/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.jaxrs.provider;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import javax.ws.rs.core.Context;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import org.apache.cxf.aegis.AegisContext;
public abstract class AbstractAegisProvider
implements MessageBodyReader<Object>, MessageBodyWriter<Object> {
private static Map<Class<?>, AegisContext> classContexts = new WeakHashMap<Class<?>, AegisContext>();
@Context protected ContextResolver<AegisContext> resolver;
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] anns) {
return isSupported(type, genericType, anns);
}
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations) {
return isSupported(type, genericType, annotations);
}
public long getSize(Object o) {
return -1;
}
protected AegisContext getAegisContext(Class<?> type, Type genericType) {
if (resolver != null) {
AegisContext context = resolver.getContext(type);
// it's up to the resolver to keep its contexts in a map
if (context != null) {
return context;
}
}
return getClassContext(type);
}
private AegisContext getClassContext(Class<?> type) {
synchronized (classContexts) {
AegisContext context = classContexts.get(type);
if (context == null) {
context = new AegisContext();
context.setWriteXsiTypes(true); // needed, since we know no element/type maps.
context.setReadXsiTypes(true);
Set<Class<?>> rootClasses = new HashSet<Class<?>>();
rootClasses.add(type);
context.setRootClasses(rootClasses);
context.initialize();
classContexts.put(type, context);
}
return context;
}
}
/**
* For Aegis, it's not obvious to me how we'd decide that a type was hopeless.
* @param type
* @param genericType
* @param annotations
* @return
*/
protected boolean isSupported(Class<?> type, Type genericType, Annotation[] annotations) {
return true;
}
}