/** Request a connection to the book channel. */
protected void requestBookConnection() {
try {
final Channel bookChannel = getNode().getChannel(MagnetMainSupply.FIELD_BOOK_HANDLE);
bookChannel.requestConnection();
} catch (NoSuchChannelException exception) {
} // not important at this point
}
/** handle the connection event */
public void connectionMade(final Channel channel) {
try {
if (channel == _lowerChannel) {
_lowerMonitor = channel.addMonitorValue(this, Monitor.VALUE);
} else if (channel == _upperChannel) {
_upperMonitor = channel.addMonitorValue(this, Monitor.VALUE);
}
Channel.flushIO();
} catch (ConnectionException exception) {
} catch (MonitorException excepiton) {
}
}
/** set a new channel whose limits we wish to monitor */
public void setChannel(final Channel channel) {
synchronized (this) {
if (_lowerChannel != null) {
_lowerChannel.removeConnectionListener(this);
if (_lowerMonitor != null) {
_lowerMonitor.clear();
_lowerMonitor = null;
}
}
final String lowerLimitPV = channel.channelName() + ".LOPR";
_lowerChannel = ChannelFactory.defaultFactory().getChannel(lowerLimitPV);
_lowerChannel.addConnectionListener(this);
_lowerChannel.requestConnection();
if (_upperChannel != null) {
_upperChannel.removeConnectionListener(this);
if (_upperMonitor != null) {
_upperMonitor.clear();
_upperMonitor = null;
}
}
final String upperLimitPV = channel.channelName() + ".HOPR";
_upperChannel = ChannelFactory.defaultFactory().getChannel(upperLimitPV);
_upperChannel.addConnectionListener(this);
_upperChannel.requestConnection();
}
}
/** Creates new BpmAgent */
public BpmAgent(AcceleratorSeq aSequence, BPM newBpmNode) {
bpmNode = newBpmNode;
sequence = aSequence;
xavgch = bpmNode.getChannel(BPM.X_TBT_HANDLE);
yavgch = bpmNode.getChannel(BPM.Y_TBT_HANDLE);
xavgch.requestConnection();
yavgch.requestConnection();
bpmNode.getChannel(BPM.X_AVG_HANDLE).requestConnection();
bpmNode.getChannel(BPM.Y_AVG_HANDLE).requestConnection();
// xavgch.setSyncRequest(true);
// yavgch.setSyncRequest(true);
// xavgch.connect();
// yavgch.connect();
// xavgch.pendIO(5);
// yavgch.pendIO(5);
// xavgch.setSyncRequest(false);
// yavgch.setSyncRequest(false);
}
/** Get the horizontal TBT array * */
public double[] getXAvgTBTArray() {
double[] value;
int size = 0;
try {
size = xavgch.elementCount();
} catch (ConnectionException e) {
}
value = new double[size];
try {
value = xavgch.getArrDbl();
} catch (ConnectionException e) {
System.err.println("Unable to connect to: " + xavgch.channelName());
} catch (GetException e) {
System.err.println("Unable to get process variables.");
}
return value;
}
/**
* Get the field in this electromagnet via ca.
*
* @return the readback field in T/(m^(n-1)), where n = 1 for dipole, 2 for quad, etc.
*/
public double getFieldReadback() throws ConnectionException, GetException {
Channel fieldRBChannel = getAndConnectChannel(FIELD_RB_HANDLE);
return toFieldFromCA(fieldRBChannel.getValDbl());
}
public double getMainFieldSetting(final Electromagnet magnet) {
final Channel channel = magnet.getChannel(MagnetMainSupply.FIELD_SET_HANDLE);
return _dataSource.getChannelSnapshotValue(channel.channelName())[0];
}
/** Test if the BPM node is okay */
public boolean isConnected() {
return xavgch.isConnected()
&& yavgch.isConnected()
&& bpmNode.getChannel(BPM.X_AVG_HANDLE).isConnected()
&& bpmNode.getChannel(BPM.Y_AVG_HANDLE).isConnected();
}