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This commit is contained in:
Keith Donald
2010-04-19 20:35:57 +00:00
parent 86906d1b4d
commit e21a1c5a61
1 changed files with 23 additions and 8 deletions
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31
org.springframework.core/src/test/java/org/springframework/core/convert/support/GenericConversionServiceTests.java
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@@ -203,16 +203,15 @@ public class GenericConversionServiceTests {
@Test
public void testPerformance1() {
GenericConversionService conversionService = ConversionServiceFactory.createDefaultConversionService();
StopWatch watch = new StopWatch("conversionPerformance");
StopWatch watch = new StopWatch("integer->string conversionPerformance");
watch.start("convert 4,000,000 with conversion service");
for (int i = 0; i < 4000000; i++) {
conversionService.convert(3, String.class);
}
watch.stop();
watch.start("convert 4,000,000 with converter directly");
ObjectToStringConverter converter = new ObjectToStringConverter();
watch.start("convert 4,000,000 manually");
for (int i = 0; i < 4000000; i++) {
converter.convert(3, TypeDescriptor.valueOf(Integer.class), TypeDescriptor.valueOf(String.class));
new Integer(3).toString();
}
watch.stop();
System.out.println(watch.prettyPrint());
@@ -221,8 +220,8 @@ public class GenericConversionServiceTests {
@Test
public void testPerformance2() throws Exception {
GenericConversionService conversionService = ConversionServiceFactory.createDefaultConversionService();
StopWatch watch = new StopWatch("conversionPerformance");
watch.start("convert 4,000,000");
StopWatch watch = new StopWatch("list<string> -> list<integer> conversionPerformance");
watch.start("convert 4,000,000 with conversion service");
List<String> source = new LinkedList<String>();
source.add("1");
source.add("2");
@@ -232,6 +231,14 @@ public class GenericConversionServiceTests {
conversionService.convert(source, TypeDescriptor.forObject(source), td);
}
watch.stop();
watch.start("convert 4,000,000 manually");
for (int i = 0; i < 4000000; i++) {
List<Integer> target = new ArrayList<Integer>(source.size());
for (String element : source) {
target.add(Integer.valueOf(element));
}
}
watch.stop();
System.out.println(watch.prettyPrint());
}
@@ -240,8 +247,8 @@ public class GenericConversionServiceTests {
@Test
public void testPerformance3() throws Exception {
GenericConversionService conversionService = ConversionServiceFactory.createDefaultConversionService();
StopWatch watch = new StopWatch("conversionPerformance");
watch.start("convert 4,000,000");
StopWatch watch = new StopWatch("map<string, string> -> map<string, integer> conversionPerformance");
watch.start("convert 4,000,000 with conversion service");
Map<String, String> source = new HashMap<String, String>();
source.put("1", "1");
source.put("2", "2");
@@ -251,6 +258,14 @@ public class GenericConversionServiceTests {
conversionService.convert(source, TypeDescriptor.forObject(source), td);
}
watch.stop();
watch.start("convert 4,000,000 manually");
for (int i = 0; i < 4000000; i++) {
Map<String, Integer> target = new HashMap<String, Integer>(source.size());
for (Map.Entry<String, String> entry : source.entrySet()) {
target.put(entry.getKey(), Integer.valueOf(entry.getValue()));
}
}
watch.stop();
System.out.println(watch.prettyPrint());
}