/**
* Generated resource id for specified resource First check the available counter, otherwise
* increment counter and return
*
* @param connection - DB Connection instance
* @param freeCounterBean - Bean corresponding to os_free_counter_tbl
* @return - generated resource-id, -1 is error occurred
* @throws SQLException
*/
public int getResourceId(Connection connection, FreeCounterBean freeCounterBean)
throws SQLException {
LOG.trace("Start ResourceIdManager#getResourceId()");
int resourceCounter = -1;
/*
* Check if any resource counter is available that can be used
*/
final FreeCounterDao freeCounterDao = new FreeCounterDao();
resourceCounter = freeCounterDao.getCounter(connection, freeCounterBean);
freeCounterBean.setResourceCounter(resourceCounter);
/*
* resource counter is available in free resource counter pool then use
* the same after deleting that from free resource counter pool. On the
* other hand increment counter and return.
*/
if (resourceCounter != -1) {
if (freeCounterDao.deleteCounter(connection, freeCounterBean) != 1) {
LOG.error("Error in deletion of resource counter from os_free_counter_tbl.");
resourceCounter = -1;
}
} else {
LOG.info("Resource counter is not available in os_free_counter_tbl.");
LOG.debug(
"Resource counter required to be generated for : "
+ freeCounterBean.getResourceId()
+ " and vtn_name : "
+ freeCounterBean.getVtnName());
if (freeCounterBean
.getResourceId()
.equalsIgnoreCase(VtnServiceOpenStackConsts.TENANT_RES_ID)) {
LOG.debug("Resource generation for VTN.");
final VtnDao vtnDao = new VtnDao();
resourceCounter = vtnDao.getNextId(connection);
} else if (freeCounterBean
.getResourceId()
.equalsIgnoreCase(VtnServiceOpenStackConsts.NETWORK_RES_ID)) {
LOG.debug("Resource generation for vBridge.");
final VBridgeDao vBridgeDao = new VBridgeDao();
resourceCounter = vBridgeDao.getNextId(connection, freeCounterBean.getVtnName());
} else if (freeCounterBean
.getResourceId()
.equalsIgnoreCase(VtnServiceOpenStackConsts.PORT_RES_ID)) {
LOG.debug("Resource generation for port/router interface.");
final VBridgeInterfaceDao vbrInterfaceDao = new VBridgeInterfaceDao();
int portResourceCounter =
vbrInterfaceDao.getNextId(connection, freeCounterBean.getVtnName());
final VRouterInterfaceDao vrtInterfaceDao = new VRouterInterfaceDao();
int interfaceResourceCounter =
vrtInterfaceDao.getNextId(connection, freeCounterBean.getVtnName());
resourceCounter = portResourceCounter + interfaceResourceCounter - 1;
}
}
LOG.info("Resource counter that will be used : " + resourceCounter);
LOG.trace("Complete ResourceIdManager#getResourceId()");
return resourceCounter;
}
/**
* Manages the counters for all kind of resources available for OpenStack operations
*
* @param connection
* @param freeCounterBean
* @param resourceBean
* @param ifIds2
* @return
* @throws SQLException
*/
private boolean manageCounter(
Connection connection,
FreeCounterBean freeCounterBean,
Object resourceBean,
List<Integer> ifIds)
throws SQLException {
boolean result = false;
final FreeCounterDao freeCounterDao = new FreeCounterDao();
/*
* delete child counters in case of parent entity is deleted
*/
if (freeCounterBean.getResourceId().equalsIgnoreCase(VtnServiceOpenStackConsts.TENANT_RES_ID)) {
FreeCounterBean localBean = new FreeCounterBean();
localBean.setVtnName(((VtnBean) resourceBean).getVtnName());
freeCounterDao.deleteVtnChilds(connection, localBean);
} else if (freeCounterBean
.getResourceId()
.equalsIgnoreCase(VtnServiceOpenStackConsts.NETWORK_RES_ID)
|| freeCounterBean
.getResourceId()
.equalsIgnoreCase(VtnServiceOpenStackConsts.ROUTER_RES_ID)) {
if (ifIds.size() > 0) {
// insert unused counter into os_free_resource_counter table
FreeCounterBean localBean = new FreeCounterBean();
localBean.setResourceId(VtnServiceOpenStackConsts.PORT);
localBean.setVtnName(freeCounterBean.getVtnName());
for (int i = 0; i < ifIds.size(); i++) {
localBean.setResourceCounter(ifIds.get(i));
freeCounterDao.insertCounter(connection, localBean);
}
}
}
/*
* if resource counter is 0, then no need to insert resource counter in
* pool
*/
if (freeCounterBean.getResourceCounter() == 0) {
LOG.debug(
"Resource counter is not auto-generated, insertion not required in os_res_counter table.");
result = true;
} else {
LOG.debug("Resource is auto-generated, insertion required in os_res_counter table.");
result = freeCounterDao.insertCounter(connection, freeCounterBean) == 1;
}
return result;
}