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Java Ignite.reentrantLock方法代码示例

本文整理汇总了Java中org.apache.ignite.Ignite.reentrantLock方法的典型用法代码示例。如果您正苦于以下问题:Java Ignite.reentrantLock方法的具体用法?Java Ignite.reentrantLock怎么用?Java Ignite.reentrantLock使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.apache.ignite.Ignite的用法示例。


在下文中一共展示了Ignite.reentrantLock方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: prepopulateSimulationCaches

import org.apache.ignite.Ignite; //导入方法依赖的package包/类
/**
 * Populates simulation caches with with a preconfigured number of accounts, each having some amount money to run
 * transfer transactions.
 */
public static void prepopulateSimulationCaches(Ignite ignite) {
    IgniteLock lock = null;

    try {
        IgniteAtomicReference<SimulationCachesState> state = ignite.atomicReference(
            SIMULATION_CACHES_STATE, SimulationCachesState.UNPOPULATED, true);

        if (!(state.get() == SimulationCachesState.POPULATED)) {
            lock = ignite.reentrantLock(PREPOPULATED_LOCK, true, false, true);

            IgniteCondition condition = lock.getOrCreateCondition(PREPOPULATED_CONDITION);
            boolean shouldPopulate = false;

            lock.lock();
            try {
                if (state.compareAndSet(SimulationCachesState.UNPOPULATED, SimulationCachesState.POPULATING)) {
                    shouldPopulate = true;
                }
                else if (state.get() == SimulationCachesState.POPULATING) {
                    condition.await();
                }
            }
            finally {
                lock.unlock();
            }

            if (!shouldPopulate) {
                return;
            }
            Map<AccountKey, Account> accounts = new HashMap<>();
            Map<AccountTransactionKey, AccountTransaction> accountTxs = new HashMap<>();

            preparePopulateBatch(0, TOTAL_ACCOUNTS, 0, accounts, accountTxs);
            ignite.atomicLong(CURRENT_TX_BUCKET_INDEX, 0, true);
            writeBatchSafe(ignite, ACCOUNT_CACHE, accounts);
            writeBatchSafe(ignite, ACCOUNT_CACHE, accountTxs);

            lock.lock();
            try {
                state.set(SimulationCachesState.POPULATED);
                condition.signalAll();
            }
            finally {
                lock.unlock();
            }
        }
    }
    finally {
        if (lock != null && lock.isHeldByCurrentThread()) {
            lock.unlock();
        }
    }
}
 
开发者ID:epam,项目名称:Lagerta,代码行数:58,代码来源:SimulationUtil.java


注:本文中的org.apache.ignite.Ignite.reentrantLock方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。