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.client;
019
020import java.io.IOException;
021import java.net.URI;
022import org.apache.hadoop.conf.Configuration;
023import org.apache.hadoop.hbase.HConstants;
024import org.apache.hadoop.hbase.security.User;
025import org.apache.yetus.audience.InterfaceAudience;
026import org.slf4j.Logger;
027import org.slf4j.LoggerFactory;
028
029/**
030 * Connection registry creator implementation for creating {@link ZKConnectionRegistry}.
031 */
032@InterfaceAudience.Private
033public class ZKConnectionRegistryURIFactory implements ConnectionRegistryURIFactory {
034
035  private static final Logger LOG = LoggerFactory.getLogger(ZKConnectionRegistryURIFactory.class);
036
037  @Override
038  public ConnectionRegistry create(URI uri, Configuration conf, User user) throws IOException {
039    assert getScheme().equals(uri.getScheme());
040    LOG.debug("connect to hbase cluster with zk quorum='{}' and parent='{}'", uri.getAuthority(),
041      uri.getPath());
042    Configuration c = new Configuration(conf);
043    c.set(HConstants.CLIENT_ZOOKEEPER_QUORUM, uri.getAuthority());
044    c.set(HConstants.ZOOKEEPER_ZNODE_PARENT, uri.getPath());
045    return new ZKConnectionRegistry(c, user);
046  }
047
048  @Override
049  public String getScheme() {
050    return "hbase+zk";
051  }
052}