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package org.glassfish.jersey.moxy.json.internal;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.inject.Singleton;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Providers;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import javax.xml.bind.Unmarshaller;
import org.eclipse.persistence.internal.core.helper.CoreClassConstants;
import org.eclipse.persistence.jaxb.MarshallerProperties;
import org.eclipse.persistence.jaxb.UnmarshallerProperties;
import org.eclipse.persistence.jaxb.rs.MOXyJsonProvider;
import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.moxy.json.MoxyJsonConfig;
/**
* Jersey specific {@link MOXyJsonProvider} that can be configured via {@code ContextResolver<JsonMoxyConfiguration>} instance.
*
* @author Michal Gajdos
*/
@Singleton
public class ConfigurableMoxyJsonProvider extends MOXyJsonProvider {
private static final Set<String> MARSHALLER_PROPERTY_NAMES;
private static final Set<String> UNMARSHALLER_PROPERTY_NAMES;
static {
MARSHALLER_PROPERTY_NAMES = getPropertyNames(MarshallerProperties.class);
UNMARSHALLER_PROPERTY_NAMES = getPropertyNames(UnmarshallerProperties.class);
}
private static Set<String> getPropertyNames(final Class<?> propertiesClass) {
final Set<String> propertyNames = new HashSet<>();
for (final Field field : AccessController.doPrivileged(ReflectionHelper.getDeclaredFieldsPA(propertiesClass))) {
if (String.class == field.getType() && Modifier.isStatic(field.getModifiers())) {
try {
propertyNames.add((String) field.get(null));
} catch (final IllegalAccessException e) {
// NOOP.
}
}
}
return propertyNames;
}
@Context
private Providers providers;
@Context
private Configuration config;
private MoxyJsonConfig globalConfig;
private MoxyJsonConfig getGlobalConfig() {
if (globalConfig == null) {
globalConfig = new MoxyJsonConfig()
.setMarshallerProperties(getConfigProperties(config, MARSHALLER_PROPERTY_NAMES))
.setUnmarshallerProperties(getConfigProperties(config, UNMARSHALLER_PROPERTY_NAMES));
}
return globalConfig;
}
private Map<String, Object> getConfigProperties(final Configuration config, final Set<String> propertyNames) {
final Map<String, Object> properties = new HashMap<>();
for (final String propertyName : propertyNames) {
final Object property = config.getProperty(propertyName);
if (property != null) {
properties.put(propertyName, property);
}
}
return properties;
}
@Override
protected void preReadFrom(final Class<Object> type, final Type genericType, final Annotation[] annotations,
final MediaType mediaType, final MultivaluedMap<String, String> httpHeaders,
final Unmarshaller unmarshaller) throws JAXBException {
super.preReadFrom(type, genericType, annotations, mediaType, httpHeaders, unmarshaller);
initializeUnmarshaller(unmarshaller);
}
@Override
protected void preWriteTo(final Object object, final Class<?> type, final Type genericType, final Annotation[] annotations,
final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders,
final Marshaller marshaller) throws JAXBException {
super.preWriteTo(object, type, genericType, annotations, mediaType, httpHeaders, marshaller);
initializeMarshaller(marshaller);
}
private void initializeUnmarshaller(final Unmarshaller unmarshaller) throws PropertyException {
for (final Map.Entry<String, Object> property : getProperties(false).entrySet()) {
unmarshaller.setProperty(property.getKey(), property.getValue());
}
}
private void initializeMarshaller(final Marshaller marshaller) throws PropertyException {
for (final Map.Entry<String, Object> property : getProperties(true).entrySet()) {
marshaller.setProperty(property.getKey(), property.getValue());
}
}
private Map<String, Object> getProperties(final boolean forMarshaller) {
final Map<String, Object> properties = new HashMap<>(forMarshaller
? getGlobalConfig().getMarshallerProperties()
: getGlobalConfig().getUnmarshallerProperties());
final ContextResolver<MoxyJsonConfig> contextResolver =
providers.getContextResolver(MoxyJsonConfig.class, MediaType.APPLICATION_JSON_TYPE);
if (contextResolver != null) {
final MoxyJsonConfig jsonConfiguration = contextResolver.getContext(MoxyJsonConfig.class);
if (jsonConfiguration != null) {
properties.putAll(forMarshaller
? jsonConfiguration.getMarshallerProperties() : jsonConfiguration.getUnmarshallerProperties());
}
}
return properties;
}
@Override
public boolean isReadable(final Class<?> type,
final Type genericType,
final Annotation[] annotations,
final MediaType mediaType) {
return !isPrimitiveType(type)
&& super.isReadable(type, genericType, annotations, mediaType);
}
@Override
public boolean isWriteable(final Class<?> type,
final Type genericType,
final Annotation[] annotations,
final MediaType mediaType) {
return !isPrimitiveType(type)
&& super.isWriteable(type, genericType, annotations, mediaType);
}
private boolean isPrimitiveType(final Class<?> type) {
return CoreClassConstants.STRING == type
|| CoreClassConstants.PCHAR == type || CoreClassConstants.CHAR == type
|| CoreClassConstants.PSHORT == type || CoreClassConstants.SHORT == type
|| CoreClassConstants.PINT == type || CoreClassConstants.INTEGER == type
|| CoreClassConstants.PLONG == type || CoreClassConstants.LONG == type
|| CoreClassConstants.PFLOAT == type || CoreClassConstants.FLOAT == type
|| CoreClassConstants.PDOUBLE == type || CoreClassConstants.DOUBLE == type
|| CoreClassConstants.PBOOLEAN == type || CoreClassConstants.BOOLEAN == type
|| CoreClassConstants.PBYTE == type || CoreClassConstants.BYTE == type;
}
}