void Device::addDeviceDataItem(DataItem& dataItem) {
if (!dataItem.getSource().empty())
mDeviceDataItemsBySource[dataItem.getSource()] = &dataItem;
if (!dataItem.getName().empty())
mDeviceDataItemsByName[dataItem.getName()] = &dataItem;
if (mDeviceDataItemsById[dataItem.getId()] != NULL) {
sLogger << dlib::LERROR << "Duplicate data item id: " << dataItem.getId() << " for device "
<< mName << ", skipping";
} else {
mDeviceDataItemsById[dataItem.getId()] = &dataItem;
}
}
/* Agent public methods */
Agent::Agent(const string& configXmlPath)
{
try
{
// Load the configuration for the Agent
mConfig = new XmlParser(configXmlPath);
}
catch (exception & e)
{
logEvent("Agent::Agent",
"Error loading xml configuration: " + configXmlPath);
delete mConfig;
throw (string) e.what();
}
// Grab data from configuration
mDevices = mConfig->getDevices();
list<Device *>::iterator device;
for (device = mDevices.begin(); device != mDevices.end(); device++)
{
mDeviceMap[(*device)->getName()] = *device;
std::map<string, DataItem*> items = (*device)->getDeviceDataItems();
std::map<string, DataItem *>::iterator item;
for (item = items.begin(); item != items.end(); item++)
{
DataItem *d = item->second;
mDataItemMap[d->getId()] = d;
}
}
// Unique id number for agent instance
mInstanceId = getCurrentTimeInSec();
// Sequence number and sliding buffer for data
mSequence = 1;
mSlidingBuffer = new sliding_buffer_kernel_1<ComponentEvent *>();
mSlidingBuffer->set_size(SLIDING_BUFFER_EXP);
// Initialize the buffer
for (unsigned int i = 0; i < mSlidingBuffer->size(); i++)
{
(*mSlidingBuffer)[i] = 0;
}
// Mutex used for synchronized access to sliding buffer and sequence number
mSequenceLock = new dlib::mutex;
}
/* Add values for related data items UNAVAILABLE */
void Agent::disconnected(Adapter *anAdapter, vector<Device*> aDevices)
{
string time = getCurrentTime(GMT_UV_SEC);
sLogger << LDEBUG << "Disconnected from adapter, setting all values to UNAVAILABLE";
std::vector<Device*>::iterator iter;
for (iter = aDevices.begin(); iter != aDevices.end(); ++iter) {
std::map<std::string, DataItem *> dataItems = (*iter)->getDeviceDataItems();
std::map<std::string, DataItem*>::iterator dataItemAssoc;
for (dataItemAssoc = dataItems.begin(); dataItemAssoc != dataItems.end(); ++dataItemAssoc)
{
DataItem *dataItem = (*dataItemAssoc).second;
if (dataItem != NULL && (dataItem->getDataSource() == anAdapter ||
(anAdapter->isAutoAvailable() &&
dataItem->getDataSource() == NULL &&
dataItem->getType() == "AVAILABILITY")))
{
ComponentEventPtr *ptr = mLatest.getEventPtr(dataItem->getId());
if (ptr != NULL) {
const string *value = NULL;
if (dataItem->isCondition()) {
if ((*ptr)->getLevel() != ComponentEvent::UNAVAILABLE)
value = &sConditionUnavailable;
} else if (dataItem->hasConstraints()) {
std::vector<std::string> &values = dataItem->getConstrainedValues();
if (values.size() > 1 && (*ptr)->getValue() != sUnavailable)
value = &sUnavailable;
} else if ((*ptr)->getValue() != sUnavailable) {
value = &sUnavailable;
}
if (value != NULL)
addToBuffer(dataItem, *value, time);
}
} else if (dataItem == NULL) {
sLogger << LWARN << "No data Item for " << (*dataItemAssoc).first;
}
}
}
}
void Checkpoint::addComponentEvent (ComponentEvent *anEvent)
{
if ( mHasFilter )
{
if ( mFilter.count(anEvent->getDataItem( )->getId( )) == 0 )
{
return;
}
}
DataItem * item = anEvent->getDataItem( );
string id = item->getId( );
ComponentEventPtr *ptr = mEvents[id];
if ( ptr != NULL )
{
bool assigned = false;
if ( item->isCondition( ) )
{
// Chain event only if it is normal or unavailable and the
// previous condition was not normal or unavailable
if ( ( ( *ptr )->getLevel( ) != ComponentEvent::NORMAL ) &&
( anEvent->getLevel( ) != ComponentEvent::NORMAL ) &&
( ( *ptr )->getLevel( ) != ComponentEvent::UNAVAILABLE ) &&
( anEvent->getLevel( ) != ComponentEvent::UNAVAILABLE )
)
{
// Check to see if the native code matches an existing
// active condition
ComponentEvent *e = ( *ptr )->find(anEvent->getCode( ));
if ( e != NULL )
{
// Replace in chain.
ComponentEvent *n = ( *ptr )->deepCopyAndRemove(e);
// Check if this is the only event...
