| /* |
| * 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.samza.system.hdfs; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.samza.Partition; |
| import org.apache.samza.SamzaException; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| |
| public class TestPartitionDesctiptorUtil { |
| |
| @Test |
| public void testBasicEncodeDecode() { |
| Map<Partition, List<String>> input = new HashMap<>(); |
| input.put(new Partition(0), Collections.singletonList("path_0")); |
| String[] array = {"path_1", "path_2"}; |
| input.put(new Partition(1), Arrays.asList(array)); |
| input.put(new Partition(3), Collections.singletonList("path_3")); |
| String json = PartitionDescriptorUtil.getJsonFromDescriptorMap(input); |
| Map<Partition, List<String>> output = PartitionDescriptorUtil.getDescriptorMapFromJson(json); |
| Assert.assertEquals(3, output.entrySet().size()); |
| Assert.assertTrue(output.containsKey(new Partition(0))); |
| Assert.assertEquals("path_0", output.get(new Partition(0)).get(0)); |
| Assert.assertTrue(output.containsKey(new Partition(1))); |
| Assert.assertEquals("path_1", output.get(new Partition(1)).get(0)); |
| Assert.assertEquals("path_2", output.get(new Partition(1)).get(1)); |
| Assert.assertTrue(output.containsKey(new Partition(3))); |
| Assert.assertEquals("path_3", output.get(new Partition(3)).get(0)); |
| } |
| |
| @Test |
| public void testSingleEntry() { |
| Map<Partition, List<String>> input = new HashMap<>(); |
| input.put(new Partition(1), Collections.singletonList("random_path_1")); |
| String json = PartitionDescriptorUtil.getJsonFromDescriptorMap(input); |
| Map<Partition, List<String>> output = PartitionDescriptorUtil.getDescriptorMapFromJson(json); |
| Assert.assertEquals(1, output.entrySet().size()); |
| Assert.assertTrue(output.containsKey(new Partition(1))); |
| Assert.assertEquals("random_path_1", output.get(new Partition(1)).get(0)); |
| } |
| |
| @Test |
| public void testKeyOverriding() { |
| Map<Partition, List<String>> input = new HashMap<>(); |
| input.put(new Partition(0), Collections.singletonList("path_0")); |
| input.put(new Partition(0), Collections.singletonList("new_path_0")); |
| String json = PartitionDescriptorUtil.getJsonFromDescriptorMap(input); |
| Map<Partition, List<String>> output = PartitionDescriptorUtil.getDescriptorMapFromJson(json); |
| Assert.assertEquals(1, output.entrySet().size()); |
| Assert.assertTrue(output.containsKey(new Partition(0))); |
| Assert.assertEquals("new_path_0", output.get(new Partition(0)).get(0)); |
| } |
| |
| @Test |
| public void testEmptyInput() { |
| Map<Partition, List<String>> input = new HashMap<>(); |
| String json = PartitionDescriptorUtil.getJsonFromDescriptorMap(input); |
| Assert.assertNotNull(json); |
| Map<Partition, List<String>> output = PartitionDescriptorUtil.getDescriptorMapFromJson(json); |
| Assert.assertTrue(output.isEmpty()); |
| } |
| |
| @Test(expected = SamzaException.class) |
| public void testInvalidInput() { |
| String json = "invalidStr"; |
| PartitionDescriptorUtil.getDescriptorMapFromJson(json); |
| } |
| } |