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found hotspot; added ConverisonServiceFactoryBean

This commit is contained in:
Keith Donald 2009-11-20 14:43:12 +00:00
parent 4024b67926
commit 692b1ef636
8 changed files with 149 additions and 52 deletions
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2
org.springframework.beans/src/test/java/org/springframework/beans/factory/DefaultListableBeanFactoryTests.java
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@ -841,7 +841,7 @@ public final class DefaultListableBeanFactoryTests {
@Test
public void testCustomConverter() {
DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
GenericConversionService conversionService = (GenericConversionService) ConversionServiceFactory.createDefault();
GenericConversionService conversionService = (GenericConversionService) ConversionServiceFactory.createDefaultConversionService();
conversionService.addConverter(new Converter<String, Float>() {
public Float convert(String source) {
try {

97
org.springframework.context/src/main/java/org/springframework/context/support/ConversionServiceFactoryBean.java Normal file
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@ -0,0 +1,97 @@
/*
* Copyright 2002-2009 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
*
* http://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.context.support;
import java.util.Set;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.core.convert.converter.ConverterRegistry;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.core.convert.support.ConversionServiceFactory;
/**
* A factory for a ConversionService that installs default converters appropriate for most environments.
* Set the <code>converters</code> property to supplement or override the default converters.
* @author Keith Donald
* @since 3.0
* @see ConversionServiceFactory#createDefaultConversionService()
*/
public class ConversionServiceFactoryBean implements FactoryBean<ConversionService>, InitializingBean {
private Set<Object> converters;
private ConversionService conversionService;
/**
* Configure the set of custom Converters that should be added.
*/
public void setConverters(Set<Object> converters) {
this.converters = converters;
}
// implementing InitializingBean
public void afterPropertiesSet() {
this.conversionService = createConversionService();
registerConverters(this.converters, (ConverterRegistry) this.conversionService);
}
// implementing FactoryBean
public ConversionService getObject() {
return this.conversionService;
}
public Class<? extends ConversionService> getObjectType() {
return ConversionService.class;
}
public boolean isSingleton() {
return true;
}
// subclassing hooks
/**
* Creates the ConversionService instance returned by this factory bean.
*/
protected ConversionService createConversionService() {
return ConversionServiceFactory.createDefaultConversionService();
}
// internal helpers
private void registerConverters(Set<Object> converters, ConverterRegistry registry) {
if (converters != null) {
for (Object converter : converters) {
if (converter instanceof Converter<?, ?>) {
registry.addConverter((Converter<?, ?>) converter);
} else if (converter instanceof ConverterFactory<?, ?>) {
registry.addConverterFactory((ConverterFactory<?, ?>) converter);
} else if (converter instanceof GenericConverter) {
registry.addGenericConverter((GenericConverter) converter);
} else {
throw new IllegalArgumentException("Each converter must implement one of the Converter, ConverterFactory, or GenericConverter interfaces");
}
}
}
}
}

2
org.springframework.context/src/main/java/org/springframework/format/support/FormattingConversionService.java
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@ -41,7 +41,7 @@ import org.springframework.format.Printer;
*/
public class FormattingConversionService implements FormatterRegistry, ConversionService {
private ConversionService conversionService = ConversionServiceFactory.createDefault();
private ConversionService conversionService = ConversionServiceFactory.createDefaultConversionService();
// implementing FormattingRegistry

28
org.springframework.context/src/main/java/org/springframework/format/support/FormattingConversionServiceFactoryBean.java
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@ -18,6 +18,7 @@ package org.springframework.format.support;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.convert.ConversionService;
import org.springframework.format.FormatterRegistry;
import org.springframework.format.datetime.joda.JodaTimeFormattingConfigurer;
import org.springframework.format.number.NumberFormatAnnotationFormatterFactory;
import org.springframework.format.number.NumberFormatter;
@ -25,18 +26,22 @@ import org.springframework.util.ClassUtils;
/**
* A factory for a FormattingConversionService that installs default formatters for common types such as numbers and datetimes.
* Subclasses may override {@link #installFormatters(FormatterRegistry)} to register custom formatters.
* @author Keith Donald
* @since 3.0
*/
public class FormattingConversionServiceFactoryBean implements FactoryBean<ConversionService>, InitializingBean {
private FormattingConversionService conversionService = new FormattingConversionService();
private static final boolean jodaTimePresent = ClassUtils.isPresent(
"org.joda.time.DateTime", FormattingConversionService.class.getClassLoader());
private FormattingConversionService conversionService;
// implementing InitializingBean
public void afterPropertiesSet() {
installNumberFormatting();
installJodaTimeFormattingIfPresent();
this.conversionService = new FormattingConversionService();
installFormatters(this.conversionService);
}
// implementing FactoryBean
@ -45,7 +50,7 @@ public class FormattingConversionServiceFactoryBean implements FactoryBean<Conve
return this.conversionService;
}
public Class<? extends ConversionService> getObjectType() {
public Class<ConversionService> getObjectType() {
return ConversionService.class;
}
@ -53,16 +58,13 @@ public class FormattingConversionServiceFactoryBean implements FactoryBean<Conve
return true;
}
// internal helpers
// subclassing hooks
private void installNumberFormatting() {
this.conversionService.addFormatterForFieldType(Number.class, new NumberFormatter());
this.conversionService.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
}
private void installJodaTimeFormattingIfPresent() {
if (ClassUtils.isPresent("org.joda.time.DateTime", FormattingConversionService.class.getClassLoader())) {
new JodaTimeFormattingConfigurer().installJodaTimeFormatting(this.conversionService);
protected void installFormatters(FormatterRegistry registry) {
registry.addFormatterForFieldType(Number.class, new NumberFormatter());
registry.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
if (jodaTimePresent) {
new JodaTimeFormattingConfigurer().installJodaTimeFormatting(registry);
}
}

