dasahcc commented on a change in pull request #367: Add transient cache for
CustomRestClient implementation
URL: https://github.com/apache/helix/pull/367#discussion_r309831540
##########
File path:
helix-rest/src/main/java/org/apache/helix/rest/client/CustomRestClientImpl.java
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@@ -52,16 +56,26 @@
private static final String ACCEPT_CONTENT_TYPE = "application/json";
private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
- private HttpClient _httpClient;
+ private final HttpClient _httpClient;
+ private final Semaphore _semaphore;
+ // a transient cache holds the HttpResponse of HttpPosts, only valid when
cache is enabled
+ private final Map<Integer, HttpResponse> _cachedResults = new HashMap<>();
private interface JsonConverter {
Map<String, Boolean> convert(JsonNode jsonNode);
}
- public CustomRestClientImpl(HttpClient httpClient) {
+ CustomRestClientImpl(HttpClient httpClient) {
_httpClient = httpClient;
+ _semaphore = new Semaphore(10);
Review comment:
@i3wangyi It should be one, right?
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