ResourcePool.java 文件源码

/**
 * Allocates resource id.
 *
 * @return allocated resource id
 */
public Integer allocate() {
    for (Integer id : ContiguousSet.create(range, DiscreteDomain.integers())) {
        if (resources.add(id)) {
            return id;
        }
    }
    throw new ArrayIndexOutOfBoundsException("Could not allocate resource: pool is full");
}