//--------------------------------------------------------------------------------------------------
le_result_t ni_GoToParent
(
ni_IteratorRef_t iteratorRef ///< The iterator object to access.
)
//--------------------------------------------------------------------------------------------------
{
// Update our path.
if (le_pathIter_Append(iteratorRef->pathIterRef, "..") == LE_UNDERFLOW)
{
// Looks like there are no more parents in the chain.
return LE_NOT_FOUND;
}
// Now, if we have a current node, just get it's parent node. Otherwise make an attempt to see
// if the requested parent node exists.
if (iteratorRef->currentNodeRef != NULL)
{
iteratorRef->currentNodeRef = tdb_GetNodeParent(iteratorRef->currentNodeRef);
LE_ASSERT(iteratorRef->currentNodeRef != NULL);
}
else
{
// Make an attempt to get the new current node.
iteratorRef->currentNodeRef = ni_GetNode(iteratorRef, "");
}
return LE_OK;
}
//--------------------------------------------------------------------------------------------------
le_result_t ni_GetNodeName
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
char* destBufferPtr, ///< The buffer to copy string data into.
size_t bufferMax ///< The maximum size of the string buffer.
)
//--------------------------------------------------------------------------------------------------
{
// Make sure we were given a buffer.
if (bufferMax == 0)
{
return LE_OVERFLOW;
}
// If we have a current node, get it's name. Otherwise we'll have to get the name from the
// path.
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef != NULL)
{
return tdb_GetNodeName(nodeRef, destBufferPtr, bufferMax);
}
// Clear out the target buffer and attempt get the last named segment on our path string. If
// that fails then we're on the root node and just return an empty string.
*destBufferPtr = 0;
if (le_pathIter_GoToEnd(iteratorRef->pathIterRef) != LE_OK)
{
return le_pathIter_GetCurrentNode(iteratorRef->pathIterRef, destBufferPtr, bufferMax);
}
return LE_OK;
}
//--------------------------------------------------------------------------------------------------
void ni_DeleteNode
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* newPathPtr ///< Optional, can be used to specify a node relative to the
///< current one.
)
//--------------------------------------------------------------------------------------------------
{
// Delete the requested node, and then see if we can find our way back to where we were.
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, newPathPtr);
if (nodeRef)
{
tdb_DeleteNode(nodeRef);
iteratorRef->currentNodeRef = ni_GetNode(iteratorRef, "");
}
}
//--------------------------------------------------------------------------------------------------
le_cfg_nodeType_t ni_GetNodeType
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr ///< Optional. If specified, this path can refer to another node
///< in the tree.
)
//--------------------------------------------------------------------------------------------------
{
return tdb_GetNodeType(ni_GetNode(iteratorRef, pathPtr));
}
//--------------------------------------------------------------------------------------------------
le_result_t ni_GetNodeName
(
ni_IteratorRef_t iteratorRef, ///< [IN] The iterator object to access.
const char* pathPtr, ///< [IN] Optional path to another node in the tree.
char* destBufferPtr, ///< [OUT] The buffer to copy string data into.
size_t bufferMax ///< [IN] The maximum size of the string buffer.
)
//--------------------------------------------------------------------------------------------------
{
// Make sure we were given a buffer.
if (bufferMax == 0)
{
return LE_OVERFLOW;
}
// If we have a current node, get it's name. Otherwise we'll have to get the name from the
// path.
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
// If the iterator was closed during the GetNode, then that means there was a fatal problem
// encountered.
if (iteratorRef->isTerminated)
{
// At this point we know the client has been disconnected. So just return fault so that the
// calling code can know this.
return LE_FAULT;
}
if (nodeRef != NULL)
{
return tdb_GetNodeName(nodeRef, destBufferPtr, bufferMax);
}
// Looks like a node wasn't found. So, try to get the name of the node from the sub-path. Or
// if a sub-path was not specified, get the name from the iterator's base path.
*destBufferPtr = '\0';
if (strcmp(pathPtr, "") != 0)
{
le_pathIter_Ref_t subPathIter = le_pathIter_CreateForUnix(pathPtr);
le_result_t result = le_pathIter_GoToEnd(iteratorRef->pathIterRef);
if (result == LE_OK)
{
result = le_pathIter_GetCurrentNode(subPathIter, destBufferPtr, bufferMax);
}
le_pathIter_Delete(subPathIter);
return result;
}
LE_ASSERT(le_pathIter_GoToEnd(iteratorRef->pathIterRef) == LE_OK);
return le_pathIter_GetCurrentNode(iteratorRef->pathIterRef, destBufferPtr, bufferMax);
}
// -------------------------------------------------------------------------------------------------
void le_cfgAdmin_ExportTree
(
le_cfgAdmin_ServerCmdRef_t commandRef, ///< [IN] Reference used to generate a reply for this
///< request.
le_cfg_IteratorRef_t externalRef, ///< [IN] Write iterator that is being used for the
///< export.
const char* filePathPtr, ///< [IN] Export the tree data to the this file.
const char* nodePathPtr ///< [IN] Where in the tree should this export happen?
