org.pinus4j.generator

Class AbstractSequenceIdGenerator

java.lang.Object

org.pinus4j.generator.AbstractSequenceIdGenerator

All Implemented Interfaces:

IIdGenerator

Direct Known Subclasses:

DistributedSequenceIdGeneratorImpl

public abstract class AbstractSequenceIdGenerator
extends Object
implements IIdGenerator

抽象的ID生成器.

Author:

duanbn

Field Summary

Fields

Modifier and Type	Field and Description
private int	BUFFER_SIZE
static org.slf4j.Logger	LOG 日志.
private Map<String,Queue<Long>>	longIdBuffer 批量生成id缓冲
private org.apache.zookeeper.ZooKeeper	zk

Constructor Summary

Constructors

Constructor and Description
AbstractSequenceIdGenerator(org.apache.curator.framework.CuratorFramework curatorClient, int bufferSize)

Method Summary

Modifier and Type	Method and Description
private int[]	_genClusterUniqueIntIdBatch(String clusterName, String name, int batchSize, long seed) 生成n个int型的数值
private long[]	_genClusterUniqueLongIdBatch(String clusterName, String name, int batchSize, long seed) 生成n个long型的数值
private long	_genId(String clusterName, String name, long seed)
void	checkAndSetPrimaryKey(long pk, String clusterName, String name) 校验给定的主键值是否比当前zookeeper中的值大, 如果大则设置为给定的主键值.
int	genClusterUniqueIntId(String clusterName, String name) 生成全局唯一的int id.
int	genClusterUniqueIntId(String clusterName, String name, long seed)
int[]	genClusterUniqueIntIdBatch(String clusterName, String name, int batchSize) 批量生成全局唯一主键.
int[]	genClusterUniqueIntIdBatch(String clusterName, String name, int batchSize, long seed)
long	genClusterUniqueLongId(String clusterName, String name) 生成全局唯一的long id.
long	genClusterUniqueLongId(String clusterName, String name, long seed)
long[]	genClusterUniqueLongIdBatch(String clusterName, String name, int batchSize) 批量生成全局唯一主键.
long[]	genClusterUniqueLongIdBatch(String clusterName, String name, int batchSize, long seed)
private String	getBufferKey(String clusterName, String name)
abstract Lock	getLock(String lockName) 获取集群锁

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOG

public static final org.slf4j.Logger LOG

日志.

longIdBuffer

private final Map<String,Queue<Long>> longIdBuffer

批量生成id缓冲

BUFFER_SIZE

private int BUFFER_SIZE

zk

private org.apache.zookeeper.ZooKeeper zk

Constructor Detail

AbstractSequenceIdGenerator

public AbstractSequenceIdGenerator(org.apache.curator.framework.CuratorFramework curatorClient,
                                   int bufferSize)

Method Detail

getBufferKey

private String getBufferKey(String clusterName,
                            String name)

checkAndSetPrimaryKey

public void checkAndSetPrimaryKey(long pk,
                                  String clusterName,
                                  String name)

Description copied from interface: IIdGenerator

校验给定的主键值是否比当前zookeeper中的值大, 如果大则设置为给定的主键值.

Specified by:

checkAndSetPrimaryKey in interface IIdGenerator

Parameters:

pk - 被校验的主键值

clusterName - 集群名

name - 保存主键值的node名称

genClusterUniqueIntId

public int genClusterUniqueIntId(String clusterName,
                                 String name)

Description copied from interface: IIdGenerator

生成全局唯一的int id. 对一个数据对象的集群全局唯一id.

Specified by:

genClusterUniqueIntId in interface IIdGenerator

Parameters:

clusterName - zookeeper目录

name - id生成的名字

Returns:

单个数据对象的集群全局唯一id

genClusterUniqueIntId

public int genClusterUniqueIntId(String clusterName,
                                 String name,
                                 long seed)

Specified by:

genClusterUniqueIntId in interface IIdGenerator

genClusterUniqueLongId

public long genClusterUniqueLongId(String clusterName,
                                   String name)

Description copied from interface: IIdGenerator

生成全局唯一的long id. 对一个数据对象的集群全局唯一id.

Specified by:

genClusterUniqueLongId in interface IIdGenerator

Parameters:

clusterName - zookeeper目录

name - id生成的名字

Returns:

单个数据对象的集群全局唯一id

genClusterUniqueLongId

public long genClusterUniqueLongId(String clusterName,
                                   String name,
                                   long seed)

Specified by:

genClusterUniqueLongId in interface IIdGenerator

_genId

private long _genId(String clusterName,
                    String name,
                    long seed)

genClusterUniqueIntIdBatch

public int[] genClusterUniqueIntIdBatch(String clusterName,
                                        String name,
                                        int batchSize)

Description copied from interface: IIdGenerator

批量生成全局唯一主键.

Specified by:

genClusterUniqueIntIdBatch in interface IIdGenerator

Parameters:

clusterName - zookeeper目录

name - id生成的名字

batchSize - 批量数

genClusterUniqueIntIdBatch

public int[] genClusterUniqueIntIdBatch(String clusterName,
                                        String name,
                                        int batchSize,
                                        long seed)

Specified by:

genClusterUniqueIntIdBatch in interface IIdGenerator

genClusterUniqueLongIdBatch

public long[] genClusterUniqueLongIdBatch(String clusterName,
                                          String name,
                                          int batchSize)

Description copied from interface: IIdGenerator

批量生成全局唯一主键.

Specified by:

genClusterUniqueLongIdBatch in interface IIdGenerator

Parameters:

clusterName - zookeeper目录

name - id生成的名字

batchSize - 批量数

genClusterUniqueLongIdBatch

public long[] genClusterUniqueLongIdBatch(String clusterName,
                                          String name,
                                          int batchSize,
                                          long seed)

Specified by:

genClusterUniqueLongIdBatch in interface IIdGenerator

_genClusterUniqueIntIdBatch

private int[] _genClusterUniqueIntIdBatch(String clusterName,
                                          String name,
                                          int batchSize,
                                          long seed)

生成n个int型的数值

Parameters:

clusterName -

name -

batchSize -

seed - 当seed大于当前值则使用seed作为起点

Returns:

_genClusterUniqueLongIdBatch

private long[] _genClusterUniqueLongIdBatch(String clusterName,
                                            String name,
                                            int batchSize,
                                            long seed)

生成n个long型的数值

Parameters:

clusterName -

name -

batchSize -

seed - 当seed大于当前值则使用seed作为起点

Returns:

getLock

public abstract Lock getLock(String lockName)

获取集群锁

Returns: