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package org.glassfish.jersey.server.internal.inject;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.util.List;
import java.util.Set;
import java.util.SortedSet;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.ext.ParamConverter;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.internal.util.collection.ClassTypePair;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.Parameter;
/**
* Implementation of {@link MultivaluedParameterExtractorProvider}. For each
* parameter, the implementation obtains a {@link ParamConverter param converter} instance via
* {@link ParamConverterFactory} and creates the proper
* {@link MultivaluedParameterExtractor multivalued parameter extractor}.
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
@Singleton
final class MultivaluedParameterExtractorFactory implements MultivaluedParameterExtractorProvider {
private final ParamConverterFactory paramConverterFactory;
/**
* Create new multivalued map parameter extractor factory.
*
* @param stringReaderFactory string readers factory.
*/
@Inject
public MultivaluedParameterExtractorFactory(ParamConverterFactory stringReaderFactory) {
this.paramConverterFactory = stringReaderFactory;
}
@Override
public MultivaluedParameterExtractor<?> getWithoutDefaultValue(Parameter p) {
return process(
paramConverterFactory,
null,
p.getRawType(),
p.getType(),
p.getAnnotations(),
p.getSourceName());
}
@Override
public MultivaluedParameterExtractor<?> get(Parameter p) {
return process(
paramConverterFactory,
p.getDefaultValue(),
p.getRawType(),
p.getType(),
p.getAnnotations(),
p.getSourceName());
}
@SuppressWarnings("unchecked")
private MultivaluedParameterExtractor<?> process(
ParamConverterFactory paramConverterFactory,
String defaultValue,
Class<?> rawType,
Type type,
Annotation[] annotations,
String parameterName) {
if (rawType == List.class || rawType == Set.class || rawType == SortedSet.class) {
// Get the generic type of the list
// If none default to String
final List<ClassTypePair> ctps = ReflectionHelper.getTypeArgumentAndClass(type);
ClassTypePair ctp = (ctps.size() == 1) ? ctps.get(0) : null;
if (ctp == null || ctp.rawClass() == String.class) {
return StringCollectionExtractor.getInstance(
rawType, parameterName, defaultValue);
} else {
final ParamConverter<?> converter = paramConverterFactory.getConverter(ctp.rawClass(), ctp.type(), annotations);
if (converter == null) {
return null;
}
try {
return CollectionExtractor.getInstance(rawType, converter, parameterName, defaultValue);
} catch (ExtractorException e) {
throw e;
} catch (Exception e) {
throw new ProcessingException("Could not process parameter type " + rawType, e);
}
}
}
final ParamConverter<?> converter = paramConverterFactory.getConverter(rawType, type, annotations);
if (converter != null) {
try {
return new SingleValueExtractor(converter, parameterName, defaultValue);
} catch (ExtractorException e) {
throw e;
} catch (Exception e) {
throw new ProcessingException("Could not process parameter type " + rawType, e);
}
}
if (rawType == String.class) {
return new SingleStringValueExtractor(parameterName, defaultValue);
} else if (rawType.isPrimitive()) {
// Convert primitive to wrapper class
rawType = PrimitiveMapper.primitiveToClassMap.get(rawType);
if (rawType == null) {
// Primitive type not supported
return null;
}
// Check for static valueOf(String )
Method valueOf = AccessController.doPrivileged(ReflectionHelper.getValueOfStringMethodPA(rawType));
if (valueOf != null) {
try {
Object defaultDefaultValue = PrimitiveMapper.primitiveToDefaultValueMap.get(rawType);
return new PrimitiveValueOfExtractor(valueOf, parameterName, defaultValue, defaultDefaultValue);
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.DEFAULT_COULD_NOT_PROCESS_METHOD(defaultValue, valueOf));
}
}
}
return null;
}
}