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// ------------------------------------------------------------------------------
// Copyright (c) 2017 Microsoft Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sub-license, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// ------------------------------------------------------------------------------

package com.microsoft.graph.http;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;

/**
 * An HTTP connection with a remote server
 */
public interface IConnection {

    /**
     * Follow 3XX series redirects
     *
     * @param followRedirects true to follow redirects, false otherwise
     */
    void setFollowRedirects(final boolean followRedirects);

    /**
     * Adds a header to the connection (Must be done before reading/writing)
     *
     * @param headerName  the header name
     * @param headerValue the header value
     */
    void addRequestHeader(String headerName, String headerValue);

    /**
     * Gets the stream to write to the request
     *
     * @return the output stream to write onto
     * @throws IOException if something goes wrong while getting the stream
     */
    OutputStream getOutputStream() throws IOException;

    /**
     * Gets the stream to read to the response
     *
     * @return the input stream to read from
     * @throws IOException if something goes wrong while getting the stream
     */
    InputStream getInputStream() throws IOException;

    /**
     * Gets the response code for the request
     *
     * @return the HTTP status code
     * @throws IOException if something goes wrong while getting the response code
     */
    int getResponseCode() throws IOException;

    /**
     * Get the response message
     *
     * @return the response message
     * @throws IOException if something goes wrong while getting the response message
     */
    String getResponseMessage() throws IOException;

    /**
     * Closes this connection, and all streams become inaccessible
     */
    void close();

    /**
     * Gets the response headers for this connection
     *
     * @return the map of headers
     */
    Map getHeaders();
    
    Map> getResponseHeaders();

    /**
     * Gets the HTTP request method
     *
     * @return the request method
     */
    String getRequestMethod();

    /**
     * Returns the Content-Length
     *
     * @return the content length
     */
    int getContentLength();

    /**
     * Set the Content-Length header
     *
     * @param length the length of content
     */
    void setContentLength(final int length);
    
    /**
     * Set the connect timeout on the connection
     *
     * @param connectTimeoutMilliseconds the connection timeout in milliseconds
     */
    void setConnectTimeout(final int connectTimeoutMilliseconds);

    /**
     * Set the read timeout on the connection
     *
     * @param readTimeoutMilliseconds the read timeout in milliseconds
     */
    void setReadTimeout(final int readTimeoutMilliseconds);
}