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/*
* 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 <axiom_child_element_iterator.h>
struct axiom_child_element_iterator
{
axiom_node_t *current_child;
axiom_node_t *last_child;
axis2_bool_t next_called;
axis2_bool_t remove_called;
};
AXIS2_EXTERN axiom_child_element_iterator_t *AXIS2_CALL
axiom_child_element_iterator_create(
const axutil_env_t * env,
axiom_node_t * current_child)
{
axiom_child_element_iterator_t *iterator = NULL;
AXIS2_ENV_CHECK(env, NULL);
iterator = (axiom_child_element_iterator_t *)AXIS2_MALLOC(env->allocator,
sizeof(axiom_child_element_iterator_t));
if(!iterator)
{
AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE);
return NULL;
}
iterator->current_child = current_child;
iterator->last_child = NULL;
iterator->next_called = AXIS2_FALSE;
iterator->remove_called = AXIS2_FALSE;
return iterator;
}
AXIS2_EXTERN void AXIS2_CALL axiom_child_element_iterator_free(
void *iterator,
const axutil_env_t * env)
{
AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
AXIS2_FREE(env->allocator, iterator);
return;
}
AXIS2_EXTERN axis2_status_t AXIS2_CALL
axiom_child_element_iterator_remove(
axiom_child_element_iterator_t * iterator,
const axutil_env_t * env)
{
AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
AXIS2_PARAM_CHECK(env->error, iterator, AXIS2_FAILURE);
if(!(iterator->next_called))
return AXIS2_FAILURE;
if(iterator->remove_called)
return AXIS2_FAILURE;
iterator->remove_called = AXIS2_TRUE;
if(!(iterator->last_child))
return AXIS2_FAILURE;
axiom_node_free_tree(iterator->last_child, env);
iterator->last_child = NULL;
return AXIS2_SUCCESS;
}
AXIS2_EXTERN axis2_bool_t AXIS2_CALL
axiom_child_element_iterator_has_next(
axiom_child_element_iterator_t * iterator,
const axutil_env_t * env)
{
AXIS2_ENV_CHECK(env, AXIS2_FAILURE);
return (iterator->current_child) ? AXIS2_TRUE : AXIS2_FALSE;
}
AXIS2_EXTERN axiom_node_t *AXIS2_CALL axiom_child_element_iterator_next(
axiom_child_element_iterator_t * iterator,
const axutil_env_t * env)
{
AXIS2_ENV_CHECK(env, NULL);
iterator->next_called = AXIS2_TRUE;
iterator->remove_called = AXIS2_FALSE;
if (iterator->current_child)
{
iterator->last_child = iterator->current_child;
do
{
iterator->current_child =
axiom_node_get_next_sibling(iterator->current_child, env);
}
while (iterator->current_child &&
(axiom_node_get_node_type(iterator->current_child, env)
!= AXIOM_ELEMENT));
return iterator->last_child;
}
return NULL;
}
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