rmetzger commented on a change in pull request #12178: URL: https://github.com/apache/flink/pull/12178#discussion_r431074053
########## File path: flink-connectors/flink-connector-hbase/src/main/java/org/apache/flink/connector/hbase/source/HBaseRowDataInputFormat.java ########## @@ -0,0 +1,108 @@ +/* + * 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.flink.connector.hbase.source; + +import org.apache.flink.api.common.io.InputFormat; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.connector.hbase.util.HBaseSerde; +import org.apache.flink.connector.hbase.util.HBaseTableSchema; +import org.apache.flink.table.data.RowData; + +import org.apache.hadoop.hbase.HBaseConfiguration; +import org.apache.hadoop.hbase.TableName; +import org.apache.hadoop.hbase.TableNotFoundException; +import org.apache.hadoop.hbase.client.Connection; +import org.apache.hadoop.hbase.client.ConnectionFactory; +import org.apache.hadoop.hbase.client.HTable; +import org.apache.hadoop.hbase.client.Result; +import org.apache.hadoop.hbase.client.Scan; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; + +/** + * {@link InputFormat} subclass that wraps the access for HTables. Returns the result as {@link RowData} + */ +public class HBaseRowDataInputFormat extends AbstractTableInputFormat<RowData> { + private static final long serialVersionUID = 1L; + private static final Logger LOG = LoggerFactory.getLogger(HBaseRowDataInputFormat.class); + + private final String tableName; + private final HBaseTableSchema schema; + private final String nullStringLiteral; + + private transient HBaseSerde serde; + + private transient org.apache.hadoop.conf.Configuration conf; + + public HBaseRowDataInputFormat( + org.apache.hadoop.conf.Configuration conf, + String tableName, + HBaseTableSchema schema, + String nullStringLiteral) { + this.tableName = tableName; + this.conf = conf; + this.schema = schema; + this.nullStringLiteral = nullStringLiteral; + } + + @Override + public void configure(Configuration parameters) { + LOG.info("Initializing HBase configuration."); + this.serde = new HBaseSerde(schema, nullStringLiteral); + connectToTable(); + if (table != null) { + scan = getScanner(); + } + } + + @Override + protected Scan getScanner() { + return serde.createScan(); + } + + @Override + public String getTableName() { + return tableName; + } + + @Override + protected RowData mapResultToOutType(Result res) { + return serde.convertToRow(res); + } + + private void connectToTable() { + + if (this.conf == null) { + this.conf = HBaseConfiguration.create(); Review comment: For context: https://issues.apache.org/jira/browse/FLINK-17968 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
