/**
* Remove river
*
* @param river
*/
public void remove(T river) {
if (logger.isDebugEnabled()) logger.debug("remove({})", river);
// We stop the river if running
if (riverService.checkState(river)) {
riverService.stop(river);
}
// We remove the river in the database
client
.prepareDelete(
SMDSearchProperties.ES_META_INDEX, SMDSearchProperties.ES_META_RIVERS, river.getId())
.execute()
.actionGet();
if (logger.isDebugEnabled()) logger.debug("/remove({})", river);
}
/**
* Stop a river
*
* @param river
*/
public void stop(T river) {
if (logger.isDebugEnabled()) logger.debug("stop({})", river);
// We only add the river if the river is started
if (river == null || !river.isStart()) return;
riverService.stop(river);
if (logger.isDebugEnabled()) logger.debug("/stop({})", river);
}
/**
* Start a river
*
* @param river
*/
public void start(T river) {
if (logger.isDebugEnabled()) logger.debug("start({})", river);
// We only add the river if the river is started
if (river == null || !river.isStart()) return;
riverService.start(river, getHelper().toXContent(river));
if (logger.isDebugEnabled()) logger.debug("/start({})", river);
}
/**
* Get all active rivers
*
* @return
*/
public List<T> get() {
if (logger.isDebugEnabled()) logger.debug("get()");
List<T> rivers = new ArrayList<T>();
SearchRequestBuilder srb = new SearchRequestBuilder(client);
try {
srb.setIndices(SMDSearchProperties.ES_META_INDEX);
srb.setTypes(SMDSearchProperties.ES_META_RIVERS);
SearchResponse response = srb.execute().actionGet();
if (response.getHits().totalHits() > 0) {
for (int i = 0; i < response.getHits().hits().length; i++) {
T river = buildInstance();
SearchHit hit = response.getHits().hits()[i];
// We only manage rivers for type getHelper().type()
river = getHelper().toRiver(river, hit.sourceAsMap());
if (river.getType().equals(getHelper().type())) {
// For each river, we check if the river is started or not
river.setStart(riverService.checkState(river));
rivers.add(river);
}
}
}
} catch (IndexMissingException e) {
// That's a common use case. We started with an empty index
}
if (logger.isDebugEnabled()) logger.debug("/get()={}", rivers);
return rivers;
}
