com.sun.faces.lifecycle.LifecycleImpl Maven / Gradle / Ivy
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package com.sun.faces.lifecycle;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseListener;
import javax.faces.lifecycle.Lifecycle;
import com.sun.faces.util.FacesLogger;
import com.sun.faces.util.MessageUtils;
/**
* LifecycleImpl is the stock implementation of the standard
* Lifecycle in the JavaServer Faces RI.
*/
public class LifecycleImpl extends Lifecycle {
// -------------------------------------------------------- Static Variables
// Log instance for this class
private static Logger LOGGER = FacesLogger.LIFECYCLE.getLogger();
// ------------------------------------------------------ Instance Variables
// The Phase instance for the render() method
private Phase response = new RenderResponsePhase();
// The set of Phase instances that are executed by the execute() method
// in order by the ordinal property of each phase
private Phase[] phases = {
null, // ANY_PHASE placeholder, not a real Phase
new RestoreViewPhase(),
new ApplyRequestValuesPhase(),
new ProcessValidationsPhase(),
new UpdateModelValuesPhase(),
new InvokeApplicationPhase(),
response
};
// List for registered PhaseListeners
private List listeners =
new CopyOnWriteArrayList();
// ------------------------------------------------------- Lifecycle Methods
// Execute the phases up to but not including Render Response
public void execute(FacesContext context) throws FacesException {
if (context == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context"));
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("execute(" + context + ")");
}
for (int i = 1, len = phases.length -1 ; i < len; i++) { // Skip ANY_PHASE placeholder
if (context.getRenderResponse() ||
context.getResponseComplete()) {
break;
}
phases[i].doPhase(context, this, listeners.listIterator());
}
}
// Execute the Render Response phase
public void render(FacesContext context) throws FacesException {
if (context == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context"));
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("render(" + context + ")");
}
if (!context.getResponseComplete()) {
response.doPhase(context, this, listeners.listIterator());
}
}
// Add a new PhaseListener to the set of registered listeners
public void addPhaseListener(PhaseListener listener) {
if (listener == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "listener"));
}
if (listeners == null) {
listeners = new CopyOnWriteArrayList();
}
if (listeners.contains(listener)) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
"jsf.lifecycle.duplicate_phase_listener_detected",
listener.getClass().getName());
}
} else {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
"addPhaseListener({0},{1})",
new Object[]{
listener.getPhaseId().toString(),
listener.getClass().getName()});
}
listeners.add(listener);
}
}
// Return the set of PhaseListeners that have been registered
public PhaseListener[] getPhaseListeners() {
return listeners.toArray(new PhaseListener[listeners.size()]);
}
// Remove a registered PhaseListener from the set of registered listeners
public void removePhaseListener(PhaseListener listener) {
if (listener == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "listener"));
}
if (listeners.remove(listener) && LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
"removePhaseListener({0})",
new Object[]{listener.getClass().getName()});
}
}
}