/**
* Handle event
*
* @param string $msg_hl7 HL7 message
*
* @return DOMDocument|void
*/
function handle($msg_hl7)
{
$this->message = new CHL7v2Message();
$ignored_fields = array();
if ($this->_data_format) {
$configs_format = $this->_data_format->_configs_format;
if ($configs_format->ignore_fields) {
$ignored_fields = preg_split("/\\s*,\\s*/", $configs_format->ignore_fields);
}
$strict = $configs_format->strict_segment_terminator;
$this->message->strict_segment_terminator = $strict;
if ($strict) {
$terminator = $this->getSegmentTerminator($configs_format->segment_terminator);
$this->message->segmentTerminator = $terminator;
}
}
$this->message->ignored_fields = $ignored_fields;
$this->message->parse($msg_hl7);
$dom = $this->message->toXML(get_class($this), false, CApp::$encoding);
$xpath = new CHL7v2MessageXPath($dom);
foreach ($ignored_fields as $_ignore_field) {
$query = "//{$_ignore_field}";
$nodes = $xpath->query($query);
foreach ($nodes as $_node) {
$_node->parentNode->removeChild($_node);
}
}
return $dom;
}
/**
* Query
*
* @param string $nodeName The XPath to the node
* @param DOMNode $contextNode The context node from which the XPath starts
*
* @return DOMNodeList
*/
function query($nodeName, DOMNode $contextNode = null)
{
$xpath = new CHL7v2MessageXPath($contextNode ? $contextNode->ownerDocument : $this);
if ($contextNode) {
return $xpath->query($nodeName, $contextNode);
}
return $xpath->query($nodeName);
}
/**
* Get fields tree
*
* @param array &$_datatypes Datatypes
* @param string $datatype_name Datatype name
* @param string $fullpath_component Fullpath
*
* @return array
*/
function readDataTypeSchema(&$_datatypes, $datatype_name, $fullpath_component)
{
if (array_key_exists($datatype_name, CHDataType::$typesMap)) {
return array();
}
$datatype_schema = $this->message->getSchema("composite", $datatype_name);
$datatype_xpath = new CHL7v2MessageXPath($datatype_schema);
$fields = $datatype_xpath->query("//field");
foreach ($fields as $_field) {
$_component_datatype = $datatype_xpath->queryTextNode("datatype", $_field);
$children = array();
$this->readDataTypeSchema($children, $_component_datatype, $fullpath_component);
$_datatypes[] = array("name" => $_component_datatype, "fullpath" => "{$fullpath_component}/{$_component_datatype}", "datatype" => $_component_datatype, "children" => $children);
}
}