| /* |
| * 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 |
| * |
| * https://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.avro.tool; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.PrintStream; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.avro.AvroRuntimeException; |
| import org.apache.avro.AvroTypeException; |
| import org.apache.avro.Schema; |
| import org.apache.avro.Schema.Type; |
| import org.apache.avro.file.DataFileReader; |
| import org.apache.avro.file.DataFileWriter; |
| import org.apache.avro.generic.GenericDatumReader; |
| import org.apache.avro.generic.GenericDatumWriter; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| @SuppressWarnings("deprecation") |
| public class TestDataFileTools { |
| static final int COUNT = 15; |
| static File sampleFile; |
| static String jsonData; |
| static Schema schema; |
| static File schemaFile; |
| |
| private static final String KEY_NEEDING_ESCAPES = "trn\\\r\t\n"; |
| private static final String ESCAPED_KEY = "trn\\\\\\r\\t\\n"; |
| |
| @ClassRule |
| public static TemporaryFolder DIR = new TemporaryFolder(); |
| |
| @BeforeClass |
| public static void writeSampleFile() throws IOException { |
| sampleFile = new File(DIR.getRoot(), TestDataFileTools.class.getName() + ".avro"); |
| schema = Schema.create(Type.INT); |
| schemaFile = new File(DIR.getRoot(), "schema-temp.schema"); |
| try (FileWriter fw = new FileWriter(schemaFile)) { |
| fw.append(schema.toString()); |
| } |
| |
| StringBuilder builder = new StringBuilder(); |
| try (DataFileWriter<Object> writer = new DataFileWriter<>(new GenericDatumWriter<>(schema))) { |
| writer.setMeta(KEY_NEEDING_ESCAPES, ""); |
| writer.create(schema, sampleFile); |
| |
| for (int i = 0; i < COUNT; ++i) { |
| builder.append(Integer.toString(i)); |
| builder.append("\n"); |
| writer.append(i); |
| } |
| } |
| |
| jsonData = builder.toString(); |
| } |
| |
| private String run(Tool tool, String... args) throws Exception { |
| return run(tool, null, args); |
| } |
| |
| private String run(Tool tool, InputStream stdin, String... args) throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| PrintStream p = new PrintStream(baos); |
| tool.run(stdin, p, // stdout |
| null, // stderr |
| Arrays.asList(args)); |
| return baos.toString("UTF-8").replace("\r", ""); |
| } |
| |
| @Test |
| public void testRead() throws Exception { |
| assertEquals(jsonData, run(new DataFileReadTool(), sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadStdin() throws Exception { |
| FileInputStream stdin = new FileInputStream(sampleFile); |
| assertEquals(jsonData, run(new DataFileReadTool(), stdin, "-")); |
| } |
| |
| @Test |
| public void testReadToJsonPretty() throws Exception { |
| assertEquals(jsonData, run(new DataFileReadTool(), "--pretty", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadWithReaderSchema() throws Exception { |
| assertEquals(jsonData, run(new DataFileReadTool(), "--reader-schema", "\"long\"", sampleFile.getPath())); |
| } |
| |
| @Test(expected = AvroTypeException.class) |
| public void testReadWithIncompatibleReaderSchema() throws Exception { |
| // Fails: an int can't be read as a string. |
| run(new DataFileReadTool(), "--reader-schema", "\"string\"", sampleFile.getPath()); |
| } |
| |
| @Test |
| public void testReadWithReaderSchemaFile() throws Exception { |
| File readerSchemaFile = new File(DIR.getRoot(), "reader-schema-temp.schema"); |
| try (FileWriter fw = new FileWriter(readerSchemaFile)) { |
| fw.append("\"long\""); |
| } |
| assertEquals(jsonData, |
| run(new DataFileReadTool(), "--reader-schema-file", readerSchemaFile.getPath(), sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadHeadDefaultCount() throws Exception { |
| String expectedJson = jsonData.substring(0, 20); // first 10 numbers |
| assertEquals(expectedJson, run(new DataFileReadTool(), "--head", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadHeadEquals3Count() throws Exception { |
| String expectedJson = jsonData.substring(0, 6); // first 3 numbers |
| assertEquals(expectedJson, run(new DataFileReadTool(), "--head=3", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadHeadSpace5Count() throws Exception { |
| String expectedJson = jsonData.substring(0, 10); // first 5 numbers |
| assertEquals(expectedJson, run(new DataFileReadTool(), "--head", "5", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadHeadLongCount() throws Exception { |
| assertEquals(jsonData, run(new DataFileReadTool(), "--head=3000000000", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testReadHeadEqualsZeroCount() throws Exception { |
| assertEquals("\n", run(new DataFileReadTool(), "--head=0", sampleFile.getPath())); |
| } |
| |
| @Test(expected = AvroRuntimeException.class) |
