com.hazelcast.internal.util.phonehome.MetricsProvider Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.internal.util.phonehome;
import com.hazelcast.instance.impl.Node;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;
/**
* Interface to be implemented by the classes that expose {@linkplain PhoneHomeMetrics
* phone home data}. The {@link #provideMetrics(Node, MetricsCollectionContext)}
* method is called in every metrics collection cycle.
*
* Registering instances of this interface can be done by providing the class name in
* {@code META-INF/services/com.hazelcast.internal.util.phonehome.MetricsProvider}.
*/
public interface MetricsProvider {
int TIMEOUT = 2000;
int RESPONSE_OK = HttpURLConnection.HTTP_OK;
int RESPONSE_UNAUTHORIZED = HttpURLConnection.HTTP_UNAUTHORIZED;
int A_INTERVAL = 5;
int B_INTERVAL = 10;
int C_INTERVAL = 20;
int D_INTERVAL = 40;
int E_INTERVAL = 60;
int F_INTERVAL = 100;
int G_INTERVAL = 150;
int H_INTERVAL = 300;
int J_INTERVAL = 600;
/**
* Metrics collection callback that is called in every metrics
* collection cycle. The collected metrics should be passed to the
* {@link MetricsCollectionContext#collect(Metric, Object)} method.
*
* @param node this node
* @param context the context used to collect the metrics
*/
void provideMetrics(Node node, MetricsCollectionContext context);
static String convertToLetter(int size) {
String letter;
if (size < A_INTERVAL) {
letter = "A";
} else if (size < B_INTERVAL) {
letter = "B";
} else if (size < C_INTERVAL) {
letter = "C";
} else if (size < D_INTERVAL) {
letter = "D";
} else if (size < E_INTERVAL) {
letter = "E";
} else if (size < F_INTERVAL) {
letter = "F";
} else if (size < G_INTERVAL) {
letter = "G";
} else if (size < H_INTERVAL) {
letter = "H";
} else if (size < J_INTERVAL) {
letter = "J";
} else {
letter = "I";
}
return letter;
}
static boolean fetchWebService(String urlStr, int responseCode) {
HttpURLConnection conn = null;
try {
URL url = URI.create(urlStr).toURL();
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(TIMEOUT);
conn.setReadTimeout(TIMEOUT);
conn.connect();
return conn.getResponseCode() == responseCode;
} catch (Exception ignored) {
return false;
} finally {
if (conn != null) {
conn.disconnect();
}
}
}
static boolean fetchWebService(String url) {
return fetchWebService(url, RESPONSE_OK);
}
}