我正在构建C:\Users\$folder\AppData\Local\**Google**\...
以验证Elasticsearch中是否存在记录。
这是我的方法：
MultiGetRequest不幸的是，@Scheduled(cron = "${es.doSomething}")
public List<Record> doSomething() {
MultiGetRequest multiExistRequest = new MultiGetRequest();
someService.findAll().forEach(record -> {
String id = record.get("id").asText();
multiExistRequest.add(new MultiGetRequest.Item("_all", "type", id)
.fetchSourceContext(FetchSourceContext.FETCH_SOURCE)
.storedFields("_none_"));
});
BulkRequest bulkDeleteRequest = new BulkRequest();
final CountDownLatch existLatch = new CountDownLatch(multiExistRequest.getItems().size());
ActionListener<MultiGetResponse> existListener = new ActionListener<MultiGetResponse>() {
@Override
public void onResponse(MultiGetResponse responses) {
responses.forEach(response -> {
assert response.getFailure() == null;
GetResponse getResponse = response.getResponse();
if (getResponse.isExists()) {
bulkDeleteRequest.add(new DeleteRequest(response.getIndex(), response.getType(), response.getId()));
}
existLatch.countDown();
});
}
@Override
public void onFailure(Exception e) {
// TODO -- add retry logic
LOGGER.error(e.getMessage(), e);
existLatch.countDown();
}
};
client.multiGetAsync(multiExistRequest, existListener);
try {
existLatch.await();
} catch (InterruptedException e) {
LOGGER.error("Latch was interrupted", e);
}
// Do more stuff...
}
抛出了getResponse.isExists()，而底层的NullPointerException为空。为什么会这样呢？似乎请求成功，并返回200：
GetResult我正在使用Elasticsearch高级REST客户端6.3.2。