///< Leave as an empty string to use the iterator's
///< current node.
)
// -------------------------------------------------------------------------------------------------
{
LE_DEBUG("** Exporting a tree from node '%s' into file '%s', using iterator, '%p'.",
nodePathPtr, filePathPtr, externalRef);
ni_IteratorRef_t iteratorRef = GetIteratorFromRef(externalRef);
if (iteratorRef == NULL)
{
le_cfgAdmin_ExportTreeRespond(commandRef, LE_OK);
return;
}
LE_DEBUG("Opening file '%s'.", filePathPtr);
FILE* filePtr = NULL;
filePtr = fopen(filePathPtr, "w+");
if (!filePtr)
{
LE_ERROR("File '%s' could not be opened.", filePathPtr);
le_cfgAdmin_ExportTreeRespond(commandRef, LE_IO_ERROR);
return;
}
LE_DEBUG("Exporting config data.");
le_result_t result = LE_OK;
if (tdb_WriteTreeNode(ni_GetNode(iteratorRef, nodePathPtr), filePtr) != LE_OK)
{
result = LE_FAULT;
}
fclose(filePtr);
le_cfgAdmin_ExportTreeRespond(commandRef, result);
}
//--------------------------------------------------------------------------------------------------
void ni_SetNodeValueString
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
const char* valuePtr ///< Write this value into the tree.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef)
{
tdb_SetValueAsString(nodeRef, valuePtr);
}
}
//--------------------------------------------------------------------------------------------------
void ni_SetEmpty
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* newPathPtr ///< Optional, can be used to specify a node relative to the
///< current one.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, newPathPtr);
if (nodeRef)
{
tdb_SetEmpty(nodeRef);
}
}
//--------------------------------------------------------------------------------------------------
void ni_SetNodeValueBool
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
bool value ///< The value to write.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef)
{
tdb_SetValueAsBool(nodeRef, value);
}
}
//--------------------------------------------------------------------------------------------------
bool ni_NodeExists
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* newPathPtr ///< Optional, can be used to specify a node relative to the
///< current one.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, newPathPtr);
if (nodeRef == NULL)
{
return false;
}
return tdb_GetNodeType(nodeRef) != LE_CFG_TYPE_DOESNT_EXIST;
}
//--------------------------------------------------------------------------------------------------
bool ni_GetNodeValueBool
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
bool defaultValue ///< If the value can not be found, use this one instead.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef == NULL)
{
return defaultValue;
}
return tdb_GetValueAsBool(nodeRef, defaultValue);
}
//--------------------------------------------------------------------------------------------------
bool ni_IsEmpty
(
ni_IteratorRef_t iteratorRef, ///< [IN] The iterator object to access.
const char* newPathPtr ///< [IN] Optional, can be used to specify a node relative to the
///< current one.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, newPathPtr);
if (nodeRef)
{
return tdb_IsNodeEmpty(nodeRef);
}
return true;
}
//--------------------------------------------------------------------------------------------------
le_result_t ni_GetNodeValueString
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
char* destBufferPtr, ///< The buffer to copy string data into.
size_t bufferMax, ///< The maximum size of the string buffer.
const char* defaultPtr ///< If the value can not be found, use this one instead.
)
//--------------------------------------------------------------------------------------------------
{
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef == NULL)
{
return le_utf8_Copy(destBufferPtr, defaultPtr, bufferMax, NULL);
}
return tdb_GetValueAsString(nodeRef, destBufferPtr, bufferMax, defaultPtr);
}
//--------------------------------------------------------------------------------------------------
le_result_t ni_SetNodeName
(
ni_IteratorRef_t iteratorRef, ///< The iterator object to access.
const char* pathPtr, ///< Optional path to another node in the tree.
const char* namePtr ///< The new name to use.
)
//--------------------------------------------------------------------------------------------------
{
// Try to get the node, and if found, set the value.
tdb_NodeRef_t nodeRef = ni_GetNode(iteratorRef, pathPtr);
if (nodeRef)
{
return tdb_SetNodeName(nodeRef, namePtr);
}
// Because this is a write operation, and if the node wasn't found at this point then that means
// there was a problem with the supplied path and ternimiate client was called, so we just
// return LE_OK.
return LE_OK;
}
