content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * 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 me.ahoo.cosid.snowflake;
  
  import me.ahoo.cosid.CosId;
  
  /**
   * Millisecond SnowflakeId.
   *
   * @author ahoo wang
   **/
  public class MillisecondSnowflakeId extends AbstractSnowflakeId {
      
      public static final int DEFAULT_TIMESTAMP_BIT = 41;
      public static final int DEFAULT_MACHINE_BIT = 10;
      public static final int DEFAULT_SEQUENCE_BIT = 12;
      public static final long DEFAULT_SEQUENCE_RESET_THRESHOLD = ~(-1L << (DEFAULT_SEQUENCE_BIT - 1));
      
      
      public MillisecondSnowflakeId(int machineId) {
          this(CosId.COSID_EPOCH, DEFAULT_TIMESTAMP_BIT, DEFAULT_MACHINE_BIT, DEFAULT_SEQUENCE_BIT, machineId, DEFAULT_SEQUENCE_RESET_THRESHOLD);
      }
      
      public MillisecondSnowflakeId(int machineBit, int machineId) {
          super(CosId.COSID_EPOCH, DEFAULT_TIMESTAMP_BIT, machineBit, DEFAULT_SEQUENCE_BIT, machineId, DEFAULT_SEQUENCE_RESET_THRESHOLD);
      }
      
      public MillisecondSnowflakeId(long epoch, int timestampBit, int machineBit, int sequenceBit, int machineId) {
          super(epoch, timestampBit, machineBit, sequenceBit, machineId, SnowflakeId.defaultSequenceResetThreshold(sequenceBit));
      }
      
      public MillisecondSnowflakeId(long epoch, int timestampBit, int machineBit, int sequenceBit, int machineId, long sequenceResetThreshold) {
          super(epoch, timestampBit, machineBit, sequenceBit, machineId, sequenceResetThreshold);
      }
      
      @Override
      protected long getCurrentTime() {
          return System.currentTimeMillis();
      }
  }
  