| /* |
| * 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.types.parser; |
| |
| import org.apache.flink.configuration.ConfigConstants; |
| import org.apache.flink.types.parser.FieldParser.ParseErrorState; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| |
| public class FieldParserTest { |
| |
| @Test |
| public void testDelimiterNext() throws Exception { |
| byte[] bytes = "aaabc".getBytes(); |
| byte[] delim = "aa".getBytes(); |
| assertTrue(FieldParser.delimiterNext(bytes, 0, delim)); |
| assertTrue(FieldParser.delimiterNext(bytes, 1, delim)); |
| assertFalse(FieldParser.delimiterNext(bytes, 2, delim)); |
| } |
| |
| @Test |
| public void testEndsWithDelimiter() throws Exception { |
| byte[] bytes = "aabc".getBytes(); |
| byte[] delim = "ab".getBytes(); |
| assertFalse(FieldParser.endsWithDelimiter(bytes, 0, delim)); |
| assertFalse(FieldParser.endsWithDelimiter(bytes, 1, delim)); |
| assertTrue(FieldParser.endsWithDelimiter(bytes, 2, delim)); |
| assertFalse(FieldParser.endsWithDelimiter(bytes, 3, delim)); |
| } |
| |
| @Test |
| public void testNextStringEndPos() throws Exception { |
| |
| FieldParser parser = new TestFieldParser<String>(); |
| // single-char delimiter |
| byte[] singleCharDelim = "|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| |
| byte[] bytes1 = "a|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| assertEquals(1, parser.nextStringEndPos(bytes1, 0, bytes1.length, singleCharDelim)); |
| assertEquals(-1, parser.nextStringEndPos(bytes1, 1, bytes1.length, singleCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(bytes1, 1, 1, singleCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(bytes1, 2, bytes1.length, singleCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| byte[] bytes2 = "a||".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(bytes2, 1, bytes2.length, singleCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| byte[] bytes3 = "a|c".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(bytes3, 1, bytes3.length, singleCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| parser.resetParserState(); |
| assertEquals(3, parser.nextStringEndPos(bytes3, 2, bytes3.length, singleCharDelim)); |
| assertEquals(ParseErrorState.NONE, parser.getErrorState()); |
| |
| byte[] bytes4 = "a|c|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(3, parser.nextStringEndPos(bytes4, 2, bytes4.length, singleCharDelim)); |
| assertEquals(ParseErrorState.NONE, parser.getErrorState()); |
| |
| // multi-char delimiter |
| byte[] multiCharDelim = "|#|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| byte[] mBytes1 = "a|#|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(1, parser.nextStringEndPos(mBytes1, 0, mBytes1.length, multiCharDelim)); |
| assertEquals(-1, parser.nextStringEndPos(mBytes1, 1, mBytes1.length, multiCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(mBytes1, 1, 1, multiCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| byte[] mBytes2 = "a|#||#|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(mBytes2, 1, mBytes2.length, multiCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| byte[] mBytes3 = "a|#|b".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(-1, parser.nextStringEndPos(mBytes3, 1, mBytes3.length, multiCharDelim)); |
| assertEquals(ParseErrorState.EMPTY_COLUMN, parser.getErrorState()); |
| |
| parser.resetParserState(); |
| assertEquals(5, parser.nextStringEndPos(mBytes3, 2, mBytes3.length, multiCharDelim)); |
| assertEquals(ParseErrorState.NONE, parser.getErrorState()); |
| |
| byte[] mBytes4 = "a|#|b|#|".getBytes(ConfigConstants.DEFAULT_CHARSET); |
| parser.resetParserState(); |
| assertEquals(5, parser.nextStringEndPos(mBytes4, 2, mBytes4.length, multiCharDelim)); |
| assertEquals(ParseErrorState.NONE, parser.getErrorState()); |
| |
| } |
| |
| } |
| |
| /** |
| * A FieldParser just for nextStringEndPos test. |
| * |
| * @param <T> The type that is parsed. |
| */ |
| class TestFieldParser<T> extends FieldParser<T>{ |
| |
| @Override |
| protected int parseField(byte[] bytes, int startPos, int limit, byte[] delim, T reuse) { |
| return 0; |
| } |
| |
| @Override |
| public T getLastResult() { |
| return null; |
| } |
| |
| @Override |
| public T createValue() { |
| return null; |
| } |
| |
| @Override |
| protected void resetParserState() { |
| super.resetParserState(); |
| } |
| } |