@Result(success = "/WEB-INF/pages/group/filter.jsp")
@Override
public String filter(HttpServletRequest req, HttpServletResponse resp) {
StringBuilder filter = new StringBuilder();
String groupname = param(req, "groupname", "");
// 默认排序
String by = param(req, "by", "groupname");
String order = param(req, "order", "desc");
Group model = new Group();
model.setGroupname(groupname);
if (StringUtils.isNotBlank(groupname)) {
filter.append(" where ");
filter.append(" groupname like '%" + groupname + "%'");
}
filter.append(" order by ");
filter.append(by);
filter.append(" ");
filter.append(order);
// 前台分页
int p = Configuration.DEFAULT_CURRENT_PAGE;
int countPerPage = Configuration.DEFAULT_COUNT_PER_PAGE;
try {
p = param(req, "page", Configuration.DEFAULT_CURRENT_PAGE);
if (p < 1) p = Configuration.DEFAULT_CURRENT_PAGE;
} catch (NumberFormatException e) {
p = Configuration.DEFAULT_CURRENT_PAGE;
}
try {
countPerPage = param(req, "countPerPage", Configuration.DEFAULT_COUNT_PER_PAGE);
} catch (NumberFormatException e) {
countPerPage = Configuration.DEFAULT_COUNT_PER_PAGE;
}
int currentPage = p;
int totalCount = model.totalCount(filter.toString());
Pager pager = new Pager(currentPage, countPerPage, totalCount);
// 针对可能的原访问页数大于实际总页数，此处重置下
if (currentPage > pager.getTotalPage()) currentPage = p = pager.getTotalPage();
// 读取部分数据
@SuppressWarnings("unchecked")
List<Group> list =
(List<Group>) model.filterByPage(filter.toString(), p, pager.getCountPerPage());
setAttr(req, CURRENT_PAGE_KEY, currentPage);
setAttr(req, CURRENT_COUNT_PER_PAGE_KEY, countPerPage);
setAttr(req, PAGER_KEY, pager);
setAttr(req, MAX_PAGERSHOW_LENGTH_KEY, DEFAULT_MAX_PAGERSHOW_LENGTH);
setAttr(req, DATA_LIST, list);
// 查询值
setAttr(req, GROUPNAME, groupname);
setAttr(req, BY, by);
setAttr(req, ORDER, order);
// 批量删除传来的消息
String tip = (String) getAttr(req, TIP_NAME_KEY);
setAttr(req, TIP_NAME_KEY, tip);
setAttr(req, MODEL, model);
return SUCCESS;
}
@SuppressWarnings("unchecked")
@Result(success = "/WEB-INF/pages/group/filter.jsp", fail = "/WEB-INF/pages/group/filter.jsp")
public String batchDelete(HttpServletRequest req, HttpServletResponse resp) {
String[] deleteId = params(req, "deleteId");
System.out.println("deleteId's length:" + deleteId.length);
if (deleteId.length == 0) {
setAttr(req, TIP_NAME_KEY, "请选择要删除的分组");
this.filter(req, resp);
return FAIL;
}
// Hi~选择删除对象后才会到达此处
// 业务
Group model = new Group();
// 删除分组服务节点
List<Long> ids = new ArrayList<Long>();
for (String s : deleteId) {
ids.add(new Long(s));
}
List<Group> groupList = (List<Group>) model.batchGet(ids);
ZooKeeper zk = (ZooKeeper) context.getAttribute(ZOOKEEPER_KEY);
for (Group group : groupList) {
Stat groupExist;
try {
String groupNode = "/" + group.getGroupname();
groupExist = zk.exists(groupNode, new AutoDataWatcher(zk));
if (groupExist != null) {
log.debug("删除分组节点:" + groupNode);
zk.delete(groupNode, -1);
}
} catch (KeeperException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// 删除数据库分组
int[] results = model.batchDelete(deleteId);
log.debug("batchDelete results[0]: " + results[0]);
if (results.length > 0 && results[0] > 0) {
setAttr(req, TIP_NAME_KEY, "成功删除" + results[0] + "个分组名");
}
this.filter(req, resp);
return SUCCESS;
}
@Result(success = "/WEB-INF/pages/group/viewAdd.jsp", fail = "/WEB-INF/pages/group/viewAdd.jsp")
@Override
public String add(HttpServletRequest req, HttpServletResponse resp) {
String groupname = param(req, "groupname");
groupname = groupname.toUpperCase();
Group model = new Group();
model.setGroupname(groupname);
setAttr(req, MODEL, model);
if (StringUtils.isBlank(groupname)) {
setAttr(req, TIP_NAME_KEY, "请输入分组名");
return FAIL;
}
// 屏蔽原始节点名[zookeeper][serverCluster]
if (StringUtils.equals(groupname, ZOOKEEPER_KEY.toUpperCase())
|| StringUtils.equals(groupname, SERVER_CLUSTER_KEY.toUpperCase())) {
setAttr(req, TIP_NAME_KEY, "对不起，不能创建内置分组名");
model.setGroupname("");
return FAIL;
}
// 业务
if (model.isExist(groupname)) {
setAttr(req, TIP_NAME_KEY, "对不起，分组名[" + groupname + "]已被使用,请换个分组名后重试!");
model.setGroupname("");
return FAIL;
}
// 添加组服务zookeeper节点
ZooKeeper zk = (ZooKeeper) context.getAttribute(ZOOKEEPER_KEY);
Stat groupExist;
try {
String groupNode = "/" + groupname;
groupExist = zk.exists(groupNode, new AutoDataWatcher(zk));
if (groupExist == null) {
log.debug("创建分组节点:" + groupNode);
zk.create(groupNode, new byte[] {}, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
} else {
log.debug("已存在分组节点" + groupNode + ",不能创建...");
}
} catch (KeeperException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
// 保存到数据库
if (model.save() > 0) {
setAttr(req, TIP_NAME_KEY, "恭喜您，成功添加新分组: [" + groupname + "]");
model.setGroupname("");
return SUCCESS;
} else {
setAttr(req, TIP_NAME_KEY, "系统故障，请稍候重试");
return FAIL;
}
}