Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/3736#discussion_r112304098
--- Diff:
flink-metrics/flink-metrics-datadog/src/main/java/org/apache/flink/metrics/datadog/DatadogHttpClient.java
---
@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.metrics.datadog;
+
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import okhttp3.RequestBody;
+
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Http client talking to Datadog
+ * */
+public class DatadogHttpClient{
+ private static final String SERIES_URL_FORMAT =
"https://app.datadoghq.com/api/v1/series?api_key=%s";;
+ private static final String VALIDATE_URL_FORMAT =
"https://app.datadoghq.com/api/v1/validate?api_key=%s";;
+ private static final MediaType MEDIA_TYPE =
MediaType.parse("application/json; charset=utf-8");
+ private static final int TIMEOUT = 5;
+
+ private final String seriesUrl;
+ private final String validateUrl;
+ private final OkHttpClient client;
+ private final String apiKey;
+
+ public DatadogHttpClient(String dgApiKey) {
+ if(dgApiKey == null || dgApiKey.isEmpty()) {
+ throw new IllegalArgumentException(
+ "Invalid API key:" + dgApiKey);
+ }
+ apiKey = dgApiKey;
+ client = new OkHttpClient.Builder()
+ .connectTimeout(TIMEOUT, TimeUnit.SECONDS)
+ .writeTimeout(TIMEOUT, TimeUnit.SECONDS)
+ .readTimeout(TIMEOUT, TimeUnit.SECONDS)
+ .build();
+
+ seriesUrl = String.format(SERIES_URL_FORMAT, apiKey);
+ validateUrl = String.format(VALIDATE_URL_FORMAT, apiKey);
+ validateApiKey();
+ }
+
+ private void validateApiKey() {
+ Request r = new
Request.Builder().url(validateUrl).get().build();
+
+ try {
+ Response response = client.newCall(r).execute();
+ if(!response.isSuccessful()) {
--- End diff --
The response can fail for reasons other than the key being invalid, no? If
so, the exception message should state "Failed to validate API key. <error
code>".
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