com.adobe.target.edge.client.utils.AllocationUtils Maven / Gradle / Ivy
/*
* Copyright 2021 Adobe. All rights reserved.
* This file is licensed 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 REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package com.adobe.target.edge.client.utils;
public class AllocationUtils {
private static final int TOTAL_BUCKETS = 10_000;
private static final int MAX_PERCENTAGE = 100;
public static String getDeviceId(
String clientId, String activityId, String visitorId, String salt) {
return clientId + "." + activityId + "." + visitorId + "." + salt;
}
public static double calculateAllocation(
String clientId, String activityId, String visitorId, String salt) {
return calculateAllocation(getDeviceId(clientId, activityId, visitorId, salt));
}
public static double calculateAllocation(String deviceId) {
int hashValue = HashingUtils.hashUnencodedChars(deviceId);
int hashFixedBucket = Math.abs(hashValue) % TOTAL_BUCKETS;
float allocationValue = ((float) hashFixedBucket / TOTAL_BUCKETS) * MAX_PERCENTAGE;
return (double) Math.round(allocationValue * 100) / 100; // two decimal places
}
}