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Python/source/options.py
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40
Python/source/options.py
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"""
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生成器IdGenerator配置选项
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"""
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class IdGeneratorOptions:
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"""
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ID生成器配置
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- worker_id 全局唯一id, 区分不同uuid生成器实例
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- worker_id_bit_length 生成的uuid中worker_id占用的位数
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- seq_bit_length 生成的uuid中序列号占用的位数
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"""
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def __init__(self, worker_id=0, worker_id_bit_length=6, seq_bit_length=6):
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# 雪花计算方法,(1-漂移算法|2-传统算法), 默认1。目前只实现了1。
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self.method = 1
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# 基础时间(ms单位), 不能超过当前系统时间
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self.base_time = 1288834974657
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# 机器码, 必须由外部设定, 最大值 2^worker_id_bit_length-1
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self.worker_id = worker_id
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# 机器码位长, 默认值6, 取值范围 [1, 15](要求:序列数位长+机器码位长不超过22)
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self.worker_id_bit_length = worker_id_bit_length
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# 序列数位长, 默认值6, 取值范围 [3, 21](要求:序列数位长+机器码位长不超过22)
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self.seq_bit_length = seq_bit_length
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# 最大序列数(含), 设置范围 [max_seq_number, 2^seq_bit_length-1]
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# 默认值0, 表示最大序列数取最大值(2^seq_bit_length-1])
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self.max_seq_number = 0
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# 最小序列数(含), 默认值5, 取值范围 [5, max_seq_number], 每毫秒的前5个序列数对应编号0-4是保留位
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# 其中1-4是时间回拨相应预留位, 0是手工新值预留位
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self.min_seq_number = 5
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# 最大漂移次数(含), 默认2000, 推荐范围500-10000(与计算能力有关)
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self.top_over_cost_count = 2000
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