/*
* Copyright 2013 McEvoy Software Ltd.
*
* 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 io.milton.http.annotated;
import io.milton.annotations.ContentType;
import io.milton.common.ContentTypeUtils;
/**
*
* @author brad
*/
public class ContentTypeAnnotationHandler extends AbstractAnnotationHandler {
protected final String[] propertyNames;
public ContentTypeAnnotationHandler(AnnotationResourceFactory outer, String... propNames) {
super(outer, ContentType.class);
this.propertyNames = propNames;
}
public String get(String accepts, AnnoResource res) {
Object source = res.getSource();
try {
ControllerMethod cm = getBestMethod(source.getClass(), null, null, Object.class);
if (cm != null) {
String val = (String) invoke(cm, res, accepts);
return val;
} else {
// look for an annotation on the source itself
java.lang.reflect.Method m = annoResourceFactory.findMethodForAnno(source.getClass(), annoClass);
if (m != null) {
String val = (String) m.invoke(source, accepts);
return val;
}
for (String propName : propertyNames) {
Object s = attemptToReadProperty(source, propName);
if (s != null) {
return (String) s;
}
}
return ContentTypeUtils.findAcceptableContentTypeForName(res.getName(), accepts);
}
} catch (Exception e) {
throw new RuntimeException("Exception executing " + annoClass + " - " + source.getClass(), e);
}
}
}