| /** |
| * 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 org.apache.ambari.metrics.core.timeline.query; |
| |
| |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.SQLException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.client.ConnectionFactory; |
| import org.apache.hadoop.hbase.client.HBaseAdmin; |
| |
| public class DefaultPhoenixDataSource implements PhoenixConnectionProvider { |
| |
| static final Log LOG = LogFactory.getLog(DefaultPhoenixDataSource.class); |
| private static final String ZOOKEEPER_CLIENT_PORT = "hbase.zookeeper.property.clientPort"; |
| private static final String ZOOKEEPER_QUORUM = "hbase.zookeeper.quorum"; |
| private static final String ZNODE_PARENT = "zookeeper.znode.parent"; |
| |
| private static final String connectionUrl = "jdbc:phoenix:%s:%s:%s"; |
| private final String url; |
| |
| private Configuration hbaseConf; |
| |
| public DefaultPhoenixDataSource(Configuration hbaseConf) { |
| this.hbaseConf = hbaseConf; |
| String zookeeperClientPort = hbaseConf.getTrimmed(ZOOKEEPER_CLIENT_PORT, "2181"); |
| String zookeeperQuorum = hbaseConf.getTrimmed(ZOOKEEPER_QUORUM); |
| String znodeParent = hbaseConf.getTrimmed(ZNODE_PARENT, "/ams-hbase-unsecure"); |
| if (zookeeperQuorum == null || zookeeperQuorum.isEmpty()) { |
| throw new IllegalStateException("Unable to find Zookeeper quorum to " + |
| "access HBase store using Phoenix."); |
| } |
| |
| url = String.format(connectionUrl, |
| zookeeperQuorum, |
| zookeeperClientPort, |
| znodeParent); |
| } |
| |
| /** |
| * Get HBaseAdmin for table ops. |
| * @return @HBaseAdmin |
| * @throws IOException |
| */ |
| public HBaseAdmin getHBaseAdmin() throws IOException { |
| return (HBaseAdmin) ConnectionFactory.createConnection(hbaseConf).getAdmin(); |
| } |
| |
| /** |
| * Get JDBC connection to HBase store. Assumption is that the hbase |
| * configuration is present on the classpath and loaded by the caller into |
| * the Configuration object. |
| * Phoenix already caches the HConnection between the client and HBase |
| * cluster. |
| * |
| * @return @java.sql.Connection |
| */ |
| public Connection getConnection() throws SQLException { |
| |
| LOG.debug("Metric store connection url: " + url); |
| try { |
| return DriverManager.getConnection(url); |
| } catch (SQLException e) { |
| LOG.warn("Unable to connect to HBase store using Phoenix.", e); |
| |
| throw e; |
| } |
| } |
| |
| } |