/*
* 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.test.streaming.api.outputformat;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.util.StreamingProgramTestBase;
import org.apache.flink.test.testdata.WordCountData;
import org.apache.flink.test.testfunctions.Tokenizer;
public class TextOutputFormatITCase extends StreamingProgramTestBase {
protected String resultPath;
@Override
protected void preSubmit() throws Exception {
resultPath = getTempDirPath("result");
}
@Override
protected void testProgram() throws Exception {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
DataStream<String> text = env.fromElements(WordCountData.TEXT);
DataStream<Tuple2<String, Integer>> counts = text
.flatMap(new Tokenizer())
.keyBy(0).sum(1);
counts.writeAsText(resultPath);
env.execute("WriteAsTextTest");
}
@Override
protected void postSubmit() throws Exception {
compareResultsByLinesInMemory(WordCountData.STREAMING_COUNTS_AS_TUPLES, resultPath);
}
}