/**
 * 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.impl;

import java.io.IOException;
import java.io.InputStream;

import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

import org.apache.cxf.io.DelegatingInputStream;
import org.apache.cxf.message.Message;

public class HttpServletRequestFilter extends HttpServletRequestWrapper {

    private Message m;
    public HttpServletRequestFilter(HttpServletRequest request, Message message) {
        super(request);
        m = message;
    }
    @Override
    public ServletInputStream getInputStream() throws IOException {
        InputStream is = m.getContent(InputStream.class);
        if (is instanceof DelegatingInputStream) {
            is = ((DelegatingInputStream)is).getInputStream();
        }
        if (is instanceof ServletInputStream) {
            return (ServletInputStream)is;
        } else {
            return super.getInputStream();
        }
    }
}

