/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. 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. For additional information regarding
* copyright in this work, please see the NOTICE file in the top level
* directory of this distribution.
*/
package org.apache.abdera.ext.serializer.impl;
import java.lang.reflect.AccessibleObject;
import org.apache.abdera.ext.serializer.Conventions;
import org.apache.abdera.ext.serializer.ObjectContext;
import org.apache.abdera.ext.serializer.SerializationContext;
import org.apache.abdera.ext.serializer.annotation.HrefLanguage;
import org.apache.abdera.ext.serializer.annotation.Link;
import org.apache.abdera.ext.serializer.annotation.MediaType;
import org.apache.abdera.ext.serializer.annotation.Rel;
import org.apache.abdera.ext.serializer.annotation.Title;
import org.apache.abdera.ext.serializer.annotation.Value;
import org.apache.abdera.util.Constants;
import org.apache.abdera.writer.StreamWriter;
public class LinkSerializer extends ElementSerializer {
public LinkSerializer() {
super(Constants.LINK);
}
protected void process(Object source,
ObjectContext objectContext,
SerializationContext context,
Conventions conventions) {
StreamWriter sw = context.getStreamWriter();
Link _link = objectContext.getAnnotation(Link.class);
String rel = null;
AccessibleObject accessor = objectContext.getAccessor(Rel.class, conventions);
if (accessor != null) {
Object value = eval(accessor, source);
if (value != null)
rel = toString(value);
}
if (rel == null) {
Rel _rel = objectContext.getAnnotation(Rel.class);
if (_rel != null && !_rel.value().equals(DEFAULT)) {
rel = _rel.value();
}
}
if (rel == null && _link != null && !_link.rel().equals(DEFAULT)) {
rel = _link.rel();
}
if (rel != null)
sw.writeAttribute("rel", rel);
String type = null;
accessor = objectContext.getAccessor(MediaType.class, conventions);
if (accessor != null) {
Object value = eval(accessor, source);
if (value != null)
type = toString(value);
}
if (type == null) {
MediaType _type = objectContext.getAnnotation(MediaType.class);
if (_type != null && !_type.value().equals(DEFAULT)) {
type = _type.value();
}
}
if (type == null && _link != null && !_link.type().equals(DEFAULT)) {
type = _link.type();
}
if (type != null)
sw.writeAttribute("type", type);
String title = null;
accessor = objectContext.getAccessor(Title.class, conventions);
if (accessor != null) {
Object value = eval(accessor, source);
if (value != null)
title = toString(value);
}
if (title == null && _link != null && !_link.title().equals(DEFAULT)) {
title = _link.title();
}
if (title != null)
sw.writeAttribute("title", title);
String hreflang = null;
accessor = objectContext.getAccessor(HrefLanguage.class, conventions);
if (accessor != null) {
Object value = eval(accessor, source);
if (value != null)
hreflang = toString(value);
}
if (hreflang == null) {
HrefLanguage _hreflang = objectContext.getAnnotation(HrefLanguage.class);
if (_hreflang != null && !_hreflang.value().equals(DEFAULT)) {
hreflang = _hreflang.value();
}
}
if (hreflang == null && _link != null && !_link.hreflang().equals(DEFAULT)) {
hreflang = _link.hreflang();
}
if (hreflang != null)
sw.writeAttribute("hreflang", hreflang);
String href = null;
accessor = objectContext.getAccessor(Value.class, conventions);
if (accessor != null) {
Object value = eval(accessor, source);
if (value != null)
href = toString(value);
}
if (href == null)
href = toString(source);
if (href != null)
sw.writeAttribute("href", href);
writeAttributes(source, objectContext, context, conventions);
writeExtensions(source, objectContext, context, conventions);
}
}