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allow custom converter object manipulation without changing types

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This commit is contained in:
Keith Donald
2008-09-18 21:06:26 +00:00
parent c194e5cd3f
commit 8e3b82e1c9
1 changed files with 57 additions and 2 deletions
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59
spring-binding/src/test/java/org/springframework/binding/convert/service/DefaultConversionServiceTests.java
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@@ -29,12 +29,14 @@ import java.util.Set;
import junit.framework.TestCase;
import org.springframework.binding.convert.ConversionException;
import org.springframework.binding.convert.ConversionExecutionException;
import org.springframework.binding.convert.ConversionExecutor;
import org.springframework.binding.convert.ConversionExecutorNotFoundException;
import org.springframework.binding.convert.converters.Converter;
import org.springframework.binding.convert.converters.FormattedStringToNumber;
import org.springframework.binding.convert.converters.StringToBoolean;
import org.springframework.binding.convert.converters.TwoWayConverter;
import org.springframework.binding.format.DefaultNumberFormatFactory;
/**
@@ -125,6 +127,47 @@ public class DefaultConversionServiceTests extends TestCase {
assertEquals("a string", executor.execute("a string "));
}
public void testRegisterCustomConverterForSameTypeNotCompatibleSource() {
DefaultConversionService service = new DefaultConversionService();
service.addConverter("trimmer", new Trimmer());
try {
service.getConversionExecutor("trimmer", Object.class, String.class);
} catch (ConversionException e) {
}
}
public void testRegisterCustomConverterForSameTypeNotCompatibleTarget() {
DefaultConversionService service = new DefaultConversionService();
service.addConverter("trimmer", new Trimmer());
try {
service.getConversionExecutor("trimmer", String.class, Object.class);
} catch (ConversionException e) {
}
}
public void testRegisterCustomConverterReverseComparsion() {
DefaultConversionService service = new DefaultConversionService();
service.addConverter("princy", new CustomTwoWayConverter());
ConversionExecutor executor = service.getConversionExecutor("princy", Principal.class, String.class);
assertEquals("name", executor.execute(new Principal() {
public String getName() {
return "name";
}
}));
}
public void testRegisterCustomConverterReverseNotCompatibleSource() {
DefaultConversionService service = new DefaultConversionService();
service.addConverter("princy", new CustomTwoWayConverter());
try {
service.getConversionExecutor("trimmer", Principal.class, Object.class);
} catch (ConversionException e) {
}
}
public void testConversionPrimitive() {
DefaultConversionService service = new DefaultConversionService();
ConversionExecutor executor = service.getConversionExecutor(String.class, int.class);
@@ -248,8 +291,14 @@ public class DefaultConversionServiceTests extends TestCase {
private static class CustomConverter implements Converter {
public Object convertSourceToTargetClass(Object source, Class targetClass) throws Exception {
throw new UnsupportedOperationException("Auto-generated method stub");
public Object convertSourceToTargetClass(final Object source, Class targetClass) throws Exception {
return new Principal() {
public String getName() {
return (String) source;
}
};
}
public Class getSourceClass() {
@@ -262,6 +311,12 @@ public class DefaultConversionServiceTests extends TestCase {
}
private static class CustomTwoWayConverter extends CustomConverter implements TwoWayConverter {
public Object convertTargetToSourceClass(Object target, Class sourceClass) throws Exception {
return ((Principal) target).getName();
}
}
private static class Trimmer implements Converter {
public Object convertSourceToTargetClass(Object source, Class targetClass) throws Exception {