| <?php |
| /** |
| * 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. |
| */ |
| namespace com\fenqile\fsof\common\config; |
| |
| class FSOFCommonUtil |
| { |
| public static function parseWeightInfo($versionWeightList) |
| { |
| $versionLists = array(); |
| $versionWeight = explode(",", $versionWeightList); |
| foreach ($versionWeight as $index => $value) |
| { |
| $versionWeight = explode(":" ,$value); |
| if (count($versionWeight) == 1) |
| { |
| $versionLists[$value] = 0; |
| } |
| else |
| { |
| $versionLists[$versionWeight[0]] = $versionWeight[1]; |
| } |
| } |
| return $versionLists; |
| } |
| |
| public static function getWeightSum($versionLists) |
| { |
| $weightSum = 0; |
| foreach ($versionLists as $key => $value) |
| { |
| $weightSum += $value; |
| } |
| return $weightSum; |
| } |
| |
| public static function getVersionByWeight($versionWeightList) |
| { |
| $version = $versionWeightList; |
| $versionLists = self::parseWeightInfo($versionWeightList); |
| $weightSum = self::getWeightSum($versionLists); |
| if ($weightSum > 1) |
| { |
| $startValue = 0; |
| $dstValue = mt_rand(0, $weightSum-1); |
| foreach ($versionLists as $key => $value) |
| { |
| if($dstValue >= $startValue && $dstValue < $value + $startValue) |
| { |
| $version = $key; |
| break; |
| } |
| else |
| { |
| $startValue += $value; |
| } |
| } |
| } |
| return $version; |
| } |
| } |