| /* |
| * 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.pig.impl.streaming; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.io.BufferedPositionedInputStream; |
| import org.apache.pig.impl.logicalLayer.schema.Schema.FieldSchema; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| |
| |
| @RunWith(JUnit4.class) |
| public class TestStreamingUDFOutputHandler { |
| TupleFactory tf = TupleFactory.getInstance(); |
| |
| @Test |
| public void testGetValue__noNewLine() throws Exception{ |
| FieldSchema fs = new FieldSchema("", DataType.CHARARRAY); |
| String data = "a|_\n"; |
| |
| PigStreamingUDF deserializer = new PigStreamingUDF(fs); |
| OutputHandler outty = new StreamingUDFOutputHandler(deserializer); |
| outty.bindTo(null, getIn(data), 0, 0); |
| |
| Tuple t = outty.getNext(); |
| |
| Assert.assertEquals(tf.newTuple("a"), t); |
| } |
| |
| @Test |
| public void testGetValue__embeddedNewLine() throws Exception{ |
| FieldSchema fs = new FieldSchema("", DataType.CHARARRAY); |
| String data = "abc\ndef\nghi\njkl|_\n"; |
| |
| PigStreamingUDF deserializer = new PigStreamingUDF(fs); |
| OutputHandler outty = new StreamingUDFOutputHandler(deserializer); |
| outty.bindTo(null, getIn(data), 0, 0); |
| |
| Tuple t = outty.getNext(); |
| |
| Assert.assertEquals(tf.newTuple("abc\ndef\nghi\njkl"), t); |
| } |
| |
| @Test |
| public void testGetValue__earlyNewLine() throws Exception{ |
| FieldSchema fs = new FieldSchema("", DataType.CHARARRAY); |
| String data = "\na|_\n"; |
| |
| PigStreamingUDF deserializer = new PigStreamingUDF(fs); |
| OutputHandler outty = new StreamingUDFOutputHandler(deserializer); |
| outty.bindTo(null, getIn(data), 0, 0); |
| |
| Tuple t = outty.getNext(); |
| |
| Assert.assertEquals(tf.newTuple("\na"), t); |
| } |
| |
| private BufferedPositionedInputStream getIn(String input) throws UnsupportedEncodingException { |
| InputStream stream = new ByteArrayInputStream(input.getBytes("UTF-8")); |
| BufferedPositionedInputStream result = new BufferedPositionedInputStream(stream); |
| return result; |
| } |
| } |