modules/core/description/flow.c

/*
 * 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.
 */

#include <axis2_flow.h>

typedef struct axis2_flow_impl
{
    axis2_flow_t flow;

    axis2_array_list_t *list;
}
axis2_flow_impl_t;

#define AXIS2_INTF_TO_IMPL(flow) ((axis2_flow_impl_t *)(flow))

axis2_status_t AXIS2_CALL
axis2_flow_free(
    axis2_flow_t *flow,
    const axis2_env_t *env);

axis2_status_t AXIS2_CALL
axis2_flow_add_handler(
    axis2_flow_t *flow,
    const axis2_env_t *env,
    axis2_handler_desc_t *handler);

axis2_handler_desc_t *AXIS2_CALL
axis2_flow_get_handler(
    const axis2_flow_t *flow,
    const axis2_env_t *env,
    const int index);

int AXIS2_CALL
axis2_flow_get_handler_count(
    const axis2_flow_t *flow,
    const axis2_env_t *env);

AXIS2_EXTERN axis2_flow_t *AXIS2_CALL
axis2_flow_create(
    const axis2_env_t *env)
{
    axis2_flow_impl_t *flow_impl = NULL;

    AXIS2_ENV_CHECK(env, NULL);
    flow_impl = (axis2_flow_impl_t *) AXIS2_MALLOC(env->allocator,
            sizeof(axis2_flow_impl_t));

    if (NULL == flow_impl)
    {
        AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE);
        return NULL;
    }

    flow_impl->list = NULL;
    flow_impl->flow.ops = NULL;

    flow_impl->list = axis2_array_list_create(env, 20);
    if (NULL == flow_impl->list)
    {
        axis2_flow_free(&(flow_impl->flow), env);
        AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE);
        return NULL;
    }

    flow_impl->flow.ops = AXIS2_MALLOC(env->allocator,
            sizeof(axis2_flow_ops_t));
    if (NULL == flow_impl->flow.ops)
    {
        axis2_flow_free(&(flow_impl->flow), env);
        AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE);
        return NULL;
    }

    flow_impl->flow.ops->free =  axis2_flow_free;
    flow_impl->flow.ops->add_handler =  axis2_flow_add_handler;
    flow_impl->flow.ops->get_handler =  axis2_flow_get_handler;
    flow_impl->flow.ops->get_handler_count =  axis2_flow_get_handler_count;

    return &(flow_impl->flow);
}

axis2_status_t AXIS2_CALL
axis2_flow_free(
    axis2_flow_t *flow,
    const axis2_env_t *env)
{
    axis2_flow_impl_t *flow_impl = NULL;

    AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
    flow_impl = AXIS2_INTF_TO_IMPL(flow);

    if (flow_impl->list)
    {
        int i = 0;
        int size = 0;

        size = AXIS2_ARRAY_LIST_SIZE(flow_impl->list, env);
        for (i = 0; i < size; i++)
        {
            axis2_handler_desc_t *handler_desc = NULL;

            handler_desc = (axis2_handler_desc_t *) AXIS2_ARRAY_LIST_GET(
                        flow_impl->list, env, i);
            AXIS2_HANDLER_DESC_FREE(handler_desc, env);
        }
        AXIS2_ARRAY_LIST_FREE(flow_impl->list, env);
        flow_impl->list = NULL;
    }

    if (flow->ops)
    {
        AXIS2_FREE(env->allocator, flow->ops);
        flow->ops = NULL;
    }

    if (flow_impl)
    {
        AXIS2_FREE(env->allocator, flow_impl);
        flow_impl = NULL;
    }

    return AXIS2_SUCCESS;
}

axis2_status_t AXIS2_CALL
axis2_flow_free_void_arg(
    void *flow,
    const axis2_env_t *env)
{
    axis2_flow_t *flow_l = NULL;

    AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
    flow_l = (axis2_flow_t *) flow;
    return axis2_flow_free(flow_l, env);
}

axis2_status_t AXIS2_CALL
axis2_flow_add_handler(
    axis2_flow_t *flow,
    const axis2_env_t *env,
    axis2_handler_desc_t *handler)
{
    axis2_flow_impl_t *flow_impl = NULL;

    AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
    AXIS2_PARAM_CHECK(env->error, handler, AXIS2_FAILURE);

    flow_impl = AXIS2_INTF_TO_IMPL(flow);

    if (!flow_impl->list)
    {
        flow_impl->list = axis2_array_list_create(env, 0);
        if (NULL == flow_impl->list)
        {
            axis2_flow_free(&(flow_impl->flow), env);
            AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE);
            return AXIS2_FAILURE;
        }
    }
    return AXIS2_ARRAY_LIST_ADD(AXIS2_INTF_TO_IMPL(flow)->list, env, handler);
}

axis2_handler_desc_t *AXIS2_CALL
axis2_flow_get_handler(
    const axis2_flow_t *flow,
    const axis2_env_t *env,
    const int index)
{
    AXIS2_ENV_CHECK(env, NULL);

    return AXIS2_ARRAY_LIST_GET(AXIS2_INTF_TO_IMPL(flow)->list, env, index);
}

int AXIS2_CALL
axis2_flow_get_handler_count(
    const axis2_flow_t *flow,
    const axis2_env_t *env)
{
    AXIS2_ENV_CHECK(env, AXIS2_FAILURE);

    return AXIS2_ARRAY_LIST_SIZE(AXIS2_INTF_TO_IMPL(flow)->list, env);
}