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/**
 * Copyright 2018 jianggujin (www.jianggujin.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 com.jianggujin.http.response;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.util.List;
import java.util.Map;

import com.jianggujin.http.core.JHttpException;
import com.jianggujin.http.core.JRequest;
import com.jianggujin.http.core.JResponse;

/**
 * 无响应体的响应
 * 
 * @author jianggujin
 *
 */
public class JNoBodyResponse implements JResponse {
    protected int responseCode;
    protected String responseMessage;
    protected Map> headers;
    protected boolean isError;

    public void onComplete(InputStream inputStream, HttpURLConnection conn, JRequest request) throws JHttpException {
        try {
            this.responseCode = conn.getResponseCode();
            this.responseMessage = conn.getResponseMessage();
            this.headers = conn.getHeaderFields();
            this.responseCode = conn.getResponseCode();
            this.isError = responseCode < 200 || responseCode >= 300;
            if (this.isError && !request.ignoreError()) {
                throw new IOException("the http response status[" + responseCode + "] is not OK.");
            }
        } catch (Exception e) {
            throw new JHttpException(e);
        }
    }

    /**
     * 获得响应吗
     * 
     * @return responseCode
     */
    public int getResponseCode() {
        return responseCode;
    }

    /**
     * 获得响应消息
     * 
     * @return responseMessage
     */
    public String getResponseMessage() {
        return responseMessage;
    }

    /**
     * 获得响应头
     * 
     * @return headers
     */
    public Map> getHeaders() {
        return headers;
    }

    /**
     * 获得响应头
     */
    public String getHeader(String name) {
        List headers = this.headers.get(name);
        if (headers != null && !headers.isEmpty())
            return headers.get(0);
        return null;
    }

    /**
     * 是否错误
     * 
     * @return isError
     */
    public boolean isError() {
        return isError;
    }

    /**
     * 获得数据
     * 
     * @return data
     */
    public Object getData() {
        return null;
    }

    public Object getError() {
        return null;
    }

}