List of usage examples for org.apache.zookeeper StatsTrack setCount
public void setCount(int count)
From source file:com.github.mosuka.zookeeper.nicli.command.DelQuotaCommand.java
License:Apache License
@Override public void run(Map<String, Object> parameters) { try {//from w ww. j a va 2 s . c o m String path = (String) parameters.get("path"); boolean bytes = parameters.containsKey("bytes") ? (Boolean) parameters.get("bytes") : DEFAULT_BYTES; boolean numNodes = parameters.containsKey("num_nodes") ? (Boolean) parameters.get("num_nodes") : DEFAULT_NUM_NODES; ZooKeeper zk = getZookeeperConnection().getZooKeeper(); String parentPath = Quotas.quotaZookeeper + path; String quotaPath = Quotas.quotaZookeeper + path + "/" + Quotas.limitNode; if (zk.exists(quotaPath, false) == null) { setStatus(Command.STATUS_ERROR); setMessage("quota for " + path + " does not exist."); return; } byte[] data = zk.getData(quotaPath, false, new Stat()); StatsTrack strack = new StatsTrack(new String(data)); if (bytes && !numNodes) { strack.setBytes(-1L); zk.setData(quotaPath, strack.toString().getBytes(), -1); } else if (!bytes && numNodes) { strack.setCount(-1); zk.setData(quotaPath, strack.toString().getBytes(), -1); } else if (bytes && numNodes) { List<String> children = zk.getChildren(parentPath, false); for (String child : children) { zk.delete(parentPath + "/" + child, -1); } QuotaUtil.trimProcQuotas(zk, parentPath); } else { setStatus(Command.STATUS_ERROR); setMessage("too few arguments"); return; } setStatus(Command.STATUS_SUCCESS); setMessage(Command.SUCCESS_MESSAGE); } catch (KeeperException e) { setStatus(Command.STATUS_ERROR); setMessage(e.getMessage()); } catch (InterruptedException e) { setStatus(Command.STATUS_ERROR); setMessage(e.getMessage()); } catch (IOException e) { setStatus(Command.STATUS_ERROR); setMessage(e.getMessage()); } catch (ClassCastException e) { setStatus(Command.STATUS_ERROR); setMessage(e.getMessage()); } catch (NullPointerException e) { setStatus(Command.STATUS_ERROR); setMessage(e.getMessage()); } }
From source file:com.github.mosuka.zookeeper.nicli.util.QuotaUtil.java
License:Apache License
public static boolean createQuota(ZooKeeper zk, String path, long bytes, int numNodes) throws KeeperException, IOException, InterruptedException { // check if the path exists. We cannot create // quota for a path that already exists in zookeeper // for now./* w w w . ja va2 s .com*/ Stat initStat = zk.exists(path, false); if (initStat == null) { throw new IllegalArgumentException(path + " does not exist."); } // now check if their is already existing // parent or child that has quota String quotaPath = Quotas.quotaZookeeper; // check for more than 2 children -- // if zookeeper_stats and zookeeper_qutoas // are not the children then this path // is an ancestor of some path that // already has quota String realPath = Quotas.quotaZookeeper + path; try { List<String> children = zk.getChildren(realPath, false); for (String child : children) { if (!child.startsWith("zookeeper_")) { throw new IllegalArgumentException(path + " has child " + child + " which has a quota"); } } } catch (KeeperException.NoNodeException ne) { // this is fine } // check for any parent that has been quota checkIfParentQuota(zk, path); // this is valid node for quota // start creating all the parents if (zk.exists(quotaPath, false) == null) { try { zk.create(Quotas.procZookeeper, null, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); zk.create(Quotas.quotaZookeeper, null, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { // do nothing } } // now create the direct children // and the stat and quota nodes String[] splits = path.split("/"); StringBuilder sb = new StringBuilder(); sb.append(quotaPath); for (int i = 1; i < splits.length; i++) { sb.append("/" + splits[i]); quotaPath = sb.toString(); try { zk.create(quotaPath, null, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { // do nothing } } String statPath = quotaPath + "/" + Quotas.statNode; quotaPath = quotaPath + "/" + Quotas.limitNode; StatsTrack strack = new StatsTrack(null); strack.setBytes(bytes); strack.setCount(numNodes); try { zk.create(quotaPath, strack.toString().getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); StatsTrack stats = new StatsTrack(null); stats.setBytes(0L); stats.setCount(0); zk.create(statPath, stats.toString().getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { byte[] data = zk.getData(quotaPath, false, new Stat()); StatsTrack strackC = new StatsTrack(new String(data)); if (bytes != -1L) { strackC.setBytes(bytes); } if (numNodes != -1) { strackC.setCount(numNodes); } zk.setData(quotaPath, strackC.toString().getBytes(), -1); } return true; }
