/**
* Load the next bunch of items
*
* @return void
* @access public
* @since 3/1/06
*/
function loadNext()
{
$dbc = Services::getService("DatabaseManager");
// get the list of the next set of Ids
$query = new SelectQuery();
$query->addTable("log_entry");
$query->addColumn("id", "entry_id", "log_entry");
$query->setDistinct(true);
$query->addOrderBy("timestamp", DESCENDING);
$this->addWhereClauses($query);
$query->limitNumberOfRows($this->_numPerLoad);
if ($this->_currentRow) {
$query->startFromRow($this->_currentRow + 1);
}
// printpre('CurrentRow at load: '.$this->_currentRow);
// printpre($query->asString());
$results = $dbc->query($query, $this->_dbIndex);
$nextIds = array();
while ($results->hasNext()) {
$row = $results->next();
$nextIds[] = $row['entry_id'];
}
// printpre($nextIds);
/*********************************************************
* Load the rows for the next set of Ids
*********************************************************/
$query = new SelectQuery();
$query->addTable("log_entry");
$query->addColumn("id", "id", "log_entry");
$query->addColumn("timestamp", "timestamp", "log_entry");
$query->addColumn("category", "category", "log_entry");
$query->addColumn("description", "description", "log_entry");
$query->addColumn("backtrace", "backtrace", "log_entry");
$subQuery = new SelectQuery();
$subQuery->addColumn("*");
$subQuery->addTable("log_agent");
$subQuery->addWhereIn("fk_entry", $nextIds);
$query->addDerivedTable($subQuery, LEFT_JOIN, "log_entry.id = tmp_agent.fk_entry", "tmp_agent");
$query->addColumn("fk_agent", "agent_id", "tmp_agent");
$subQuery = new SelectQuery();
$subQuery->addColumn("*");
$subQuery->addTable("log_node");
$subQuery->addWhereIn("fk_entry", $nextIds);
$query->addDerivedTable($subQuery, LEFT_JOIN, "log_entry.id = tmp_node.fk_entry", "tmp_node");
$query->addColumn("fk_node", "node_id", "tmp_node");
$query->addWhereIn("id", $nextIds);
$query->addOrderBy("timestamp", DESCENDING);
$query->addOrderBy("id", ASCENDING);
// printpre($query->asString());
$results = $dbc->query($query, $this->_dbIndex);
$i = $this->_current;
$currentEntryId = null;
$timestamp = null;
$category = null;
$description = null;
$backtrace = '';
$agents = array();
$nodes = array();
while ($results->hasNext()) {
$row = $results->next();
// Create the entry if we have all of the data for it.
if ($currentEntryId && $currentEntryId != $row["id"]) {
// printpre("Creating Entry: ".$currentEntryId." ".$timestamp." -- ".($i+1)." of ".$this->_count);
$this->_entries[$i] = new HarmoniEntry($dbc->fromDBDate($timestamp, $this->_dbIndex), $category, $description, $backtrace, array_unique($agents), array_unique($nodes), $this->_formatType, $this->_priorityType);
$i++;
$this->_currentRow++;
$currentEntryId = null;
$timestamp = null;
$category = null;
$description = null;
$backtrace = '';
$agents = array();
$nodes = array();
}
$currentEntryId = $row["id"];
$timestamp = $row["timestamp"];
$category = $row["category"];
$description = $row["description"];
$backtrace = $row["backtrace"];
$agents[] = $row["agent_id"];
$nodes[] = $row["node_id"];
// printpre($currentEntryId." ".$timestamp." ".$this->_currentRow);
}
$results->free();
// get the last entry if we are at the end of the iterator
if ($currentEntryId && $i == $this->_count - 1) {
// printpre("Creating Entry: ".$currentEntryId." ".$timestamp." -- ".($i+1)." of ".$this->_count);
$this->_entries[$i] = new HarmoniEntry($dbc->fromDBDate($timestamp, $this->_dbIndex), $category, $description, $backtrace, array_unique($agents), array_unique($nodes), $this->_formatType, $this->_priorityType);
}
}
/**
* Return the names of writable Logs.
*
* @return object StringIterator
*
* @throws object LoggingException An exception with one of the
* following messages defined in org.osid.logging.LoggingException
* may be thrown: {@link
* org.osid.logging.LoggingException#UNIMPLEMENTED UNIMPLEMENTED},
* {@link org.osid.logging.LoggingException#OPERATION_FAILED
* OPERATION_FAILED}, {@link
* org.osid.logging.LoggingException#CONFIGURATION_ERROR
* CONFIGURATION_ERROR}, {@link
* org.osid.logging.LoggingException#PERMISSION_DENIED
* PERMISSION_DENIED}
*
* @access public
*/
function getLogNamesForWriting()
{
$dbc = Services::getService("DatabaseManager");
$query = new SelectQuery();
$query->addColumn("log_name");
$query->addTable("log_entry");
$query->setDistinct(true);
$query->addOrderBy("log_name");
$results = $dbc->query($query, $this->_dbIndex);
$names = array();
while ($results->hasNext()) {
$names[] = $results->field("log_name");
$results->advanceRow();
}
$results->free();
$iterator = new HarmoniIterator($names);
return $iterator;
}
/**
* Get all NodeTypes used in this Hierarchy.
*
* @return object TypeIterator
*
* @throws object HierarchyException An exception with one of
* the following messages defined in
* org.osid.hierarchy.HierarchyException may be thrown: {@link
* org.osid.hierarchy.HierarchyException#OPERATION_FAILED
* OPERATION_FAILED}, {@link
* org.osid.hierarchy.HierarchyException#PERMISSION_DENIED
* PERMISSION_DENIED}, {@link
* org.osid.hierarchy.HierarchyException#CONFIGURATION_ERROR
* CONFIGURATION_ERROR}, {@link
* org.osid.hierarchy.HierarchyException#UNIMPLEMENTED
* UNIMPLEMENTED}
*
* @access public
*/
function getNodeTypes()
{
$dbHandler = Services::getService("DatabaseManager");
$query = new SelectQuery();
// set the tables
$query->addTable("az2_node");
$joinc = "az2_node.fk_type = az2_node_type.id";
$query->addTable("az2_node_type", INNER_JOIN, $joinc);
$hierarchyIdValue = $this->_id->getIdString();
$query->addWhereEqual("az2_node.fk_hierarchy", $hierarchyIdValue);
// set the columns to select
$query->setDistinct(true);
$query->addColumn("id", "id", "az2_node_type");
$query->addColumn("domain", "domain", "az2_node_type");
$query->addColumn("authority", "authority", "az2_node_type");
$query->addColumn("keyword", "keyword", "az2_node_type");
$query->addColumn("description", "description", "az2_node_type");
$queryResult = $dbHandler->query($query, $this->_cache->_dbIndex);
$types = array();
while ($queryResult->hasMoreRows()) {
// fetch current row
$arr = $queryResult->getCurrentRow();
// create type object
$type = new HarmoniType($arr['domain'], $arr['authority'], $arr['keyword'], $arr['description']);
// add it to array
$types[] = $type;
$queryResult->advanceRow();
}
$queryResult->free();
$result = new HarmoniTypeIterator($types);
return $result;
}
function fill(SelectQuery $selectQuery, EntityQueryBuilder $entityQueryBuilder)
{
$selectQuery->setDistinct();
}