
while (true) {
final ScanInfo info = server.getScanInfo(id);
System.out.println("Started? " + info);
if (info.getState() != ScanState.Idle) break;
Thread.sleep(100);
}
// Pause it
server.pause(id);
System.out.println("All Scans on server:");
infos = server.getScanInfos();
// Only that one scan should be paused
for (ScanInfo info : infos) {
System.out.println(info);
if (info.getId() == id) assertEquals(ScanState.Paused, info.getState());
else assertTrue(ScanState.Paused != info.getState());
}
// Resume 'all' and pause 'all' should again pause the running scan
server.resume(-1);
server.pause(-1);
System.out.println("All Scans on server:");
infos = server.getScanInfos();
// Only that one scan should be paused
for (ScanInfo info : infos) {
System.out.println(info);
if (info.getId() == id) assertEquals(ScanState.Paused, info.getState());
else assertTrue(ScanState.Paused != info.getState());
}
// Should stay paused
for (int i = 0; i < 3; ++i) {
final ScanInfo info = server.getScanInfo(id);
System.out.println("Poll: " + info);
assertEquals(ScanState.Paused, info.getState());
Thread.sleep(1000);
}
System.out.println("Resume, wait to finish");
server.resume(id);
// Poll scan until it finishes
while (true) {
final ScanInfo info = server.getScanInfo(id);
System.out.println("Poll: " + info);
if (info.getState() == ScanState.Finished) break;
Thread.sleep(100);
}
// Fetch data
System.out.println("Logged data:");
final ScanData data = server.getScanData(id);
final List<String> devices = Arrays.asList(data.getDevices());
System.out.println("Devices: " + devices);
assertTrue(devices.contains("xpos"));
assertTrue(devices.contains("ypos"));
assertTrue(devices.contains("readback"));
new ScanDataIterator(data).printTable(System.out);
pv.stop();
} catch (Exception ex) {
client_error = ex;
}
System.out.println("--- Client ends ---");
}