cn.wanghaomiao.seimi.http.hc.SeimiRedirectStrategy.java Source code

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Here is the source code for cn.wanghaomiao.seimi.http.hc.SeimiRedirectStrategy.java

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/*
   Copyright 2015 Wang Haomiao<et.tw@163.com>
    
   Licensed 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 cn.wanghaomiao.seimi.http.hc;

import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestWrapper;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.LaxRedirectStrategy;
import org.apache.http.protocol.HttpContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.URI;

/**
 * ?post/redirect/post?????uri
 * ?????
 *
 * @author  [et.tw@163.com]
 */
public class SeimiRedirectStrategy extends LaxRedirectStrategy {
    private Logger logger = LoggerFactory.getLogger(getClass());

    @Override
    public HttpUriRequest getRedirect(HttpRequest request, HttpResponse response, HttpContext context)
            throws ProtocolException {
        URI uri = getLocationURI(request, response, context);
        String method = request.getRequestLine().getMethod();
        if (HttpPost.METHOD_NAME.equalsIgnoreCase(method)) {
            try {
                HttpRequestWrapper httpRequestWrapper = (HttpRequestWrapper) request;
                httpRequestWrapper.setURI(uri);
                httpRequestWrapper.removeHeaders("Content-Length");
                return httpRequestWrapper;
            } catch (Exception e) {
                logger.error("HttpRequestWrapper");
            }
            return new HttpPost(uri);
        } else {
            return new HttpGet(uri);
        }
    }
}