| /* |
| * 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_om_children_iterator.h> |
| |
| /************** function prototypes *************************************/ |
| |
| axis2_status_t AXIS2_CALL |
| axis2_om_children_iterator_free(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env); |
| |
| axis2_status_t AXIS2_CALL |
| axis2_om_children_iterator_remove(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env); |
| |
| axis2_bool_t AXIS2_CALL |
| axis2_om_children_iterator_has_next(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env); |
| |
| axis2_om_node_t* AXIS2_CALL |
| axis2_om_children_iterator_next(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env); |
| |
| /*************** end function prototypes **********************************/ |
| |
| typedef struct axis2_om_children_iterator_impl_t |
| { |
| axis2_om_children_iterator_t iterator; |
| axis2_om_node_t *current_child; |
| axis2_om_node_t *last_child; |
| axis2_bool_t next_called; |
| axis2_bool_t remove_called; |
| }axis2_om_children_iterator_impl_t; |
| |
| /***************** end impl struct ****************************************/ |
| |
| #define AXIS2_INTF_TO_IMPL(iterator) \ |
| ((axis2_om_children_iterator_impl_t *)iterator) |
| |
| /**************** end macro ***********************************************/ |
| |
| |
| |
| AXIS2_DECLARE( axis2_om_children_iterator_t *) |
| axis2_om_children_iterator_create(axis2_env_t **env, |
| axis2_om_node_t *current_child) |
| { |
| axis2_om_children_iterator_impl_t *iterator_impl = NULL; |
| AXIS2_ENV_CHECK(env, NULL); |
| |
| iterator_impl = (axis2_om_children_iterator_impl_t *)AXIS2_MALLOC( |
| (*env)->allocator, |
| sizeof(axis2_om_children_iterator_impl_t)); |
| |
| if(!iterator_impl) |
| { |
| AXIS2_ERROR_SET((*env)->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE); |
| return NULL; |
| } |
| |
| iterator_impl->current_child = NULL; |
| iterator_impl->last_child = NULL; |
| |
| iterator_impl->next_called = AXIS2_FALSE; |
| iterator_impl->remove_called = AXIS2_FALSE; |
| |
| iterator_impl->iterator.ops = NULL; |
| iterator_impl->iterator.ops = |
| (axis2_om_children_iterator_ops_t*)AXIS2_MALLOC((*env)->allocator, |
| sizeof(axis2_om_children_iterator_ops_t)); |
| |
| if(!(iterator_impl->iterator.ops)) |
| { |
| AXIS2_OM_CHILDREN_ITERATOR_FREE(&(iterator_impl->iterator), env); |
| AXIS2_ERROR_SET((*env)->error, AXIS2_ERROR_NO_MEMORY, AXIS2_FAILURE); |
| return NULL; |
| } |
| |
| iterator_impl->current_child = current_child; |
| iterator_impl->iterator.ops->free_fn = axis2_om_children_iterator_free; |
| iterator_impl->iterator.ops->remove = axis2_om_children_iterator_remove; |
| iterator_impl->iterator.ops->has_next = axis2_om_children_iterator_has_next; |
| iterator_impl->iterator.ops->next = axis2_om_children_iterator_next; |
| return &(iterator_impl->iterator); |
| } |
| |
| |
| axis2_status_t AXIS2_CALL |
| axis2_om_children_iterator_free(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env) |
| { |
| AXIS2_ENV_CHECK(env, AXIS2_FAILURE); |
| if(iterator->ops) |
| AXIS2_FREE((*env)->allocator, iterator->ops); |
| |
| AXIS2_FREE((*env)->allocator, AXIS2_INTF_TO_IMPL(iterator)); |
| return AXIS2_SUCCESS; |
| } |
| |
| axis2_status_t AXIS2_CALL |
| axis2_om_children_iterator_remove(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env) |
| { |
| axis2_om_children_iterator_impl_t *iterator_impl = NULL; |
| AXIS2_ENV_CHECK(env, AXIS2_FAILURE); |
| iterator_impl = AXIS2_INTF_TO_IMPL(iterator); |
| |
| if(!(iterator_impl->next_called)) |
| return AXIS2_FAILURE; |
| if(iterator_impl->remove_called) |
| return AXIS2_FAILURE; |
| |
| iterator_impl->remove_called = AXIS2_TRUE; |
| |
| if(!(iterator_impl->last_child)) |
| return AXIS2_FAILURE; |
| AXIS2_OM_NODE_DETACH(iterator_impl->last_child, env); |
| return AXIS2_SUCCESS; |
| } |
| |
| axis2_bool_t AXIS2_CALL |
| axis2_om_children_iterator_has_next(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env) |
| { |
| axis2_om_children_iterator_impl_t *iterator_impl = NULL; |
| AXIS2_ENV_CHECK(env, AXIS2_FAILURE); |
| iterator_impl = AXIS2_INTF_TO_IMPL(iterator); |
| |
| return iterator_impl->current_child ? AXIS2_TRUE : AXIS2_FALSE; |
| } |
| |
| axis2_om_node_t* AXIS2_CALL |
| axis2_om_children_iterator_next(axis2_om_children_iterator_t *iterator, |
| axis2_env_t **env) |
| { |
| axis2_om_children_iterator_impl_t *iterator_impl = NULL; |
| AXIS2_ENV_CHECK(env, NULL); |
| iterator_impl = AXIS2_INTF_TO_IMPL(iterator); |
| |
| iterator_impl->next_called = AXIS2_TRUE; |
| iterator_impl->remove_called = AXIS2_FALSE; |
| if(iterator_impl->current_child) |
| { |
| iterator_impl->last_child = iterator_impl->current_child; |
| iterator_impl->current_child = AXIS2_OM_NODE_GET_NEXT_SIBLING( |
| iterator_impl->current_child, env); |
| return iterator_impl->last_child; |
| } |
| return NULL; |
| } |