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AbstractSerialConnectionConfigXml.java
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AbstractSerialConnectionConfigXml.java
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package jmri.jmrix.configurexml;
import jmri.jmrix.SerialPortAdapter;
import org.jdom2.Element;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Abstract base (and partial implementation) for classes persisting the status
* of serial port adapters.
*
* @author Bob Jacobsen Copyright (c) 2003
*/
abstract public class AbstractSerialConnectionConfigXml extends AbstractConnectionConfigXml {
public AbstractSerialConnectionConfigXml() {
}
protected SerialPortAdapter adapter;
protected void getInstance(Object object) {
getInstance(); // over-ridden during migration
}
/**
* Default implementation for storing the static contents of the serial port
* implementation.
*
* @param object Object to store, of type AbstractSerialConnectionConfig
* @return Element containing the complete info
*/
@Override
public Element store(Object object) {
getInstance(object);
Element e = new Element("connection");
if (adapter == null) {
log.warn("No adapter found while saving serial port configuration {}", object.toString());
return null;
}
// many of the following are required by the DTD; failing to include
// them makes the XML file unreadable, but at least the next
// invocation of the program can then continue.
storeCommon(e, adapter);
if (adapter.getCurrentPortName() != null) {
e.setAttribute("port", adapter.getCurrentPortName());
} else {
e.setAttribute("port", Bundle.getMessage("noneSelected"));
}
if (adapter.getCurrentBaudRate() != null) {
e.setAttribute("speed", adapter.getCurrentBaudNumber()); // store by baud number, not by i18n combo display string
} else {
e.setAttribute("speed", Bundle.getMessage("noneSelected"));
}
e.setAttribute("class", this.getClass().getName());
extendElement(e);
return e;
}
/**
* Customizable method if you need to add anything more.
*
* @param e Element being created, update as needed
*/
@Override
protected void extendElement(Element e) {
}
@Override
public boolean load(Element shared, Element perNode) {
boolean result = true;
getInstance();
log.info("Starting to connect for \"{}\"", adapter.getSystemConnectionMemo()!=null ? adapter.getSystemConnectionMemo().getUserName() : "(Unknown Connection)");
// configure port name
String portName = perNode.getAttribute("port").getValue();
adapter.setPort(portName);
String baudNumber = perNode.getAttribute("speed").getValue(); // updated number string format since JMRI 4.16
adapter.configureBaudRateFromNumber(baudNumber);
loadCommon(shared, perNode, adapter);
// register, so can be picked up next time
register();
// try to open the port
if (adapter.getDisabled()) {
unpackElement(shared, perNode);
return result;
}
String status = adapter.openPort(portName, "JMRI app");
if (status != null) {
// indicates an error, return it
handleException(status, "opening connection", null, null, null);
// now force end to operation
log.debug("load failed");
return false;
}
// if successful so far, go ahead and configure
adapter.configure();
// once all the configure processing has happened, do any
// extra config
unpackElement(shared, perNode);
return result;
}
/**
* Update static data from XML file.
*
* @param element Top level Element to unpack.
*/
@Override
public void load(Element element, Object o) {
log.error("method with two args invoked");
}
// initialize logging
private static final Logger log = LoggerFactory.getLogger(AbstractSerialConnectionConfigXml.class);
}