-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
FlatFileItemWriterBuilderTests.java
342 lines (262 loc) · 9.62 KB
/
FlatFileItemWriterBuilderTests.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
/*
* Copyright 2016-2021 the original author or authors.
*
* Licensed 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.springframework.batch.item.file.builder;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.Arrays;
import org.junit.Test;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.batch.item.file.FlatFileItemWriter;
import org.springframework.batch.item.file.transform.PassThroughLineAggregator;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.test.util.ReflectionTestUtils;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Michael Minella
* @author Mahmoud Ben Hassine
* @author Drummond Dawson
* @author Glenn Renfro
*/
public class FlatFileItemWriterBuilderTests {
// reads the output file to check the result
private BufferedReader reader;
@Test(expected = IllegalArgumentException.class)
public void testMissingLineAggregator() {
new FlatFileItemWriterBuilder<Foo>()
.build();
}
@Test(expected = IllegalStateException.class)
public void testMultipleLineAggregators() throws IOException {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
new FlatFileItemWriterBuilder<Foo>()
.name("itemWriter")
.resource(output)
.delimited()
.delimiter(";")
.names("foo", "bar")
.formatted()
.format("%2s%2s")
.names("foo", "bar")
.build();
}
@Test
public void test() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.lineAggregator(new PassThroughLineAggregator<>())
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$Foo{first=1, second=2, third='3'}$Foo{first=4, second=5, third='6'}$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testDelimitedOutputWithDefaultDelimiter() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.delimited()
.names("first", "second", "third")
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$1,2,3$4,5,6$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testDelimitedOutputWithEmptyDelimiter() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.delimited()
.delimiter("")
.names("first", "second", "third")
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$123$456$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testDelimitedOutputWithDefaultFieldExtractor() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.delimited()
.delimiter(";")
.names("first", "second", "third")
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$1;2;3$4;5;6$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testDelimitedOutputWithCustomFieldExtractor() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.delimited()
.delimiter(" ")
.fieldExtractor(item -> new Object[] {item.getFirst(), item.getThird()})
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$1 3$4 6$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testFormattedOutputWithDefaultFieldExtractor() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.formatted()
.format("%2s%2s%2s")
.names("first", "second", "third")
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$ 1 2 3$ 4 5 6$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testFormattedOutputWithCustomFieldExtractor() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.lineSeparator("$")
.formatted()
.format("%3s%3s")
.fieldExtractor(item -> new Object[] {item.getFirst(), item.getThird()})
.encoding("UTF-16LE")
.headerCallback(writer1 -> writer1.append("HEADER"))
.footerCallback(writer12 -> writer12.append("FOOTER"))
.build();
ExecutionContext executionContext = new ExecutionContext();
writer.open(executionContext);
writer.write(Arrays.asList(new Foo(1, 2, "3"), new Foo(4, 5, "6")));
writer.close();
assertEquals("HEADER$ 1 3$ 4 6$FOOTER", readLine("UTF-16LE", output));
}
@Test
public void testFlags() throws Exception {
Resource output = new FileSystemResource(File.createTempFile("foo", "txt"));
FlatFileItemWriter<Foo> writer = new FlatFileItemWriterBuilder<Foo>()
.name("foo")
.resource(output)
.shouldDeleteIfEmpty(true)
.shouldDeleteIfExists(false)
.saveState(false)
.forceSync(true)
.append(true)
.transactional(false)
.lineAggregator(new PassThroughLineAggregator<>())
.build();
assertFalse((Boolean) ReflectionTestUtils.getField(writer, "saveState"));
assertTrue((Boolean) ReflectionTestUtils.getField(writer, "append"));
assertFalse((Boolean) ReflectionTestUtils.getField(writer, "transactional"));
assertTrue((Boolean) ReflectionTestUtils.getField(writer, "shouldDeleteIfEmpty"));
assertFalse((Boolean) ReflectionTestUtils.getField(writer, "shouldDeleteIfExists"));
assertTrue((Boolean) ReflectionTestUtils.getField(writer, "forceSync"));
assertEquals( Charset.defaultCharset().name(), ReflectionTestUtils.getField(writer, "encoding"));
}
private String readLine(String encoding, Resource outputFile ) throws IOException {
if (reader == null) {
reader = new BufferedReader(new InputStreamReader(outputFile.getInputStream(), encoding));
}
return reader.readLine();
}
public static class Foo {
private int first;
private int second;
private String third;
public Foo(int first, int second, String third) {
this.first = first;
this.second = second;
this.third = third;
}
public int getFirst() {
return first;
}
public void setFirst(int first) {
this.first = first;
}
public int getSecond() {
return second;
}
public void setSecond(int second) {
this.second = second;
}
public String getThird() {
return third;
}
public void setThird(String third) {
this.third = third;
}
@Override
public String toString() {
return "Foo{" +
"first=" + first +
", second=" + second +
", third='" + third + '\'' +
'}';
}
}
}