org.apache.cxf.jaxrs.ext.SystemQueryHandler Maven / Gradle / Ivy
/**
* 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.ext;
import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import org.apache.cxf.jaxrs.impl.UriInfoImpl;
import org.apache.cxf.jaxrs.model.ClassResourceInfo;
import org.apache.cxf.message.Message;
public class SystemQueryHandler implements RequestHandler {
private static final String CONTENT_QUERY = "_type";
private static final String METHOD_QUERY = "_method";
private static final Map SHORTCUTS;
static {
SHORTCUTS = new HashMap();
SHORTCUTS.put("json", "application/json");
SHORTCUTS.put("text", "text/*");
SHORTCUTS.put("xml", "application/xml");
// more to come
}
public Response handleRequest(Message m, ClassResourceInfo resourceClass) {
MultivaluedMap queries = new UriInfoImpl(m, null).getQueryParameters();
handleTypeQuery(m, queries);
handleMethodQuery(m, queries);
return null;
}
private void handleMethodQuery(Message m, MultivaluedMap queries) {
String method = queries.getFirst(METHOD_QUERY);
if (method != null) {
m.put(Message.HTTP_REQUEST_METHOD, method);
}
}
private void handleTypeQuery(Message m, MultivaluedMap queries) {
String type = queries.getFirst(CONTENT_QUERY);
if (type != null) {
if (SHORTCUTS.containsKey(type)) {
type = SHORTCUTS.get(type);
}
updateAcceptTypeHeader(m, type);
}
}
private void updateAcceptTypeHeader(Message m, String anotherValue) {
m.put(Message.ACCEPT_CONTENT_TYPE, anotherValue);
}
}