/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* 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.
*/

#ifndef AXIS2_HTTP_RESPONSE_WRITER_H
#define AXIS2_HTTP_RESPONSE_WRITER_H

/**
 * @defgroup axis2_http_response_writer http response writer 
 * @ingroup axis2_core_trans_http
 * @{
 */

/**
 * @file axis2_http_response_writer.h
 * @brief axis2 Response Writer
 */

#include <axis2_const.h>
#include <axis2_defines.h>
#include <axis2_env.h>
#include <axis2_stream.h>

#ifdef __cplusplus
extern "C"
{
#endif

    /** Type name for struct axis2_http_response_writer_ops */
    typedef struct axis2_http_response_writer_ops axis2_http_response_writer_ops_t;
    /** Type name for struct axis2_http_response_writer */
    typedef struct axis2_http_response_writer axis2_http_response_writer_t;


    /**
     * HTTP Response Writer ops struct
     * Encapsulator struct for ops of axis2_http_response_writer
     */
    struct axis2_http_response_writer_ops
    {
        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         */
        axis2_char_t *(AXIS2_CALL *
                get_encoding)(
                    const axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                close)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                flush)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @param c
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                write_char)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env,
                    char c);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @param buf pointer to buf
         * @param offset
         * @param len
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                write_buf)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env,
                    char *buf,
                    int offset,
                    axis2_ssize_t len);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @param str pointer to str
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                print_str)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env,
                    const char *str);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @param i
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                print_int)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env,
                    int i);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @param str pointer to str
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                println_str)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env,
                    const char *str);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                println)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env);

        /**
         * @param response_writer pointer to response writer
         * @param env pointer to environment struct
         * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
         */
        axis2_status_t (AXIS2_CALL *
                free)(
                    axis2_http_response_writer_t *response_writer,
                    const axis2_env_t *env);
    };

    /**
     * axis2 http response writer
     */
    struct axis2_http_response_writer
    {
        /** operations of axis2 http response writer */
        axis2_http_response_writer_ops_t *ops;
    };


    /**
     * @param env pointer to environment struct
     * @param stream pointer to stream
     */
    AXIS2_EXTERN axis2_http_response_writer_t *AXIS2_CALL
    axis2_http_response_writer_create (
        const axis2_env_t *env,
        axis2_stream_t *stream);

    /**
     * @param env pointer to environment struct
     * @param stream pointer to stream
     * @param encoding pointer to encoding
     */
    AXIS2_EXTERN axis2_http_response_writer_t *AXIS2_CALL
    axis2_http_response_writer_create_with_encoding(
        const axis2_env_t *env,
        axis2_stream_t *stream,
        const axis2_char_t *encoding);

/************************** Start of function macros **************************/

/** Get encoding.
    @sa axis2_http_response_writer_ops#get_encoding */
#define AXIS2_HTTP_RESPONSE_WRITER_GET_ENCODING(response_writer, env) \
                    ((response_writer)->ops->get_encoding(response_writer, env))

/** Close.
    @sa axis2_http_response_writer_ops#close */
#define AXIS2_HTTP_RESPONSE_WRITER_CLOSE(response_writer, env) \
                    ((response_writer)->ops->close(response_writer, env))

/** Flush.
    @sa axis2_http_response_writer_ops#flush */
#define AXIS2_HTTP_RESPONSE_WRITER_FLUSH(response_writer, env) \
                    ((response_writer)->ops->flush(response_writer, env))

/** Write char.
    @sa axis2_http_response_writer_ops#write_char */
#define AXIS2_HTTP_RESPONSE_WRITER_WRITE_CHAR(response_writer, env, c) \
                    ((response_writer)->ops->write_char(response_writer, env, c))

/** Write buf.
    @sa axis2_http_response_writer_ops#write_buf */
#define AXIS2_HTTP_RESPONSE_WRITER_WRITE_BUF(response_writer, env, buf, offset,\
                    len) ((response_writer)->ops->write_buf(response_writer, \
                    env, buf, offset, len))

/** Print str.
    @sa axis2_http_response_writer_ops#print_str */
#define AXIS2_HTTP_RESPONSE_WRITER_PRINT_STR(response_writer, env, str) \
                    ((response_writer)->ops->print_str(response_writer, env, str))

/** Print int.
    @sa axis2_http_response_writer_ops#print_int */
#define AXIS2_HTTP_RESPONSE_WRITER_PRINT_INT(response_writer, env, i)\
                    ((response_writer)->ops->print_int(response_writer, env))

/** Println str.
    @sa axis2_http_response_writer_ops#println_str */
#define AXIS2_HTTP_RESPONSE_WRITER_PRINTLN_STR(response_writer, env, str) \
                    ((response_writer)->ops->println_str(response_writer, env,\
                    str))

/** Println.
    @sa axis2_http_response_writer_ops#println */
#define AXIS2_HTTP_RESPONSE_WRITER_PRINTLN(response_writer, env) \
                    ((response_writer)->ops->println(response_writer, env))

/** Frees the http response writer.
    @sa axis2_http_response_writer_ops#free */
#define AXIS2_HTTP_RESPONSE_WRITER_FREE(response_writer, env)\
                    ((response_writer)->ops->free(response_writer, env))

/************************** End of function macros ****************************/

/** @} */
#ifdef __cplusplus
}
#endif

#endif                          /* AXIS2_HTTP_RESPONSE_WRITER_H */