diff options
Diffstat (limited to 'axiom/src/om/om_children_qname_iterator.c')
| -rw-r--r-- | axiom/src/om/om_children_qname_iterator.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/axiom/src/om/om_children_qname_iterator.c b/axiom/src/om/om_children_qname_iterator.c new file mode 100644 index 0000000..d508a9e --- /dev/null +++ b/axiom/src/om/om_children_qname_iterator.c @@ -0,0 +1,190 @@ +/* + * 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_children_qname_iterator.h> +#include <axiom_element.h> + +struct axiom_children_qname_iterator +{ + axiom_node_t *current_child; + axiom_node_t *last_child; + axis2_bool_t next_called; + axis2_bool_t remove_called; + axutil_qname_t *given_qname; + axis2_bool_t need_to_move_forward; + axis2_bool_t matching_node_found; + +}; + +AXIS2_EXTERN axiom_children_qname_iterator_t *AXIS2_CALL +axiom_children_qname_iterator_create( + const axutil_env_t * env, + axiom_node_t * current_child, + axutil_qname_t * given_qname) +{ + axiom_children_qname_iterator_t *iterator = NULL; + + AXIS2_ENV_CHECK(env, NULL); + AXIS2_PARAM_CHECK(env->error, current_child, NULL); + + iterator = (axiom_children_qname_iterator_t *)AXIS2_MALLOC(env->allocator, + sizeof(axiom_children_qname_iterator_t)); + + if(!iterator) + { + AXIS2_ERROR_SET(env->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE); + return NULL; + } + + iterator->current_child = NULL; + iterator->last_child = NULL; + iterator->need_to_move_forward = AXIS2_TRUE; + iterator->matching_node_found = AXIS2_FALSE; + iterator->next_called = AXIS2_FALSE; + iterator->remove_called = AXIS2_FALSE; + iterator->given_qname = NULL; + + iterator->current_child = current_child; + if(given_qname) + { + iterator->given_qname = axutil_qname_clone(given_qname, env); + if(!(iterator->given_qname)) + { + axiom_children_qname_iterator_free(iterator, env); + return NULL; + } + } + + return iterator; +} + +AXIS2_EXTERN void AXIS2_CALL +axiom_children_qname_iterator_free( + axiom_children_qname_iterator_t * iterator, + const axutil_env_t * env) +{ + AXIS2_ENV_CHECK(env, void); + + if(iterator->given_qname) + { + axutil_qname_free(iterator->given_qname, env); + } + AXIS2_FREE(env->allocator, iterator); + return; +} + +AXIS2_EXTERN axis2_status_t AXIS2_CALL +axiom_children_qname_iterator_remove( + axiom_children_qname_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)) + { + AXIS2_ERROR_SET(env->error, AXIS2_ERROR_ITERATOR_NEXT_METHOD_HAS_NOT_YET_BEEN_CALLED, + AXIS2_FAILURE); + return AXIS2_FAILURE; + } + if(iterator->remove_called) + { + AXIS2_ERROR_SET(env->error, AXIS2_ERROR_ITERATOR_REMOVE_HAS_ALREADY_BEING_CALLED, + AXIS2_FAILURE); + 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_children_qname_iterator_has_next( + axiom_children_qname_iterator_t * iterator, + const axutil_env_t * env) +{ + while(iterator->need_to_move_forward) + { + if(iterator->current_child) + { + axiom_element_t *om_element = NULL; + axutil_qname_t *element_qname = NULL; + + if(axiom_node_get_node_type(iterator->current_child, env) == AXIOM_ELEMENT) + { + om_element = (axiom_element_t *)axiom_node_get_data_element( + iterator-> current_child, env); + } + + if(om_element) + { + element_qname = axiom_element_get_qname(om_element, env, iterator->current_child); + } + + if(om_element && axutil_qname_equals(element_qname, env, iterator->given_qname)) + { + iterator->matching_node_found = AXIS2_TRUE; + iterator->need_to_move_forward = AXIS2_FALSE; + } + else + { + iterator->current_child = axiom_node_get_next_sibling(iterator->current_child, env); + if(iterator->current_child) + { + iterator->need_to_move_forward = AXIS2_TRUE; + iterator->matching_node_found = AXIS2_TRUE; + } + else + { + iterator->need_to_move_forward = AXIS2_FALSE; + iterator->matching_node_found = AXIS2_FALSE; + } + } + } + else + { + iterator->need_to_move_forward = AXIS2_FALSE; + } + } + return iterator->matching_node_found; + +} + +AXIS2_EXTERN axiom_node_t *AXIS2_CALL +axiom_children_qname_iterator_next( + axiom_children_qname_iterator_t * iterator, + const axutil_env_t * env) +{ + AXIS2_ENV_CHECK(env, NULL); + + iterator->need_to_move_forward = AXIS2_TRUE; + iterator->matching_node_found = AXIS2_FALSE; + iterator->next_called = AXIS2_TRUE; + iterator->remove_called = AXIS2_FALSE; + + iterator->last_child = iterator->current_child; + if(iterator->current_child) + { + iterator->current_child = axiom_node_get_next_sibling(iterator->current_child, env); + } + return iterator->last_child; +} + |