/*
* $Id: ContentTypeInterceptor.java 666756 2008-06-11 18:11:00Z hermanns $
*
* 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.struts2.rest;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.interceptor.Interceptor;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.rest.handler.ContentTypeHandler;
import javax.servlet.http.HttpServletRequest;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
/**
* Uses the content handler to apply the request body to the action
*/
public class ContentTypeInterceptor implements Interceptor {
private static final long serialVersionUID = 1L;
ContentTypeHandlerManager selector;
@Inject
public void setContentTypeHandlerSelector(ContentTypeHandlerManager sel) {
this.selector = sel;
}
public void destroy() {}
public void init() {}
public String intercept(ActionInvocation invocation) throws Exception {
HttpServletRequest request = ServletActionContext.getRequest();
ContentTypeHandler handler = selector.getHandlerForRequest(request);
Object target = invocation.getAction();
if (target instanceof ModelDriven) {
target = ((ModelDriven)target).getModel();
}
if (request.getContentLength() > 0) {
InputStream is = (InputStream) request.getInputStream();
InputStreamReader reader = new InputStreamReader(is);
handler.toObject((Reader) reader, target);
}
return invocation.invoke();
}
}