package com.alibaba.doris.common.router.virtual;
import com.alibaba.doris.common.route.VirtualRouter;
/**
* @author ajun Email:jack.yuj@alibaba-inc.com
*/
public class VirtualRouterImpl implements VirtualRouter {
private static VirtualRouterImpl instance = new VirtualRouterImpl();
private VirtualRouterImpl() {
}
public static VirtualRouter getInstance() {
return instance;
}
public int findVirtualNode(String key) {
int index = Math.abs(key.hashCode()) % virtualNode.length;
return virtualNode[index];
}
private int[] virtualNode = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
public int getVirtualNum() {
return virtualNode.length;
}
}