// 删除节点
public void delete(HttpServletRequest request, HttpServletResponse response) {
String falg = "success";
String current_delete_data = "";
// 当前删除的节点名称
String delete_current_path = request.getParameter("delete_current_path");
try {
// current_delete_data = new String(zk.getData(delete_current_path,
// false, null));
// zk.delete(delete_current_path, -1);
current_delete_data = new String(zkClient.readData(delete_current_path, null));
zkClient.deleteRecursive(delete_current_path);
} catch (Exception e) {
falg = "fail";
LogUtils.logError(
"删除节点 : [ " + delete_current_path + " ] 对应数据 ： " + current_delete_data + "失败 ！", e);
}
ResponseUtils.responseOutWithJson(response, falg);
}
// 添加节点
public void insert(HttpServletRequest request, HttpServletResponse response) {
String current_path = "";
String falg = "success";
// 当前添加节点所有上级目录
String insert_old_current_path = request.getParameter("insert_old_current_path");
// 当前添加节点名称
String insert_current_path = request.getParameter("insert_current_path");
current_path = insert_old_current_path + "/" + insert_current_path;
// 当前添加节点的数据
String insert_current_path_data = request.getParameter("insert_current_path_data");
LogUtils.logInfo("当前 添加 节点 ：[ " + current_path + " ] 的数据为 ：" + insert_current_path_data);
if (!zkClient.exists(current_path)) {
zkClient.createPersistent(current_path, ZkClient.toBytes(insert_current_path_data));
}
ResponseUtils.responseOutWithJson(response, falg);
}
// 更新节点数据
@SuppressWarnings("static-access")
public void update(HttpServletRequest request, HttpServletResponse response) {
final AtomicInteger count = new AtomicInteger(0);
final ArrayList<String> children = new ArrayList<String>();
String falg = "success";
// 当前修改节点名称
String update_current_path = request.getParameter("update_current_path");
// 当前节点之前的数据
String update_old_path_data = request.getParameter("update_old_path_data");
// 当前修改数据
String update_path_data = request.getParameter("update_path_data");
// 如果相等于 代表没有修改数据
if (update_old_path_data.equals(update_path_data)) {
ResponseUtils.responseOutWithJson(response, "no_update");
return;
} else {
try {
IZkChildListener listener =
new IZkChildListener() {
@Override
public void handleChildChange(String parentPath, List<String> currentChildren)
throws Exception {
count.incrementAndGet();
children.clear();
if (currentChildren != null) {
children.addAll(currentChildren);
}
LogUtils.logInfo("handle childchange " + parentPath + ", " + currentChildren);
}
};
zkClient.subscribeChildChanges(update_current_path, listener);
zkClient.writeData(update_current_path, zkClient.toBytes(update_path_data));
} catch (Exception e) {
falg = "fail";
LogUtils.logError(
"修改节点 : [ " + update_current_path + " ] 对应数据 ： " + update_path_data + "失败 ！", e);
}
}
ResponseUtils.responseOutWithJson(response, falg);
}