14
org.springframework.core/src/main/java/org/springframework/core/convert/support/ConversionServiceFactory.java
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@ -25,26 +25,14 @@ import org.springframework.core.convert.ConversionService;
*/
public final class ConversionServiceFactory {
private static ConversionService DEFAULT_INSTANCE;
private ConversionServiceFactory() {
}
/**
* Get the shared default ConversionService.
*/
public static synchronized ConversionService getDefault() {
if (DEFAULT_INSTANCE == null) {
DEFAULT_INSTANCE = createDefault();
}
return DEFAULT_INSTANCE;
}
/**
* Create a new default ConversionService prototype that can be safely modified.
*/
public static ConversionService createDefault() {
public static ConversionService createDefaultConversionService() {
GenericConversionService conversionService = new GenericConversionService();
conversionService.addGenericConverter(new ArrayToArrayConverter(conversionService));
conversionService.addGenericConverter(new ArrayToCollectionConverter(conversionService));

38
org.springframework.core/src/test/java/org/springframework/core/convert/support/DefaultConversionTests.java
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@ -48,25 +48,7 @@ import org.springframework.core.convert.converter.Converter;
public class DefaultConversionTests {
private ConversionService conversionService = ConversionServiceFactory.getDefault();
@Test
@SuppressWarnings("unchecked")
public void testUnmodifiableListConversion() {
List<String> stringList = new ArrayList<String>();
stringList.add("foo");
stringList.add("bar");
List<String> frozenList = Collections.unmodifiableList(stringList);
List<String> converted = conversionService.convert(frozenList, List.class);
// The converted list should contain all the elements in the original list
Assert.assertEquals(frozenList, converted);
// Looks like it was supposed to be a copy (but CollectionToCollectionConverter
// doesn't work that way right now). Commented out (DS).
// Assert.assertNotSame(frozenList, converted);
}
private ConversionService conversionService = ConversionServiceFactory.createDefaultConversionService();
@Test
public void testStringToCharacter() {
@ -740,4 +722,22 @@ public class DefaultConversionTests {
}
}
@Test
@SuppressWarnings("unchecked")
public void testUnmodifiableListConversion() {
List<String> stringList = new ArrayList<String>();
stringList.add("foo");
stringList.add("bar");
List<String> frozenList = Collections.unmodifiableList(stringList);
List<String> converted = conversionService.convert(frozenList, List.class);
// The converted list should contain all the elements in the original list
Assert.assertEquals(frozenList, converted);
// TODO Looks like it was supposed to be a copy (but CollectionToCollectionConverter
// doesn't work that way right now). Commented out (DS).
// Assert.assertNotSame(frozenList, converted);
}
}

12
org.springframework.expression/src/main/java/org/springframework/expression/spel/support/StandardTypeConverter.java
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@ -37,10 +37,12 @@ import org.springframework.util.Assert;
*/
public class StandardTypeConverter implements TypeConverter {
private static ConversionService DEFAULT_INSTANCE;
private final ConversionService conversionService;
public StandardTypeConverter() {
this.conversionService = ConversionServiceFactory.getDefault();
this.conversionService = getDefaultConversionService();
}
public StandardTypeConverter(ConversionService conversionService) {
@ -64,4 +66,12 @@ public class StandardTypeConverter implements TypeConverter {
}
}
private ConversionService getDefaultConversionService() {
synchronized(this) {
if (DEFAULT_INSTANCE == null) {
DEFAULT_INSTANCE = ConversionServiceFactory.createDefaultConversionService();
}
}
return DEFAULT_INSTANCE;
}
}

2
org.springframework.expression/src/test/java/org/springframework/expression/spel/ExpressionTestsUsingCoreConversionService.java
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@ -99,7 +99,7 @@ public class ExpressionTestsUsingCoreConversionService extends ExpressionTestCas
*/
private static class TypeConvertorUsingConversionService implements TypeConverter {
private final ConversionService service = ConversionServiceFactory.createDefault();
private final ConversionService service = ConversionServiceFactory.createDefaultConversionService();
public boolean canConvert(Class<?> sourceType, Class<?> targetType) {
return this.service.canConvert(sourceType, targetType);