| public void testReadHeadNegativeCount() throws Exception { |
| assertEquals("\n", run(new DataFileReadTool(), "--head=-5", sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testGetMeta() throws Exception { |
| String output = run(new DataFileGetMetaTool(), sampleFile.getPath()); |
| assertTrue(output, output.contains("avro.schema\t" + schema.toString() + "\n")); |
| assertTrue(output, output.contains(ESCAPED_KEY + "\t\n")); |
| } |
| |
| @Test |
| public void testGetMetaForSingleKey() throws Exception { |
| assertEquals(schema.toString() + "\n", |
| run(new DataFileGetMetaTool(), sampleFile.getPath(), "--key", "avro.schema")); |
| } |
| |
| @Test |
| public void testGetSchema() throws Exception { |
| assertEquals(schema.toString() + "\n", run(new DataFileGetSchemaTool(), sampleFile.getPath())); |
| } |
| |
| @Test |
| public void testWriteWithDeflate() throws Exception { |
| testWrite("deflate", Arrays.asList("--codec", "deflate"), "deflate"); |
| } |
| |
| @Test |
| public void testWrite() throws Exception { |
| testWrite("plain", Collections.emptyList(), "null"); |
| } |
| |
| public void testWrite(String name, List<String> extra, String expectedCodec) throws Exception { |
| testWrite(name, extra, expectedCodec, "-schema", schema.toString()); |
| testWrite(name, extra, expectedCodec, "-schema-file", schemaFile.toString()); |
| } |
| |
| public void testWrite(String name, List<String> extra, String expectedCodec, String... extraArgs) throws Exception { |
| File outFile = new File(DIR.getRoot(), TestDataFileTools.class + ".testWrite." + name + ".avro"); |
| try (FileOutputStream fout = new FileOutputStream(outFile)) { |
| try (PrintStream out = new PrintStream(fout)) { |
| List<String> args = new ArrayList<>(); |
| Collections.addAll(args, extraArgs); |
| args.add("-"); |
| args.addAll(extra); |
| new DataFileWriteTool().run(new ByteArrayInputStream(jsonData.getBytes("UTF-8")), new PrintStream(out), // stdout |
| null, // stderr |
| args); |
| } |
| } |
| |
| // Read it back, and make sure it's valid. |
| GenericDatumReader<Object> reader = new GenericDatumReader<>(); |
| try (DataFileReader<Object> fileReader = new DataFileReader<>(outFile, reader)) { |
| int i = 0; |
| for (Object datum : fileReader) { |
| assertEquals(i, datum); |
| i++; |
| } |
| assertEquals(COUNT, i); |
| assertEquals(schema, fileReader.getSchema()); |
| String codecStr = fileReader.getMetaString("avro.codec"); |
| if (null == codecStr) { |
| codecStr = "null"; |
| } |
| assertEquals(expectedCodec, codecStr); |
| } |
| } |
| |
| @Test(expected = IOException.class) |
| public void testFailureOnWritingPartialJSONValues() throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| PrintStream out = new PrintStream(baos); |
| new DataFileWriteTool().run(new ByteArrayInputStream("{".getBytes("UTF-8")), new PrintStream(out), // stdout |
| null, // stderr |
| Arrays.asList("-schema", "{ \"type\":\"record\", \"fields\":" + "[{\"name\":\"foo\", \"type\":\"string\"}], " |
| + "\"name\":\"boring\" }", "-")); |
| } |
| |
| @Test |
| public void testWritingZeroJsonValues() throws Exception { |
| File outFile = writeToAvroFile("zerojsonvalues", schema.toString(), ""); |
| assertEquals(0, countRecords(outFile)); |
| } |
| |
| private int countRecords(File outFile) throws IOException { |
| GenericDatumReader<Object> reader = new GenericDatumReader<>(); |
| try (DataFileReader<Object> fileReader = new DataFileReader<>(outFile, reader)) { |
| int i = 0; |
| for (@SuppressWarnings("unused") |
| Object datum : fileReader) { |
| i++; |
| } |
| return i; |
| } |
| } |
| |
| @Test |
| public void testDifferentSeparatorsBetweenJsonRecords() throws Exception { |
| File outFile = writeToAvroFile("separators", "{ \"type\":\"array\", \"items\":\"int\" }", |
| "[] [] []\n[][3] "); |
| assertEquals(5, countRecords(outFile)); |
| } |
| |
| public File writeToAvroFile(String testName, String schema, String json) throws Exception { |
| File outFile = new File(DIR.getRoot(), TestDataFileTools.class + "." + testName + ".avro"); |
| try (FileOutputStream fout = new FileOutputStream(outFile)) { |
| try (PrintStream out = new PrintStream(fout)) { |
| new DataFileWriteTool().run(new ByteArrayInputStream(json.getBytes("UTF-8")), new PrintStream(out), // stdout |
| null, // stderr |
| Arrays.asList("-schema", schema, "-")); |
| } |
| } |
| return outFile; |
| } |
| |
| @Test |
| public void testDefaultCodec() throws Exception { |
| // The default codec for fromjson is null |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| PrintStream err = new PrintStream(baos); |
| new DataFileWriteTool().run(new ByteArrayInputStream(jsonData.getBytes()), null, err, Collections.emptyList()); |
| assertTrue(baos.toString().contains("Compression codec (default: null)")); |
| } |
| } |