samples/server/secconv_echo/echo_skeleton.c

/*
 * 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.
 */
#include <axis2_svc_skeleton.h>
#include "echo.h"
#include <axutil_array_list.h>
#include <axis2_msg_ctx.h>
#include <stdio.h>

int AXIS2_CALL
echo_free(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env);

/*
 * This method invokes the right service method
 */
axiom_node_t* AXIS2_CALL
echo_invoke(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env,
        axiom_node_t *node,
        axis2_msg_ctx_t *msg_ctx);


int AXIS2_CALL
echo_init(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env);

axiom_node_t* AXIS2_CALL
echo_on_fault(axis2_svc_skeleton_t *svc_skeli,
        const axutil_env_t *env, axiom_node_t *node);

static const axis2_svc_skeleton_ops_t echo_svc_skeleton_ops_var = {
    echo_init,
    echo_invoke,
    echo_on_fault,
    echo_free
};


/*Create function */
axis2_svc_skeleton_t *
axis2_echo_create(const axutil_env_t *env)
{
    axis2_svc_skeleton_t *svc_skeleton = NULL;
    /* Allocate memory for the structs */
    svc_skeleton = AXIS2_MALLOC(env->allocator,
            sizeof(axis2_svc_skeleton_t));

    svc_skeleton->ops = AXIS2_MALLOC(
                env->allocator, sizeof(axis2_svc_skeleton_ops_t));

    svc_skeleton->ops = &echo_svc_skeleton_ops_var;

    svc_skeleton->func_array = NULL;
    /* Assign function pointers */

    return svc_skeleton;
}

/* Initialize the service */
int AXIS2_CALL
echo_init(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env)
{
    svc_skeleton->func_array = axutil_array_list_create(env, 0);
    /* Add the implemented operation names of the service to
     * the array list of functions 
     */
    axutil_array_list_add(svc_skeleton->func_array, env, "echoString");
    /* Any initialization stuff of echo service should go here */
    return AXIS2_SUCCESS;
}

/*
 * This method invokes the right service method
 */
axiom_node_t* AXIS2_CALL
echo_invoke(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env,
        axiom_node_t *node,
        axis2_msg_ctx_t *msg_ctx)
{
    /* Invoke the business logic.
     * Depending on the function name invoke the correct impl method.
     */

    if (node)
    {
        if (axiom_node_get_node_type(node, env) == AXIOM_ELEMENT)
        {
            axiom_element_t *element = NULL;
            element =
                (axiom_element_t *) axiom_node_get_data_element(node, env);
            if (element)
            {
                axis2_char_t *op_name =
                    axiom_element_get_localname(element, env);
                if (op_name)
                {
                    if (axutil_strcmp(op_name, "RequestSecurityToken") == 0)
                    {
                        axiom_node_t* return_node = NULL;
                        return_node = secconv_echo_sts_request_security_token(env, node, msg_ctx);
                        if(return_node)
                            return return_node;
                        else
                            echo_on_fault(svc_skeleton, env, node);
                    }
                    else
                        return axis2_echo_echo(env, node, msg_ctx);
                }
            }
        }
    }

    printf("secure conversation service ERROR: invalid OM parameters in request\n");
    return echo_on_fault(svc_skeleton, env, node);
    
}

/* On fault, handle the fault */
axiom_node_t* AXIS2_CALL
echo_on_fault(axis2_svc_skeleton_t *svc_skeli,
        const axutil_env_t *env, axiom_node_t *node)
{
    /* Here we are just setting a simple error message inside an element
     * called 'EchoServiceError' 
     */
    axiom_node_t *error_node = NULL;
    axiom_node_t *text_node = NULL;
    axiom_element_t *error_ele = NULL;
    
	error_ele = axiom_element_create(env, NULL, "EchoServiceError", NULL,  &error_node);
    axiom_element_set_text(error_ele, env, "Echo service failed ", text_node);
    return error_node;
}

/* Free the resources used */
int AXIS2_CALL
echo_free(axis2_svc_skeleton_t *svc_skeleton,
        const axutil_env_t *env)
{
    /* Free the function array */
    if (svc_skeleton->func_array)
    {
        axutil_array_list_free(svc_skeleton->func_array, env);
        svc_skeleton->func_array = NULL;
    }


    /* Free the service skeleton */
    if (svc_skeleton)
    {
        AXIS2_FREE(env->allocator, svc_skeleton);
        svc_skeleton = NULL;
    }

    return AXIS2_SUCCESS;
}


/**
 * Following block distinguish the exposed part of the dll.
 */
AXIS2_EXPORT int
axis2_get_instance(axis2_svc_skeleton_t **inst,
        const axutil_env_t *env)
{
    *inst = axis2_echo_create(env);
    if (!(*inst))
    {
        return AXIS2_FAILURE;
    }

    return AXIS2_SUCCESS;
}

AXIS2_EXPORT int
axis2_remove_instance(axis2_svc_skeleton_t *inst,
        const axutil_env_t *env)
{
    axis2_status_t status = AXIS2_FAILURE;
    if (inst)
    {
        status = AXIS2_SVC_SKELETON_FREE(inst, env);
    }
    return status;
}