/*
 * 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.
 */

#ifndef AXIS2_MSG_H
#define AXIS2_MSG_H

/**
 * @defgroup axis2_msg message
 * @ingroup axis2_desc
 * message represents a message in a WSDL. It captures SOAP headers related to
 * a given message, the direction as well as the phases to be invoked along
 * the flow. Based on the message direction, there could be only one flow
 * associated with a message.
 * @{
 */

/**
 * @file axis2_msg.h
 */

#include <axutil_param_container.h>
#include <axis2_op.h>
#include <axutil_array_list.h>
#include <axis2_description.h>
#include <axis2_phase_meta.h>

    /** Message of IN flow */
#define AXIS2_MSG_IN            "in"

    /** Message of OUT flow */
#define AXIS2_MSG_OUT           "out"

    /** Message of IN FAULT flow */
#define AXIS2_MSG_IN_FAULT      "InFaultMessage"

    /** Message of OUT FAULT flow */
#define AXIS2_MSG_OUT_FAULT     "OutFaultMessage"

#ifdef __cplusplus
extern "C"
{
#endif

    /** Type name for struct axis2_msg */
    typedef struct axis2_msg axis2_msg_t;

    /**
     * Creates message struct instance.
     * @param env pointer to environment struct
     * @return pointer to newly created message
     */
    AXIS2_EXTERN axis2_msg_t *AXIS2_CALL
    axis2_msg_create(
        const axutil_env_t * env);

    /**
     * Frees message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return void
     */
    AXIS2_EXTERN void AXIS2_CALL
    axis2_msg_free(
        axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Adds a parameter.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param param pointer to parameter, message assumes ownership of 
     * parameter
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_add_param(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        axutil_param_t * param);

    /**
     * Gets the named parameter.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param name parameter name string
     * @return pointer to parameter corresponding to the same name, returns
     * a reference, not a cloned copy
     */
    AXIS2_EXTERN axutil_param_t *AXIS2_CALL
    axis2_msg_get_param(
        const axis2_msg_t * msg,
        const axutil_env_t * env,
        const axis2_char_t * name);

    /**
     * Gets all parameters stored in message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return pointer to list of parameters, returns a reference, not a 
     * cloned copy
     */
    AXIS2_EXTERN axutil_array_list_t *AXIS2_CALL
    axis2_msg_get_all_params(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Checks if the named parameter is locked.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param param_name parameter name string
     * @return AXIS2_TRUE if the parameter is locked, else AXIS2_FALSE    
     */
    AXIS2_EXTERN axis2_bool_t AXIS2_CALL
    axis2_msg_is_param_locked(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        const axis2_char_t * param_name);

    /**
     * Sets parent. Parent of a message is of type operation.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param op pointer to parent operation, message does not assume 
     * ownership of parent
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_set_parent(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        axis2_op_t * op);

    /**
     * Gets parent. Parent of a message is of type operation.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return pointer to parent operation, returns a reference, not a 
     * cloned copy
     */
    AXIS2_EXTERN axis2_op_t *AXIS2_CALL
    axis2_msg_get_parent(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Gets flow of execution associated with the message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return pointer to array list containing the list of phases 
     * representing the flow
     */
    AXIS2_EXTERN axutil_array_list_t *AXIS2_CALL
    axis2_msg_get_flow(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Sets flow of execution associated with the message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param flow pointer to array list of phases representing the flow,
     * message assumes ownership of flow
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_set_flow(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        axutil_array_list_t * flow);

    /**
     * Gets direction of message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return direction string
     */
    AXIS2_EXTERN const axis2_char_t *AXIS2_CALL
    axis2_msg_get_direction(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Sets direction of message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param direction pointer to direction
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_set_direction(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        const axis2_char_t * direction);

    /**
     * Gets QName representing message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return pointer to QName, returns a reference, not a cloned copy
     */
    AXIS2_EXTERN const axutil_qname_t *AXIS2_CALL
    axis2_msg_get_element_qname(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Sets QName representing message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param element_qname pointer to QName representing message, this 
     * function creates a clone of QName
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_set_element_qname(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        const axutil_qname_t * element_qname);

    /**
     * Gets message name.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return message name string.
     */
    AXIS2_EXTERN const axis2_char_t *AXIS2_CALL
    axis2_msg_get_name(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Sets message name.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @param name message name string
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_set_name(
        axis2_msg_t * msg,
        const axutil_env_t * env,
        const axis2_char_t * name);

    /**
     * Gets base description.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return pointer to base description struct
     */
    AXIS2_EXTERN axis2_desc_t *AXIS2_CALL
    axis2_msg_get_base(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Gets container of parameters belonging to message.
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return returns container of parameters
     * @sa axutil_param_container
     */
    AXIS2_EXTERN axutil_param_container_t *AXIS2_CALL
    axis2_msg_get_param_container(
        const axis2_msg_t * msg,
        const axutil_env_t * env);

    /**
     * Increments the reference count to this oject 
     * @param msg pointer to message
     * @param env pointer to environment struct
     * @return AXIS2_SUCCESS on success, else AXIS2_FAILURE
     */
    AXIS2_EXTERN axis2_status_t AXIS2_CALL
    axis2_msg_increment_ref(
        axis2_msg_t * msg,
        const axutil_env_t * env);

    /** @} */
#ifdef __cplusplus
}
#endif
#endif                          /* AXIS2_MSG_H */