Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.github.mosuka.zookeeper.nicli.command; import java.io.IOException; import java.util.Map; import org.apache.zookeeper.KeeperException; import org.apache.zookeeper.ZooKeeper; import com.github.mosuka.zookeeper.nicli.util.QuotaUtil; public class SetQuotaCommand extends Command { public static final long DEFAULT_BYTES = -1L; public static final int DEFAULT_NUM_NODES = -1; public SetQuotaCommand() { this("setquota"); } public SetQuotaCommand(String name) { super(name); } @Override public void run(Map<String, Object> parameters) { try { String path = (String) parameters.get("path"); long bytes = parameters.containsKey("bytes") ? (Long) parameters.get("bytes") : DEFAULT_BYTES; int numNodes = parameters.containsKey("num_nodes") ? (Integer) parameters.get("num_nodes") : DEFAULT_NUM_NODES; ZooKeeper zk = getZookeeperConnection().getZooKeeper(); if (parameters.containsKey("bytes")) { QuotaUtil.createQuota(zk, path, bytes, -1); } else if (parameters.containsKey("num_nodes")) { QuotaUtil.createQuota(zk, path, -1L, numNodes); } 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()); } } }