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BATCH-1306:

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*FieldExtractorLineAggregator now replaces nulls with empty strings before calling doAggregate().
 *PassthroughFieldExtractor no longer replaces nulls.
This commit is contained in:
dhgarrette
2009-06-27 10:02:10 +00:00
parent c7fddc87a8
commit c18c341e7f
7 changed files with 76 additions and 50 deletions
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21
spring-batch-infrastructure/src/test/java/org/springframework/batch/item/file/transform/DelimitedLineAggregatorTests.java
View File

@@ -15,8 +15,9 @@
*/
package org.springframework.batch.item.file.transform;
import static org.junit.Assert.*;
import static org.junit.Assert.assertEquals;
import org.junit.Before;
import org.junit.Test;
/**
@@ -25,7 +26,19 @@ import org.junit.Test;
*/
public class DelimitedLineAggregatorTests {
private DelimitedLineAggregator<String[]> aggregator = new DelimitedLineAggregator<String[]>();
private static DelimitedLineAggregator<String[]> aggregator;
private FieldExtractor<String[]> defaultFieldExtractor = new FieldExtractor<String[]>() {
public Object[] extract(String[] item) {
return item;
}
};
@Before
public void setup() {
aggregator = new DelimitedLineAggregator<String[]>();
aggregator.setFieldExtractor(defaultFieldExtractor);
}
@Test
public void testSetDelimiter() {
@@ -38,4 +51,8 @@ public class DelimitedLineAggregatorTests {
assertEquals("foo,bar", aggregator.aggregate(new String[] { "foo", "bar" }));
}
@Test
public void testAggregateWithNull() {
assertEquals("foo,,bar", aggregator.aggregate(new String[] { "foo", null, "bar" }));
}
}

40
spring-batch-infrastructure/src/test/java/org/springframework/batch/item/file/transform/FormatterLineAggregatorTests.java
View File

@@ -19,6 +19,7 @@ package org.springframework.batch.item.file.transform;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import org.junit.Before;
import org.junit.Test;
/**
@@ -29,7 +30,19 @@ import org.junit.Test;
public class FormatterLineAggregatorTests {
// object under test
private FormatterLineAggregator<String[]> aggregator = new FormatterLineAggregator<String[]>();
private FormatterLineAggregator<String[]> aggregator;
private FieldExtractor<String[]> defaultFieldExtractor = new FieldExtractor<String[]>() {
public Object[] extract(String[] item) {
return item;
}
};
@Before
public void setup() {
aggregator = new FormatterLineAggregator<String[]>();
aggregator.setFieldExtractor(defaultFieldExtractor);
}
/**
* If no ranges are specified, IllegalArgumentException is thrown
@@ -110,17 +123,18 @@ public class FormatterLineAggregatorTests {
aggregator.setMaximumLength(25);
aggregator.setFieldExtractor(new FieldExtractor<String[]>() {
private int[] widths = new int[] {13,12};
private int[] widths = new int[] { 13, 12 };
public Object[] extract(String[] item) {
String[] strings = new String[item.length];
for (int i = 0; i < strings.length; i++) {
strings[i] = item[i];
if (item[i].length()<widths[i]) {
if (item[i].length() < widths[i]) {
StringBuffer buffer = new StringBuffer(strings[i]);
for (int j = 0; j<(widths[i]-item[i].length()+1)/2; j++) {
for (int j = 0; j < (widths[i] - item[i].length() + 1) / 2; j++) {
buffer.append(" ");
}
strings[i] = buffer.toString();
strings[i] = buffer.toString();
}
}
return strings;
@@ -143,17 +157,18 @@ public class FormatterLineAggregatorTests {
aggregator.setMaximumLength(24);
aggregator.setFieldExtractor(new FieldExtractor<String[]>() {
private int[] widths = new int[] {13,11};
private int[] widths = new int[] { 13, 11 };
public Object[] extract(String[] item) {
String[] strings = new String[item.length];
for (int i = 0; i < strings.length; i++) {
strings[i] = item[i];
if (item[i].length()<widths[i]) {
if (item[i].length() < widths[i]) {
StringBuffer buffer = new StringBuffer(strings[i]);
for (int j = 0; j<widths[i]-item[i].length(); j++) {
for (int j = 0; j < widths[i] - item[i].length(); j++) {
buffer.append(".");
}
strings[i] = buffer.toString();
strings[i] = buffer.toString();
}
}
return strings;
@@ -181,8 +196,9 @@ public class FormatterLineAggregatorTests {
*/
@Test
public void testAggregateNullArgument() {
String[] args = { null };
aggregator.setFormat("%3s");
assertEquals(" ", aggregator.aggregate(args));
String[] args = { "foo", null, "bar" };
aggregator.setFormat("%3s%3s%3s");
assertEquals("foo bar", aggregator.aggregate(args));
}
}

4
spring-batch-infrastructure/src/test/java/org/springframework/batch/item/file/transform/PassThroughFieldExtractorTests.java
View File

@@ -39,7 +39,7 @@ public class PassThroughFieldExtractorTests {
public void testExtractArray() {
PassThroughFieldExtractor<String[]> extractor = new PassThroughFieldExtractor<String[]>();
Object[] result = extractor.extract(new String[] { "a", "b", null, "d" });
assertTrue(Arrays.equals(new Object[] { "a", "b", "", "d" }, result));
assertTrue(Arrays.equals(new Object[] { "a", "b", null, "d" }, result));
}
@Test
@@ -53,6 +53,6 @@ public class PassThroughFieldExtractorTests {
public void testExtractCollection() {
PassThroughFieldExtractor<List<String>> extractor = new PassThroughFieldExtractor<List<String>>();
Object[] result = extractor.extract(Arrays.asList("a", "b", null, "d"));
assertTrue(Arrays.equals(new Object[] { "a", "b", "", "d" }, result));
assertTrue(Arrays.equals(new Object[] { "a", "b", null, "d" }, result));
}
}