Java tutorial
/* * Copyright (C) 2017 Baifendian Corporation * * Licensed 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.baifendian.swordfish.common.job.struct.datasource; import java.io.IOException; import org.apache.commons.lang3.StringUtils; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.HBaseConfiguration; import org.apache.hadoop.hbase.client.Connection; import org.apache.hadoop.hbase.client.ConnectionFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * HBASE?? */ public class HBaseDatasource extends Datasource { private static Logger logger = LoggerFactory.getLogger(HBaseDatasource.class.getName()); private String zkQuorum; private String zkZnodeParent; private Integer zkPort; public String getZkQuorum() { return zkQuorum; } public void setZkQuorum(String zkQuorum) { this.zkQuorum = zkQuorum; } public String getZkZnodeParent() { return zkZnodeParent; } public void setZkZnodeParent(String zkZnodeParent) { this.zkZnodeParent = zkZnodeParent; } public Integer getZkPort() { return zkPort; } public void setZkPort(Integer zkPort) { this.zkPort = zkPort; } @Override public void isConnectable() throws Exception { Connection con = null; try { Configuration config = HBaseConfiguration.create(); config.set("hbase.zookeeper.quorum", this.zkQuorum); if (!StringUtils.isEmpty(this.zkZnodeParent)) { config.set("zookeeper.znode.parent", this.zkZnodeParent); } if (this.zkPort != null && this.zkPort != 0) { config.set("hbase.zookeeper.property.clientPort", this.zkPort.toString()); } con = ConnectionFactory.createConnection(config); } finally { if (con != null) { try { con.close(); } catch (IOException e) { logger.error("hbase try conn close conn error", e); throw e; } } } } }