/**
* Creates a new instance of JcaSystem
*
* @param contextName one of "com.cosylab.epics.caj.CAJContext",
* "gov.aps.jca.jni.ThreadSafeContext" or "gov.aps.jca.jni.SingleThreadedContext"
*/
public JcaSystem(final String contextName) {
try {
JCA_LIBRARY = JCALibrary.getInstance();
final String contextType = (contextName != null) ? contextName : defaultJCAContextType();
JCA_CONTEXT = JCA_LIBRARY.createContext(contextType);
} catch (CAException exception) {
exception.printStackTrace();
}
}
/**
* Initialize JCA context.
*
* @throws CAException throws on any failure.
*/
private void initialize() throws CAException {
// Get the JCALibrary instance.
JCALibrary jca = JCALibrary.getInstance();
// Create a context with default configuration values.
context = jca.createContext(JCALibrary.JNI_THREAD_SAFE);
// Display basic information about the context.
System.out.println(context.getVersion().getVersionString());
context.printInfo();
System.out.println();
}
static {
EpicsPlugin plugin = EpicsPlugin.getDefault();
boolean use_pure_java = plugin.usePureJava();
paramClassName = use_pure_java ? JCALibrary.CHANNEL_ACCESS_JAVA : JCALibrary.JNI_THREAD_SAFE;
paramMask = plugin.getMonitorMask().getMask();
dbePropertySupported = plugin.isDbePropertySupported();
honorZeroPrecision = plugin.isHonorZeroPrecision();
rtypValueOnly = plugin.isRtypValueOnly();
varArraySupported = plugin.getVarArraySupported();
log.config("Loading epics data source parameters: " + paramClassName + " - " + paramMask);
JCALibrary jca = JCALibrary.getInstance();
try {
context = jca.createContext(paramClassName);
} catch (CAException ex) {
log.log(Level.SEVERE, "Couldn't create JCA context", ex);
}
}