( *ptr ) = n;
if ( n != NULL )
{
n->unrefer( );
}
}
// Chain the event
if ( ptr->getObject( ) != NULL )
{
anEvent->appendTo(*ptr);
}
}
else if ( anEvent->getLevel( ) == ComponentEvent::NORMAL )
{
// Check for a normal that clears an active condition by code
if ( anEvent->getCode( )[0] != '\0' )
{
ComponentEvent *e = ( *ptr )->find(anEvent->getCode( ));
if ( e != NULL )
{
// Clear the one condition by removing it from the chain
ComponentEvent *n = ( *ptr )->deepCopyAndRemove(e);
( *ptr ) = n;
if ( n != NULL )
{
n->unrefer( );
}
else
{
// Need to put a normal event in with no code since this
// is the last one.
n = new ComponentEvent(*anEvent);
n->normal( );
( *ptr ) = n;
n->unrefer( );
}
}
else
{
// Not sure if we should register code specific normals if
// previous normal was not found
// (*ptr) = anEvent;
}
assigned = true;
}
}
}
if ( !assigned )
{
( *ptr ) = anEvent;
}
}
else
{
mEvents[id] = new ComponentEventPtr(anEvent);
}
}
/* Agent public methods */
Agent::Agent(const string& configXmlPath, int aBufferSize, int aMaxAssets, int aCheckpointFreq)
: mPutEnabled(false), mLogStreamData(false)
{
try
{
// Load the configuration for the Agent
mXmlParser = new XmlParser();
mDevices = mXmlParser->parseFile(configXmlPath);
vector<Device *>::iterator device;
std::set<std::string> uuids;
for (device = mDevices.begin(); device != mDevices.end(); ++device)
{
if (uuids.count((*device)->getUuid()) > 0)
throw runtime_error("Duplicate UUID: " + (*device)->getUuid());
uuids.insert((*device)->getUuid());
}
}
catch (runtime_error & e)
{
sLogger << LFATAL << "Error loading xml configuration: " + configXmlPath;
sLogger << LFATAL << "Error detail: " << e.what();
cerr << e.what() << endl;
throw e;
}
catch (exception &f)
{
sLogger << LFATAL << "Error loading xml configuration: " + configXmlPath;
sLogger << LFATAL << "Error detail: " << f.what();
cerr << f.what() << endl;
throw f;
}
// Grab data from configuration
string time = getCurrentTime(GMT_UV_SEC);
// Unique id number for agent instance
mInstanceId = getCurrentTimeInSec();
// Sequence number and sliding buffer for data
mSequence = 1;
mSlidingBufferSize = 1 << aBufferSize;
mSlidingBuffer = new sliding_buffer_kernel_1<ComponentEventPtr>();
mSlidingBuffer->set_size(aBufferSize);
mCheckpointFreq = aCheckpointFreq;
mCheckpointCount = (mSlidingBufferSize / aCheckpointFreq) + 1;
// Asset sliding buffer
mMaxAssets = aMaxAssets;
// Create the checkpoints at a regular frequency
mCheckpoints = new Checkpoint[mCheckpointCount];
// Mutex used for synchronized access to sliding buffer and sequence number
mSequenceLock = new dlib::mutex;
mAssetLock = new dlib::mutex;
// Add the devices to the device map and create availability and
// asset changed events if they don't exist
vector<Device *>::iterator device;
for (device = mDevices.begin(); device != mDevices.end(); ++device)
{
mDeviceMap[(*device)->getName()] = *device;
// Make sure we have two device level data items:
// 1. Availability
// 2. AssetChanged
if ((*device)->getAvailability() == NULL)
{
// Create availability data item and add it to the device.
std::map<string,string> attrs;
attrs["type"] = "AVAILABILITY";
attrs["id"] = (*device)->getId() + "_avail";
attrs["category"] = "EVENT";
DataItem *di = new DataItem(attrs);
di->setComponent(*(*device));
(*device)->addDataItem(*di);
(*device)->addDeviceDataItem(*di);
(*device)->mAvailabilityAdded = true;
}
if ((*device)->getAssetChanged() == NULL)
{
// Create availability data item and add it to the device.
std::map<string,string> attrs;
attrs["type"] = "ASSET_CHANGED";
attrs["id"] = (*device)->getId() + "_asset_chg";
attrs["category"] = "EVENT";
DataItem *di = new DataItem(attrs);
di->setComponent(*(*device));
(*device)->addDataItem(*di);
(*device)->addDeviceDataItem(*di);
}
}
// Reload the document for path resolution
mXmlParser->loadDocument(XmlPrinter::printProbe(mInstanceId, mSlidingBufferSize,
mMaxAssets,
mAssets.size(),
mSequence, mDevices));
/* Initialize the id mapping for the devices and set all data items to UNAVAILABLE */
for (device = mDevices.begin(); device != mDevices.end(); ++device)
{
const std::map<string, DataItem*> &items = (*device)->getDeviceDataItems();
std::map<string, DataItem *>::const_iterator item;
for (item = items.begin(); item != items.end(); ++item)
{
// Check for single valued constrained data items.
DataItem *d = item->second;
const string *value = &sUnavailable;
if (d->isCondition()) {
value = &sConditionUnavailable;
} else if (d->hasConstraints()) {
std::vector<std::string> &values = d->getConstrainedValues();
if (values.size() == 1)
value = &values[0];
}
addToBuffer(d, *value, time);
if (mDataItemMap.count(d->getId()) == 0)
mDataItemMap[d->getId()] = d;
else {
sLogger << LFATAL << "Duplicate DataItem id " << d->getId() <<
" for device: " << (*device)->getName() << " and data item name: " <<
d->getName();
exit(1);
}
}
}
}
