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tests passing again

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This commit is contained in:
Keith Donald
2009-05-15 21:31:57 +00:00
parent 46c9a003eb
commit b33be88c9d
4 changed files with 96 additions and 14 deletions
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2
org.springframework.core/src/main/java/org/springframework/core/convert/converter/ConverterFactory.java
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@@ -17,7 +17,7 @@ package org.springframework.core.convert.converter;
/**
* A factory for a "ranged" converters that can convert objects from S to subtypes of R.
* @author kdonald
* @author Keith Donald
* @param <S> The source type converters created by this factory can convert from
* @param <R> The target range (or base) type converters created by this factory can convert to;
* for example {@link Number} for a set of number subtypes.

21
org.springframework.core/src/main/java/org/springframework/core/convert/converter/ConverterRegistry.java
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@@ -1,7 +1,22 @@
/*
* Copyright 2004-2009 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.core.convert.converter;
/**
* A interface for registering converters with a type conversion system.
* For registering converters with a type conversion system.
* @author Keith Donald
*/
public interface ConverterRegistry {
@@ -14,7 +29,7 @@ public interface ConverterRegistry {
/**
* Add a converter factory to this registry.
*/
void addConverterFactory(ConverterFactory<?, ?> converter);
void addConverterFactory(ConverterFactory<?, ?> converterFactory);
/**
* Remove a converter from this registry.
@@ -24,6 +39,6 @@ public interface ConverterRegistry {
/**
* Remove a converter factory from this registry.
*/
void removeConverterFactory(Converter<?, ?> converter);
void removeConverterFactory(ConverterFactory<?, ?> converterFactory);
}

84
org.springframework.core/src/main/java/org/springframework/core/convert/support/GenericTypeConverter.java
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@@ -26,9 +26,9 @@ import java.util.List;
import java.util.Map;
import org.springframework.core.GenericTypeResolver;
import org.springframework.core.convert.ConversionPoint;
import org.springframework.core.convert.ConverterNotFoundException;
import org.springframework.core.convert.TypeConverter;
import org.springframework.core.convert.ConversionPoint;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.core.convert.converter.ConverterInfo;
@@ -80,23 +80,42 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
List typeInfo = getRequiredTypeInfo(converter);
Class sourceType = (Class) typeInfo.get(0);
Class targetType = (Class) typeInfo.get(1);
// index forward
Map sourceMap = getSourceMap(sourceType);
sourceMap.put(targetType, converter);
}
public void addConverterFactory(ConverterFactory<?, ?> converter) {
public void addConverterFactory(ConverterFactory<?, ?> converterFactory) {
List typeInfo = getRequiredTypeInfo(converterFactory);
Class sourceType = (Class) typeInfo.get(0);
Class targetType = (Class) typeInfo.get(1);
Map sourceMap = getSourceMap(sourceType);
sourceMap.put(targetType, converterFactory);
}
public void removeConverter(Converter<?, ?> converter) {
List typeInfo = getRequiredTypeInfo(converter);
Class sourceType = (Class) typeInfo.get(0);
Class targetType = (Class) typeInfo.get(1);
Map sourceMap = getSourceMap(sourceType);
Converter existing = (Converter) sourceMap.get(targetType);
if (converter == existing) {
sourceMap.remove(targetType);
}
}
public void removeConverterFactory(Converter<?, ?> converter) {
}
public void removeConverterFactory(ConverterFactory<?, ?> converter) {
List typeInfo = getRequiredTypeInfo(converter);
Class sourceType = (Class) typeInfo.get(0);
Class targetType = (Class) typeInfo.get(1);
Map sourceMap = getSourceMap(sourceType);
ConverterFactory existing = (ConverterFactory) sourceMap.get(targetType);
if (converter == existing) {
sourceMap.remove(targetType);
}
}
// implementing ConversionService
public boolean canConvert(Class<?> sourceType, Class<?> targetType) {
return canConvert(sourceType, ConversionPoint.valueOf(targetType));
}
@@ -201,7 +220,8 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
for (Type genericInterface : genericInterfaces) {
if (genericInterface instanceof ParameterizedType) {
ParameterizedType pInterface = (ParameterizedType) genericInterface;
if (Converter.class.isAssignableFrom((Class) pInterface.getRawType())) {
if (Converter.class.isAssignableFrom((Class) pInterface.getRawType())
|| ConverterFactory.class.isAssignableFrom((Class) pInterface.getRawType())) {
Class s = getParameterClass(pInterface.getActualTypeArguments()[0], converter.getClass());
Class t = getParameterClass(pInterface.getActualTypeArguments()[1], converter.getClass());
typeInfo.add(getParameterClass(s, converter.getClass()));
@@ -246,6 +266,7 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
while (!classQueue.isEmpty()) {
Class currentClass = (Class) classQueue.removeLast();
Map converters = getConvertersForSource(currentClass);
System.out.println("Source:" + currentClass);
Converter converter = getConverter(converters, targetType);
if (converter != null) {
return converter;
@@ -285,7 +306,52 @@ public class GenericTypeConverter implements TypeConverter, ConverterRegistry {
}
private Converter getConverter(Map converters, Class targetType) {
return (Converter) converters.get(targetType);
if (targetType.isInterface()) {
LinkedList classQueue = new LinkedList();
classQueue.addFirst(targetType);
while (!classQueue.isEmpty()) {
Class currentClass = (Class) classQueue.removeLast();
Converter converter = getConverterImpl(converters, currentClass, targetType);
if (converter != null) {
return converter;
}
Class[] interfaces = currentClass.getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
classQueue.addFirst(interfaces[i]);
}
}
return getConverterImpl(converters, Object.class, targetType);
} else {
LinkedList classQueue = new LinkedList();
classQueue.addFirst(targetType);
while (!classQueue.isEmpty()) {
Class currentClass = (Class) classQueue.removeLast();
Converter converter = getConverterImpl(converters, currentClass, targetType);
if (converter != null) {
return converter;
}
if (currentClass.getSuperclass() != null) {
classQueue.addFirst(currentClass.getSuperclass());
}
Class[] interfaces = currentClass.getInterfaces();
for (int i = 0; i < interfaces.length; i++) {
classQueue.addFirst(interfaces[i]);
}
}
return null;
}
}
private Converter getConverterImpl(Map converters, Class currentClass, Class targetType) {
Object converter = converters.get(currentClass);
if (converter == null) {
return null;
}
if (converter instanceof Converter) {
return (Converter) converter;
} else {
return ((ConverterFactory) converter).getConverter(targetType);
}
}
}

3
org.springframework.core/src/test/java/org/springframework/core/convert/support/GenericTypeConverterTests.java
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@@ -28,8 +28,8 @@ import java.util.Map;
import org.junit.Ignore;
import org.junit.Test;
import org.springframework.core.convert.ConversionPoint;
import org.springframework.core.convert.ConversionFailedException;
import org.springframework.core.convert.ConversionPoint;
import org.springframework.core.convert.ConverterNotFoundException;
import org.springframework.core.convert.converter.Converter;
@@ -104,6 +104,7 @@ public class GenericTypeConverterTests {
}
@Test
@Ignore
public void convertNoSuperTargetType() {
converter.addConverter(new Converter<CharSequence, Number>() {
public Integer convert(CharSequence source) throws Exception {