/**
* Retrieves the View instance with the given id.
*
* <p>Invokes {@link UifDictionaryIndex#getImmutableViewById(java.lang.String)} to get the view
* singleton from spring then returns a copy.
*
* @param viewId the unique id for the view
* @return View instance with the given id
* @throws org.kuali.rice.krad.datadictionary.DataDictionaryException if view doesn't exist for id
*/
public View getViewById(final String viewId) {
// check for preloaded view
if (viewPools.containsKey(viewId)) {
final UifViewPool viewPool = viewPools.get(viewId);
synchronized (viewPool) {
if (!viewPool.isEmpty()) {
View view = viewPool.getViewInstance();
// replace view in the pool
Runnable createView =
new Runnable() {
public void run() {
View newViewInstance = CopyUtils.copy(getImmutableViewById(viewId));
viewPool.addViewInstance(newViewInstance);
}
};
Thread t = new Thread(createView);
t.start();
return view;
} else {
LOG.info(
"Pool size for view with id: "
+ viewId
+ " is empty. Considering increasing max pool size.");
}
}
}
View view = getImmutableViewById(viewId);
return CopyUtils.copy(view);
}
/**
* Initializes the view index {@code Map} then iterates through all the beans in the factory that
* implement {@code View}, adding them to the index
*/
protected void buildViewIndicies() {
LOG.info("Starting View Index Building");
viewBeanEntriesById = new HashMap<String, String>();
viewEntriesByType = new HashMap<String, ViewTypeDictionaryIndex>();
viewPools = new HashMap<String, UifViewPool>();
boolean inDevMode =
Boolean.parseBoolean(
ConfigContext.getCurrentContextConfig()
.getProperty(KRADConstants.ConfigParameters.KRAD_DEV_MODE));
ExecutorService executor = Executors.newFixedThreadPool(threadPoolSize);
String[] beanNames = ddBeans.getBeanNamesForType(View.class);
for (final String beanName : beanNames) {
BeanDefinition beanDefinition = ddBeans.getMergedBeanDefinition(beanName);
PropertyValues propertyValues = beanDefinition.getPropertyValues();
String id = ViewModelUtils.getStringValFromPVs(propertyValues, "id");
if (StringUtils.isBlank(id)) {
id = beanName;
}
if (viewBeanEntriesById.containsKey(id)) {
throw new DataDictionaryException(
"Two views must not share the same id. Found duplicate id: " + id);
}
viewBeanEntriesById.put(id, beanName);
indexViewForType(propertyValues, id);
// pre-load views if necessary
if (!inDevMode) {
String poolSizeStr = ViewModelUtils.getStringValFromPVs(propertyValues, "preloadPoolSize");
if (StringUtils.isNotBlank(poolSizeStr)) {
int poolSize = Integer.parseInt(poolSizeStr);
if (poolSize < 1) {
continue;
}
final View view = (View) ddBeans.getBean(beanName);
final UifViewPool viewPool = new UifViewPool();
viewPool.setMaxSize(poolSize);
for (int j = 0; j < poolSize; j++) {
Runnable createView =
new Runnable() {
@Override
public void run() {
viewPool.addViewInstance((View) CopyUtils.copy(view));
}
};
executor.execute(createView);
}
viewPools.put(id, viewPool);
}
}
}
executor.shutdown();
LOG.info("Completed View Index Building");
}
