/**
* 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);
}
}
public LatestMonitorOnlyQueuedEventDispatcher() {
_dispatcherThread = new Thread(this, "LatestMonitorOnlyQueuedEventDispatcher-" + (_count++));
_dispatcherThread.setDaemon(true);
setPriority(
JCALibrary.getInstance()
.getPropertyAsInt(
LatestMonitorOnlyQueuedEventDispatcher.class.getName() + ".priority", _priority));
_queue = new ArrayList();
_queueLimit =
JCALibrary.getInstance()
.getPropertyAsInt(
LatestMonitorOnlyQueuedEventDispatcher.class.getName() + ".queue_limit",
_queueLimit);
if (_queueLimit < 10) _queueLimit = 10;
_sourcesEventCount = new HashMap();
_limit =
JCALibrary.getInstance()
.getPropertyAsInt(
LatestMonitorOnlyQueuedEventDispatcher.class.getName() + ".channel_queue_limit",
_limit);
if (_limit < 3) _limit = 3;
_overrideMap = new HashMap();
_monitorOutput =
JCALibrary.getInstance()
.getProperty(
LatestMonitorOnlyQueuedEventDispatcher.class.getName() + ".monitor_output",
_monitorOutput);
if (_monitorOutput != null) {
_monitorThread =
new Thread(
new Runnable() {
public void run() {
runMonitoring();
}
},
_dispatcherThread.getName() + " monitor");
_monitorThread.start();
}
_dispatcherThread.start();
}
