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APIClient: Support for non pull APIMeter

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APIMeter will be modified not to use pulling and to retrieve the derived
information from the API.

To support that the APIClient was changed so it would be able to cache
json objects and histogram.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
This commit is contained in:
Amnon Heiman 2016-05-17 09:35:42 +03:00
parent a028e59699
commit adf466519f
1 changed files with 28 additions and 5 deletions
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33
src/main/java/com/scylladb/jmx/api/APIClient.java
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@ -64,6 +64,14 @@ public class APIClient {
return (value!= null && value.valid(duration))? value.stringValue() : null; return (value!= null && value.valid(duration))? value.stringValue() : null;
} }
JsonObject getJsonObjectFromCache(String key, long duration) {
if (key == null) {
return null;
}
CacheEntry value = cache.get(key);
return (value!= null && value.valid(duration))? value.jsonObject() : null;
}
EstimatedHistogram getEstimatedHistogramFromCache(String key, long duration) { EstimatedHistogram getEstimatedHistogramFromCache(String key, long duration) {
if (key == null) { if (key == null) {
return null; return null;
@ -654,20 +662,30 @@ public class APIClient {
} }
public JsonObject getJsonObj(String string, public JsonObject getJsonObj(String string,
MultivaluedMap<String, String> queryParams) { MultivaluedMap<String, String> queryParams, long duration) {
if (string.equals("")) { if (string.equals("")) {
return null; return null;
} }
String key = getCacheKey(string, queryParams, duration);
JsonObject res = getJsonObjectFromCache(key, duration);
if (res != null) {
return res;
}
JsonReader reader = getReader(string, queryParams); JsonReader reader = getReader(string, queryParams);
JsonObject res = reader.readObject(); res = reader.readObject();
reader.close(); reader.close();
if (duration > 0) {
cache.put(key, new CacheEntry(res));
}
return res; return res;
} }
public JsonObject getJsonObj(String string,
public HistogramValues getHistogramValue(String url,
MultivaluedMap<String, String> queryParams) { MultivaluedMap<String, String> queryParams) {
return getJsonObj(string, queryParams, 0);
}
public static HistogramValues json2histogram(JsonObject obj) {
HistogramValues res = new HistogramValues(); HistogramValues res = new HistogramValues();
JsonObject obj = getJsonObj(url, queryParams);
res.count = obj.getJsonNumber("count").longValue(); res.count = obj.getJsonNumber("count").longValue();
res.max = obj.getJsonNumber("max").longValue(); res.max = obj.getJsonNumber("max").longValue();
res.min = obj.getJsonNumber("min").longValue(); res.min = obj.getJsonNumber("min").longValue();
@ -684,6 +702,11 @@ public class APIClient {
return res; return res;
} }
public HistogramValues getHistogramValue(String url,
MultivaluedMap<String, String> queryParams) {
return json2histogram(getJsonObj(url, queryParams));
}
public HistogramValues getHistogramValue(String url) { public HistogramValues getHistogramValue(String url) {
return getHistogramValue(url, null); return getHistogramValue(url, null);
} }