sjwiesman commented on a change in pull request #8903: [FLINK-12747][docs] Getting Started - Table API Example Walkthrough URL: https://github.com/apache/flink/pull/8903#discussion_r306908708
########## File path: flink-walkthroughs/flink-walkthrough-common/src/main/java/org/apache/flink/walkthrough/common/table/SpendReportTableSink.java ########## @@ -0,0 +1,94 @@ +/* + * 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.walkthrough.common.table; + +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.flink.api.common.typeinfo.Types; +import org.apache.flink.api.java.DataSet; +import org.apache.flink.streaming.api.datastream.DataStream; +import org.apache.flink.table.api.TableSchema; +import org.apache.flink.table.sinks.AppendStreamTableSink; +import org.apache.flink.table.sinks.BatchTableSink; +import org.apache.flink.table.sinks.TableSink; +import org.apache.flink.table.types.DataType; +import org.apache.flink.types.Row; +import org.apache.flink.walkthrough.common.sink.LoggerOutputFormat; + +/** + * A simple table sink for writing to stdout. + */ +@PublicEvolving +@SuppressWarnings("deprecation") +public class SpendReportTableSink implements AppendStreamTableSink<Row>, BatchTableSink<Row> { + + private final TableSchema schema; + + public SpendReportTableSink() { + this.schema = TableSchema + .builder() + .field("accountId", Types.LONG) + .field("timestamp", Types.SQL_TIMESTAMP) + .field("amount", Types.DOUBLE) + .build(); + } + + @Override + public void emitDataSet(DataSet<Row> dataSet) { + dataSet + .map(SpendReportTableSink::format) + .output(new LoggerOutputFormat()); + } + + @Override + public void emitDataStream(DataStream<Row> dataStream) { + dataStream + .map(SpendReportTableSink::format) + .writeUsingOutputFormat(new LoggerOutputFormat()); + } + + @Override + public TableSchema getTableSchema() { + return schema; + } + + @Override + public DataType getConsumedDataType() { + return getTableSchema().toRowDataType(); + } + + @Override + public String[] getFieldNames() { + return getTableSchema().getFieldNames(); + } + + @Override + public TypeInformation<?>[] getFieldTypes() { + return getTableSchema().getFieldTypes(); + } + + @Override + public TableSink<Row> configure(String[] fieldNames, TypeInformation<?>[] fieldTypes) { + return this; + } + + private static String format(Row row) { Review comment: Thank you, did not know how to do that! ---------------------------------------------------------------- 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: us...@infra.apache.org With regards, Apache Git Services
