/**
* 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.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import org.apache.abdera.Abdera;
import org.apache.abdera.model.Document;
import org.apache.abdera.model.Element;
import org.apache.abdera.parser.Parser;
import org.apache.abdera.parser.ParserOptions;
import org.apache.abdera.writer.Writer;
public abstract class AbstractAtomProvider<T extends Element>
implements MessageBodyWriter<T>, MessageBodyReader<T> {
private static final Abdera ATOM_ENGINE = new Abdera();
private boolean autodetectCharset;
private boolean formattedOutput;
public long getSize(T element, Class<?> type, Type genericType, Annotation[] annotations, MediaType mt) {
return -1;
}
public void writeTo(T element, Class<?> clazz, Type type, Annotation[] a,
MediaType mt, MultivaluedMap<String, Object> headers, OutputStream os)
throws IOException {
if (MediaType.APPLICATION_JSON_TYPE.isCompatible(mt)) {
Writer w = ATOM_ENGINE.getWriterFactory().getWriter("json");
element.writeTo(w, os);
} else if (formattedOutput) {
Writer w = ATOM_ENGINE.getWriterFactory().getWriter("prettyxml");
element.writeTo(w, os);
} else {
element.writeTo(os);
}
}
public T readFrom(Class<T> clazz, Type t, Annotation[] a, MediaType mt,
MultivaluedMap<String, String> headers, InputStream is)
throws IOException {
Parser parser = ATOM_ENGINE.getParser();
synchronized (parser) {
ParserOptions options = parser.getDefaultParserOptions();
if (options != null) {
options.setAutodetectCharset(autodetectCharset);
}
}
Document<T> doc = parser.parse(is);
return doc.getRoot();
}
public void setFormattedOutput(boolean formattedOutput) {
this.formattedOutput = formattedOutput;
}
public void setAutodetectCharset(boolean autodetectCharset) {
this.autodetectCharset = autodetectCharset;
}
}