Github user JamesRTaylor commented on a diff in the pull request: https://github.com/apache/phoenix/pull/74#discussion_r29994928 --- Diff: phoenix-hive/src/main/java/org/apache/phoenix/hive/util/HiveConnectionUtil.java --- @@ -0,0 +1,161 @@ +/* + * Copyright 2010 The Apache Software Foundation + * + * 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 maynot 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 applicablelaw 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.phoenix.hive.util; + +import java.sql.Connection; +import java.sql.DriverManager; +import java.sql.SQLException; +import java.util.Map; +import java.util.Properties; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hbase.HConstants; +import org.apache.hadoop.hive.metastore.api.Table; +import org.apache.phoenix.util.PhoenixRuntime; +import org.apache.phoenix.hive.util.HiveConfigurationUtil; + +import com.google.common.base.Preconditions; + +/** + * Describe your class here. + * + * @since 138 + */ +public final class HiveConnectionUtil { + private static final Log LOG = LogFactory.getLog(HiveConnectionUtil.class); + private static Connection connection = null; + + /** + * Returns the {#link Connection} from Configuration + * @param configuration + * @return + * @throws SQLException + */ + public static Connection getConnection(final Configuration configuration) throws SQLException { + Preconditions.checkNotNull(configuration); + if (connection == null) { + final Properties props = new Properties(); + String quorum = + configuration + .get(HiveConfigurationUtil.ZOOKEEPER_QUORUM != null ? HiveConfigurationUtil.ZOOKEEPER_QUORUM + : configuration.get(HConstants.ZOOKEEPER_QUORUM)); + String znode = + configuration + .get(HiveConfigurationUtil.ZOOKEEPER_PARENT != null ? HiveConfigurationUtil.ZOOKEEPER_PARENT + : configuration.get(HConstants.ZOOKEEPER_ZNODE_PARENT)); + String port = + configuration + .get(HiveConfigurationUtil.ZOOKEEPER_PORT != null ? HiveConfigurationUtil.ZOOKEEPER_PORT + : configuration.get(HConstants.ZOOKEEPER_CLIENT_PORT)); + if (!znode.startsWith("/")) { + znode = "/" + znode; + } + + try { + // Not necessary shoud pick it up + Class.forName("org.apache.phoenix.jdbc.PhoenixDriver"); + + LOG.info("Connection info: " + PhoenixRuntime.JDBC_PROTOCOL + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + quorum + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + port + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + znode); + + final Connection conn = + DriverManager.getConnection(PhoenixRuntime.JDBC_PROTOCOL + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + quorum + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + port + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + znode); + String autocommit = configuration.get(HiveConfigurationUtil.AUTOCOMMIT); + if (autocommit != null && autocommit.equalsIgnoreCase("true")) { + conn.setAutoCommit(true); + } else { + conn.setAutoCommit(false); + } + connection = conn; + } catch (ClassNotFoundException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + return connection; + } + + /** + * Returns the {#link Connection} from Configuration + * @param configuration + * @return + * @throws SQLException + */ + //TODO redundant + public static Connection getConnection(final Table tbl) throws SQLException { + Preconditions.checkNotNull(tbl); + Map<String, String> TblParams = tbl.getParameters(); + String quorum = + TblParams.get(HiveConfigurationUtil.ZOOKEEPER_QUORUM) != null ? TblParams.get( + HiveConfigurationUtil.ZOOKEEPER_QUORUM).trim() + : HiveConfigurationUtil.ZOOKEEPER_QUORUM_DEFAULT; + String port = + TblParams.get(HiveConfigurationUtil.ZOOKEEPER_PORT) != null ? TblParams.get( + HiveConfigurationUtil.ZOOKEEPER_PORT).trim() + : HiveConfigurationUtil.ZOOKEEPER_PORT_DEFAULT; + String znode = + TblParams.get(HiveConfigurationUtil.ZOOKEEPER_PARENT) != null ? TblParams.get( + HiveConfigurationUtil.ZOOKEEPER_PARENT).trim() + : HiveConfigurationUtil.ZOOKEEPER_PARENT_DEFAULT; + if (!znode.startsWith("/")) { + znode = "/" + znode; + } + try { + Class.forName("org.apache.phoenix.jdbc.PhoenixDriver"); + final Connection conn = + DriverManager.getConnection((PhoenixRuntime.JDBC_PROTOCOL + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + quorum + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + port + + PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR + znode)); + String autocommit = TblParams.get(HiveConfigurationUtil.AUTOCOMMIT); + if(autocommit!=null && autocommit.equalsIgnoreCase("true")){ + conn.setAutoCommit(true); + }else{ + conn.setAutoCommit(false); + } + + return conn; + } catch (ClassNotFoundException e) { + e.printStackTrace(); --- End diff -- Here too. Please make sure there aren't other occurrences of swallowing exceptions. Just throw a SQLException that wraps the ClassNotFoundException.
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