如何在Openstack4j中列出10000多个swift对象？

Question

official tutorial code为：

List<? extends SwiftObject> objs = os.objectStorage().objects().list(containerName);

但这有明确的10000个文件的限制。有没有更常用的方法来列出更大的容器？

Answer 1

好的，我自己做的，根据测试结果似乎是正确的。适当的API按名称(文档中有记录)和帐户“名称标记”对结果进行排序，“名称标记”指示列表的起始点。

final List<String> result = new ArrayList<>();

final ObjectStorageObjectService oservice = os.objectStorage().objects();
final ObjectListOptions listOptions = ObjectListOptions.create().limit(LIST_PAGE_LIMIT);
List<? extends SwiftObject> objects;
do {
    // Get next list page.
    objects = oservice.list(CONTAINER_NAME, listOptions);

    // If we have some result setup next page.
    if (!objects.isEmpty()) {
        listOptions.marker(objects.get(objects.size() - 1).getName());
    }

    if (LOG.isDebugEnabled()) {
        LOG.debug("SWIFT OS: listed page of {} file(s).", objects.size());
    }

    // Add current results page to the end.
    for (final SwiftObject swiftObject : objects) {
        fileList.add(swiftObject.getName());
    }
    // Process will be repeated unless we have incomplete page.

} while (objects.size() >= LIST_PAGE_LIMIT);