From source file:org.lab.mars.onem2m.ZooKeeperMain.java
License:Apache License
/** * this method deletes quota for a node. * /* www . j av a 2 s .co m*/ * @param zk * the zookeeper client * @param path * the path to delete quota for * @param bytes * true if number of bytes needs to be unset * @param numNodes * true if number of nodes needs to be unset * @return true if quota deletion is successful * @throws KeeperException * @throws IOException * @throws InterruptedException */ public static boolean delQuota(ZooKeeper zk, String path, boolean bytes, boolean numNodes) throws KeeperException, IOException, InterruptedException { String parentPath = Quotas.quotaZookeeper + path; String quotaPath = Quotas.quotaZookeeper + path + "/" + Quotas.limitNode; if (zk.exists(quotaPath, false) == null) { System.out.println("Quota does not exist for " + path); return true; } byte[] data = null; try { data = zk.getData(quotaPath, false, new Stat()); } catch (KeeperException.NoNodeException ne) { System.err.println("quota does not exist for " + path); return true; } StatsTrack strack = new StatsTrack(new String(data)); if (bytes && !numNodes) { strack.setBytes(-1L); zk.setData(quotaPath, strack.toString().getBytes(), -1); } else if (!bytes && numNodes) { strack.setCount(-1); zk.setData(quotaPath, strack.toString().getBytes(), -1); } else if (bytes && numNodes) { // delete till you can find a node with more than // one child List<String> children = zk.getChildren(parentPath, false); // / delete the direct children first for (String child : children) { zk.delete(parentPath + "/" + child, -1); } // cut the tree till their is more than one child trimProcQuotas(zk, parentPath); } return true; }
From source file:org.lab.mars.onem2m.ZooKeeperMain.java
License:Apache License
/** * this method creates a quota node for the path * /*from w w w . j a v a2 s .c o m*/ * @param zk * the ZooKeeper client * @param path * the path for which quota needs to be created * @param bytes * the limit of bytes on this path * @param numNodes * the limit of number of nodes on this path * @return true if its successful and false if not. */ public static boolean createQuota(ZooKeeper zk, String path, long bytes, int numNodes) throws KeeperException, IOException, InterruptedException { // check if the path exists. We cannot create // quota for a path that already exists in zookeeper // for now. Stat initStat = zk.exists(path, false); if (initStat == null) { throw new IllegalArgumentException(path + " does not exist."); } // now check if their is already existing // parent or child that has quota String quotaPath = Quotas.quotaZookeeper; // check for more than 2 children -- // if zookeeper_stats and zookeeper_qutoas // are not the children then this path // is an ancestor of some path that // already has quota String realPath = Quotas.quotaZookeeper + path; try { List<String> children = zk.getChildren(realPath, false); for (String child : children) { if (!child.startsWith("zookeeper_")) { throw new IllegalArgumentException(path + " has child " + child + " which has a quota"); } } } catch (KeeperException.NoNodeException ne) { // this is fine } // check for any parent that has been quota checkIfParentQuota(zk, path); // this is valid node for quota // start creating all the parents if (zk.exists(quotaPath, false) == null) { try { zk.create(Quotas.procZookeeper, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); zk.create(Quotas.quotaZookeeper, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { // do nothing } } // now create the direct children // and the stat and quota nodes String[] splits = path.split("/"); StringBuilder sb = new StringBuilder(); sb.append(quotaPath); for (int i = 1; i < splits.length; i++) { sb.append("/" + splits[i]); quotaPath = sb.toString(); try { zk.create(quotaPath, null, Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { // do nothing } } String statPath = quotaPath + "/" + Quotas.statNode; quotaPath = quotaPath + "/" + Quotas.limitNode; StatsTrack strack = new StatsTrack(null); strack.setBytes(bytes); strack.setCount(numNodes); try { zk.create(quotaPath, strack.toString().getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); StatsTrack stats = new StatsTrack(null); stats.setBytes(0L); stats.setCount(0); zk.create(statPath, stats.toString().getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); } catch (KeeperException.NodeExistsException ne) { byte[] data = zk.getData(quotaPath, false, new Stat()); StatsTrack strackC = new StatsTrack(new String(data)); if (bytes != -1L) { strackC.setBytes(bytes); } if (numNodes != -1) { strackC.setCount(numNodes); } zk.setData(quotaPath, strackC.toString().getBytes(), -1); } return true; }