001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.util;
019
020import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
021import org.apache.yetus.audience.InterfaceAudience;
022
023/**
024 * Utility used by both Master and Region Server web UI JSP pages.
025 */
026@InterfaceAudience.Private
027public final class ZKStringFormatter {
028
029  private ZKStringFormatter() {
030    // Do not instantiate.
031  }
032
033  public static String formatZKString(ZKWatcher zookeeper) {
034    StringBuilder quorums = new StringBuilder();
035    String zkQuorum = zookeeper.getQuorum();
036
037    if (null == zkQuorum) {
038      return quorums.toString();
039    }
040
041    String[] zks = zkQuorum.split(",");
042
043    if (zks.length == 0) {
044      return quorums.toString();
045    }
046
047    for (int i = 0; i < zks.length; ++i) {
048      quorums.append(zks[i].trim());
049
050      if (i != (zks.length - 1)) {
051        quorums.append("<br/>");
052      }
053    }
054
055    return quorums.toString();
056  }
057}