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avro/src/test/java/com/fasterxml/jackson/dataformat/avro/ArrayTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package com.fasterxml.jackson.dataformat.avro; | ||
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| import java.io.ByteArrayOutputStream; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
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| import com.fasterxml.jackson.core.*; | ||
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| import com.fasterxml.jackson.databind.*; | ||
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| public class ArrayTest extends AvroTestBase | ||
| { | ||
| private final AvroMapper MAPPER = getMapper(); | ||
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| // Simple test for a single array | ||
| public void testRootStringArray() throws Exception | ||
| { | ||
| AvroSchema schema = getStringArraySchema(); | ||
| List<String> input = Arrays.asList("foo", "bar"); | ||
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| byte[] b = MAPPER.writer(schema).writeValueAsBytes(input); | ||
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| // writing's good (probably), let's read. First as List: | ||
| List<String> result = MAPPER.readerFor(List.class) | ||
| .with(schema) | ||
| .readValue(b); | ||
| assertNotNull(result); | ||
| assertEquals(2, result.size()); | ||
| assertEquals(input.get(0), result.get(0)); | ||
| assertEquals(input.get(1), result.get(1)); | ||
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| // then as String array | ||
| String[] array = MAPPER.readerFor(String[].class) | ||
| .with(schema) | ||
| .readValue(b); | ||
| assertNotNull(array); | ||
| assertEquals(2, array.length); | ||
| assertEquals(input.get(0), array[0]); | ||
| assertEquals(input.get(1), array[1]); | ||
| } | ||
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| // And more complex: sequence of (String) arrays | ||
| public void testStringArraySequence() throws Exception | ||
| { | ||
| AvroSchema schema = getStringArraySchema(); | ||
| List<String> input1 = Arrays.asList("foo", "bar"); | ||
| List<String> input2 = Arrays.asList("foobar"); | ||
| String[] input3 = new String[] { "a", "b", "c"}; | ||
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| // First: write a sequence of 3 root-level Employee Objects | ||
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| ByteArrayOutputStream b = new ByteArrayOutputStream(); | ||
| SequenceWriter sw = MAPPER.writer(schema) | ||
| .writeValues(b); | ||
| sw.write(input1); | ||
| int curr = b.size(); | ||
| sw.write(input2); | ||
| int diff = b.size() - curr; | ||
| if (diff == 0) { | ||
| fail("Should have output more bytes for second entry, did not, total: "+curr); | ||
| } | ||
| sw.write(input3); | ||
| sw.close(); | ||
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| // 18-Jan-2017, tatu: This get bit tricky just because `readValues()` doesn't | ||
| // quite know whether to advance cursor to START_ARRAY or not, and we must | ||
| // instead prepare things... and use direct bind | ||
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| JsonParser p = MAPPER.getFactory().createParser(b.toByteArray()); | ||
| p.setSchema(schema); | ||
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| assertToken(JsonToken.START_ARRAY, p.nextToken()); | ||
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| List<?> result1 = MAPPER.readValue(p, List.class); | ||
| _compare(input1, result1); | ||
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| assertToken(JsonToken.START_ARRAY, p.nextToken()); | ||
| List<?> result2 = MAPPER.readValue(p, List.class); | ||
| _compare(input2, result2); | ||
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| assertToken(JsonToken.START_ARRAY, p.nextToken()); | ||
| List<?> result3 = MAPPER.readValue(p, List.class); | ||
| _compare(Arrays.asList(input3), result3); | ||
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| assertNull(p.nextToken()); | ||
| p.close(); | ||
| } | ||
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| // And the ultimate case of sequence of arrays of records | ||
| public void testEmployeeArraySequence() throws Exception | ||
| { | ||
| AvroSchema schema = MAPPER.schemaFrom(EMPLOYEE_ARRAY_SCHEMA_JSON); | ||
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| Employee boss = new Employee("Bossman", 55, new String[] { "[email protected]" }, null); | ||
| Employee peon1 = new Employee("Worker#1", 24, new String[] { "[email protected]" }, boss); | ||
| Employee peon2 = new Employee("Worker#2", 43, new String[] { "[email protected]" }, boss); | ||
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| // First: write a sequence of 3 root-level Employee Objects | ||
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| ByteArrayOutputStream b = new ByteArrayOutputStream(); | ||
| SequenceWriter sw = MAPPER.writer(schema) | ||
| .writeValues(b); | ||
| sw.write(new Employee[] { boss, peon1, peon2 }); | ||
| int curr = b.size(); | ||
| sw.write(new Employee[] { peon2, boss }); | ||
| int diff = b.size() - curr; | ||
| if (diff == 0) { | ||
| fail("Should have output more bytes for second entry, did not, total: "+curr); | ||
| } | ||
| sw.close(); | ||
|
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| // 18-Jan-2017, tatu: This get bit tricky just because `readValues()` doesn't | ||
| // quite know whether to advance cursor to START_ARRAY or not, and we must | ||
| // instead prepare things... and use direct bind | ||
|
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| JsonParser p = MAPPER.getFactory().createParser(b.toByteArray()); | ||
| p.setSchema(schema); | ||
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| assertToken(JsonToken.START_ARRAY, p.nextToken()); | ||
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| Employee[] result1 = MAPPER.readValue(p, Employee[].class); | ||
| assertEquals(3, result1.length); | ||
| assertEquals("Bossman", result1[0].name); | ||
| assertEquals("Worker#2", result1[2].name); | ||
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| assertToken(JsonToken.START_ARRAY, p.nextToken()); | ||
| Employee[] result2 = MAPPER.readValue(p, Employee[].class); | ||
| assertEquals(2, result2.length); | ||
| assertEquals("Bossman", result2[1].name); | ||
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| assertNull(p.nextToken()); | ||
| p.close(); | ||
| } | ||
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| private void _compare(List<String> input, List<?> result) { | ||
| assertEquals(input, result); | ||
| } | ||
| } |
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